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MIDMARK 319 O/R Table Service Manual

1. MA395100 Figure 4 3 Up Functions Shuttle Valve Removal Installation 4 5 Down Functions Shuttle Valve Removal Installation A Removal WARNING Always disconnect the power cord from the outlet before removing any of the table s covers shrouds or making any repairs to prevent the possibility of electrical shock Failure to comply with these instructions could result in severe personal injury or death 1 Unplug table power cord from outlet 2 Remove motor cover assembly Refer to para 4 2 Midmark Corporation 1997 SF 1555 SECTION IV MAINTENANCE SERVICE NOTE The down functions shuttle valve is slightly lower than the oil level in the motor pump reservoir and oil will flow out of the down functions shuttle valve once the hose assembly is disconnected 3 Place rags or drain pan A under down func tions shuttle valve 1 Figure 4 4 MA395200 Figure 4 4 Down Functions Shuttle Valve Removal Installation 4 Using a wrench to hold male connector 2 stationary loosen jam nut B of elbow 3 Disconnect elbow from male connector b Remove elbow 3 from down function shuttle valve 1 6 Remove down functions shuttle valve 1 from motor pump 4 Printed in U S A SECTION IV MAINTENANCE SERVICE B Installation NOTE The down functions shuttle valve is sent from factory with an elbow installed on it Remove it per step 1 1 Remove elbow fr
2. 319 Ritter by MIDMARIK Power Examination Service and Table Parts Manual Serial Number Prefix HN KK KL amp V Ao Ou se a printed copy of this manual To purcha click on the Place Order button below 319 thru 006 FOR USE BY MIDMARK TRAINED TECHNICIANS ONLY MA382400 7 SF 1555 Part No 004 0065 00 Rev M 4 09 08 Style B TABLE OF CONTENTS Section Paragraph Page IMPORTANTINSTRUCTIONS General Safety iii VE le LE iii Warranty Instructions 2220 iii SECTION GENERAL INFORMATION 1 1 Scope of En EE 1 1 1 2 Howto Use Manual 1 1 1 3 Description of 319 Power Examination ioc e 1 1 1 4 Standard Torque Specifications 1 4 1 5 Specifications E 1 4 1 6 Parts Replacement Ordering 1 5 1 7 Special TOONS itin tione Ente todas 1 6 SECTION II TESTING AND TROUBLESHOOTING 2 1 Operational Test 2 1 2 2 Troubleshooting Procedures 2 1 SECTION 1 SCHEDULED MAINTENANCE 3 1 Scheduled Maintenance 3 1 SECTION IV MAINTENANCE SERVICE INSTRUCTIONS 4 1 Introduction ME 4 1 4 2 Motor Cover Assembly Removal Installation EE 4 1 4 3 Checking Adding Oil To Motor Pump 4 1 4 4 Functions Shuttle Valve Removal I
3. Approx 2 5 quarts 2 4 liters Motor Pump Reservoir Capacity 1 quart 946 liter Electrical Requirements 115 VAC Unit geb gege toni en 110 120 VAC 60 HZ 12 amp single phase 230 VAC Unit 220 240 VAC 50 60 HZ 12 amp single phase Power Consumption 115 VAC Unit ML 960 WATTS 8 amps 120 VAC E 960 WATTS 4 amps 240 VAC Hecommended Circuit A separate dedicated circuit is recommended for this table The table should notbe connected to an electrical circuit with other appliances or equipment unless the circuit is rated for the additional load Up Function Relief Valve Setting Valve opens at 525 to 600 PSI 36 2 to 41 4 BARS Down Function Relief Valve Setting Valve opens at 250 to 325 PSI 17 2 to 22 4 BARS Printedin U S A Return To Table Of Contents SECTION I GENERAL INFORMATION 70 LONG MIN 80 LONG MAX Figure 1 3 Model Number Serial Number Location MA398500 2 Refer to the Parts List to determine the item numbers of the parts part numbers of the parts 1 6 Parts Replacement Ordering descriptions of the parts and quantities of parts needed and record this data Refer to para 6 1 Figure 1 2 Table Dimensions If a part replacement is required order the part directly from the factory as follows NOTE Ask the Purchasing Department of the com
4. Replace suspect relief valves with known working relief valves Replace suspect up functions relief valve with known working relief valve Replace suspect down functions relief valve with known working relief valve Check tension of chain assemblies SECTION II Adjust pan safety limit switch so it is tripped when treatment pan assembly is pushed in all the way Replace pan safety limit switch Refer to para 4 18 Replace malfunctioning cylinder assembly Replace foot switch Refer to para 4 24 Replace anti cavitation solenoid valve Refer to para 4 6 If necessary add oil to reservoir Refer to para 4 3 Replace up functions and down functions relief valves Refer to paras 4 7 and 4 8 Replace up functions relief valve Refer to para 4 7 Replace down functions relief valve Refer to para 4 8 Adjust tension of chain assemblies Refer to para 4 19 Check condition of base Replace base slide assembly slide assembly Refer to para 4 20 Printed in U S A Return To Table Of Contents SECTION Il TESTING AND TROUBLESHOOTING O Midmark Corporation 1997 SF 1555 Page 2 8 Printed in U S A Return To Table Of Contents SECTION Ill SCHEDULED MAINTENANCE SECTION SCHEDULED MAINTENANCE 3 1 Scheduled Maintenance periodically on the table These inspections and services should be performed as often as indicated in Table 3 1 is a Scheduled Maintenance Chart which lists the chart
5. terminal block 5 13 While supporting foot end of table top remove four E rings 10 two clevis pins 11 and tilt 7 Pull tilt cylinder wires 4 out thru wire hole cylinder 8 from brackets 12 8 Remove four screws 1 Figure 4 15 and front B Installation outer shroud 2 from left and right hand outer shrouds 3 1 Install tilt cylinder 8 Figure 4 15 on brackets 12 and secure with two clevis pins 11 and 9 Remove eight screws 4 and front inner shroud four E rings 10 5 from left and right hand inner shrouds 6 WARNING Make sure the safety cable B is properly installed on the return and 10 Disconnect return manifold 7 from rod end of tilt cylinder 8 power manifolds Failure to do so could result in serious personal injury to patient or table opera tor 11 Disconnect power manifold 9 from base of tilt cylinder 8 O Midmark Corporation 1997 SF 1555 Page 4 13 Printed in U S A Return To Table Of Contents SECTION IV MAINTENANCE SERVICE Midmark Corporation 1997 SF 1555 MA393600 Figure 4 15 Tilt Cylinder Removal Installation 2 Connect power manifold 9 to base of tilt cylinder 8 making sure safety cable B is properly installed 3 Connect return manifold 7 to rod end of tilt cylinder 8 4 Secure wire harnesses and hose assemblies to tilt cylinder 8 with a cable tie 5 Route tilt cylinder wires 4 Figure 4 14
6. 040 0250 04 057 0027 00 042 0005 03 042 0005 01 042 0004 00 050 1475 40 040 0375 00 016 0001 00 015 0001 00 040 001 0 04 030 1057 00 042 0045 01 BASE REPAIR KIT COMPONENTS Description Set Screw Tilt PivotPin Clevis Pin Base Cylinder Referto Hydraulic System Elsewhere Clevis Pin Hitch Pin Clip Leveling Screw Wire Clip Stationary Base Weldment e Nutsert 2 SOS OS e SS SK Vm m 0 LS gt WIP OS A e AS SS ESSE ES MA swf Va e Ojo 042 0007 00 042 0006 01 042 0006 02 002 0514 00 e 040 0250 89 e 030 1010 00 e 041 0250 13 Always Specify Model amp Serial Number Midmark Corporation 1997 SF 1555 Rev 2 04 Page 6 17 1 MA224201 Description Base Slide Assembly Referto Breakdown Elsewhere Clevis Pin Tilt Cylinder Assembly Referto Hydraulic System Elsewhere Clevis Pin Seat Weldment Referto Seat Components Elsewhere Base Repair Kit Includes Items 20 thru 22 Notused with Rotational Bases Base Cylinder Mount Weldment Printed in U S A Return To Table Of Contents SECTIONVI Base Slide Assembly riens BY eme EEN 224100 Part No Description f Part No Description 029 0069 03 Base Slide Assembly Includes e 040 0375 00 Items 1 thru 22 e 029 0071 03 Idler Adjuster Assembly Includes e 029 0072 05 Mi
7. the inspections and services that should be performed Table 3 1 Scheduled Maintenance Chart Inspection or Service What to Do Semi annually Obvious damage Visually check condition of table for obvious damage such as cracks in components missing components dents in components leaking oil or any other visible damage which would cause table to be unsafe to operate or would compromise its performance Repair table as necessary Fasteners hardware Check table for missing or loose fasteners hardware Replace any missing hardware and tighten any loose hardware as necessary Warning and Check for missing or illegible decals Replace decals as necessary instructional decals Pivot points moving Lubricate all exposed pivot points moving parts and accessories with silicone based lubricant parts accessories Hydraulic hoses and Check all hydraulic hoses and fittings for leaks Replace any components causing leaks Replace fittings any hoses which have kinks cuts holes or other damage Foot control Check that foot control works correctly Make sure foot pedals contact switch properly Hydraulic functions Check that all four functions operate properly If not refer to the Troubleshooting Guide to determine the cause of the problem Clean or replace components as necessary Cylinders Inspect all cylinders for signs of internal leaking or for weak operation Replace cylinders as necessary Drift in table Check each cylinder to see if it
8. B Installation 1 Position base cylinder 3 Figure 4 18 on table 2 Connect base tee 8 to base cylinder 3 3 Connect hose assembly 7 to base cylin der 3 4 Secure hose assembly 7 to base cylinder 3 with two cable ties B 5 Install base cylinder 3 on brackets 6 and secure with clevis pins 2 and 5 and hitch pin clips 1 and 4 6 Feed base cylinder wires 4 Figure 4 17 thru wire hole B 7 Connect two base cylinder wires 4 to terminal block 5 and secure by tightening two terminal screws A 8 Install control cover 2 on control panel 3 and secure with two screws 1 9 Plug table power cord into outlet 10 See Figure 4 16 Raise BASE UP function slightly and remove block from under middle slide of base slide assembly 9 or remove supports from under table top 11 Lower BASE DOWN function all the way down Printed in U S A Return To Table Of Contents SECTION IV MAINTENANCE SERVICE 12 See Figure 4 19 If there is nota 1 16 to 1 8 13 Raise BASE UP function up until cylinder rod is inch 1 6 to 3 2 mm gap A between inner extended halfway member weldment B and top of middle slide C when the BASE DOWN function is com 14 Place a wrench on adjusting seats D of pletely lowered it is especially important that cylinder rod E and use it to rotate cylinder rod the inner member weldment does not come into to adjust clevis F up or down as necessary cont
9. Fixed Armboard e Welch Allen Hanger Accessory 9A182 e Base Rail Welch Allen Brkt 9A184 Swivel Wheel Caster Accessory 9A197 Round Headrest Special Procedures Headrest Color Panels Not Shown Knee Crutch Assembly e Wrist Support Single e Wrist Support Double Seat Rail e Instrument Tray Assembly e Instrument Tray 9A82 9A199 Printedin U S A Return To Table Of Contents Pictorial Index 3 4 5 6 7 8 9 0 1 sech ml N Part No 319 005 319 006 SECTIONVI PARTSLIST Bleck pholstery Shown MA437700 Used on units with Serial Number KK 1000 and KL 1000 Used on units with Serial Number V2200 thru Present Description Page PartNo Power Examination Table 115 V Serial Number Prefix KK Power Examination Table 220 V Serial Number Prefix KL e Back Components Upholstery Set Standard Upholstery Set Narrow e Upholstery Set Styled e Upholstery Set Thermoform Hydraulic System Headrest Assembly Seat Components e Stirrup Assembly e Footboard Components Base Covers And Enclosures Base Mechanical Components se Base Slide Assembly Base Electrical Comp Domestic 6 19 Base Electrical Comp Export e e Motor Pump Assembly e Foot Control Assembly Midmark Corporation 1997 SF 1555 Rev 2 04 9A4300X e 9A5100X e 9A6000X e 9A7500X 9A7700X e 9A7800X
10. 2 1 2 1 FOOT SWITCH FOOT SWITCH WHITE BASE CYLINDER 06 MA406300 IN OFF IN ON POSITION POSITION Figure 5 7 Wiring Diagram Used on Units with Serial Number KL1000 thru Present Midmark Corporation 1997 SF 1555 Rev 11 05 Page 5 7 Printedin U S A SECTION V SCHEMATICS AND DIAGRAMS BLACK Return To Table Of Contents CONNECTION TO PRIMARY OF TRANSFORMER DEPENDS ON TABLE DESTINATION Ba 220 V A C 1 4 AMPS 50 HZ Midmark Corporation 1997 SF 1555 BLACK ISOLATION TRANSFORMER 0 Alc NEN WHITE T2 CAPACITORS M FOOT SWITCHES 49 FOOT UP Be TABLE DOWN 49 OF TABLE UP e Page 5 8 BLACK RED BLACK BLUE WHITE BLUE ANTI CAVITATION SOLENOID VALVE PAN SAFETY UE LIMIT SWITCH Om OQ COM N O O 3 tn FOOT CYLINDER SOLENOID VALVE TILT CYLINDER SOLENOID 2 VALVE TIME DELAY RELAY CYLINDER SOLENOID VALVE BASE CYLINDER SOLENOID VALVE MA406400 Figure 5 8 Electrical Schematic Used on Units with Serial Number KL1000 thru Present Printed in U S A Return To Table Of Contents SECTION V SCHEMATICS AND DIAGRANIS 5 2 Hydraulic Flow Diagrams table when an up function is selected Figure 5 10 illustrates the hydraulic oil flow through the table when a Figure 5 9 illustrates the hydraulic oil flow through the down function is selected UP FUNCTIONS HYDRAULIC OIL FLOW CYLINDER
11. 3 4 5 6 7 8 sch ch O1 4 C5 I9 Midmark Corporation 1997 SF 1555 Rev 1 02 Page 6 4 1 Printedin U S A 1 2 d 4 5 6 7 8 SECTIONVI PARTSLIST MA266901 Used on units with Serial Number HH 1393 and HN 1070 thru Present Used on units with Serial Number V2200 thru Present Part No 050 0472 40 045 0001 12 042 0010 03 030 1332 40 042 0010 11 002 0146 00 016 0022 00 040 0250 88 045 0001 31 015 0082 02 040 0010 04 040 0250 39 045 0001 05 040 0375 46 Description Paper Cover Curved Washer Pop Rivet Back Weldment Pop Rivet Paper Tear Strip Set 24 Upholstered Back Section Refer to Upholstery Set Elsewhere Lockwasher Grounding Braid Lockwasher Screw Plug Midmark Corporation 1997 SF 1555 Rev 2 04 Part No 042 0007 00 042 0006 01 042 0006 02 016 0542 00 061 0117 00 050 0872 40 040 0006 06 045 0001 29 040 0312 08 050 4924 40 Always Specify Model amp Serial Number Description Clevis Pin Back Cylinder Refer to Hydraulic System Elsewhere Clevis Pin Slide Latch Assembly Two Arm Headlock Assembly Refer to Headrest Assembly Elsewhere Standards Label Back Cover Serial Number Washer Flat Support Plate Printed in U S A Return To Table Of Contents Back Components SECTIONVI PARTSLIST MA437600 Part No Description Part No Description 050
12. Control Cover Wire Assembly Refer to Wiring Diagram Elsewhere Section 5 Control Panel Snap Bushing P W PDP Midmark Corporation 1997 SF 1555 002 0041 00 045 0001 21 040 0006 00 041 0006 01 015 0009 01 015 0022 01 040 0006 33 053 0068 06 040 001 0 47 Time Delay Relay Kit Terminal Block Jumper Not Shown Snap Bushing 025 0025 00 041 0010 02 015 0412 02 040 0010 28 002 0044 00 015 0413 01 050 0957 00 015 0008 00 053 0068 10 Always Specify Model amp Serial Number Capacitor Kit 124 149 MFD 250V 2 Capacitor Cap 2 Strain Relief Bracket Strain Relief Bushing Snap Bushing Printedin U S A SECTIONVI PARTSLIST MA226000 Used on units with Serial Number HH 1000 amp HN 1000 thru Present Used on units with Serial Number V2200 thru V50301 Item 1 Part No 041 0250 13 053 0051 00 050 1533 20 040 0010 34 050 1532 20 053 0068 09 002 0041 00 045 0001 21 040 0006 00 041 0006 01 015 0009 01 015 0022 01 040 0006 33 053 0068 06 040 0010 47 050 2489 40 002 0869 00 e 015 0346 20 040 0004 1 1 053 0071 00 Description Motor Pump Assembly Refer to Breakdown Elsewhere Motor Mount Control Cover Control Panel Snap Bushing Time Delay Relay Terminal Block Jumper Not Shown Snap Bushing Receptacle Bracket Appliance Inlet Replacement Kit Caplug Midmark Corporation 1997 SF
13. Includes Items 1 thru 11 e 040 0010 47 e 029 2951 02 Stirrup Assembly Includes 016 0400 00 Stirrup Index Spring Items 2 thru 4 040 0375 00 e e 020 0239 30 ee Coated Stirrup e 053 0050 05 Hole Plug 1 Used on R H Stirrup e e 042 0001 00 ee Roll bm Mount Weldment 2 Used on R H e e 051 1003 01 ee Stirrup Bar Stirrup Mount Weldment e 053 0387 00 Pivot Boss 061 0279 00 Stirrup Instruction Label Used on L H e 030 0736 40 R H Stirrup Mount Weldment Stirrup Mount Weldments Only Shown Always Specify Model amp Serial Number Midmark Corporation 1997 SF 1555 Rev 2 04 Page 6 14 1 Printed in U S A Footboard Components reddo Go MA247200 Part No Description Item Part No Description Upholstered Foot Rest Refer to 13 016 0092 00 Upholstery Set Elsewhere 050 0871 00 Foot Trim Upholstered Leg Rest Refer to 030 0886 40 Foot Extension Weldment Upholstery Set Elsewhere 042 0005 03 Clevis Pin 029 1646 01 Footrest Assembly Includes 042 0004 00 Pin Clip Items 4 thru 9 Foot Cylinder Refer to Hydraulic e 030 1113 40 Footboard Weldment System Elsewhere e 050 0868 00 Catch Channel 045 0001 31 Lockwasher 042 0010 02 040 0010 04 e 025 0045 01 et H Spring Shown 016 0076 00 Bushing 025 0045 000 R H Spring Not Shown 015 0082 01 Ground Braid 042 0010 11 045 0004 00 016 0542 00 e Slide Latch Assembly 042 0014 00 042 0010 04 Pop Rive
14. Midmark Corporation 1997 SF 1555 Tam VC Les u Xv a ca is AU fv M POR Ge A NA D 5 2 LE W LA E ed Ga Hj TUM um Return To Table Of Contents Kee LOE SSIS Q 3059 AV CQO 59 ege Cen SES SA P D erg Ki P f Kork LSA wi 5 O GANGO ARNAI SKS Gg Se D We X SCH EN A y 2 o he H 2f b facts at Le FEN SESS DNA SG H DZ Ai a DA Ga t vm M RM i E EA A d ge PM SV 7574 f Au CN wy tas TA 22 Ced Ze Description Back Inner Shroud L H Inner Shroud Less Nutserts e Nutsert Back Outer Shroud Assembly L H Outer Shroud Less Nutserts e Nutsert Nutsert Motor Cover Assembly Domestic Units Only Motor Cover Assembly Export Units Only Caution Label Domestic Units Only 1 Screw Domestic Units Only Screw Export Units Only R H Outer Shroud Less Nutserts e Nutsert nciosures Part No e 042 0045 02 053 0516 01 050 2483 01 061 0640 01 061 0640 04 050 0947 40 e 042 0045 02 045 0001 15 050 2617 40 050 0463 40 040 0010 47 040 0010 23 051 0796 40 Always Specify Model amp Serial Number Page 6 16 SECTIONVI PARTSLIST 7 2 74400 Description Nutsert Side Panel Side Panel Insert Refer to Uphol
15. To assure that services and repairs are completed safely and correctly proceed as follows 1 Read this entire manual before performing any Services or repairs on this table 2 Be sure you understand the instructions contained in this manual before attempting to service or repair this table Safety Alert Symbols Throughout this manual are safety alert symbols that call attention to particular procedures These items are used as follows DANGER A DANGER is used for an imminently hazardous operating procedure practice or condition which if not correctly followed will result in loss of life or serious personal injury WARNING A WARNING is used for a potentially hazardous operating procedure practice or condition which if not correctly followed could result in loss of life or serious personal injury CAUTION A CAUTION is used for a potentially hazardous operating procedure practice or condition which if not correctly followed could result in minor or moderate injury It may also be used to alert against unsafe practices EQUIPMENT ALERT A An EQUIPMENT ALERT is used for an imminently or potentially hazardous operating procedure practice or condition which if not correctly followed will or could result in serious moderate or minor damage to unit Midmark Corporation 1997 SF 1555 Page NOTE A NOTE is used to amplify an operating procedure practice or condition Warranty
16. e 9A8100X 9A8200X 9A8300X e 9A14700X e 9A15700X e 9A17900X e 9A18200X e 9A18400X e 9A19700X e 9A19800X e 9A19900X e 9A20000X e 9A20900X e 9A22100X e 9A22200X e 9A22800X e 9A26700X e 9A26800X Always Specify Model amp Serial Number Page 6 3 Description Page OPTIONAL ACCESSORIES Refer to MEDICAL ACCESSORY BOOK 004 0096 00 Chair Arm e Facial Pad Restraint Belts Caster Base ASSy 9A75 e V Pole e Vision Block Screen Articulating Armboard Special Procedures Armboard 9A82 e Instrument Tray Knee Crutch Assy 9A147 Side Rail Assy 9A157 e Fixed Armboard e Welch Allen Hanger Accessory 9A182 e Base Rail Welch Allen Brkt 9A184 Swivel Wheel Caster Accessory 9A197 Round Headrest Special Procedures Headrest Color Panels Not Shown Knee Crutch Assembly e Wrist Support Single e Wrist Support Double Seat Rail Instrument Tray Assembly e Instrument Tray Printedin U S A Part No 050 0472 40 045 0001 12 042 0010 03 030 0912 40 042 0010 11 002 0146 00 016 0022 00 040 0250 88 045 0001 31 015 0082 02 040 0010 04 040 0250 10 Description Paper Cover Curved Washer Pop Rivet Back Weldment Pop Rivet Paper Tear Strip Set 24 Upholstered Back Section Refer to Upholstery Set Elsewhere Lockwasher Grounding Braid Midmark C
17. thru table Page 4 14 6 Feed tilt cylinder wires 4 thru wire hole B in control panel 3 7 Connect two tilt cylinder wires 4 to terminal block 5 and secure by tightening two terminal screws A 8 Install control cover 2 on control panel 3 and secure with two screws 1 9 Install any cable ties which were removed 10 Plug table power cord into outlet 11 Lower TILT DOWN function all the way down 12 If seat section is not level with floor when the TILT DOWN function is completely lowered perform steps 13 thru 15 If seat section is level when the TILT DOWN function is com pletely lowered go to step 16 EQUIPMENT ALERT The cylinder rod C must be partially extended before performing step 14 If the cylinder rod is fully extended or retracted when step 14 is being performed damage to seals will occurr 13 Raise TILT UP function up until cylinder rod is extended halfway 14 Place a wrench on adjusting seats D Figure 4 15 of cylinder rod C and use it to rotate cylinder rod to adjust clevis E up or down as necessary 15 Repeat steps 11 thru 15 until seat section is level when TILT DOWN function is completely lowered 16 Install front inner shroud 5 on left and right hand inner shrouds 6 and secure with eight screws 4 17 Install front outer shroud 2 on left and right hand outer shrouds 3 and secure with four screws 1 18 If necessary add oil to
18. 0472 40 Paper Cover 040 0375 15 Screw Plug 045 0001 12 Curved Washer 051 0112 00 Plated Side Rail 042 0010 03 Pop Rivet 057 0057 42 Side Rail Mount 030 0912 40 Back Weldment Serial Number Label 042 0010 11 Pop Rivet 042 0007 00 002 0146 00 Paper Tear Strip Set 24 042 0006 01 Clevis Pin 016 0022 00 Back Cylinder Refer to Hydraulic System Elsewhere Upholstered Back Section Referto Upholstery Set Elsewhere 042 0006 00 Clevis Pin 040 0250 88 045 0001 31 015 0082 02 040 001 0 04 040 0250 10 045 0001 05 042 0001 02 Lockwasher Grounding Braid Lockwasher Roll Pin Midmark Corporation 1997 SF 1555 Rev 1 01 016 0542 00 061 0117 00 050 0872 40 040 0006 06 Always Specify Model amp Serial Number Slide Latch Assembly Two Arm Headlock Assembly Refer to Headrest Assembly Elsewhere Standards Label Back Cover Printed in U S A SECTIONVI PARTSLIST MA437600 Part No Description Part No Description 050 04 72 40 Paper Cover 051 0112 00 Plated Side Rail 045 0001 12 Curved Washer 057 0057 42 Side Rail Mount 042 0010 03 Pop Rivet Serial Number Label 030 1289 40 Back Weldment 042 0007 00 042 0010 11 Pop Rivet 042 0006 01 Clevis Pin 002 0146 00 Paper Tear Strip Set 24 Back Cylinder Refer to Hydraulic 016 0022 00 System Elsewhere Upholstered Back Section Refer to 042 0006 00 Clevis Pin Upholstery Set Elsewhere 016 0542 00 Slide Lat
19. 1 Figure 4 6 and back outer shroud 2 from left and right hand outer shrouds 8 NOTE The back inner shroud must be removed if it will obstruct removal of up functions relief valve 5 If necessary remove eight screws 4 and back inner shroud 5 from left and right hand inner shrouds 6 Page 4 5 SECTION IV MAINTENANCE SERVICE MA395400 Figure 4 6 Up Functions Relief Valve Removal Installation NOTE Oil will flow out of relief valve port when up functions relief valve is removed Either have the new up functions relief valve ready to install or place a drain pan under relief valve port to catch oil 6 Remove up functions relief valve 7 from motor pump 8 Printed in U S A SECTION IV MAINTENANCE SERVICE B Installation 1 Coat two o rings A on up functions relief valve 7 with mineral oil or vaseline EQUIPMENT ALERT Make sure relief valve 7 has 600 stamped on its hex head B it must not be stamped L2 Failure to install proper relief valve will result in faulty table performance 2 Install up functions relief valve 7 in motor pump 8 3 If removed install back inner shroud 5 on left and right inner shrouds 6 and secure with eight screws 4 4 Install back outer shroud 2 on left and right hand outer shrouds 3 and secure with four screws 1 5b If necessary add oil to motor pump Refer to para 4 3 6 Install mo
20. 2 Printed in U S A Seat Compone nts SECTIONVI PARTSLIST Used on units with Serial Number KK 6666 and KL 1017 thru Present Part No 016 0373 00 029 1276 01 042 0010 1 1 016 0542 00 016 0140 00 040 0010 47 040 0375 00 015 0082 01 040 0001 31 040 0010 04 041 0008 02 Used on units with Serial Number V2200 thru Present Description Qty PartNo Stirrup Assembly Includes Items 8 amp 9 Refer to Stirrup Assembly Elsewhere 2 Treatment Pan Pan Slide Assembly Upholstered Seat Section Refer to Uphholstery Set Elsewhere Pop Rivet Slide Latch Assembly Trim Lock Specify Length 1 1 2 Ground Braid Lockwasher Midmark Corporation 1997 SF 1555 Rev 2 04 015 0001 00 015 0014 00 016 0162 00 053 0050 00 030 1331 40 053 0068 06 050 1127 40 045 0001 15 045 0001 04 040 0010 35 040 0004 09 015 0425 00 045 0001 38 041 0004 01 016 0140 00 Always Specify Model amp Serial Number Page 6 13 2 Description Wire Clip Trim Lock Specify Length 11 Hole Plug Seat Weldment Snap Bushing Switch Bracket Lockwasher Limit Switch Lockwasher Trim Lock Specify Length 2 MA437500 Printed in U S A Return To Table Of Contents Stirrup Assembly enl D b os 2 e 2 1 D 1 This assembly is no longer available It has been replaced by 002 0719 04 Note This kit contains only one stirrup MA223700 Use
21. Bushing Switch Bracket Lockwasher 040 0010 47 040 0375 00 015 0082 01 040 0001 31 040 0010 04 041 0008 02 Ground Braid Lockwasher Midmark Corporation 1997 SF 1555 Rev 1 01 Page 6 13 040 0010 35 040 0004 09 015 0425 00 045 0001 38 041 0004 01 016 0140 00 Always Specify Model amp Serial Number Limit Switch Lockwasher Trim Lock Specify Length 2 Printed in U S A Return To Table Of Contents Seat Components SECTIONVI PARTSLIST MA437500 Item PartNo Description Qty Item PartNo Description 015 0001 00 Wire Clip 015 0014 00 Wire Clip 016 0162 00 Trim Lock Specify Length 11 053 0050 00 030 1288 40 053 0068 06 050 1127 40 045 0001 15 045 0001 04 1 Stirrup Assembly Includes Items 8 amp 9 Refer to Stirrup Assembly Elsewhere 2 Treatment Pan Pan Slide Assembly Upholstered Seat Section Refer to Uphholstery Set Elsewhere 042 001 0 11 Pop Rivet 016 0542 00 Slide Latch Assembly 016 0140 00 Trim Lock Specify Length 1 1 2 016 0373 00 029 1276 01 Seat Weldment Snap Bushing Switch Bracket Lockwasher 040 0010 47 040 0375 00 015 0082 01 040 0001 31 040 0010 04 041 0008 02 Ground Braid Lockwasher Midmark Corporation 1997 SF 1555 Rev 1 02 Page 6 13 1 040 0010 35 040 0004 09 015 0425 00 045 0001 38 041 0004 01 016 0140 00 Always Specify Model amp Serial Number Limit Switch Lockwasher Trim Lock Specify Length
22. Functions Hydraulic Flow Diagram O Midmark Corporation 1997 SF 1555 Page 5 10 Printed in U S A Return To Table Of Contents SECTIONVI PARTSLIST SECTION VI PARTS LIST 6 1 Introduction The illustrated parts list provides information for identify ing and ordering the parts necessary to maintain the unit in peak operating condition Referto paragraph 1 5 for parts ordering information The parts list also illustrates disassembly and assembly relationships of parts 6 2 Description of Columns The tem column of the parts list gives a component its own unique number The same number is given to the component in the parts illustration This allows a part number of a component to be found if the technician can visually spot the part on the illustration The technician simply finds the component in question on the illustra tion and notes the item number of that component Then he finds that item number in the parts list The row corresponding to the item number gives the techni cian the part number a description of the component and quantity of parts per subassembly Also if a part number is known the location of that component can be determined by looking for the item number of the component on the illustration The Part No column lists the MIDMARK part number for that component The Description column provides a physical description of the component Midmark Corporation 1997 SF 1555 Page 6 1 The Qty column
23. Install upholstered leg rest 17 on foot exten sion weldment 18 and secure by locking B two locking tabs 15 onto two studs 16 b Lower FOOT DOWN function all the way down Upholstered Seat Section Installation DANGER At completion of following step ensure that upholstered seat section is secure by lifting up on its edges Failure to secure upholstered seat section properly could result in serious injury to patient 6 Install head end of upholstered seat section 12 on seat weldment 13 making sure two studs 14 are inserted in rounded part of locking slots D then slide upholstered seat section 12 toward head end of table until two studs 11 fit thru stud holes in seat weldment 13 Secure upholstered seat section 12 in place by locking two locking tabs 10 onto two studs 11 Midmark Corporation 1997 SF 1555 Page 4 32 Return To Table Of Contents Upholstered Back Section Installation DANGER At completion of following step ensure that upholstered back section is secure by lifting up on its edges Failure to secure upholstered back section properly could result in serious injury to patient NOTE Locking tabs are in paper roll holder cavity 7 On a two piece seat amp back upholstery set install foot end of upholstered back section 7 on back weldment 8 making sure stud 9 is inserted in rounded part of locking slot C then slide upholstered back section 7
24. Instructions Refer to the Midmark Limited Warranty printed in the Installation and Operation Manual for warranty informa tion Failure to follow the guidelines listed below will void the warranty and or render the 319 Power Exami nation Table unsafe for operation e Inthe event of a malfunction do not attempt to operate the table until necessary repairs have been made Do not attempt to disassemble table replace mal functioning or damaged components or perform adjustments unless you are one of Midmark s authorized service technicians Do not substitute parts of another manufacturer when replacing inoperative or damaged components Use only Midmark replacement parts Printed in U S A Return To Table Of Contents Midmark Corporation 1997 SF 1555 Printed in U S A Return To Table Of Contents SECTION I GENERAL INFORMATION SECTION GENERAL INFORMATION 1 1 Scope of Manual This manual contains detailed troubleshooting sched uled maintenance maintenance and service instruc tions for 319 Power Examination Table This manual is intended to be used by Midmark s authorized service technicians 1 2 How to Use Manual A Manual Use When Performing Scheduled Mainte nance 1 Perform inspections and services listed in Scheduled Maintenance Chart Refer to para3 1 2 If a component is discovered to be faulty or out of adjustment replace or adjust component in accordance with maintenance
25. Raise BACK UP function up until cylinder rod is extended halfway Page 4 12 Printed in U S A Return To Table Of Contents SECTION IV MAINTENANCE SERVICE 17 Place a wrench on adjusting seats B of cylinder rod C and use it to rotate cylinder rod to adjust clevis up or down as necessary 18 7 Hepeat steps 14 thru 17 until back section is level when BACK DOWN function is completely lowered 19 Install back cover 2 on back weldment 3 and secure with four screws 1 20 If necessary add oil to motor pump Refer to para 4 3 21 Install motor cover assembly Refer to para 4 2 4 13 Tilt Cylinder Removal Installation A Removal 1 If possible lower TILT DOWN function all the Figure 4 14 Tilt Cylinder Wire way down Disconnection Connection 2 Raise FOOT UP function all the way up 12 Cut cable tie A which secures hose assem blies and wire harnesses to tilt cylinder 8 3 Unplug table power cord from outlet WARNING 4 Remove motor cover assembly Refer to The foot end of table top must be para 4 2 supported while removing tilt cylinder Failure to do will allow table top to fall which 5 Remove two screws 1 Figure 4 14 and could result in serious personal injury control cover 2 from control panel 3 NOTE 6 Loosen two terminal screws then tag and Cut cable ties as necessary to remove tilt cylinder disconnect two tilt cylinder wires 4 from
26. SCHEDULED MAINTENANCE O Midmark Corporation 1997 SF 1555 Page 3 2 Printed in U S A Return To Table Of Contents SECTION IV MAINTENANCE SERVICE SECTION IV MAINTENANCE SERVICE INSTRUCTIONS 4 1 Introduction WARNING Refer to the Operator Manual for complete instructions on operating the table Failure to do so could result in personal injury NOTE Perform an operational test on the table after the repair is completed to confirm the repair was properly made and that a malfunctions were repaired Thefollowing paragraphs contain removal installa tion repair and adjustment procedures for the table 4 2 Motor Cover Assembly Removal Installation A Hemoval WARNING Always disconnect the power cord outlet before removing any of the table s covers shrouds or making any repairs to prevent the possibility of electrical shock Failure to comply with these instructions could result in severe personal injury or death 1 Unplug table power cord from outlet NOTE 220 VAC export units contain an additional strap on each side of the back outer shroud which helps secure the back outer shroud 2 Remove six screws 1 Figure 4 1 and motor cover assembly 2 from back outer shroud 3 B Installation 1 Install motor cover assembly 2 against back outer shroud 3 and secure with six screws 1 making sure top edge of motor cover assembly is inserted behind lip A of back outer shroud 2 Pl
27. SOLENOID VALVE TIME DELAY RELAY Sou TERMINAL BLOCK INTERNAL VIEW OF FOOT SWITCHES 3 4 2 1 1 FOOT SWITCH FOOT SWITCH IN OFF IN ON POSITION POSITION BLACK 115 VAC GREEN YELLOW WHITE NEUTRAL 120 V A C 12 AMPS 60 HZ S BLACK Return To Table Of Contents SECTION V SCHEMATICS AND DIAGRAMS WHITE BLACK WHITE BLACK CAPACITORS 124 149 MFD 250 VAC fi COM PAN SAFETY LIMIT SWITCH OPTIONAL ON SOME UNITS Wire harness 015 0470 00 FOOTSWITCH ASSEMBLY NOTE IF AN UP FOOT SWITCH amp DOWN FOOT SWITCH ARE ENERGIZED AT THE SAME TIME THE CIRCUIT BECOMES INOPERATIVE um FOOT UP 5 40 10 TILT DOWN pure TILT UP GREEN GROUND BLACK 2 FOOT CYLINDER 0 4 TILTCYLINDER 0 WHITE 2 BACK CYLINDER BLACK WHITE 15 BASE CYLINDER CZO 406100 BLACK BLACK Figure 5 5 Wiring Diagram Used on Units with Serial Number KK1000 thru Present Midmark Corporation 1997 SF 1555 Rev 11 05 Page 5 5 Printedin U S A Return To Table Of Contents SECTION V SCHEMATICS AND DIAGRAMS 120 V A C 12 AMPS 60 HZ 2 WHITE y S ANTI CAVITATION ui SOLENOID VALVE 5 2 FOOT SWITCHES 6 ICAPACITORSTE M BLACK PANSAFETY MOTOR FOOT DOWN LIMIT SWITCH ERR d RED BLACK 4 3 x lt RED BLACK a FOOT U
28. Specifications Hardware Size Torque Values HO 11 to 21 inch 165 1 2 to 2 3 NeM 20 to 30 inch Ibs 2 2 to 3 3 NeM 32 to 42 inch Ibs 3 6 to 4 8 NeM 75 to 85 inch Ibs 8 5 to 9 6 18 to 22 foot Ibs 24 4 to 29 8 Sf 31 to 35 foot lbs 42 0 to 47 5 NeM RE 50 to 60 foot Ibs 67 8 to 81 4 NeM 1 5 SPECIFICATIONS Factual data for the 319 Power Examination Table is provided in Table 1 2 Also see Figure 1 2 Table 1 2 Specifications Description Data Weight Fixed Base Without Shipping Carton 390 Ib 176 8 kg With Shipping Carton 455 Ib 206 7 kg Midmark Corporation 1997 SF 1555 Page 1 4 Return To Table Of Contents Shipping Carton 58 in L x 31 in W x 42 in H 147 cm x 79 cm x 107 cm Dimensions See Figure 1 2 Table Top Length ses ones inen ort eege 70 in 177 8 cm Table Top Length headrest extended 80 in 203 2 cm Table Width EE 27 in 68 6 cm Overall Width 27 in 68 6 cm Table Positioning Adjustable Standard Base Table Top Height 26 in to 42 in 66 cm to 107 cm Weight Capacity E 325 Ib 147 3 Oil Used In Hydraulic System light grade medicinal mineral oil Hydraulic System Oil Capacity
29. configurations which are distinguished as follows Model 319 003 115 VAC w o siderails w o treatment pan Model 319 004 220 VAC w o siderails and w o treatment pan B Theory of Operation See Section IV Figures 5 1 thru 5 4 for wiring diagrams and electrical schemat ics and Figures 5 5 and 5 6 for hydraulic flow diagrams On domestic units 115 VAC is supplied directly to the circuitry of the table On export units 220 VAC is supplied to isolation transformer The isolation trans former then supplies 115 VAC to the circuitry of the table When no functions are selected 115 VAC is supplied to terminals 1 and 2 of all foot switches There is no path to neutral however so no current flows and nothing happens When the operator selects one of the four up functions BACK UP TABLE UP FOOT UP or TILT UP with the foot control three paths to neutral are created Current flows from terminal 2 to terminal 4 of switch and then across the motor pump winding T2 to neutral starting the motor pump pumping Current also flows from terminal 2 to terminal 4 of switch and then across the coil of the anti cavitation solenoid valve energizing the valve and causing it to open Current also flows from terminal 2 to terminal 3 of switch and then across the coil of the cylinder solenoid valve and the time delay relay energizing the valve and causing it to open The time delay relay delays current flow across the coil of the cylinder
30. drifts Replace cylinder if necessary Oil level Check oil level in motor pump Add oil to motor pump if necessary Refer to para 4 3 Stirrup Assemblies Check that stirrup assemblies lock into one of three positions Check for wear Replace components as necessary Refer to para 4 23 Headrest Assembly Check headrest for proper adjustment If headrest does not have enough holding power adjust headrest handles Refer to para 4 21 Pan safety limit switch Check that pan safety limit switch prevents foot function from moving when limit switch is not tripped Excessive sideways Check that table top does not have excessive side play Adjust chain assembly if necessary play of table top Hefer to para 4 19 Anti cavitation solenoid Check to see if back section may be lifted by hand or if the tilt function drifts by itself If so valve replace anti cavitation solenoid valve Refer to para 4 6 Upholstery Check all upholstery for rips tears or excessive wear Replace cushions as necessary Refer to para 4 25 Accessories Check that all accessories have all of their components and that they function properly necessary repair or replace the accessory Operational Test Perform an Operational Test to determine if the table is operating within its specifications Refer to para 2 1 Replace or adjust any malfunctioning components O Midmark Corporation 1997 SF 1555 Page 3 1 Printed in U S A Return To Table Of Contents SECTION
31. from back weldment 8 NOTE The upholstery may be difficult to raise up because there is a velcro strip holding the upholstered back down On a one piece seat amp back upholstery set raise upward on upholstered back section 7 until two studs 6 are free of back weldment 8 then swing upholstered back section 7 upward so that it rests against upholstered seat section 12 Upholstered Seat Section Removal 6 Lower FOOT DOWN function all the way down Page 4 30 Midmark Corporation 1997 SF 1555 Return To Table Of Contents 7 Unlock A two locking tabs 10 by pulling on locking tabs until locking tabs are free of studs 11 Raise upward on foot end of upholstered seat section 12 approximately 1 2 54 cm until two studs 11 are free of seat weldment 13 then slide upholstered seat section approxi mately 1 in 2 5 cm toward foot end of table until two studs 14 are in rounded part of locking slots D Lift upholstered seat section 12 straight up and remove from seat weld ment 13 Upholstered Leg Rest Removal 9 Raise FOOT UP function all the way up 10 Unlock A two locking tabs 15 by pulling on locking tabs until locking tabs are free of studs 16 11 Remove upholstered leg rest 17 from foot extension weldment 18 by pulling straight up Upholstered Foot Rest Removal 12 Squeeze release latches E and remove foot board assembly 19 from foot extens
32. from terminal 3 of foot switch to terminal block is broken or disconnected Wire running from terminal block to back cylinder solenoid valve is broken or disconnected Tilt cylinder solenoid valve is malfunctioning Orange wire running from terminal 3 of foot switch to terminal block is broken or disconnected Wire running from terminal block to tilt cylinder solenoid valve is broken or disconnected Foot cylinder solenoid valve is malfunctioning Red black wire running from terminal 3 of foot switch to terminal block is broken or disconnected Wires running from terminal block to pan safety limit switch and foot cylinder solenoid valve are broken or disconnected Treatment pan assembly is not pushed in all the way applies only to units with an optional treatment plan Page 2 6 Check to see if back cylinder solenoid valve energizes audible click when foot pedal is depressed Check continuity of wire and connections Check continuity of wire and connections Check to see if tilt cylinder solenoid valve energizes audible click when foot pedal is depressed Check continuity of wire and connections Check continuity of wire and connections Check to see if foot cylinder solenoid valve energizes audible click when foot pedal is depressed Check continuity of wire and connections Check continuity of wire and connections Check that the treatment pan assembly is pushed in all
33. is disconnected 3 Place drain pan A under up functions shuttle valve 1 Figure 4 3 4 Disconnect hose assembly 2 from elbow B of up functions shuttle valve 1 MA395000 CENCE OC SILO 5 Remove up functions shuttle valve 1 from motor pump 3 EQUIPMENT ALERT Hydraulic system is designed for use with B Installation light grade mineral oil only Failure to comply could result in hydraulic system failure 1 Coat two o rings C on up functions shuttle valve 1 with mineral oil or vaseline 7 Add oil to fill hole B until oil starts to run out of oil level check hole A 2 Install up functions shuttle valve 1 in motor pump 3 8 Install gasket 4 and screw 3 on motor pump 2 3 Connect hose assembly 2 to elbow B of up functions shuttle valve 1 9 Install filler cap 1 on motor pump 2 4 If necessary add oil to motor pump Refer to Move each function to its up and down limit para 4 3 several times Then repeat steps 1 thru 9 7 5 Install motor cover assembly Refer to Install motor cover assembly Refer to para 4 2 para 4 2 6 Plug table power cord into outlet 12 N Dispose of used oil in accordance with local regulations 7 Dispose of used oil in accordance with local regulations Midmark Corporation 1997 SF 1555 Rev 6 02 Page 4 2 Printed in U S A Return To Table Of Contents
34. limit switch in its circuit If the treatment pan assembly is not pushed into its fully stowed position the pan safety limit switch will not be tripped If the pan safety limit switch is not tripped current flow is inter rupted keeping the cylinder solenoid valve from energiz ing This safety feature prevents the table operator from accidentally colliding the foot section into the treatment pan assembly When the motor pump starts pumping suction is created by the rotating pump gears which allows oil to defeat the reservoir check valve and flow into the pump gears The pump gears pressurize the oil which flows to the down function shuttle valve The check ball and shuttle in the down function shuttle valve are pushed to the open position by the oil allowing oil to flow through the shuttle valve by flowing around the check ball with the shuttle in the open position oil is prevented from flowing through the reservoir ports and returning to the reservoir The oil then flows through the open anti cavitation solenoid valve and into the rod end of the cylinder causing the cylinder rod to retract When the cylinder rod retracts oil is forced out of the base of the cylinder through the open cylinder solenoid valve to the up function shuttle valve The check ball and the shuttle in the up function shuttle valve are pushed to the closed position by the oil which prevents oil from flowing through the shuttle valve and into the motor pump bu
35. lists the number of units of a particular component that is required for the subassembly The letters AR denote as required when quantities of a particular component cannot be determined such as adhesive Bullets in the Part No column and the Description column show the indenture level of a component If a component does not have a bullet it is a main compo nent of that illustration If a component has a bullet it is a subcomponent of the next component listed higher in the parts list than itself that does not have a bullet Likewise if a component has two bullets it is a sub component of the next component listed higher in the parts list than itself that has only one bullet 6 3 Torque Specifications and Important Assembly Notes When specific assembly torque specifications measure ments or procedures have been identified by our engineering department as required to assure proper function of the unit those torque specifications mea surements and procedures will be noted on the parts illustrations Adherence to these requirements is essential Printedin U S A Return To Table Of Contents Pictorial Index 3 4 5 6 7 8 9 0 1 zech l GO Midmark Corporation 1997 SF 1555 Rev 2 04 SECTIONVI PARTSLIST Styled Upholstery Shown MA374300 Used on units with Serial Number HH 1000 and HN 1000 thru Present Used on units with Serial Number V2200 thru Presen
36. motor pump Refer to para 4 3 19 Install motor cover assembly Refer to para 4 2 Printed in U S A Return To Table Of Contents SECTION IV MAINTENANCE SERVICE 4 14 Base Cylinder Removal Installation 5 Remove four screws 7 and brace 8 from base slide assembly 9 A Removal Plug table power cord into outlet 1 Unplug table power cord from outlet 7 If BASE DOWN function is operable place a 2 Remove motor cover assembly Refer to block A under middle slide of base slide para 4 2 assembly 9 Then lower the BASE DOWN function until the middle slide of the base slide 3 Remove four screws 1 Figure 4 16 and back assembly is resting on block and pressure is off outer shroud 2 from left and right hand outer clevis pin 10 If BASE DOWN function is not shrouds 3 operable move table top to a horizontal posi tion and place supports under each end of table 8 Remove two screws 1 Figure 4 17 and control cover 2 from control panel 3 MA396500 Figure 4 17 Base Cylinder Wires Disconnection Connection MA396400 Figure 4 16 Base Cylinder Access 9 Loosen two terminal screws A then tag and disconnect base cylinder wires 4 from termi 4 Remove eight screws 4 and back inner nal block 5 shroud 5 from left and right hand inner shrouds 6 10 Pull base cylinder wires 4 out thru wire hole B NOTE The
37. pan slide assem bly Tighten two screws 3 9 Install upholstered seat and back section Refer to steps 6 and 7 of para 4 25 Connect wire harness 1 to pan safety limit switch 2 Midmark Corporation 1997 SF 1555 Page 4 22 Printed in U S A Return To Table Of Contents SECTION IV MAINTENANCE SERVICE 4 19 Chain Assembly Adjustment 4 Remove eight screws 4 and front inner shroud 5 from left and right hand inner shrouds 6 A Adjustment b Loosen four screws 7 1 Raise TABLE UP function all the way up EQUIPMENT ALERT 2 Unplug table power cord from outlet A Adjust chains so they are tight yet have a slight spring back Also adjust 3 Remove four screws 1 Figure 4 27 and front chains so there is an equal amount of tension on outer shroud 2 from left and right hand outer each chain Failure to do so will result in chains shrouds 3 loosening earlier and uneven wear 6 Insert a pry bar or large screwdriver into adjustment gap A and pry downward on idler adjustment weldment 8 until chains 9 are tight but not drum tight Tighten four screws 7 7 Install front inner shroud 5 on left and right hand inner shrouds 6 and secure with eight screws 4 8 Install front outer shroud 2 on left and right hand outer shrouds 3 and secure with four screws 1 9 Plug table power cord into outlet 4 20 Base Slide Assembly Removal Installa
38. service instruc tions Refer to para 4 1 B Manual Use When Table Is Malfunctioning And Cause Is Unknown 1 Perform an operational test on table Refer to para2 1 2 Perform troubleshooting procedures listed in Troubleshooting Guide Refer to para 2 2 3 If a component is discovered to be faulty or out of adjustment replace or adjust component in accordance with maintenance service instruc tions Refer to para 4 1 C Manual Use When Damaged Component Is Known 1 Replace or adjust component in accordance with maintenance service instructions Refer to para 4 1 1 3 Description Of 319 Power Examination Table A General Description See Figure 1 1 The 319 Power Examination Table is an examination table designed specifically for performing general medical examinations and procedures Midmark Corporation 1997 SF 1555 Page 1 1 The major serviceable components of the table are the motor pump up functions relief valve 600 PSI down functions relief valve 400 PSI up functions shuttle valve down functions shuttle valve anti cavitation solenoid valve capacitors control panel with terminal block back cylinder foot cylinder tilt cylinder base cylinder base slide assembly chain assembly pan safety limit switch optional on some tables time delay relay foot switches and isolation transformer export units only The Model 319 Power Examination Table series is available in two different
39. solenoid valve for 1 10 of a second causing it to energize 1 10 of a second after Printedin U S A Return To Table Of Contents SECTION I GENERAL INFORMATION PAN SAFETY BACK LIMIT SWITCH CYLINDER _ TILT xN CYLINDER BASE CYLINDER ANTI CAVITATION FOOT CYLINDER SOLENOID VALVE MOTOR DOWN FUNCTION N SHUTTLE VALVE Wee Cape ED UP FUNCTION i SHUTTLE VALVE aN NEC LA CHAIN TERMINAL 3 Xf f ASSEMBLY BLOCK i SC BASE SLIDE TIME DELAY N ASSEMBLY RELAY DOWN FUNCTION RELIEF VALVE UP FUNCTION CAPACITORS RELIEF VALVE FOOT SWITCH FOOT CONTROL ISOLATION TRANSFORMER EXPORT UNITS ONLY MA398400 Figure 1 1 Major Components Page 1 2 PrintedinU S A Midmark Corporation 1997 SF 1555 Return To Table Of Contents the motor pump and anti cavitation solenoid valve have energized This allows the motor pump to run and oil pressure to build first so table top will not drift down ward slightly before starting to rise On tables that have an optional treatment pan assembly the foot function also has a pan safety limit switch in its circuit If the treatment pan assembly is not pushed into its fully stowed position the pan safety limit switch will not be tripped If the pan safety limit switch is not tripped current flow is interrupted keeping the cylinder solenoid valve from energizing This safety feature prevents the table oper
40. the way Replace back cylinder Refer to para 4 12 Clean any dirty connections Tighten any loose connections Replace any damaged connections Clean any dirty connections Tighten any loose connections Replace any damaged connections Replace tilt cylinder Refer to para 4 13 Clean any dirty connections Tighten any loose connections Replace any damaged connections Clean any dirty connections Tighten any loose connections Replace any damaged connections Replace foot cylinder Refer to para 4 15 Clean any dirty connections Tighten any loose connections Replace any damaged connections Clean any dirty connections Tighten any loose connections Replace any damaged connections Push treatment pan assembly in all the way Printed in U S A FOOT DOWN functions do not work All other functions work Continued Any of the four functions drift by themselves Back section of table top may be lifted by hand or tilt function may drift by itself Table moves fine for light patient but will not move or moves slowly for very heavy patient Excessive sideways play of table top Return To Table Of Contents TESTING AND TROUBLESHOOTING Table 2 1 Troubleshooting Guide Continued Motor pump runs when FOOT UP or FOOT DOWN foot pedal is depressed but foot section does not move Continued applies only to units with an optional treatment pan Table functi
41. time delay relay If table top moves now time delay relay is malfunctioning Put a multimeter in line w time delay relay and run each cylinder one at a time Replace suspect capacitor s with known working capacitor s Replace suspect motor pump with known working motor pump Check for slight magnetism on bottom side of anti cavitation solenoid valve indicating solenoid is not burned out or replace suspect anti cavitation solenoid valve with known working anti cavitation solenoid valve Check all wiring connections from terminal block to anti cavitation solenoid valve Use multimeter to check for proper voltage levels Check to see if check ball is loose in up function shuttle valve or adjacent elbow check ball should be held in shuttle valve by metal ring Replace suspect motor pump with known working motor pump Replace suspect motor pump with known working motor pump Check all wiring connections in foot control SECTION H A multimeter reading gt 1 2 amps indicates a faulty cylinder has caused relay to fail Replace cylinder and the time delay relay If reading is lt 1 2 amps replace time delay relay only Refer to para 4 16 Replace capacitor s Refer to para 4 17 Replace motor pump Refer to para 4 9 or 4 10 Replace anti cavitation solenoid valve Refer to para 4 6 Clean any dirty connections Tighten any loose connections Replace any damaged connections
42. to table is tripped Fuse s in AC connector receptacle is blown export units only Wire connections loose Isolation transformer is malfunctioning export units only Capacitor s is blown motor pump may be humming Motor thermal overload switch is activated because motor pump overheated Motor pump is burned out Wire connections loose Hydraulic system is low on mineral oil Page 2 2 Check to see if power cord is plugged in Check to see if facility circuit breaker is tripped Perform continuity check on fuses Check all wiring connections from power cord to terminal block and from foot control to terminal block Check input and output voltage of isolation transformer or replace suspect isolation transformer with known working transformer Replace suspect capacitor s with known working capacitor s Wait 15 to 20 minutes Replace suspect motor pump Check all wiring connections from terminal block to motor pump Check oil level in reservoir Plug power cord into facility wall outlet and or connector receptacle on table If circuit breaker is tripped correct the problem then reset circuit breaker Replace fuse s Clean dirty connections Repair loose damaged connections If isolation transformer is receiving proper input voltage but is not supplying 115 VAC output replace isolation transformer Replace capacitor s Refer to para 4 18 Allow
43. 0 me Zeck BLACK WHITE 2 BASE CYLINDER 0 5 MA437800 Figure 5 1 Wiring Diagram Used on Units with Serial Number HH1000 thru Present BLACK Midmark Corporation 1997 SF 1555 Page 5 1 Printed in U S A SECTION V Return To Table Of Contents SCHEMATICS AND DIAGRAMS 120 V A C 12 AMPS 60 HZ GREEN YELLOW BLACK Figure 5 2 Electrical Schematic Used on Units with Serial Number HH1000 thru Present Midmark Corporation 1997 SF 1555 Page 5 2 WHITE ANTI CAVITATION SOLENOID VALVE o T2 FOOT SWITCHES CAPACITORS M BLACK MOTOR FOOT DOWN Gage I O I t RED BLACK i a FOOT UP i FOOT BLUE CYLINDER SOLENOID VALVE TILT CYLINDER E SOLENOID VALVE TIME DELAY RELAY CYLINDER SOLENOID VALVE BASE CYLINDER SOLENOID VALVE TABLE UP BLUE d 437900 Printed in U S A Return To Table Of Contents SECTION V SCHEMATICS AND DIAGRAMS WHITE BLACK WHITE BLACK ANTI CAVITATION CAPACITORS SOLENOID VALVE 124 149 MFD 250 VAC 45 BLACK TIME IT HELAY CONNECTION TO PRIMARY OF TRANSFORMER DEPENDS ON TABLE DESTINATION TERMINAL BLOCK x 1 ISOLATION TRANSFORMER FOOTSWITCH ASSEMBLY NOTE IF AN UP FOOT SWITCH amp DOWN FOOT SWITCH ARE ENERGIZED AT THE SAME TIME THE CIRCUIT BECOMES INOPERATIVE FOOT DOWN es
44. 0 40 e 053 0582 01 e 042 0137 00 e 040 0010 104 e 028 0392 e 042 0120 00 e 050 3102 40 Description Upholstery Set Styled Includes Headboard Pillow Mount e Upholstery Latch Stud e Back Section Styled Specify Color 1 e Upholstery Mount Stud Seat Cover Part No e 040 0006 00 e 028 0393 e 016 0022 00 e 002 0146 00 e 028 0287 e 057 0379 00 e 028 0394 e 050 2483 XX 040 0010 13 Description Paper Tear Strip Set SECTION VI PARTSLIST MA246600 Legrest Styled Specify Color e Spacer Footrest Styled Specify Color e Panel Insert See XX beside Panel Color Click on the Color Selector link above to see available colors Always Specify Model amp Serial Number Midmark Corporation 1997 SF 1555 Rev 4 08 Page 6 8 Printedin U S A Return To Table Of Contents SECTIONVI PARTSLIST 09 9 This upholstery is no longer available Authorized upholstery substitution on O mi units with this type of upholstery is OO2 O560 XXX found on previous page 6 8 MA403500 Item PartNo Description The following are the current colors for 002 0557 Upholstery Set Thermo Includes upholstery panel kits Items 1 thru 18 Specify Color 028 0458 Headrest Specify Color Part No Upholstery Color 058 0001 03 Clip e 040 0006 27 103 Slate Grey 040 0010 13 Screw
45. 0010 04 061 0071 00 045 0001 31 041 0010 02 015 0412 02 040 0010 28 015 0437 07 015 0413 01 050 0957 00 015 0008 00 053 0068 10 025 0025 00 030 0810 40 040 0010 12 053 0068 00 015 0118 00 045 0001 71 041 0250 01 015 0014 00 040 0004 00 050 6064 40 Always Specify Model amp Serial Number Page 6 20 1 Description Eartyh Symbol Label Lockwasher Capacitor Mounting Bracket Capacitor Capacitor Cap Strain Relief Bracket Strain Relief Bushing Snap Bushing Spring Transformer Bracket Weldment Snap Bushing Isolation Transformer Wire Clip Wire Assembly Refer to Wiring Diagram Section 5 Cord Bracket Adapter Printedin U S A Return To Table Of Contents SECTION VI Motor Pump Components DAHIHUIET MA531100 Part No Description Part No Description 002 0444 00 Motor Pump Assembly Includes e 002 0038 00 Anticavitation Solenoid Valve Items 2 thru 13 e 014 0096 00 014 0169 00 MotorShaftSeal Not Shown 014 0020 00 MineralOil 014 0262 02 Reservoir O Ring Seal Not Shown 1 e 014 0007 00 PipeSealant e 014 0248 00 Relief Valve Low Pressure 061 0135 00 Motor Caution Label e 014 0249 00 Relief Valve High Pressure 015 0018 03 Spring Spade Terminal e 014 0262 01 050 2662 40 Motor Base e 014 0168 00 040 0500 02 e 014 0260 00 045 0001 33 Lockwasher e 014 0045 00 016 0360 00 Trim Lock Specify Length 2 2 3 4 5 6 7 8 9 Midmark Corporatio
46. 010 1 1 PopRivet 015 0001 00 Wire Clip 016 0140 00 Trim Lock Specify Length 1 1 2 042 0045 01 053 0068 06 Snap Bushing 050 391 1 40 Filler Hut 030 1042 40 Seat Weldment 040 0375 00 053 0050 00 040 0010 47 016 0162 00 Trim Lock Specify Length 11 016 0542 00 Slide Latch Assembly Always Specify Model amp Serial Number NO 3 4 5 6 Z 8 9 Midmark Corporation 1997 SF 1555 Rev 1 01 Page 6 12 Printed in U S A Return To Table Of Contents SECTIONVI Seat Components m PARTSLIST MA374600 Item PartNo Description Qty Item PartNo Description 1 Stirrup Assembly Includes Items 18 amp 015 0014 00 Wire Clip 19 Refer to Breakdown Elsewhere 040 0010 04 Upholstered Seat Section Refer to 015 0082 01 Ground Braid Uphholstery Set Elsewhere 040 0001 31 Lockwasher 016 0140 00 Trim Lock Specify Length 2 040 0010 23 042 0010 1 1 Pop Rivet 015 0001 00 Wire Clip 016 0140 00 Trim Lock Specify Length 1 1 2 042 0045 01 053 0068 06 Snap Bushing 050 391 1 40 Filler Hut 030 1288 40 Seat Weldment 040 0375 00 053 0050 00 040 0010 47 016 0162 00 Trim Lock Specify Length 11 016 0542 00 Slide Latch Assembly Always Specify Model amp Serial Number NO 3 4 5 6 7 8 9 Midmark Corporation 1997 SF 1555 Rev 1 02 Page 6 12 1 Printedin U S A Seat Item PartNo 1 NO 3 4 5 6 7 8 9 016 0140 00 042 0010 11 016 0140 00 053 0068 06 030 1331 40 053 0050 00 016 016
47. 0715 01 Headboard Pivot Mount 040 0250 26 Set Screw Apply Loctite Loctite 042 0024 00 057 0375 00 Headboard Pivot Pin 040 0250 79 016 0542 01 Slide Latch 029 1100 07 Two Arm Headlock Assembly Includes Items 8 thru 22 N S P DowelPin N S P e Pivot Bar N S P Draw Bar N S P Head Pivot Handle Weldment N S P Dowel Pin N S P e Jam Nut N S P Set Screw N S P Screw N S P e Screw N S P Headlock Base N S P Pivot Bar N S P Draw Bar N S P e N S P Set Screw N S P Headlock Head N S P Denotes Non Servicable Part Always Specify Model amp Serial Number Midmark Corporation 1997 SF 1555 Rev 10 07 Page 6 11 Printedin U S A10 Return To Table Of Contents Headrest Assemk Part No Description Qty Upholstered Headrest Specify Color Refer to Upholstery Set Elsewhere 1 002 0715 01 Headboard Pivot Mount 040 0008 35 Screw Apply Loctite Loctite 042 0024 00 057 0528 00 Headboard Pivot Pin 040 0250 79 016 0542 01 Slide Latch 029 1100 07 Two Arm Headlock Assembly Includes Items 8 thru 22 N S P e N S P Set Screw e N S P Headlock Head N S P Denotes Non Servicable Part Always Specify Model amp Serial Number Midmark Corporation 1997 SF 1555 Rev 10 07 Page 6 11 1 SECTIONVI PARTSLIST Description e Dowel Pin e Pivot Bar e Draw Bar Head Pivot Handle Weldme
48. 1555 Rev 11 04 Item PartNo 061 0528 00 040 0010 04 061 0071 00 045 0001 31 041 0010 02 015 0412 02 040 0010 28 015 0437 07 015 0413 01 050 0957 00 015 0008 00 053 0068 10 025 0025 00 030 0810 40 040 0010 12 053 0068 00 015 0118 00 045 0001 71 041 0250 01 015 0014 00 Description Fuse Rating Tag Eartyh SymbolLabel Lockwasher Capacitor Mounting Bracket Capacitor Capacitor Cap Strain Relief Bracket Strain Relief Bushing Snap Bushing Spring Transformer Bracket Weldment Snap Bushing Isolation Transformer Wire Clip Wire Assembly Refer to Wiring Diagram Elsewhere Section 5 Printedin U S A SECTIONVI Base Electrical Components PARTSLIST Export Jod Ice M N S MA226001i Used on units with Serial Number V50302 thru Present Item PartNo 1 WP Midmark Corporation 1997 SF 1555 Rev 6 04 041 0250 13 053 0051 00 050 1533 20 040 0010 34 050 1532 20 053 0068 09 002 0041 00 045 0001 21 040 0006 00 041 0006 01 015 0009 01 015 0022 01 040 0006 33 053 0068 06 040 0010 47 050 2489 40 015 1248 00 015 1249 00 015 0346 20 053 0071 00 061 0528 00 Description Qty Motor Pump Assembly Refer to Breakdown Elsewhere Motor Mount Control Cover Control Panel Snap Bushing Time Delay Relay Snap Bushing Receptacle Bracket Appliance Inlet Fuse Drawer Fuses not included Fuse Rating Tag Item PartNo 040
49. 2 00 Description Return To Table Of Contents nts Qty Item Stirrup Assembly Includes Items 18 amp 19 Refer to Breakdown Elsewhere Upholstered Seat Section Refer to Uphholstery Set Elsewhere Trim Lock Specify Length 2 Pop Rivet Trim Lock Specify Length 1 1 2 Snap Bushing Seat Weldment Trim Lock Specify Length 11 Always Specify Model amp Serial Number Midmark Corporation 1997 SF 1555 Page 6 12 2 Part No 015 0014 00 040 0010 04 015 0082 01 040 0001 31 040 0010 23 015 0001 00 042 0045 01 050 3911 40 040 0375 00 040 0010 47 016 0542 00 SECTIONVI PARTSLIST MA374600 Description Wire Clip Ground Braid Lockwasher Wire Clip Filler Hut Slide Latch Assembly Printed in U S A Return To Table Of Contents Seat Components SECTIONVI PARTSLIST MA437500 Part No Description Qty Part No Description 015 0001 00 Wire Clip 015 0014 00 Wire Clip 016 0162 00 Trim Lock Specify Length 11 053 0050 00 030 1042 40 053 0068 06 050 1127 40 045 0001 15 045 0001 04 1 Stirrup Assembly Includes Items 8 amp 9 Referto Stirrup Assembly Elsewhere 2 Treatment Pan Pan Slide Assembly Upholstered Seat Section Refer to Uphholstery Set Elsewhere 042 0010 1 1 Pop Rivet 016 0542 00 Slide Latch Assembly 016 0140 00 Trim Lock Specify Length 1 1 2 016 0373 00 029 1276 01 Seat Weldment Snap
50. Apply Loctite 042 0024 02 3 Wee E Sand Grey 053 0582 01 HeadboardPillow Mount oe 096 Iris Blue 042 0137 00 Upholstery Latch Stud e 100 Nile Green e 040 0010 104 Screw eer ee 101 Royal Lavander 053 0105 26 Velcro Tape TI Terra Rosa 042 0120 00 Upholstery Mount Stud Apply Loctite 042 0024 02 Part No Panel Color 050 3102 40 Seat Cover 040 0006 00 eScrew xs onm n 014 Slate Grey XX 02 028 0471 Back Seat Section Specify Color TO Sand Grey XX 06 e 016 0022 00 xs onem am O33 Nile Green XX 08 002 0146 00 Paper Tear Strip Set UT 034 RoyalLavander XX 09 028 0461 Legrest Styled Specify Color 038 Terra Rosa XX 10 057 0379 00 Spacer 036 Iris Blue 07 e 028 0457 A eFootrest Styled Specify Color e 050 2483 Panel Insert See XX beside Panel Color Always Specify Model amp Serial Number Midmark Corporation 1997 SF1555 Rev 5 05 Page 6 9 Printedin U S A WP Return To Table Of Contents Hydraulic System NOTE Cut cable ties as necessary to remove cylinders or replace hoses Before disassembly take special notice of hose positioning and the cable tie locations securing hoses Also note the length and radius of all hose return loops Duplicating these hose positions cable tie locations and loop sizes when re installing hoses and or cylinders will en
51. CYLINDER CYLINDER CYLINDER ROD ROD ROD ROD BACK CYLINDER SOLENOID VALVE CLOSED BASE CYLINDER SOLENOID CYLINDER SOLENOID VALVE CLOSED CYLINDER SOLENOID VALVE CLOSED UP FUNCTIONS SHUTTLE VALVE OPEN DOWN FUNCTIONS SHUTTLE VALVE CLOSED ANTI CAVITATION SOLENOID VALVE OPEN RESERVOIR PORT CLOSED RESERVOIR RESERVOIR CHECKVALVE CHECK VALVE OPEN CLOSED sucTioN PRESSURE Down FUNCTIONS FILTER up FUNCTIONS RESERVOIR RELIEF VALVE RELIEF VALVE E RETURN CLOSED CLOSED MA225300 Figure 5 9 Up Functions Hydraulic Flow Diagram O Midmark Corporation 1997 SF 1555 Page 5 9 Printed in U S A Return To Table Of Contents SECTION V SCHEMATICS AND DIAGRAMS DOWN FUNCTIONS HYDRAULIC OIL FLOW CYLINDER CYLINDER CYLINDER CYLINDER ROD ROD ROD ROD BASE CYLINDER CYLINDER CYLINDER CYLINDER SOLENOID SOLENOID SOLENOID SOLENOID VALVE VALVE VALVE VALVE OPEN CLOSED CLOSED CLOSED DOWN FUNCTIONS UP FUNCTIONS SHUTTLE VALVE SHUTTLE VALVE OPEN CLOSED l CHECK CHECK EZ BALL fr ANTI CAVITATION SOLENOID VALVE OPEN RESERVOIR RESERVOIR PORT PORT CLOSED OPEN RESERVOIR RESERVOIR CHECK VALVE 7 S CHECK VALVE CLOSED OPEN sucrioN PRESSURE pown FUNCTIONS FILTER up FUNCTIONS RESERVOIR RELIEF VALVE RELIEF VALVE RETURN CLOSED CLOSED Figure 5 10 Down
52. DOWN foot pedal is depressed but table top does not move Midmark Corporation 1997 SF 1555 TILT UP or TILT DOWN foot switch is malfunctioning Wire connection to foot switch is loose TILT UP or TILT DOWN foot switch is malfunctioning FOOT UP or FOOT DOWN foot switch is malfunctioning Wire connection to foot switch is loose FOOT UP or FOOT DOWN foot switch is malfunctioning Base cylinder solenoid valve is malfunctioning White wire running from terminal 3 of foot switch to terminal block is broken or disconnected Wire running from terminal block to base cylinder solenoid valve is broken or disconnected Page 2 5 Perform a continuity check on suspect foot switch in ON and OFF positions or replace suspect foot switch with known working foot switch Check all wiring connections on suspect foot switch Perform a continuity check on suspect foot switch in ON and OFF positions or replace suspect foot switch with known working foot switch Perform a continuity check on suspect foot switch in ON and OFF positions or replace suspect foot switch with known working foot switch Check all wiring connections on suspect foot switch Perform a continuity check on suspect foot switch in ON and OFF positions or replace suspect foot switch with known working foot switch Check to see if base cylinder solenoid valve energizes audible click when foot pedal is depressed Check continui
53. ECTIONVI PARTSLIST Midmark Corporation 1997 SF 1555 Rev 4 08 Part No 002 0559 e 053 0628 01 e 040 0006 20 e 058 0001 03 e 040 0006 00 e 040 0010 78 e 053 0582 01 e 042 0137 00 e 040 0010 104 e 042 0120 00 Description Upholstery Set Narrow Width Incl Items 1 thru 20 Specific Color Headrest Cover Bag Clip Screw Apply Loctite 042 0024 00 Headboard Pillow Mount e Upholstery Latch Stud e Upholstery Mount Stud Apply Loctite 042 0024 00 Qty Item PartNo 10 e 050 3103 40 e 050 3103 41 e 040 0006 00 e 057 0379 00 e 028 0389 e 028 0123 e 029 001 7 02 e 016 0022 00 e 028 0391 e 028 0390 e 028 0395 e 050 2483 XX MA246800 Description Seat Cover Shown Seat Cover L H 1 Screw e Spacer e Footrest Specify Color e Legrest Specify Color Paper Tear Strip Set 24 Seat Section Narrow Specify Color 1 e Back Section Narrow Specify Color 1 Headrest Specify Color e Panel Insert See XX beside Panel Color Click on the Color Selector link above to see available colors Always Specify Model amp Serial Number Page 6 7 Printedin U S A Return To Table Of Contents Upholstery Set 1 2 3 4 5 6 7 8 9 0 Part No 002 0560 e 028 0406 e 058 0001 03 e 040 0006 52 e 050 269
54. Of Contents SECTION IV MAINTENANCE SERVICE B Installation 1 If removed install stirrup index spring 8 on stirrup guide bracket 6 2 Install stirrup guide bracket 6 in stirrup mount weldment 7 and secure with pivot boss 5 3 Slide stirrup assembly 4 thru slot in pivot boss 5 and thru slot B in stirrup guide bracket 6 4 Install screw 3 on stirrup assembly 4 5 Install hole plug 1 in access hole of seat weldment 2 4 24 Typical Foot Switch Removal Installation A Removal WARNING A The foot control contains high voltage 115 VAC when the table power cord is plugged in Unplug table power cord before disassembling foot control to prevent electrical shock Failure to do so could result in serious personal injury or death MA398100 Figure 4 33 Typical Foot Switch Removal Installation 1 Unplug table power cord from outlet 2 Connect four wires 7 to terminals of foot 2 Remove two screws 1 Figure 4 33 and switch 8 partially separate foot switch bracket 2 from foot control casting 3 3 Ensure springs A and spacers C are in position and have not fallen off 3 Remove screw 4 spacer 5 and pedal 6 from foot switch bracket 2 4 Install pedal 6 on foot switch bracket 2 and secure with spacer 5 and screw 4 making 4 Tag and disconnect four wires 7 from termi sure pedal is mounted on pivot spacer B nals of foot
55. P FOOT CYLINDER SOLENOID VALVE TILT w CYLINDER SOLENOID s VALVE TIME 8 i RELAY lt Ger et 1 m I BACK CYLINDER SOLENOID VALVE BASE CYLINDER SOLENOID VALVE TABLE UP BLUE MA406200 Figure 5 6 Electrical Schematic Used on Units with Serial Number KK1000 thru Present O Midmark Corporation 1997 SF 1555 Page 5 6 Printed in U S A Return To Table Of Contents SECTION V SCHEMATICS AND DIAGRAMS WHITE BLACK WHITE BLACK WHITE BLACK ANTI CAVITATION CAPACITORS SOLENOID VALVE 124 149 MFD 250 VAC AS BLACK TIME IT RELAY en ch CONNECTION TO PRIMARY OF TRANSFORMER DEPENDS ON TABLE DESTINATION TERMINAL BLOCK d d H H H H H ISOLATION TRANSFORMER PAN SAFETY LIMIT SWITCH OPTIONAL ON SOME UNITS Wire harness 015 0470 00 FOOTSWITCH ASSEMBLY NOTE IF AN UP FOOT SWITCH amp DOWN FOOT SWITCH ARE ENERGIZED AT THE SAME TIME THE CIRCUIT BECOMES INOPERATIVE FOOT DOWN EA pe IEEE TABLE ME BLACK BROWN Ll x GREEN YELLOW de BLUE GREEN GROUND 220 V A C 4 AMPS Ee 50 HZ B5 X 20 MM 6 3 AMP SLO BLO FUSES PY tase up EI 015 0346 01 1 YELLOW MOTOR BLACK PUMP frs een LL E BLACK me FO INTERNAL VIEW OF FOOT SWITCHES BLACK me FO 3 4 3 4 BLACK
56. Remove four nuts 10 from four motor mounts 1 1 Disconnect hose assembly 12 from male elbow 13 Place a drain pan under elbow 14 Disconnect hose assembly 15 from elbow 14 Allow oil to drain into drain pan Hemove motor pump assembly 16 from four motor mounts 11 B Installation Midmark Corporation 1997 SF 1555 Install motor pump assembly 16 on four motor mounts 11 and secure with four nuts 10 Connect hose assembly 15 to elbow 14 Connect hose assembly 12 to male el bow 13 Feed two anti cavitation solenoid valve wires 9 thru wire hole Connect two anti cavitation solenoid valve wires 9 to terminal block 8 and secure by tightening two terminal screws Feed three motor pump wires 7 thru wire hole Connect three motor pump wires 7 to terminal block 8 and secure by tightening three terminal screws 12 13 4 10 Return To Table Of Contents Install control cover 5 on control panel 6 and secure with two screws 4 Install back outer shroud 2 on left and right hand outer shrouds 3 and secure with four screws 1 Add oil to motor pump Refer to para 4 3 Install motor cover assembly Refer to para 4 2 Plug table power cord into outlet Dispose of used oil in accordance with local regulations Motor Pump Removal Installation A Removal 1 2 3 6 Unplug table power cord from outlet Remove motor pump assembl
57. Replace up function shuttle valve Refer to para 4 4 Replace motor pump Refer to para 4 9 or 4 10 Replace motor pump Refer to para 4 9 or 4 10 Clean any dirty connections Tighten any loose connections Replace any damaged connections Printedin U S A SECTION II TESTING AND TROUBLESHOOTING Return To Table Of Contents Table 2 1 Troubleshooting Guide Continued The TABLE DOWN BACK DOWN TILT DOWN and FOOT DOWN functions do not work but TABLE UP BACK UP TILT UP and FOOT UP functions do Motor pump runs when a down function foot pedal is depressed but table top does not move Motor pump does not run when a down function foot pedal is depressed but runs when an up function is pressed TABLE UP function works but TABLE DOWN function does not or TABLE DOWN function works but TABLE UP function does not All other functions work Motor pump does not run and base cylinder solenoid valve does not energize Motor pump runs but base cylinder solenoid valve does not energize or vice versa BACK UP function works but BACK DOWN function does not or BACK DOWN function works but BACK UP function does not All other functions work Motor pump does not run and back cylinder solenoid valve does not energize Motor pump runs but back cylinder solenoid valve does not energize or vice versa Midmark Corporation 1997 SF 1555 Down function shuttle valve is malfunctioning Mot
58. TROUBLESHOOTING SECTION II TESTING ANDTROUBLESHOOTING 2 1 Operational Test See Figure 2 1 In order to effectively diagnose the malfunction of the table it may be necessary to perform an operational test as follows WARNING Refer to the Operator Manual for complete instructions on operating the table Failure to do so could result in personal injury NOTE The Operational Test for the most part only de scribes what should happen when the table is operated If the table does something other than described a problem has been discovered Refer to the Troubleshooting Guide to determine the cause of the problem and its correction 1 Plug the table into a grounded non isolated correctly polarized outlet that has the proper voltage output for the table See Figure 2 1 Depress TABLE UP TABLE DOWN BACK UP BACK DOWN TILT UP TILT DOWN FOOT UP and FOOT DOWN pedals on foot control N 3 Observe The table top should move in the direction corresponding to the pedal which is being depressed Movement should be steady and should not be too slow or too fast NOTE oteps 4 thru 7 apply only to units which have a pan slide assembly treatment pan it is an option on some units 4 Lower FOOT DOWN function all the way Pull the pan slide assembly outward until pan safety limit switch is no longer tripped Depress either FOOT UP or FOOT DOWN pedal on foot control b Observe The foot section of table top s
59. UIPMENT ALERT 8 Dispose of used oil in accordance with local A Make sure relief valve 7 has L2 regulations stamped on its hex head B it must not be stamped 600 Failure to install proper relief 4 9 Motor Pump Assembly Complete valve will result in faulty table performance Removal Installation 2 Install down functions relief valve 7 in motor A Removal pump 8 1 Unplug table power cord from outlet 3 If removed install back inner shroud 5 on left and right inner shrouds 6 and secure with 2 Remove motor cover assembly Refer to eight screws 4 para 4 2 4 Install back outer shroud 2 on left and right 3 Remove four screws 1 Figure 4 8 and back hand outer shrouds 3 and secure with four outer shroud 2 from left and right hand outer screws 1 shrouds 3 MA395600 Figure 4 8 Motor Pump Assembly Complete Removal Installation Midmark Corporation 1997 SF 1555 Page 4 7 Printed in U S A SECTION IV MAINTENANCE SERVICE 4 11 12 bd 13 Remove two screws 4 and control cover 5 from control panel 6 Loosen three terminal screws then tag and disconnect three motor pump wires 7 from terminal block 8 Pull motor pump wires 7 out thru wire hole Loosen two terminal screws then tag and disconnect anti cavitation solenoid valve wires 9 from terminal block 8 Pull anti cavitation solenoid valve wires 9 out thru wire hole
60. act with top of middle slide perform steps 13 thru 15 If gap is correct when the BASE 15 Repeat steps 11 thru 15 until there is a 1 16 to DOWN function is completely lowered go to 1 8 inch 1 6 to 3 2 mm gap A between inner step 16 member weldment B and middle slide C of base slide assembly when the BASE DOWN function is completely lowered 16 Install brace 8 Figure 4 16 on base slide assembly 9 and secure with four screws 7 17 Install any cable ties B removed during removal 18 Install back inner shroud 5 on left and right hand inner shrouds 6 and secure with eight screws 4 19 Install back outer shroud 2 on left and right hand outer shrouds 3 and secure with four screws 1 20 If necessary add oil to motor pump Refer to para 4 3 21 Install motor cover assembly Refer to para 4 2 4 15 Foot Cylinder Removal Installation A Removal 1 If possible raise FOOT UP function all the way up 2 Unplug table power cord from outlet 3 Remove motor cover assembly Refer to para 4 2 MA396700 4 Remove two screws 1 Figure 4 20 and control cover 2 from control panel 3 EQUIPMENT ALERT A The cylinder rod E must be partially ex 5 Loosen two terminal screws A then tag and tended before performi
61. ator from accidentally colliding the foot section into the treatment pan assembly When the motor pump starts pumping suction is created by the rotating pump gears which allows oil to defeat the reservoir check valve and flow into the pump gears The pump gears pressurize the oil which flows to the up function shuttle valve The check ball and shuttle in the up function shuttle valve are pushed to the open position by the oil allowing oil to flow through the shuttle valve by flowing around the check ball with the shuttle in the open position oil is prevented from flowing through the reservoir ports and returning to the reser voir The oil then flows through the open cylinder solenoid valve at the base of the selected cylinder extending the cylinder rod When the cylinder rod extends oil is forced out of the rod end of the cylinder through the open anti cavitation solenoid valve and to the down function shuttle valve The check ball and the shuttle in the down function shuttle valve are pushed to the closed position by the oil which prevents oil from flowing through the shuttle valve and into the motor pump but allows the oil to flow through the newly uncovered reservoir ports into the reservoir When the cylinder rod reaches the end of its travel the up function relief valve opens when the pressure reaches 525 600 PSI 36 2 41 4 BARS and allows the oil to return to the reservoir This prevents the motor pump from developing too h
62. back cylinder 6 with two cable ties 5 Route back cylinder wires 4 Figure 4 12 thru table 6 Feed back cylinder wires 4 thru wire hole B 7 Connect two back cylinder wires 4 to terminal block 5 and secure by tightening two terminal screws A 8 Install control cover 2 on control panel 3 and secure with two screws 1 9 Secure wires and hoses to base weldment 9 Figure 4 11 with wire clip 8 and screw 7 Install any cable ties removed during removal 10 Install front inner shroud 5 on left and right hand outer shrouds 6 and secure with eight screws 4 11 Install front outer shroud 2 on left and right hand inner shrouds 3 and secure with four screws 1 12 Install upholstered seat section Refer to step 6 of para 4 25 13 Plug table power cord into outlet 14 Lower BACK DOWN function all the way down EQUIPMENT ALERT Tilt down function must be completely lowered for following step Failure to do so will result in incorrect adjustment 15 If back section is not level with floor when the BACK DOWN function is completely lowered perform steps 16 thru 18 If back section is level when the BACK DOWN function is completely lowered go to step 19 EQUIPMENT ALERT The cylinder rod must be partially ex tended before performing step 17 If the cylinder rod is fully extended or retracted when step 17 is being performed damage to seals will occurr 16
63. ch Assembly 040 0250 88 Two Arm Headlock Assembly Refer to 045 0001 31 Lockwasher Headrest Assembly Elsewhere 015 0082 02 Grounding Braid 061 0117 00 Standards Label 1 2 3 4 5 6 7 8 040 0010 04 040 0250 39 045 0001 05 042 0001 02 040 0375 15 Lockwasher Roll Pin Screw Plug Midmark Corporation 1997 SF 1555 Rev 1 02 050 0872 40 040 0006 06 045 0001 29 040 0312 08 050 4924 40 Always Specify Model amp Serial Number Back Cover Washer Flat Support Plate Printed in U S A SECTIONVI PARTSLIST MA437600 Used on units with Serial Number KK 6666 and KL 1017 thru Present Used on units with Serial Number V2200 thru Present Part No Description Part No Description 050 04 72 40 Paper Cover 051 0112 00 Plated Side Rail 045 0001 12 Curved Washer 057 0057 42 Side Rail Mount 042 0010 03 Pop Rivet Serial Number Label 030 1332 40 Back Weldment 042 0007 00 042 0010 1 1 Pop Rivet 042 0006 01 Clevis Pin 002 0146 00 Paper Tear Strip Set 24 Back Cylinder Refer to Hydraulic 016 0022 00 System Elsewhere Upholstered Back Section Refer to 042 0006 02 Clevis Pin Upholstery Set Elsewhere 016 0542 00 Slide Latch Assembly 040 0250 88 Two Arm Headlock Assembly Refer to 045 0001 31 Lockwasher Headrest Assembly Elsewhere 015 0082 02 Grounding Braid 061 0117 00 Standards Label 1 2 3 4 5 6 7 8 040 0010 04 040 0250 39 045 0001 05 042 0001 02 040 0375 15 Lockwas
64. d on units with Serial Numbers HH1000 HN1000 KK1000 and KL1000 thru HH1499 HN1082 KK7800 and KL1018 Part No Description Item Part No Description 029 1394 02 R H Stirrup Assembly Shown e 030 0736 40 R H Stirrup MountWeldment Includes Items 1 thru 11 Shown 029 1394 03 L H Stirrup Assembly Not Shown 030 0737 40 et H Stirrup Mount Weldment Includes Items 1 thru 11 Not Shown 029 1397 03 Stirrup Assembly Includes e 050 5027 00 Stirrup Guide Bracket Items 2 thru 4 e 040 0010 47 se 020 0181 30 ee Coated Stirrup 016 0400 00 Stirrup Index Spring e e Q20 0182 30 ee PivotBlock e 040 0375 00 e e 42 0001 00 ee Roll bm 053 0050 05 Hole Plug 1 Used on R H Stirrup e e 040 0250 15 ee SetScrew Mount Weldment 2 Used on R H 51 0668 00 ee Horizontal Stirrup Bar Black Stirrup Mount Weldment e 053 0387 00 Pivot Boss 14 061 0279 00 Stirrup Instruction Label Used on L H Stirrup Mount Weldments Only Always Specify Model amp Serial Number Midmark Corporation 1997 SF 1555 Rev 1 06 Page 6 14 Printedin U S A Return To Table Of Contents Stirrup Assembly Ce 27 P A e Me MA613200i Item Part No Description Description 029 1394 02 R H Stirrup Assembly Shown e 030 0737 40 L H Stirrup Mount Weldment Includes Items 1 thru 11 Not Shown 029 1394 03 L H Stirrup Assembly Not Shown e 050 5027 00 Stirrup Guide Bracket
65. d seat and back section Refer to steps 4 thru 8 of para 4 25 5 Disconnect wire harness 1 Figure 4 26 from pan safety limit switch 2 6 Remove two screws 3 lockwashers 4 washers 5 and pan safety limit switch 2 bracket 6 as an assembly from seat weld ment 7 7 Remove two nuts 8 lockwashers 9 screws 10 and pan safety limit switch 2 from bracket 6 Printed in U S A SECTION IV Return To Table Of Contents MAINTENANCE SERVICE B Installation 1 Install pan safety limit switch 2 Figure 4 26 MA397300 Figure 4 25 Jumper Wire Connection Disconnection on bracket 6 and secure with two screws 10 MA397400 lockwashers 9 and two nuts 8 Figure 4 26 Pan Safety Limit Switch Install bracket 6 and pan safety limit switch 2 Removal Installation as an assembly on seat weldment 7 and secure with two washers 5 lockwashers 4 and screws 3 Do not tighten screws fully 6 If installed remove jumper wire See Figure 4 25 from terminals of terminal block 4 7 If removed install control cover 2 on control Push pan slide assembly A inward until it panel 3 and secure with two screws 1 locks into its fully stowed position 8 If removed install motor cover assembly Refer Slide bracket 6 toward rear panel of pan slide to para 4 2 assembly until trip arm B of pan safety limit switch 2 is firmly tripped by
66. ddle Member Assembly Includes Items 14 thru 18 Items 2 thru 6 e e 030 0274 00 ee Journal Weldment 016 0151 00 Sprocket Includes Set Screw e e 029 3036 00 Sprocket Includes Item 17 e e 042 0008 00 ee Machine Key 040 0250 04 ee Set Screw e e 057 0105 00 see 016 0149 00 Bearing e e 016 0149 00 ee Bearing e e 030 0273 40 ee Idler Adjuster Weldment e e 030 0094 40 ee Middle Member Weldment e 016 0234 01 L H Base Slide Opposite 029 0070 00 Assembly 016 0234 000 R H Base Slide Shown 040 0008 30 030 0092 40 R H SupportChannelWeldment 045 0001 10 Lockwasher e 040 0250 88 e 052 0015 00 e Spacer e 030 0917 42 InnerMemberWeldment e 030 0092 41 L H Support Channel Weldment 061 0045 00 Cover Caution Label Always Specify Model amp Serial Number 2 d 4 5 6 7 8 9 0 1 sesch Midmark Corporation 1997 SF 1555 Rev 12 02 Page 6 18 Printed in U S A Return To Table Of Contents omponents SECTIONVI Base Electrical PARTSLIST Domestic 06 225900 Hem Part No 002 0040 00 061 0034 00 015 0002 01 045 0001 31 015 0014 00 040 001 0 04 Part No Description Power Cord Set Kit Cord Tag Strain Relief Bushing Lockwasher Wire Clip Description Motor Pump Assembly Refer to Breakdown Elsewhere 041 0250 13 053 0051 00 050 1533 40 040 0010 34 050 1532 40 053 0068 09 Motor Mount
67. e retaining ring 13 from end of rotor assembly shaft A 9 Remove rotor assembly 10 from manifold block 3 MA395700 Figure 4 9 Motor Pump Removal Installation 4 Connect male connector 1 anti cavitation solenoid valve C to elbow 2 and secure by tightening jam nut B 5 Install motor pump assembly Refer to para 4 9 6 Plug table power cord into outlet 4 11 Motor Shaft Seal Removal Installation A Removal 1 Unplug table power cord from outlet 2 Remove motor pump Refer to para 4 10 Midmark Corporation 1997 SF 1555 10 Using a screwdriver pry motor shaft seal 14 out of manifold block 3 B Installation 1 Clean all metal shavings off of all components 2 Coat motor shaft seal 14 with vaseline or mineral oil EQUIPMENT ALERT A Do not allow motor shaft seal to become cocked during installation or it will become impossible to install without damaging it 3 Using a hammer and 3 4 inch socket install motor shaft seal 14 in manifold block 3 4 Slide shaft of rotor assembly 10 thru manifold block 3 and secure in place by installing retaining ring 13 on end of rotor assembly shaft Page 4 9 Printed in U S A SECTION IV MAINTENANCE SERVICE Return To Table Of Contents Figure 4 10 Motor Shaft Seal Removal Installation 5 Install motor housing 12 on manifold block 3 and secure with four screws 11 6 Install w
68. embly Notes Pictorial Index Pictorial Index Back Components Back Components Upholstery Set Standard Upholstery Set Narrow Upholstery Set Styled Upholstery Set Thermoform Hydraulic System Headrest Assembly Seat Components Seat Components Stirrup Assembly Footboard Components Base Covers And Enclosures Base Mechanical Components Base Slide Assembly Base Electrical Components Domestic Base Electrical Components Export Indicates that there has been a serial number break for the illustration and that there are additional point page s following the original page Midmark Corporation 1997 SF 1555 Rev 11 02 Pagei Electrical Schematics Wiring Diagrams Printed in U S A Return To Table Of Contents TABLE OF CONTENTS CONTINUED Section Paragraph Page Section Paragraph Page Motor Pump Components 6 21 COMMENTS 7 1 Foot Control Assembly 6 22 FAX ORDERING FORM WE 7 2 Indicates that there has been a serial number break for the illustration and that there are additional point page s following the original page Midmark Corporation 1997 SF 1555 Rev 3 99 Page ii Printedin U S A Return To Table Of Contents IMPORTANT INSTRUCTIONS General Safety Instructions Safety First The primary concern of Midmark Corporation is that this table is maintained with the safety of the patient and staff in mind
69. en push the top of the capacitor in Using a screwdriver force tab of capacitor mounting bracket 8 down over catch 7 Install cable tie A to secure wire to capaci tor 7 Midmark Corporation 1997 SF 1555 Page 4 21 SECTION IV MAINTENANCE SERVICE 8 If removed install front inner shroud 5 on left and right hand inner shrouds 6 and secure with eight screws 4 Install front outer shroud 2 on left and right hand outer shrouds 3 and secure with four screws 1 10 7 Plug table power cord into outlet 4 18 Pan Safety Limit Switch Removal Installation Optional On Some Units A Removal NOTE In most cases if the pan safety limit switch is mal functioning the foot section cannot be moved However the foot section must be able to be moved in order to remove upholstered seat section so access to the pan safety limit switch can be gained Steps 1 thru 3 must be performed if the foot function will not move and is prohibiting the upholstered seat section from being removed 1 Remove motor cover assembly Refer to para 4 2 2 Remove two screws 1 Figure 4 25 and control cover 2 from control panel 3 3 Use a jumper wire A to connect between terminals of terminal block 4 so pan safety limit switch is bypassed by jumper wire See Section IV Figures 5 1 thru 5 2 to determine which terminals to connect the jumper wire to 4 Remove upholstere
70. her Roll Pin Screw Plug Midmark Corporation 1997 SF 1555 Rev 2 04 050 0872 40 040 0006 06 045 0001 29 040 0312 08 050 4924 40 Always Specify Model amp Serial Number Back Cover Washer Flat Support Plate Printedin U S A Return To Table Of Contents Upholstery Set Standard PARTSLIST MA246800 Item PartNo Description 5 Part Description 002 0558 Upholstery Set Standard Width Incl e 050 3102 40 Items 1 thru 20 Specify Color e 040 0006 00 e 053 0628 01 Headrest Cover e 057 0379 00 e 040 0006 20 e 028 0389 e 058 0001 03 e 028 0123 e 040 0006 00 002 0146 00 e 040 0010 78 Screw Apply Loctite 042 0024 00 e 016 0022 00 e Seat Cover e Spacer e Footrest Specify Color e Legrest Specify Color e Paper Tear Strip Set e 053 0582 01 Headboard Pillow Mount e 028 0388 e Seat Section Std Specify Color 042 0137 00 Upholstery Latch Stud 028 0387 e Back Section Std Specify Color 040 0010 104 028 0395 e Headrest Specify Color 042 0120 00 Upholstery Mount Stud Apply 050 2483 XX ePanellnsert Loctite 042 0024 00 3 See XX beside Panel Color Click on the Color Selector link above to see available colors Always Specify Model amp Serial Number Midmark Corporation 1997 SF 1555 Rev 4 08 Page 6 6 Printedin U S A OONDARWN Return To Table Of Contents Upholstery Set Narrow S
71. hould not move when either FOOT UP or FOOT DOWN pedal is depressed Midmark Corporation 1997 SF 1555 Page 2 1 BACK SECTION SEAT SECTION aa FOOT j lt SECTION T V VN PAN SLIDE ASSEMBLY OPTIONAL ON SOME S see UNITS CONTROL MA403400 Figure 2 1 Operational Test 6 Push pan slide assembly inward until pan safety limit switch is tripped Depress either FOOT UP or FOOT DOWN pedal on foot control Observe The foot section of table top should move when FOOT UP or FOOT DOWN pedal is depressed 2 2 Troubleshooting Procedures Table 2 1 is a Troubleshooting Guide which is used to determine the cause of the malfunction Printed in U S A SECTION H Table will not operate when any of the eight up or down functions are selected Return To Table Of Contents TESTING AND TROUBLESHOOTING Table 2 1 Troubleshooting Guide When a foot pedal is depressed motor pump does not run and solenoid cannot be heard being energized audible click When a foot pedal is depressed motor pump does not run but solenoid energizes audible click When a foot pedal is depressed motor pump runs and solenoid can be heard energizing Midmark Corporation 1997 SF 1555 Rev 12 02 Power cord is not plugged into facility wall outlet or on export models power cord isn t plugged into connector receptacle on table Facility circuit breaker providing power
72. igh of pressures and damaging the hydraulic system components hoses or the motor pump itself When the operator releases the pedal on the foot control the path to neutral is opened causing the motor pump to shut down and the anti cavitation solenoid valve and the cylinder solenoid valve to de energize causing the valves to close When no functions are selected 115 VAC is supplied to terminals 1 and 2 of all foot switches There is no path Midmark Corporation 1997 SF 1555 Page 1 3 SECTION I GENERAL INFORMATION to neutral however so no current flows and nothing happens When the operator selects one of the four down functions BACK DOWN TABLE DOWN FOOT DOWN or TILT DOWN with the foot control two paths to neutral are created Current flows from terminal 2 to terminal 4 of switch and then across the motor pump winding T3 to neutral starting the motor pump pumping Current also flows from terminal 2 to terminal 3 of switch and then across the coil of the cylinder solenoid valve and the time delay relay energizing the valve and causing it to open The time delay relay delays current flow across the coil of the cylinder solenoid valve for 1 10 of a second causing it to energize 1 10 of a second after the motor pump and anti cavitation solenoid valve have energized This allows the motor pump to run and oil pressure to build before table is operated so table top will not cavitate The foot function also has a pan safety
73. inder is disconnected which could result in serious personal injury 15 Remove hitch pin clip 8 clevis pin 9 and separate rod of base cylinder 10 from bracket 11 16 bd Remove capacitors E Refer to para 4 17 17 7 Remove four nuts 12 four screws 13 and two capacitor mounting brackets 14 from base slide assembly 7 18 e Disconnect spring 15 from base slide assem bly 7 19 7 Hemove eight screws 16 from base slide assembly 7 B Page 4 25 SECTION IV MAINTENANCE SERVICE NOTE If necessary remove four screws and brace F to allow base slide assembly to be pulled over base cylinder 20 With the help of an assistant remove base slide assembly 7 from base weldment 17 Installation 1 With the help of an assistant install base slide assembly 7 Figure 4 29 on base weldment 17 making sure base cylinder 10 gets inserted between brace F and base slide assembly 2 Secure base slide assembly 7 on base weldment 17 with eight screws 16 3 Connect spring 15 to base slide assembly 7 4 Install two capacitor mounting brackets 14 on base slide assembly 7 and secure with four screws 13 and nuts 12 b Install capacitors F Refer to para 4 17 6 Install rod end G of base cylinder 10 on bracket 11 and secure with clevis pin 9 and hitch pin clip 8 NOTE Install beveled edge of til
74. ion weldment 18 13 Unlock A three locking tabs 20 by pulling on locking tabs until locking tabs are free of three studs 21 14 Remove upholstered foot rest 22 from foot board assembly 19 by pulling straight up Side Panel Insert Removal 15 Using an index finger reach thru access hole F and push outward on side panel insert 23 until bottom edge of side panel insert can be grasped by the other hand Pull outward on bottom of side panel insert until it pops off of side panel 24 Printed in U S A MAINTENANCE SERVICE Return To Table Of Contents SECTION IV MA398200 Figure 4 34 Upholstery Removal Installation Printed in U S A Page 4 31 Midmark Corporation 1997 SF 1555 SECTION IV MAINTENANCE SERVICE B Installation Side Panel Insert Installation 1 Insert one end of side panel insert 23 into one of the panel slots G on side panel 24 Flex side panel insert in the middle and then insert free end of side panel insert into remaining panel slot G on other end of side panel Work side panel insert into proper position Upholstered Foot Rest Installation 2 Install upholstered foot rest 22 on foot board assembly 19 and secure by locking three locking tabs 20 onto three studs 21 3 Install foot board assembly 19 on foot exten sion weldment 18 making sure it locks into place Upholstered Leg Rest Installation 4
75. ion could result in serious personal injury or death 7 Remove capacitor cap 9 from capacitor 7 O Midmark Corporation 1997 SF 1555 Page 4 20 Printed in U S A Return To Table Of Contents 8 Discharge capacitor 7 9 Disconnect wires 10 and 11 from terminals of capacitor 7 10 Using a screwdriver pry tab of capacitor mounting bracket 12 upward and remove capacitor 13 from capacitor mounting bracket 11 Remove capacitor cap 14 from capacitor 13 WARNING A capacitor contains stored electricity Never touch terminals of a capacitor even if power has been shut off or disconnected Always discharge capacitor before touching capacitor terminals or wires Failure to comply with these instruction could result in serious personal injury or death 12 Discharge capacitor 13 13 Disconnect wires 11 and 15 from terminals of capacitor 13 B Installation 1 Connect capacitor wires 11 and 15 to termi nals of capacitor 13 2 Install capacitor cap 14 on capacitor 13 3 Position bottom of capacitor 13 on capacitor mounting bracket 12 and then push the top of the capacitor in Using a screwdriver force tab B of capacitor mounting bracket 12 down over catch C 4 Connect capacitor wires 10 and 11 to termi nals of capacitor 7 b Install capacitor cap 9 on capacitor 7 6 Position bottom of capacitor 7 on capacitor mounting bracket 8 and th
76. it reaches a point where the upper lock handle wants to lock 4 23 itself by going over center then allow upper lock handle to go over center a few degrees Return To Table Of Contents lock handle to go over center a few degrees Hold the lower lock handle in this position and adjust stop screw 4 so the lower lock handle will be forced to stop in this position each time it is locked Tighten nut 3 Stirrup Assembly And Components Removal Installation Hold the upper lock handle in this position and A Removal adjust stop screw 2 so the upper lock handle will be forced to stop in this position each time it 1 is locked 3 Tighten nut 1 4 Loosen nut 3 b Push on lower lock handle until it reaches a point where the lower lock handle wants to lock itself by going over center then allow lower MA397900 Figure 4 31 Headrest Handles Handle Stops Adjustment Midmark Corporation 1997 SF 1555 Page 4 28 Remove hole plug 1 Figure 4 32 from access hole A in seat weldment 2 MA398000 Figure 4 32 Stirrup Assembly And Components Removal Installation Insert screwdriver in access hole and remove screw 3 from stirrup assembly 4 Pull stirrup assembly 4 out of pivot boss 5 Remove pivot boss 5 and stirrup guide bracket 6 from stirrup mount weldment 7 If damaged remove stirrup index spring 8 from stirrup guide bracket 6 Printed in U S A Return To Table
77. motor pump and control panel can be carefully pushed out of the way to allow a socket and ratchet to be used on the bottom two screws 7 O Midmark Corporation 1997 SF 1555 Page 4 15 Printed in U S A SECTION IV MAINTENANCE SERVICE DANGER Make sure table top is properly secured from lowering or tipping over when base cylinder is disconnected from table top Clevis pin 2 Figure 4 18 should not have any weight on it if table top is supported prop erly Failure to have table top properly secured could result in serious personal injury or death 11 Remove hitch pin clip 1 Figure 4 18 and clevis pin 2 from rod end A of base cylin der 3 MA396600 Figure 4 18 Base Cylinder Removal Installation 12 Remove hitch pin clip 4 clevis pin 5 and partially separate base cylinder 3 from brackets 6 13 Cut two cable ties B securing hose assembly 7 to base cylinder 3 Midmark Corporation 1997 SF 1555 Page 4 16 Return To Table Of Contents 14 Disconnect hose assembly 7 from base cylinder 3 15 Place rags under base tee 8 NOTE When base tee is disconnected from base cylinder oil will be free to flow out of the motor pump thru the base tee Either be ready to install the new base cylinder or have drain pan and rags ready to catch the oil 16 Disconnect base tee 8 from base cylinder 3 Remove base cylinder from table
78. motor pump to cool and then try to operate table If motor pump does not run replace motor pump Refer to para 4 9 or 4 10 Replace motor pump Refer to para 4 9 or 4 10 Clean dirty connections Repair loose damaged connections If necessary add oil to reservoir Refer to para 4 3 Printedin U S A Table will not operate when any of the eight up or down functions are selected Continued The TABLE UP BACK UP TILT UP and FOOT UP functions do not work but TABLE DOWN BACK DOWN TILT DOWN and FOOT DOWN functions do Return To Table Of Contents TESTING AND TROUBLESHOOTING Table 2 1 Troubleshooting Guide Continued When a foot pedal is depressed motor pump runs but table top does not move When a foot pedal is depressed motor pump hums but does not run Motor pump runs when an up function foot pedal is depressed but table top does not move Motor pump does not run when an up function foot pedal is depressed but does when a down function foot pedal is depressed Midmark Corporation 1997 SF 1555 Rev 12 02 Time delay relay is malfunctioning Capacitor s is blown Motor pump is locked up or burned out Anti cavitation solenoid valve is malfunctioning Wire connections loose Up function shuttle valve is malfunctioning Motor pump is defective Motor pump is defective Wire connection in foot control is loose Page 2 3 Use a jumper wire to bypass
79. mponents Geheit PARTSLIST e 247201 Used on units with Serial Numbers HH1393 HN1070 KK6666 KL1017 thru Present Used on units with Serial Number V2200 thru Present Item PartNo Description Item PartNo Description 1 Upholstered Foot Rest Refer to 13 053 0018 00 Nyl o tape Upholstery Set Elsewhere 050 4127 00 Foot Trim Upholstered Leg Rest Referto 030 1333 40 Foot Extension Weldment Upholstery Set Elsewhere 042 0005 03 Clevis Pin 029 1646 01 Footrest Assembly Includes 042 0004 00 Pin Clip Items 4 thru 9 Foot Cylinder Referto Hydraulic e 030 1113 40 Footboard Weldment System Elsewhere e 050 0868 00 Channel 045 0001 31 Lockwasher 042 0010 02 040 0010 04 e 025 0045 01 et H Spring Shown 016 0076 00 Bushing 025 0045 000 R H Spring Not Shown 015 0082 01 Ground Braid 042 0010 11 045 0004 00 016 0542 00 e Slide Latch Assembly 042 0014 00 Shoulder Screw 042 0010 04 Pop Rivet 042 0007 00 042 0010 13 Pop Rivet 042 0006 01 Clevis Pin 041 0375 05 Jam Nut Always Specify Model amp Serial Number Midmark Corporation 1997 SF 1555 Rev 2 04 Page 6 15 2 Printedin U S A Base Covers Anc Trim tod Part No 040 0008 29 050 2677 40 050 0947 41 e 042 0045 02 029 1585 01 050 2639 41 e 042 0045 01 e 042 0045 02 029 1586 01 029 1608 01 061 0033 00 040 001 0 34 040 0010 129 050 2639 40 042 0045 01
80. n 1997 SF1555 Rev 8 99 Page 6 21 Printedin U S A Return To Table Of Contents Bel ated DISSE EU GE Ee LA Tte SUM RE SE EE zu SE dEr SECTIONVI PARTSLIST Part No 015 0606 03 e 002 0045 00 e 045 0001 07 e 041 0003 00 e 052 0076 00 e 040 0010 04 e 025 0009 00 e 052 0010 00 e 020 0144 03 e 052 0075 00 e 053 0155 00 e 040 0003 00 e 050 3258 00 e 053 0154 00 e 050 0941 03 e 061 0465 00 Description Foot Control Assembly Includes Items 1 thru 22 Spring e Spacer e Foot Control Casting e Spacer Split Bushing Early Units Only Step Mount e Foot Tread Part No e 045 0001 08 e 040 0010 36 e 053 0156 00 e 040 0010 35 e 040 0010 52 e 015 0008 00 e 050 0957 00 040 0010 04 040 0010 47 045 0001 08 050 0942 00 002 0048 00 002 0491 00 Always Specify Model amp Serial Number Midmark Corporation 1997 SF 1555 Rev 3 05 MA226600 Description e Washer e Screw Strain Relief Bushing e Strain Relief Bracket Lockwasher Wire Channel Cover Ground Wire Referto Wiring Diagram Section 5 Foot Control Cord Referto Wiring Diagram Section 5 Footswitch Cover Kit Not Shown Printed in U S A Return To Table Of Contents COMMENTS The Technical Publications Department of Midmark However if you find any errors or feel that there should Corporation takes pride in its publications We are su
81. ng step 14 If the disconnect two foot cylinder wires 4 from cylinder rod is fully extended or retracted when step terminal block 5 14 is being performed damage to seals will occurr Figure 4 19 Base Cylinder Clevis Adjustment Midmark Corporation 1997 SF 1555 Page 4 17 Printed in U S A Return To Table Of Contents SECTION IV MAINTENANCE SERVICE MA396900 MA396800 Figure 4 21 Shrouds Removal Installation Figure 4 20 Foot Cylinder Wire Disconnection Connection B Installation 6 Pull foot cylinder wires 4 out thru wire 1 Install foot cylinder 5 Figure 4 22 on brackets hole B 12 and secure with clevis pin 11 two E rings 10 clevis pin 9 and hitch pin clip 8 7 Remove four screws 1 Figure 4 21 and front outer shroud 2 from left and right hand outer 2 Connect hose assembly 7 to foot cylinder 5 shrouds 3 3 Connect hose assembly 6 to foot cylinder 5 8 Remove eight screws 4 and front inner shroud 5 from left and right hand inner shrouds 6 4 Secure hose assemblies 6 and 7 to foot cylinder 5 with cable ties 9 Cut cable ties D securing foot cylinder wire harness 1 Figure 4 22 b Secure foot cylinder wire harness 1 to seat weldment 4 with wire clip 3 and screw 2 10 N Remove screw 2 and wire clip 3 securing foot cylinder wire harness 1 to seat weldment 4 6 Feed foot cylinder wires 4 Figure 4 20 thr
82. noid valve 10 MA395300 Figure 4 5 Anti cavitation Solenoid Valve Removal Installation Installation EQUIPMENT ALERT A Do not coat last two threads of elbow and male connector with teflon tape or sealant Otherwise little particles of the tape sealant can break loose and can contaminate hydraulic system 1 Coat threads of elbow 7 and male connector 8 with pipe thread tape or sealant Printed in U S A Midmark Corporation 1997 SF 1555 Return To Table Of Contents 2 Install elbow 7 and male connector 8 on anti cavitation solenoid valve 10 3 Connect hose assembly 6 to elbow 7 4 Coat threads of male connector 8 with pipe thread tape or sealant b Connect elbow 9 to male connector 8 and secure by tightening jam nut C 6 Feed two anti cavitation solenoid valve wires 4 thru wire hole B 7 Connect two anti cavitation solenoid valve wires 4 to terminal block 5 and secure by tightening two terminal screws A 8 Install control cover 2 on control panel 3 and secure with two screws 1 9 Install motor cover assembly Refer to para 4 2 10 kb Plug table power cord into outlet 4 7 Up Functions Relief Valve Removal Installation A Removal 1 If possible raise TABLE UP function all the way up 2 Unplug table power cord from outlet 3 Remove motor cover assembly Refer to para 4 2 4 Remove four screws
83. nstallation E 4 2 4 5 Down Functions Shuttle Valve Removal Installation 0 2 2 222 7 4 3 4 6 Anti cavitation Solenoid Valve Removal Installation eege deen AA 4 4 47 Up Functions Relief Valve Removal Installation e Pct 4 5 4 8 Down Functions Relief Valve Removal IS ta e E 4 6 4 9 Motor Pump Assembly Complete Removal Installation 4 7 4 10 Motor Pump Removal Installation 4 8 4 11 Motor Shaft Seal Removal Installation 4 9 4 12 Back Cylinder Removal Installation 4 11 4 13 Cylinder Removal Installation 4 13 4 14 Base Cylinder Removal Installation 4 15 4 15 Foot Cylinder Removal Installation 4 17 Section Paragraph 4 16 Time Delay Relay Removal Installation Capacitors Removal Installation Pan Safety Limit Switch Removal Installation Chain Assembly Adjustment Base Slide Assembly Removal Installation Headrest Adjustment Headrest Handles Handle Stops Adjustment otirrup Assembly And Components Removal Installation Typical Foot Switch Removal Installation Upholstery Removal Installation Hydraulic System Flushing Procedure 4 17 4 18 4 19 4 20 4 21 4 22 4 23 4 24 4 25 4 26 SECTION V SCHEMATICS AND DIAGRAMS 5 1 5 2 Hydraulic Flow Diagrams SECTION VI PARTS LIST 6 1 Introduction 6 2 Description of Columns 6 3 Torque Specifications and Important Ass
84. nt Dowel Pin e Jam Nut e SetScrew e Screw e Screw e Headlock Base e PivotBar Draw Bar Printed in U S A Headrest Assembly EEN MA629800i ltem Part No Description Qty Part No Description N S P Headlock Head N S P DowelPin N S P Pivot Bar N S P Draw Bar N S P Over Center Handle N S P DowelPin N S P Screw N S P Screw N S P Headlock Base N S P Pivot Bar N S P Draw Bar 1 Upholstered Headrest Specify Color Referto Upholstery Set Elsewhere 1 002 0715 01 Headboard Pivot Mount 040 0008 35 Screw Apply Loctite Loctite 042 0024 00 057 0528 00 Headboard Pivot Pin 040 0250 79 016 0542 01 Slide Latch 029 3063 01 Two Arm Headlock Assembly Includes Items 8 thru 20 N S P N S P Set Screw 002 1007 01 Single Arm Headlock N S P Denotes Non Servicable Part Always Specify Model amp Serial Number Midmark Corporation 1997 SF 1555 Rev 10 07 Page 6 11 2 Printedin U S A Return To Table Of Contents SECTIONVI seat Components s PARTSLIST MA374600 Item PartNo Description Qty Item PartNo Description 1 Stirrup Assembly Includes Items 18 amp 015 0014 00 Wire Clip 19 Refer to Breakdown Elsewhere 040 0010 04 Upholstered Seat Section Referto 015 0082 01 Ground Braid Uphholstery Set Elsewhere 040 0001 31 Lockwasher 016 0140 00 Trim Lock Specify Length 2 040 0010 23 042 0
85. ntents Midmark Corporation 60 Vista Drive P O Box 286 Versailles Ohio 45380 0286 Ka 15 MIDMARIK Fax 937 526 5542 midmark com Because we care Subject to change without notice Hefer to www Documark com for latest revision Midmark Corporation 2005 Printed in U S A
86. om down function shuttle valve 1 Discard elbow 2 Coat two o rings on down functions shuttle valve 1 with mineral oil or vaseline 3 Install down functions shuttle valve 1 in motor pump 4 4 Coat threads of male connector 2 and elbow 3 with pipe thread tape or sealant 5 Install elbow 3 on down functions shuttle valve 1 6 Connect elbow 3 to male connector 2 and secure by tightening jam nut 7 If necessary add oil to motor pump Refer to para 4 3 8 Install motor cover assembly Refer to para 4 2 9 Plug table power cord into outlet 10 Dispose of used oil in accordance with local regulations 4 6 Anti Cavitation Solenoid Valve Removal Installation A Removal 1 Unplug table power cord from outlet 2 Remove motor cover assembly Refer to para 4 2 3 Remove two screws 1 Figure 4 5 and control cover 2 from control panel 3 4 Loosen two terminal screws A then tag and disconnect anti cavitation solenoid valve wires 4 from terminal block 5 Midmark Corporation 1997 SF 1555 Page 4 4 Return To Table Of Contents 5 Pull anti cavitation solenoid valve wires 4 out thru wire hole B 6 Disconnect hose assembly 6 from elbow 7 7 Using a wrench to hold male connector 8 stationary loosen jam nut C of elbow 9 Disconnect male connector 8 from elbow 9 8 Remove elbow 7 and male connector 8 from anti cavitation sole
87. ons properly otherwise Table functions properly otherwise Occurs for both the up and down functions Occurs for up functions only Occurs for down functions only Table is not stable and can be moved from side to side Midmark Corporation 1997 SF 1555 Pan safety limit switch is out of adjustment Pan safety limit switch is malfunctioning A cylinder solenoid valve is stuck in open position or is malfunctioning A foot switch is malfunctioning and holding cylinder solenoid valve in the open position Anti cavitation solenoid valve is malfunctioning Hydraulic system is low on mineral oil Up functions and down functions relief valves are malfunctioning Up functions relief valve is malfunctioning Down function relief valve is malfunctioning Chain assemblies are loose Base slide assembly is worn or deformed Page 2 7 Check to see if pan safety limit switch is being tripped by treatment pan assembly Perform continuity check on pan safety limit switch pan in closed Try to flush foreign objects out of cylinder solenoid valve by running oil through cylinder in both directions ten times Use multimeter to check for voltage at terminal 3 of suspect foot switch no voltage should be present when foot switch is in OFF position Replace suspect anti cavitation solenoid valve with known working anti cavitation solenoid valve Check oil level in reservoir
88. oodruff key 9 and pump gear 8 on shaft of rotor assembly 10 7 Install pump housing 7 on manifold block 3 and secure with four screws 6 8 Install magnet 4 on strainer 5 9 Make sure o ring B on manifold block is present and clean Coat o ring with mineral oil NOTE otrainer may get in way when reservoir is being installed If so rotate strainer out of the way 10 Install reservoir 2 on manifold block 3 and secure with four screws 1 11 Install motor pump Refer to para 4 10 12 Plug table power cord into outlet O Midmark Corporation 1997 SF 1555 Page 4 10 Printed in U S A Return To Table Of Contents SECTION IV MAINTENANCE SERVICE 4 12 Back Cylinder Removal Installation 6 Remove motor cover assembly Refer to para 4 2 A Removal 7 Remove two screws 1 Figure 4 12 and 1 Unplug table power cord from outlet control cover 2 from control panel 3 2 Remove upholstered seat section Refer to 8 Loosen two terminal screws a then tag and steps 6 thru 8 of para 4 25 disconnect back cylinder wires 4 from terminal block 5 3 Remove four screws 1 Figure 4 11 and front outer shroud 2 from left and right hand outer shrouds 8 MA396000 Figure 4 12 Back Cylinder Wires Disconnection Connection 9 Pull back cylinder wires 4 out thru wire hole B 10 Remove four screws 1 Figure 4 13 and back cover 2 from back
89. or pump is defective Motor pump is defective Wire connection in foot control is loose TABLE UP or TABLE DOWN foot switch is malfunctioning Wire connection to foot switch is loose TABLE UP or TABLE DOWN foot switch is malfunctioning BACK UP or BACK DOWN foot switch is malfunctioning Wire connection to foot switch is loose BACK UP or BACK DOWN foot switch is malfunctioning Page 2 4 Check to see if check ball is loose in down function shuttle valve or adjacent elbow check ball should be held in shuttle valve by metal ring Replace suspect motor pump with known working motor pump Replace suspect motor pump with known working motor pump Check all wiring connections in foot control Perform a continuity check on suspect foot switch in ON and OFF positions or replace suspect foot switch with known working foot switch Check all wiring connections on suspect foot switch Perform a continuity check on suspect foot switch in ON and OFF positions or replace suspect foot switch with known working foot switch Perform a continuity check on suspect foot switch in ON and OFF positions or replace suspect foot switch with known working foot switch Check all wiring connections on suspect foot switch Perform a continuity check on suspect foot switch in ON and OFF positions or replace suspect foot switch with known working foot switch Replace down function shuttle valve Refe
90. orporation 1997 SF 1555 Rev 1 01 Return To Table Of Contents Back Components 045 0001 05 040 0375 46 042 0007 00 042 0006 01 042 0006 00 016 0542 00 061 0117 00 050 0872 40 040 0006 06 Always Specify Model amp Serial Number SECTIONVI PARTSLIST MA266901 Description Lockwasher Screw Plug E Ring Clevis Pin Back Cylinder Refer to Hydraulic System Elsewhere Clevis Pin Slide Latch Assembly Two Arm Headlock Assembly Refer to Headrest Assembly Elsewhere Standards Label Back Cover Serial Number Printedin U S A SECTIONVI PARTSLIST MA266901 Part No Description Description 050 0472 40 Paper Cover 042 0007 00 045 0001 12 Curved Washer 042 0006 01 Clevis Pin 042 0010 03 Pop Rivet Back Cylinder Refer to Hydraulic 030 1289 40 Back Weldment System Elsewhere 042 0010 11 Pop Rivet 042 0006 00 Clevis Pin 002 0146 00 Paper Tear Strip Set 24 016 0542 00 Slide Latch Assembly 016 0022 00 Two Arm Headlock Assembly Refer to Upholstered Back Section Refer to Headrest Assembly Elsewhere Upholstery Set Elsewhere 061 0117 00 Standards Label 040 0250 88 050 0872 40 Back Cover 045 0001 31 Lockwasher 040 0006 06 015 0082 02 Grounding Braid Serial Number 040 0010 04 040 0250 39 045 0001 29 Washer Flat 045 0001 05 Lockwasher 040 0312 08 040 0375 46 Screw Plug 050 4924 40 Support Plate Always Specify Model amp Serial Number 1 2
91. p or down as necessary 14 Repeat steps 10 thru 14 until foot section is level with seat section when FOOT UP function is completely raised 15 Install any cable ties D removed during removal Midmark Corporation 1997 SF 1555 Rev 12 02 Page 4 19 SECTION IV MAINTENANCE SERVICE 16 Install front inner shroud 5 Figure 4 22 on left and right hand inner shrouds 6 and secure with eight screws 4 17 Install front outer shroud 2 on left and right hand outer shrouds 3 and secure with four screws 1 18 If necessary add oil to motor pump Refer to para 4 3 19 Install motor cover assembly Refer to para 4 2 20 Plug table power cord into outlet 4 16 Time Delay Relay Removal Installation A Removal EQUIPMENT ALERT Put a multimeter in line w time delay relay and run each cylinder one at atime A reading gt 1 2 amps indicates a faulty cylinder Replace cylinder before replacing the relay Failure to do so will result in damage to new relay 1 Unplug table power cord from outlet 2 Remove motor cover assembly Referto para 4 2 3 Remove two screws 1 Figure 4 23 and control cover 2 from control panel 3 4 Tag and disconnect two wires 4 from terminals of time delay relay 5 5 Remove nut 6 screw 7 washer 8 and time delay relay 5 from control panel 3 B Installation 1 Install time delay relay 5 on control panel 3 and secure
92. pany that owns the table for this information Otherwise this information may be obtained from the dealer that sold the table NOTE It is important that the entire Model and Serial Number be presented when ordering parts schedul ing a service call or seeking technical advice 3 Determine the installation date of the table and 1 Referto Figure 1 3 to determine the location of record this data the model number A and serial number B of the table and record this data Table 1 3 Special Tool List Manufacturer s Manufacturer s Description of Special Tool Name Address Phone Part Number Purpose of Special Tool Multimeter Commercially Available Used to perform continuity and voltage checks Torque Wrench Commercially Available Used to tighten all hardware to torque values specified Midmark Corporation 1997 SF 1555 Page 1 5 Printed in U S A Return To Table Of Contents SECTION I GENERAL INFORMATION 4 Call Midmark with the recorded information and ask for the Medical Products Technical Ser vices Department See back cover of this manual for the phone number or use the Fax Order Form See page 7 2 for Fax Order Form 1 7 Special Tools Table 1 3 lists all of the special tools needed to repair the table how to obtain the special tools and the purpose of each special tool Midmark Corporation 1997 SF 1555 Page 1 6 Printed inU S A Return To Table Of Contents SECTION II TESTING AND
93. r to para 4 5 Replace motor pump Refer to para 4 9 or 4 10 Replace motor pump Refer to para 4 9 or 4 10 Clean any dirty connections Tighten any loose connections Replace any damaged connections Replace foot switch Refer to para 4 24 Clean any dirty connections Tighten any loose connections Replace any damaged connections Replace foot switch Refer to para 4 24 Replace foot switch Refer to para 4 24 Clean any dirty connections Tighten any loose connections Replace any damaged connections Replace foot switch Refer to para 4 24 Printed in U S A Return To Table Of Contents SECTION Il TESTING AND TROUBLESHOOTING Table 2 1 Troubleshooting Guide Continued TILT UP function works but TILT DOWN function does not or TILT DOWN function works but TILT UP function does not All other functions work FOOT UP function works but FOOT DOWN function does not or FOOT DOWN function works but FOOT UP function does not All other functions work TABLE UP and TABLE DOWN functions do not work All other functions work Motor pump does not run and tilt cylinder solenoid valve does not energize Motor pump runs but tilt cylinder solenoid valve does not energize or vice versa Motor pump does not run and foot cylinder solenoid valve does not energize Motor pump runs but foot cylinder solenoid valve does not energize or vice versa Motor pump runs when TABLE UP or TABLE
94. re be a change addition or deletion to a manual please that our manuals will fill all of your needs when you are let us know performing scheduled maintenance servicing or repairs on a Midmark product Page s and Paragraph s Needing Changed Description of Error or Desired Change Please fax or mail a copy of this completed comment sheet to Midmark Corporation ATTN Technical Publications Department 60 Vista Drive Versailles Ohio 45380 Fax 937 526 5542 Midmark Corporation 2000 SF 1621 Page 7 1 Printed U S A Return To Table Of Contents FAX ORDERING FORM SERVICE PARTS ONLY NOTES e ALL BLOCKED AREAS MUST BE COMPLETED e USE FOR NON WARRANTY FAX ORDERS ONLY WARRANTY ORDERS MUST BE TELEPHONED IN 1 800 MIDMARK ATTENTION SERVICE DEPARTMENT FAX 877 249 1793 ACCT P O DATE _W _ NAME SHIP TO ADDRESS CITY ST CONTACT PHONE METHOD OF SHIPMENT OTHER NON EMERGENCY ORDER TO SHIP WITHIN 72 HOURS IF PART S IN STOCK UPS FED EX fl wexrpavAM NEXT DAY AM EMERGENCY ORDER TO SHIP WITHIN 24 HOURS IF PART S IN STOCK IF ORDER IS RECEIVED BEFORE 1 00 P M 5 NEXT DAY P M B NEXT DAY P M SEND NOTIFICATION IF PARTS ARE NOT AVAILABLE TO SHIP WITHIN 24 HOURS VIA 2ND DAY 2ND DAY E MAIL OR FAX TO _ GROUND ECONOMY Midmark Corporation 2000 Rev 1 07 Page 7 2 Printedin U S A Return To Table Of Contents Return To Table Of Co
95. s no dirt particles Page 4 34 14 15 Return To Table Of Contents Run all the functions up and down until all air is purged from the hydraulic system Lower all functions then check oil level and add or remove oil as necessary Refer to para 4 3 Install motor cover assembly Refer to para 4 2 Dispose of used oil in accordance with local regulations Printed in U S A Return To Table Of Contents SECTION V SCHEMATICS AND DIAGRAMS SECTION V SCHEMATICS AND DIAGRAMS 5 1 Electrical Schematics Wiring wiring connections between the electrical components Diagrams in the table Record serial number of table being worked on in order to determine which electrical Figures 5 1 thru 5 8 illustrate the logic current flow and schematic or wiring diagram to use WHITE BLACK WHITE BLACK ANTI CAVITATION CAPACITORS SOLENOID VALVE 124 149 MFD 250 VAC AS BLACK TIME DELAY RELAY GONE INTERNAL VIEW OF FOOT SWITCHES FOOTSWITCH ASSEMBLY NOTE IF AN UP FOOT SWITCH amp DOWN FOOT SWITCH ARE ENERGIZED AT THE SAME TIME THE CIRCUIT BECOMES INOPERATIVE FOOT DOWN GE be oz 3 4 3 4 2 1 2 1 FOOT SWITCH FOOT SWITCH IN OFF IN ON POSITION POSITION BLACK 115 VAC GREEN YELLOW WHITE NEUTRAL GREEN GROUND emmer ER TABLE Down TABLE DOWN BLACK MOTOR WHITE C FOOT CYLINDER 0 we EH oe me
96. stery and Panels Elsewhere Nameplate Label 319 Used on 319 003 004 Nameplate Label 75 Evolution Used on 319 005 006 R H Inner Shroud Less Nutsert Motor Cover Strap Export Units Only 2 Printed in U S A SECTIONVI Base Mechanica PARTSLIST Components 0 BASE REPAIR COMPONENTS MA224201 Used on units with Serial Numbers HH1000 thru HH1392 HN1000 thru HN1069 KK1000 thru KK6665 and KL1000 thru KL1016 Part No Description Item Part No Description 040 0250 04 Set Screw Base Slide Assembly Referto 057 0027 00 Tilt Pivot Pin Breakdown Elsewhere 042 0005 03 Clevis Pin 042 0007 00 Base Cylinder Refer to Hydraulic 042 0006 01 Clevis Pin System Elsewhere Tilt Cylinder Assembly Refer to 042 0005 01 Clevis Pin Hydraulic System Elsewhere 042 0004 00 Hitch Pin Clip 042 0006 00 Clevis Pin 050 1475 40 Seat Weldment Refer to Seat 040 0375 00 Components Elsewhere 016 0001 00 Leveling Screw 002 0514 00 Base Repair Kit Includes Items 20 thru 22 015 0001 00 Wire Clip Not used with Rotational Bases 040 0010 04 e 040 0250 89 030 1057 00 Stationary Base Weldment e 030 1010 00 Base Cylinder Mount Weldment e 042 0045 01 Nutsert e 041 0250 13 Always Specify Model amp Serial Number Midmark Corporation 1997 SF 1555 Rev 9 02 Page 6 17 Printed in U S A SECTIONVI PARTSLIST Base Mechanica Components Part No
97. sure the minimum bend radius of the hose will not be reduced risking collapse and or premature failure of the hose TYPICAL ON ALL CYLINDERS Part No Description 002 0444 00 Motor Pump Components See Breakdown Elsewhere 002 0001 00 Base Oylinder Kit 014 0135 00 Base Tee 014 0098 00 Union Tee 002 0120 00 Hose Assembly Kit 002 01 17 00 Hose Assembly Kit 002 01 19 00 Hose Assembly Kit 002 0122 00 Hose Assembly Kit 002 0121 00 Hose Assembly Kit 014 0136 00 Tilt Power Manifold 002 0123 00 Hose Assembly Kit 061 0113 00 Safety Cable Label 016 0161 00 Safety Cable 014 0137 00 Return Manifold Midmark Corporation 1997 SF 1555 Rev 9 01 Item Part No 002 0125 00 002 0126 00 002 0002 00 002 0124 00 002 0003 00 002 0346 00 025 0032 00 054 0109 00 054 0108 00 053 0226 03 015 0013 00 015 0013 02 015 0016 00 015 0017 00 Always Specify Model amp Serial Number SECTIONVI PARTSLIST MA241500 Description Hose Assembly Kit Hose Assembly Kit Tilt Cylinder Kit Hose Assembly Kit Foot Cylinder Kit Back Cylinder Rod Wiper Bracket Felt Wiper 1 Felt Wiper 11 16 Snap in Nyliner Bearing Cable Tie Not Shown Cable Tie Not Shown Cable Tie Not Shown Cable Tie Not Shown Printedin U S A Return To Table Of Contents Headrest Assembly ru Part No Description Part No Description 1 Upholstered Headrest Specify Color Referto Upholstery Set Elsewhere 1 002
98. switch 8 5b Install foot switch bracket 2 on foot control 5 Remove two nuts 9 washers 10 screws casting 3 and secure with two screws 1 11 and foot switch 8 from foot switch bracket 2 6 Plug table power cord into outlet B Installation 1 Install foot switch 8 on foot switch bracket 2 and secure with two screws 11 washers 10 and nuts 9 O Midmark Corporation 1997 SF 1555 Page 4 29 Printed in U S A SECTION IV MAINTENANCE SERVICE 4 25 Upholstery Removal Installation A Removal 1 Move table top to flat position Upholstered Headrest Assembly Removal 2 Unlock A three locking tabs 1 Figure 4 34 by pulling on locking tabs until locking tabs are free of three studs 2 3 Remove upholstered headrest assembly 3 from headboard pivot mount 4 by pulling upholstered headrest assembly straight off Upholstered Back Section Removal NOTE Locking tabs are in paper roll holder cavity 4 Unlock A two locking tabs 5 by pulling on locking tabs until locking tabs are free of studs 6 On a two piece seat amp back upholstery set raise upward on head end of upholstered back section 7 approximately 1 2 54 cm until two studs 6 are free of back weldment 8 then slide upholstered back section approxi mately 1 in 2 5 cm toward head end of table until stud 9 is in rounded part of locking slot C Lift upholstered back section 7 straight up and remove
99. t E TILT DOWN BLACK RB eM DOWN GREEN GROUND BROWN Ll x GREEN YELLOW da BLUE 220 V A C 4 AMPS Ee 50 HZ B5 X 20 MM 6 3 AMP SLO BLO FUSES LE 015 0346 01 YELLOW MOTOR BLACK PUMP me AN WHITE FOOT CYLINDER CO BLACK me 4 roues 0 INTERNAL VIEW FOOT SWITCHES BLACK d ses 3 3 4 BLACK 2 1 2 1 FOOT SWITCH FOOT SWITCH WHITE BASE CYLINDER 0 MA438000 IN OFF IN ON POSITION POSITION Figure 5 3 Wiring Diagram Used on Units with Serial Number HN1000 thru Present Midmark Corporation 1997 SF 1555 Rev 5 99 Page 5 9 Printed in U S A Return To Table Of Contents SECTION V SCHEMATICS AND DIAGRAMS CONNECTION TO PRIMARY ISOLATION OF TRANSFORMER DEPENDS ON TABLE DESTINATION lum TRANSFORMER 220 V A C 4 AMPS 50 HZ WHITE ANTI CAVITATION SOLENOID VALVE BLACK 2 FOOT SWITCHES 24 CAPACITORSE M BLACK MOTOR FOOT DOWN PUMP RED 1 O Os BLACK RED BLACK FOOT UP FOOT BLUE CYLINDER SOLENOID VALVE TILT CYLINDER E TIME DELAY 9 RELAY lt O O m i BACK CYLINDER SOLENOID VALVE BASE CYLINDER SOLENOID VALVE TABLE UP Lu 24 438100 Figure 5 4 Electrical Schematic Used on Units with Serial Number HN1000 thru Present O Midmark Corporation 1997 SF 1555 Page 5 4 Printed in U S A ANTI CAVITATION
100. t Part No 319 003 319 004 Description Page Power Examination Table 115 V Serial Number Prefix HH Power Examination Table 220 V Serial Number Prefix HN e Back Components Upholstery Set Standard Upholstery Set Narrow e Upholstery Set Styled Upholstery Set Thermoform Hydraulic System Headrest Assembly Seat Components e Stirrup Assembly e Footboard Components Base Covers And Enclosures Base Mechanical Components se Base Slide Assembly Base Electrical Comp Domestic 6 19 Base Electrical Comp Export Motor Pump Assembly e Foot Control Assembly OPTIONAL ACCESSORIES Refer to MEDICAL ACCESSORY BOOK 004 0096 00 e 9A4300X e Chair Arm Item 37 38 39 Part No e 9A5100X e 9A6000X e 9A6700X e 9A6800X e 9A7500X e 9A7700X e 9A7800X e 9A8100X e 9A8200X e 9A8300X e 9A14700X e 9A15700X e 9A17900X e 9A18200X e 9A18400X e 9A19700X e 9A19800X e 9A19900X e 9A20000X e 9A20900X e 9A22100X e 9A22200X e 9A22800X e 9A26700X e 9A26800X Always Specify Model amp Serial Number Page 6 2 Description e Facial Pad Restraint Belts e Table Rail Kit Treatment Pan Assembly Caster Base ASSy 9A75 e Vision Block Screen Articulating Armboard Special Procedures Armboard e Instrument Tray Knee Crutch Assy 9A147 Side Rail ASSY 9A157
101. t screws 9 14 7 Install front outer shroud 8 left and right hand outer shrouds 3 and secure with four screws 7 15 kb Install back inner shroud 5 on left and right hand inner shrouds 6 and secure with eight screws 4 16 7 Install back outer shroud 2 left and right hand outer shrouds 3 and secure with four screws 1 MA397800 17 Figure 4 30 Headrest Adjustment kb Install motor cover assembly Refer to para 4 2 5 Unlock lower lock handle D 18 kb Plug table power cord into outlet 6 Loosen setscrew 3 4 21 Headrest Adjustment 7 Tighten adjusting screw 4 slightly then lock A Adjustment lower lock handle D Repeat this step until axis 3 E has the strongest possible holding 1 Unlock upper lock handle A Figure 4 30 power but operation of lower lock handle is not too difficult 2 Loosen setscrew 1 Figure 4 30 Tighten setscrew 3 3 Tighten adjusting screw 2 slightly then lock upper lock handle A Repeat this step until axis 1 B and axis 2 C have the strongest possible holding power but operation of upper lock handle is not too difficult Tighten setscrew 1 Midmark Corporation 1997 SF 1555 Page 4 27 Printed in U S A SECTION IV MAINTENANCE SERVICE 4 22 Headrest Handles Handle Stops Adjustment A Adjustment 1 Loosen nut 1 Figure 4 31 2 Push on upper lock handle until
102. t 042 0007 00 042 0010 13 Pop Rivet 042 0006 01 041 0375 05 Jam Nut Always Specify Model amp Serial Number Midmark Corporation 1997 SF 1555 Page 6 15 Printed in U S A Footboard Components Return To Table Of Contents SECTIONVI PARTSLIST MA247201 Used on units with Serial Numbers HH1010 thru HH1392 HN1000 thru HN1069 KK1163 thru Part No 029 1646 01 e 030 1113 40 e 050 0868 00 e 042 0010 02 e 025 0045 01 e 025 0045 00 042 0010 1 1 e 016 0542 00 042 0010 04 042 0010 13 041 0375 05 Description Upholstered Foot Rest Refer to Upholstery Set Elsewhere Upholstered Leg Rest Refer to Upholstery Set Elsewhere Footrest Assembly Includes Items 4 thru 9 Footboard Weldment Catch Channel Pop Rivet H Spring Shown R H Spring Not Shown e Pop Rivet e Slide Latch Assembly Pop Rivet Pop Rivet Jam Nut Midmark Corporation 1997 SF 1555 Rev 1 02 Page 6 15 1 KK6665 and KL1000 thru KL1016 Part 016 0604 01 050 4127 00 030 0886 40 042 0005 03 042 0004 00 045 0001 31 040 0010 04 016 0076 00 015 0082 01 045 0004 00 042 0014 00 042 0007 00 042 0006 01 Always Specify Model Serial Number Description Foot Trim Foot Extension Weldment Clevis Pin Pin Clip Foot Cylinder Referto Hydraulic System Elsewhere Lockwasher Bushing Ground Braid Printed in U S A Return To Table Of Contents Footboard Co
103. t allows the oil to flow through the newly uncovered reservoir ports into the reservoir When the cylinder rod reaches the end of its travel the down functions relief valve opens when the pressure reaches 250 325 PSI 17 2 22 4 BARS and allows the oil to Printedin U S A SECTION I GENERAL INFORMATION return to the reservoir This prevents the motor pump from developing too high of pressures and damaging the hydraulic system components hoses or the motor pump itself When the operator releases the pedal on the foot control the path to neutral is opened causing the motor pump to shut down and the cylinder solenoid valve to de energize causing the valve to close The anti cavitation solenoid valve is in the hydraulic system to prevent oil from escaping out of the rod end of a cylinder while the table is not being moved Other wise a cylinder rod would be able to extend on its own if upward pressure was placed on that function of the table top by the doctor or patient The cylinder solenoid valves are in the hydraulic system to prevent oil from escaping out of the base of the cylinder assemblies Otherwise a cylinder assembly could retract on its own allowing the table top to drift 1 4 Standard Torque Specifications The following standard torque specifications in Table 1 1 apply to the various hardware used on the units unless otherwise listed elsewhere in service procedures or parts illustrations Table 1 1 Torque
104. t pivot pins first The beveled edge allows the tilt pivot pins to be started more easily 7 Raise BASE UP function until base slide assembly 7 is aligned with seat weldment 18 Secure base slide assembly to seat weldment with two tilt pivot pins 6 8 Secure tilt pivot pins 6 in place by tightening four setscrews 5 9 Install base of tilt cylinder 3 on bracket 4 and secure with clevis pin 2 and two E rings 1 10 Remove supports A from under head section C and foot section B of table top D Printed in U S A Return To Table Of Contents SECTION IV MAINTENANCE SERVICE d 0 M 5 A GN 4 LA ZS X x X A MA397700 Figure 4 29 Base Slide Assembly Removal Installation Midmark Corporation 1997 SF 1555 Page 4 26 Printed in U S A Return To Table Of Contents SECTION IV MAINTENANCE SERVICE 11 Install left and right hand outer shrouds 3 Figure 4 28 on base weldment 15 and secure with six screws 14 12 7 Install left and right hand inner shrouds 6 base slide assembly 13 and secure with six washers 12 and screws 11 13 bd Install front inner shroud 10 on left and right hand inner shrouds 6 and secure with eigh
105. tion A Removal 1 If possible raise TABLE UP function all the way up 2 Move the back seat and foot sections of the table top to a horizontal position 3 Unplug table power cord from outlet 4 Remove motor cover assembly Refer to para 4 2 5 Remove four screws 1 Figure 4 28 and back outer shroud 2 from left and right hand outer shrouds 3 MA397500 Figure 4 27 Chain Assembly Adjustment Midmark Corporation 1997 SF 1555 Page 4 23 Printed in U S A Return To Table Of Contents SECTION IV MAINTENANCE SERVICE U 9 t 2 82 34 2 4 EEN E at Die 7451 S 6 d 47 Es ET n n s MA397600 Figure 4 28 Shrouds Removal Installation 6 Remove eight screws 4 and back inner 10 Remove six screws 14 and left and right hand shroud 5 from left and right hand inner outer shrouds 3 from base weldment 15 shrouds 6 WARNING 7 Remove four screws 7 and front outer shroud The supports must be capable of 8 from left and right hand outer shrouds 8 holding up table top after table top is disconnected from base slide assembly and the 8 Remove eight screws 9 and front inner shroud base slide assembly is removed Failure to 10 from left and right hand inner shrouds 6 support table top properly could result in table top falling out of con
106. tor cover assembly Refer to para 4 2 7 Plug table power cord into receptacle 8 Dispose of used oil in accordance with local regulations 4 8 Down Functions Relief Valve Removal Installation A Removal 1 Unplug table power cord from outlet 2 Remove motor cover assembly Refer to para 4 2 3 Remove four screws 1 Figure 4 7 and back outer shroud 2 from left and right hand outer shrouds 3 NOTE The back inner shroud must be removed if it will obstruct removal of up functions relief valve Midmark Corporation 1997 SF 1555 Page 4 6 Return To Table Of Contents MA395500 Figure 4 7 Down Functions Relief Valve Removal Installation 4 If necessary remove eight screws 4 and back inner shroud 5 from left and right hand inner shrouds 6 NOTE Oil will flow out of relief valve port when down functions relief valve is removed Either have the new down functions relief valve ready to install or place a drain pan under relief valve port to catch oil Printed in U S A Return To Table Of Contents SECTION IV MAINTENANCE SERVICE 5 Remove down functions relief valve 7 from 5 If necessary add oil to motor pump Refer to motor pump 8 para 4 3 B Installation 6 Install motor cover assembly Refer to para 4 2 1 Coat two o rings A on down functions relief valve 7 with mineral oil or vaseline 7 Plug table power cord into receptacle EQ
107. toward foot end of table until two studs 6 fit thru stud holes in back weldment 8 Secure uphol stered back section 7 in place by locking B two locking tabs 5 onto two studs 6 NOTE On a one piece seat amp back upholstery set a strip of velcro is used instead of a stud 9 and locking slot C If installing upholstered seat section for the first time the backing from the velcro strip must be removed and it must be firmly applied to the back weldment 8 On a one piece seat amp back upholstery set lower upholstered back section 7 down onto back weldment 8 making sure two studs 6 are inserted in two stud holes in back weldment Secure upholstered back section C in place by locking two locking tabs 5 onto two studs 6 Upholstered Headrest Assembly Installation 8 Install upholstered headrest assembly 3 on headboard pivot mount 4 and secure by locking three locking tabs 1 onto three studs 2 5 Lower FOOT DOWN function all the way down Printed in U S A Return To Table Of Contents SECTION IV MAINTENANCE SERVICE 4 26 Hydraulic System Flushing Proce 3 Remove filler cap 1 Figure 4 35 from reser dure voir 2 4 Get a suitable drain pan with a capacity of approximately 2 quarts 1 9 liters NOTE The following procedure is recommended for the following reasons 5 e The hydraulic system is excessively contami nated with dirt particles or water causing Using a s
108. trol which could result in 9 Remove six screws 11 washers 12 and left serious personal injury or death and right hand inner shrouds 6 from base slide assembly 13 Midmark Corporation 1997 SF 1555 Page 4 24 Printed in U S A Midmark Corporation 1997 SF 1555 Return To Table Of Contents 11 Place supports A Figure 4 29 under foot section B and head section C of table top making sure weight of table top D is being supported by supports If necessary plug table power cord into outlet and lower table top onto supports Unplug table power cord from outlet 12 5 Hemove two E rings 1 Figure 4 29 clevis pin 2 and separate tilt cylinder 3 from bracket 4 13 Loosen four setscrews 5 Remove two tilt pivot pins 6 from base slide assembly 7 DANGER Make sure table top D is properly supported for the following step Table top will rest only on supports after this step Also do not touch any wires inside of table when power cord is plugged in This could result in electrical shock Failure to comply with this warning could result in serious personal injury or death 14 Plug table power cord into outlet Lower TABLE DOWN function all the way down Unplug table power cord from outlet WARNING Make sure base slide assembly is fully retracted collapsed before discon necting base cylinder Failure to do so will result in base slide assembly collapsing after base cyl
109. ty of wire and connections Check continuity of wire and connections Replace foot switch Refer to para 4 24 Clean any dirty connections Tighten any loose connections Replace any damaged connections Replace foot switch Refer to para 4 24 Replace foot switch Refer to para 4 24 Clean any dirty connections Tighten any loose connections Replace any damaged connections Replace foot switch Refer to para 4 24 Replace base cylinder Refer to para 4 14 Clean any dirty connections Tighten any loose connections Replace any damaged connections Clean any dirty connections Tighten any loose connections Replace any damaged connections Printed in U S A SECTION II BACK UP and BACK DOWN functions do not work All other functions Work TILT UP and TILT DOWN functions do not work All other functions Work FOOT UP and FOOT DOWN functions do not work All other functions work Return To Table Of Contents TESTING AND TROUBLESHOOTING Table 2 1 Troubleshooting Guide Continued Motor pump runs when BACK UP or BACK DOWN foot pedal is depressed but table does not move Motor pump runs when TILT UP or TILT DOWN foot pedal is depressed but table does not move Motor pump runs when FOOT UP or FOOT DOWN foot pedal is depressed but foot section does not move Midmark Corporation 1997 SF 1555 Back cylinder solenoid valve is malfunctioning White black wire running
110. u wire hole B in control panel 3 11 Cut cable ties securing hose assemblies to foot cylinder 5 7 Connect two foot cylinder wires 4 to terminal block 5 and secure with two terminal 12 Disconnect hose assembly 6 from foot screws A cylinder 5 8 Install control cover 2 on control panel 3 and 13 Disconnect hose assembly 7 from foot secure with two screws 1 cylinder 5 9 Plug table power cord into outlet 14 Support foot section of table top and then remove hitch pin clip 8 clevis pin 9 two E 10 Raise FOOT UP function all the way up rings 10 clevis pin 11 and foot cylinder 5 from brackets 12 Midmark Corporation 1997 SF 1555 Rev 9 00 Page 4 18 Printedin U S A Return To Table Of Contents MA397000 Figure 4 22 Foot Cylinder Removal Installation 11 If foot section is not level with seat section when FOOT UP function is completely raised perform steps 12 thru 14 See Figure 4 22 If foot section is level when the FOOT UP func tion is completely raised go to step 15 EQUIPMENT ALERT The cylinder rod A must be partially ex tended before performing step 13 Ifthe cylinder rod is fully extended or retracted when step 13 is being performed damage to seals will occurr 12 Lower FOOT DOWN function down until cylinder rod is extended halfway 13 Place a wrench on adjusting seats B of cylinder rod and use it to rotate cylinder rod to adjust clevis C u
111. ug table power cord into outlet Midmark Corporation 1997 SF 1555 Rev 6 02 Page 4 1 MA394900 Figure 4 1 Motor Cover Assembly Removal Installation 4 3 Checking Adding Oil To Motor Pump A Checking Adding Oil 1 Move the BASE DOWN BACK DOWN TILT DOWN and FOOT DOWN functions all the way down 2 Remove motor cover assembly Referto 4 2 3 Remove filler cap 1 Figure 4 2 from motor pump 2 NOTE Newer models do not have screw 8 or oil level check hole Check oil level thru the fill port 4 Remove screw 3 and gasket 4 from motor pump 2 5 Check oil level If oil level in reservoir is not even with oil level check hole oil must be added 6 Place a rag under oil level check hole A Printedin U S A Return To Table Of Contents SECTION IV MAINTENANCE SERVICE 4 4 Up Functions Shuttle Valve Removal Installation A Removal WARNING Always disconnect the power cord outlet before removing any of the table s covers shrouds or making any repairs to prevent the possibility of electrical shock Failure to comply with these instructions could result in severe personal injury or death 1 Unplug table power cord from outlet 2 Remove motor cover Refer to para 4 2 NOTE The up functions shuttle valve is lower than the oil level in the motor pump reservoir and oil will flow out of the up functions shuttle valve once the hose assembly
112. weldment 3 11 Cut two cable ties which are securing hose assemblies 4 and 5 to back cylinder 6 12 While supporting back weldment 3 remove MA395900 four E rings 7 two clevis pins 8 and partially separate back cylinder 6 from cylinder Figure 4 11 Table Access brackets 9 Fold back section over onto seat section 4 Remove eight screws 4 and front inner shroud 5 from left and right hand inner shrouds 6 13 Tag hose assemblies 4 and 5 5 Remove screw 7 and wire clip 8 securing 14 Disconnect hose assembly 4 from back wires and hoses to base weldment 9 cylinder 6 Midmark Corporation 1997 SF 1555 Page 4 11 Printed in U S A SECTION IV MAINTENANCE SERVICE 15 Disconnect hose assembly 5 from back cylinder 6 16 Cut necessary cable ties and remove back cylinder 6 from table MA396100 Figure 4 13 Back Cylinder Removal Installation B Installation NOTE No sealant is required when connecting hose assem blies The back cylinder has an o ring in each port which seals the hose assemblies 1 Connect hose assembly 5 Figure 4 13 to back cylinder 6 2 Connect hose assembly 4 to back cylin der 6 3 Install back cylinder 6 on cylinder brackets 9 and secure with two clevis pins 8 through clevis A with four E rings 7 Midmark Corporation 1997 SF 1555 Return To Table Of Contents 4 Secure hose assemblies 4 and 5 to
113. with washer 8 screw 7 and nut 6 2 Connect two wires 4 to terminals of time delay relay 5 3 Install control cover 2 on control panel 3 and secure with two screws 1 Printedin U S A Return To Table Of Contents SECTION IV MAINTENANCE SERVICE MA397100 Figure 4 23 Time Delay Relay Removal Installation 4 Install motor cover assembly Refer to para 4 2 5 Plug table power cord into outlet 4 17 Capacitors Removal Installation A Removal 1 If possible raise FOOT UP function all the way up 2 kb Unplug table power cord from outlet 3 Remove four screws 1 Figure 4 24 and front outer shroud 2 from left and right hand outer shrouds 3 PES CA397200 4 If necessary to gain access to capacitors Figure 4 24 Capacitors Removal Installation remove eight screws 4 and front inner shroud 5 from left and right hand inner shrouds 6 WARNING A capacitor contains stored electricity Never touch terminals of a capacitor even if power has been shut off or disconnected b Cut cable tie A securing wires to capacitor 7 6 Using a screwdriver pry tab B of capacitor mounting bracket 8 upward and remove capacitor 7 from capacitor mounting bracket Always discharge capacitor before touching capacitor terminals or wires Failure to comply with these instruct
114. y Complete Refer to para 4 9 Remove filler cap A and drain any remaining oil into drain pan See Figure 4 9 Using a wrench to hold male connector 1 Figure 4 9 stationary loosen jam nut B of elbow 2 Disconnect male connector anti cavitation solenoid valve C from elbow Remove down functions shuttle valve 3 and up functions shuttle valve 4 from motor pump 5 Remove two screws 6 lockwashers 7 and motor base 8 from motor pump 5 B Installation 1 2 3 Page 4 8 Install motor base 8 on motor pump 5 and secure with two lockwashers 7 and screws 6 Install up functions shuttle valve 4 and down functions shuttle valve 3 on motor pump 5 Coat threads of male connector 1 with pipe thread tape or sealant Printed in U S A Return To Table Of Contents SECTION IV MAINTENANCE SERVICE NOTE Reservoir will come off hard Use a screwdriver to pry reservoir off of manifold block but make sure not to damage o ring 3 Remove four screws 1 Figure 4 10 and reservoir 2 from manifold block 3 4 Remove magnet 4 from strainer 5 b Remove four screws 6 and pump housing 7 from manifold block 3 6 Remove pump gear 8 and woodruff key 9 from shaft of rotor assembly 10 7 Remove four screws 11 and motor housing 12 from manifold block 3 8 Push rotor assembly 10 inward toward manifold block 3 then remov
115. yringe or suction device remove all oil from the reservoir 2 repeated malfunctions of hydraulic compo 6 nents oil other than light weight mineral oil has 7 been added to the hydraulic system causing the table to malfunction or perform erratically Refill reservoir 2 with light grade mineral oil Disconnect hose A from down functions shuttle valve 3 and place end of hose in drain pan A Flushing Procedure 8 Raise TABLE UP BACK UP TILT UP and FOOT UP functions all the way up while 1 Lower TABLE DOWN BACK DOWN TILT Ven way up whi making sure to keep refilling reservoir 2 with DOWN and FOOT DOWN functions all the way ight sede 2 down i 9 Connect hose A to down functions shuttle 2 Remove motor cover assembly Refer to valve 3 MA398300 Figure 4 35 Hydraulic System Flushing Procedure Midmark Corporation 1997 SF 1555 Page 4 33 Printed in U S A SECTION IV MAINTENANCE SERVICE 10 Disconnect hose B from up functions shuttle 11 12 Midmark Corporation 1997 SF 1555 7 kb bd valve 4 and place end of hose in drain pan Lower TABLE DOWN BACK DOWN TILT DOWN and FOOT DOWN functions all the way down while making sure to keep refilling reservoir 2 with light grade mineral oil as necessary Connect hose B to up functions shuttle valve 4 Repeat steps 7 thru 12 until oil being removed is clear and contain

MIDMARK 319 O/R Table Service Manual

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