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SERVICE MANUAL - Charles L. Crain

1. NOTE There are two 2 amp fuses and two 10 amp fuses located in a plastic bag taped to the out side of the Control Box When one these fuses is used it should be replaced with another and the bag re taped to the outside of the Control Box The fuses found in the two top fuse holders are for chair operation and the fuses found in the bottom two fuse holders are for the AC Receptacle located on the back of the chair To replace the fuses refer to Figure 3 4 and proceed as follows 1 Open the Fuse Holder by using a flat blade screwdriver inserted into the slot on the end of the fuse holder 2 Rotate the Fuse Holder counter clockwise See Figure 3 4 The Fuse Holder has a spring loaded mechanism and should pull right out 3 Visually inspect and replace the blown fuse with the appropraite spare fuse located in the bag taped to the outside of the Control Box In addition to replacing the blown fuse a new spare should be placed in the bag and re taped to the outside of the Control Box 4 Replace the rear chair housing 5 Reconnect the electrical power to the chair BE Use Screwdriver and rotate the Fuse Holder counter clockwise to remove Pull Fuse Holder back to remove Replace worn Fuse with a new one in bag and tape it to outside cover of Control Unit Replace damaged
2. 2 INSERT SCREW 021 621 040 INTO LEFT VERTICAL SUPPORT ITEM 37 TO SUPPORT MAIN LINK ASSEMBLIES REMOVE AFTER INSTALLING HYDRAULIC SYSTEM POSITION MAIN LINK TIE PLATE ITEM 48 SO THE FOUR HOLES ARE CLOSEST TO THE UPPER EDGE ATTACH LIMIT SWITCH CABLE ITEM 31 TO LIFT LIMIT BOARD ITEM 36 J2 CONNECTOR AND CONTROLLER BOX ITEM 30 SEAT CONNECTOR 8 gt L 018 016 030 AIR OIL HYDRAULIC ENLUBOL 3 8 16 x 6 GRADE 5 BOLT ZINC PLATED 8 32 x 3 8 PAN HD PHIL INT WASHER ZINC AIR 4 021 560 042 8 021 619 058 EEN gt 0 32 x 1 2 HEX SOC CAP SCW BL OX 0 32 x 1 1 4 SOC HD CAP SCW BL OX 1 4 19 10 021 619 080 Ef 20 8 021 624 017 4 40 x 1 4 BHHS CAP SCW BL OX 21 6 021 624 133 3 8 16 x 1 1 4 BHHS SOC BL OX 22 4 021 624 135 3 8 16 x 1 1 2 BHHS SCW BL OX 23 4 021 635 082 1 4 20 x 3 4 FHHS CAP SCW BL OX 24 6 021 635 131 3 8 16 x I FLAT HD CAP SCW BL OX 25 64 023 001 049 1578 DIA BALL GRADE 25 CHROME STEEL 26 1 023 005 003 THRUST BEARING TORRINGTON 27 034 001 010 SS EMERGENCY STOP CALIPER BRAKE 28 034 003 035 55 MALE ELBOW 1 8 27 NPTF TO 4 JIC 29 039 004 036 BRAKE DISK 6 312 DIA W HOLES 30 1 102 001 212 D JASSY CONTROLLER MAX
3. Table 1 1 Chair Specifications SPECIFICATIONS Electrical Requirements Input 115 VAC 10 60 Hz 7 75 Amps 115 VAC 10 60 Hz 7 5 Amps Fuse 2 ea 5 x 20 MM 250V 10 Amp Time Delay 2 ea 5 x 20 MM 250V 2 Amp Time Delay w optional Solarlite w o optional Solarlite 35 5 x 26 90 17 x 66 04 cm Range of Chair Back Angle Adjustment Maximum Upright Position 90 Above Horizontal Maximum Reclined Position Trendelenberg Position 10 Below Horizontal Chair Seat Angle Fixed 3 Tilted Back Range of Seat Elevation 17 43 18 cm Minimum Elevation 19 48 26 cm LX 21 53 34 cm Maximum Elevation 36 91 44 cm 38 96 52 cm Required Working Space for Chair Upright Position 37 25 X 27 25 94 61 cm X 69 21 cm Reclined Position 75 X 27 25 190 5 cm X 69 21 cm Environmental Factors Storage Transport and Operation Operating Temperatures 4509 F 10 C to 90 F 32 C Storage Temperatures 20 F 28 C to 4150 F 65 C Non condensing Relative Humidity Operating 2096 to 8596 Storage 2096 to 8596 GLOBAL SMR Maxichair Model 2700 1 SURGICAL CORPORATION 2 Service Manual I amp 39 75 100 96 cm 75 190 5 cm e 20 26 50 66 0 cm 19 48 3 cm 18 33
4. 39 Figure 4 3 Lower Skeleton Exploded 5 41 Figure 4 4 Lower Skeleton Exploded Parts continued 42 ii SMR 2700 MAXICHAIR GLOBAL SURGICAL CORPORATION Precautions and Warnings This symbol on the product is an attention symbol alerting the user to to read the Owner s Manual for important installation or operating instructions or important safety information which should be read carefully This symbol on the product indicates a potential electrical shock hazard and A alerts the user to read the Owner s Manual for important safety information on how to avoid the hazard 1 This symbol appearing in the illustrations corresponds to the numbered step in the text CAUTION CAUTION CAUTION CAUTION CAUTION CAUTION CAUTION NOTE Disconnect all electrical power from the chair before attempting to service the internal components of the chair There is a risk of electrical shock resulting in injury or death if the power is not disconnected Never adjust the Pressure Relief Value to the fully seated clockwise position SEVERE DAMAGE to the hydraulic pump can result The maximum adjustment is 3 4 turn from the fully seated clockwise position Failure to make sure Fuseholder is properly snapped back into the secure position can result in intermittent function of the chair Upon exiting the chair if the occupant places his or her weight on ends
5. 02 cm r lt gt gt 13 33 02 lt 37 5 95 25 _ 37 25 94 62 cm _ gt Figure 1 1 Overall Dimensions 1 2 Optional Equipment Optional accessories for the SMR MaxiChair Select S2700 Examination Chair include a footswitch to supplement the controls on the sides of the chair back The SMR SOLARLITE is available and can be installed on an ambidextrous bracket to accommodate left handed or right handed operators SMR Maxichair Model 2700 GLOBA L SURGICAL CORPORATION Service Manual Section 2 Service and Warranty Information 2 1 Warranty Information Global Surgical Corporation warranty information is printed on the back side of your invoice Please refer to your invoice for specific terms and conditions which apply to the particular product you purchased Should you experience any malfunction you should contact the Global Surgical Technical Services Department for assistance 2 1 1 Technical Services Department If you have questions which are not covered in this manual please call the Global Surgical Technical Services Department as listed below e From St Louis MO 636 861 5234 or 636 861 5245 e From elsewhere in the U S A call 1 800 861 3610 e From Outside the U S A either call 1 636 861 5234 or 1 636 861 5245 e FAXnumber 1 636 861 52
6. Circuit Board XXX XXX XXX Bezel 107 005 222 Figure 4 4 Replacing Membrane Switches 4 3 1 Replacing the Membrane Switch Ribbon Cable The Membrane Switch panels located on either side of the 52700 Maxi Chair Select are connected to the Maxi Select Controller 102 001212 by two Ribbon Cables The left side Ribbon Cable is the longest It is connected to the left side Membrane Switch and travels down to the Maxi Select Controller 102 001212 The right side Ribbon Cable XXX XXX XXX ajoins the left side cable with a cable connector inside the chair back A third Ribbon Cable XXX XXX XXX connects the footpedal connector to the left side cable with a cable connector in the lower framework of the chair next to the Maxi Select Controller 102 001212 The footpedal cable must be routed up through the Cord Grommet in the center of the Emergency Stop Caliper Brake Disk 039 004 036 before it can be connected to the ribbon cable 1 Testing for faulty Ribbon Cable Visually inspect and test the Membrane Switches on each side to ensure it is functioning properly If membrane switches are selected and are known to be functional and the chair doesn t respond the cause could be a ribbon cable a Remove electrical power from the 52700 Maxi Chair Select b Start by disconnecting the right side Ribbon Cable from the left side Ribbon Cable c Disconnect the Left Side Ribbon Cable from the Membrane Switch Con
7. Fuse and return Fuse Holder to Control Unit Figure 3 4 Replacing Fuses Chairs with s n 1548 and above 8 SMR Maxichair Model 2700 L SURGICAL CORPORATION Service Manual 3 3 Maxi Select Controller Features The Maxi Select Controller on the SMR 2700 Maxichair can be used to service and troubleshoot the chair s electrical system Refer to Figure 3 5 and Table 3 1 to proceed 1 Remove the cover to the Maxi Select Controller by using a Phillips screwdriver to remove the Phillips screws attaching it to the controller box Switch Panel Pump On Maxi Select Controller P Back Lighting ON LED Phillips Head Screw 3 places Cycle Enable Jumper 5 VDC LED Limit Switches ON LED d Q E Brake ON ND Controller Cover Valve LED Brake OFF Valve LED Not Used Seat Down Valve LED Back Up Valve LED Back Down Valve LED PC Board Seat UP Jumper Jumper Holder NOTE Controller with Rectangular Fuse Holder s n 1001 thru 1547 shown Figure 3 5 Maxi Select Controller Components 3 3 1 Status LED s 1 Pump ON LED This LED is marked PUMP on the circuit board This LED will illuminate time a basic function of the chair requires hydraulic pressure The following chart shows the functions that require hydraulic pressure GLOBAL SMR Maxichair Model 2700 9 SURGICAL CORPORATION Service Man
8. Solarlite bracket using the 4 hex socket cap screws removed in Step 1 of the removal procedures 19 Cycle the chair to ensure that it is operating smoothly Make any adjustments necessary GLOBAL SMR Maxichair Model 2700 31 SURGICAL CORPORATION 4 7 Tools Required 32 Service Manual Emergency Stop Caliper Brake Replacement 5 8 Open end Wrench 3 8 Ratchet with 5 8 Socket 1 4 Hex Wrench Pin Extractor No 1 Phillips Screwdriver Should the SMR 2700 Maxi Chair Select fail to stop it s rotation when the brake is applied it may be necessary to replace the Emergency Stop Caliper Brake 034 001 010 Refer to Figure 4 13 and proceed as follows Removal The step numbers in the below instructions will correspond with the bubble numbers in the referred illustrations 1 Using the Membrane Switch on the sides of the chair set the chair to its lowest vertical position 2 Disconnect the electrical power from the chair 3 Remove the protective plastic caps then use the No 1 Phillips screwdriver to remove the six screws from the rear chair housing Refer to Figure 4 1 4 Remove the rear chair housing 5 Use the 5 8 open end wrench and remove the hydraulic line from the elbow connection on the brake assembly 6 Remove the Power Cable Connector from the rear of the Maxi Chair Select Controller The Power Cable Connector is the bottom of 3 similar plugs on the Maxi Chair Select Controller 7 Remove the Ribbo
9. of both of the Armrests at the same time and presses downward to raise themselves up the Pivot Bracket attachment screw may break The only time a jumper should be placed in JUMPEH CYCLE ENABLE position is when the limit switch flags are being adjusted or when the chair is being placed into cycle test Do not overtighten the adjustment screw Overtightening adjustment screw may cause pin in headrest assembly to break removing all friction Slight adjustments to the manifold can translate to major changes in the performance of the hydraulic system Make small adjustments check the performance and make further adjustments as necessary There have been cases where the 1 4 pin has also broken from the weight being applied to the front of both Armrests These cases are rare but have prompted a design change to eliminate this situation In the event that there is a burr on the Armrest Shaft or if the 5 16 pin is broken inside the Pivot Arm Bracket the shaft may not slide through the bracket and may have to be cut in order to remove it Should this happen use a hacksaw and cut through the shaft on both sides of the Pivot Arm Bracket and pull out from both sides When installing a new Ribbon Cable Assembly be sure not to allow the cable to become kinked or pinched by any of the cable clamps Tap Lubricant 3 in 1 Oil or equivalent is absolutely necessary in this proce dure to prevent the tap from breaking off in the casting There ar
10. 1 is mounted between the chair base and the lower skeleton assembly It s primary purpose is to raise and lower the chair The operation of the Lower Hydraulic Cylinder should be quiet and smooth throughout its cycle If the chair should vibrate or jerk suddenly during the travel from full upright to the lowest position or visa versa this could signal a problem with the hydraulic cylinder The first step would be to check the Hydraulic Fluid Reservoir to ensure it is filled with the prescribed amount of hydraulic fluid The Reservoir should be full when the seat is down Next check the hydraulic hose that supply fluid from the reservoir to the Lower Hydraulic Cylinder If these visual checks are negative it may suggest the Lower Hydraulic Cylinder needs replacing To replace the hydraulic cylinder proceed with the steps listed below and refer to Figure 4 6 Removal The step numbers in the below instructions will correspond with the bubble numbers in the referred illustrations 1 Using the Membrane Switch on the sides of the chair set the chair to its upright and lowest vertical position 2 Disconnect the electrical power from the chair 3 Remove the six protective plastic caps then use the No 2 Phillips screwdriver to remove the six screws from the front and rear chair housing Refer to Figure 4 1 4 Remove the front and rear plastic chair housing 5 Use the 5 8 open end wrench and loosen the hydraulic line to the elbow connection
11. 84 The staffing hours for the Global Surgical Technical Services Department are Monday through Friday from 8 00 am to 5 00 pm Central Time 2 1 2 Internet Access The Global Surgical Technical Services Department can be reached during non staffing hours by using the World Wide Web at http www globalsurgical com The Global Surgical Technical Services web site has several FAQ s frequently asked questions about products and services The Global Surgical Technical Services Department can also be reached by email at the following address techservices globalsurgical com 2 1 3 Service Information In the event of any malfunction you should immediately contact the Global Surgical Technical Services Department for assistance A Customer Identification Number and Customer Order Number will be needed when contacting the Technical Services Department These numbers are printed on your invoice To save time in the event service is needed record these numbers in the spaces provided inside the front cover of this manual A Return Authorization Number must be obtained from the Global Surgical Technical Services Department prior to returning the product for repair The following information must accompany all returned units 1 Your Name Address and Telephone Number 2 The Return Authorization Number 3 A description of the problem 4 Proof of the date of shipment Ship or otherwise return the product with transportation and insurance cost
12. CH 55 1 107 037 223 B RETAINING FLANGE PUMP MACH 56 1 113 003 673 B BASE PLATE PAINTED N 57 007 014 019 SS CONN 3 POS PLUG t 58 018 015 001 SS STRAIN RELIEF 1200 t 59 2 018 015 016 SS STRAIN RELIEF 1150 E 60 1 018 015 020 SS CORD RETAINING CLAMP 61 1 021 619 105 SS 5 16 18 x 1 2 SKT HEX SCREW BLK OX E N 62 102 025 027 ASSY LIFT HOSE 63 107 022 123 _ GUARD CONNECTOR ENCLOSURE MACH 40 SMR Maxichair Model 2700 L SURGICAL CORPORATION Service Manual yo 8 PLCS 22 4 PLCS 5 52 NS namn LS W I ca 9 4 BOY SMR Maxichair Model 2700 41 SURGICAL CORPORATION 60 p E 67 20 2 PLCS S 2 PLCS 42 5 Maxichair Model 2700 Service Manual Not Shown GL SURGICAL CORPORATION Index A Adjustment Chair Back Down 5 Chair Back up 5 Heardres Friction 12 Seat Down 5 Seat Up 5 Armrests 17 Assembly lower skeleton 22 B Bar Linkage 18 Bellows 13 Bezel Membrane Switch 19 Bracket Armrest 17 Pivot 17 Pivot Arm 18 Brake Hydraulic 20 24 26 bushing 18 C Cable Power Cord 27 Power Supply 19 cable fiber optic 19 power 19 Calfrest 30 Calfrest Flap 30 31 Chair Speci
13. I SELECT N N 102 004 601 B ASSY LIMIT SWITCH SEAT 32 1 102 004 604 JASSY INTERCONNECT FOOT SWITCH 33 1 102 007 058 B JASSY CABLE POWER ENTRY 34 1 102 025 026 C ASSY HYDRAULIC POWER PACK UNIT S 35 102 025 028 B ASSY BRAKE HOSE 36 1 102 032 027 JASSY LIFT LIMIT BOARD MOUNTING PLATE 37 1 102 032 028 SWIVEL PLATE 38 1 102 032 029 JASSY LEFT VERTICAL SUPPORT 39 1 102 032 030 JASSY RIGHT VERTICAL SUPPORT 40 1 102 032 031 C LIFT CYLINDER 41 1 102 032 032 JASSY UPPER MAIN LINK LEFT 42 1 102 032 035 JASSY LOWER MAIN LINK LEFT 1 102 032 034 B JASSY UPPER MAIN LINK RIGHT 44 1 102 032 035 JASSY LOWER MAIN LINK RIGHT 45 1 102 032 036 JASSY FRONT MAIN 4 BAR PLATE 1 107 020 213 SWIVEL HUB MACH 2 107 020 215 BRAKE MOUNTING TUBE 48 1 107 027 715 B TOP BASE PLATE MACH S 49 107 027 718 B MAIN LINK TIE PLATE MACH 50 2 107 027 719 LIFT CYCLINDER MOUNTING CLEVIS MACH s 2 107 027 735 B LIFT LIMIT FLAG MACH 52 1 107 028 104 C BASE HUB MACH 107 028 107 POWER ENTRY MODULE MACH 54 1 107 037 195 B CORD GROMMET MA
14. L CORPORATION Service Manual Chair Upright Under Seat Right Side Back Chair Upright Under Seat Left Side Back Under Seat Left Front Chair Reclined Under Seat Right Side Back Under Seat Right Front Apply grease to Back Up Down Shaft as indicated by arrows Figure 3 9 Lubricating the Back Up Down Slide Shaft Assemblies 16 SMR Maxichair Model 2700 GLOBAL SURGICAL CORPORATION Service Manual Section 4 Component Removal and Replacement 4 1 Maxi Select Controller 102 001 212 PC Board Replacement The Maxi Select Controller 102 001 212 on the SMR 2700 Maxi Chair Select can be used to service and troubleshoot the chair s electrical system If adjustments to the chair s performance cannot be completed using the steps in the previous section the Maxi Select Controller Printed Circuit Board may need to be replaced Refer to Figure 3 5 and Table to proceed Tools Required N 8 9 Wrench No 1 Phillips Screwdriver Chair L Housing p ousing Figure 4 1 Removing the Rear Chair Housing Disconnect the electrical power from the chair Remove the protective plastic caps then use the No 1 Phillips screwdriver to remove the six screws from the rear chair housing Refer to Figure 4 1 Remove the rear chair housing Remove the cover to the Maxi Select Controller 102 001 212 by using a No 1 Phillips screwdriver to remove the 3 screws attaching it to the control
15. Replacement 3 1 Manifold Adjustments 3 2 Fuse Replacement 3 2 1 Fuse Replacement for Chairs with s n 1001 thru 1547 3 2 2 Fuse Replacement for Chairs with 5 1548 and above 3 3 Maxi Select Controller Features 3 3 1 Status LED A VER Pot 3 3 2 Maxi Select Controller Features and Functions 3 3 3 Maxi Select Controller Set up Procedures 3 4 Headrest Friction Adjustment 3 4 1 Headrest Positioning 3 5 Ballet le EE 3 5 1 Removal and Installation of Covers 3 5 2 Lubrication of Back Up Down Slide Adjustment Section 4 Component Removal and Replacement 4 1 Maxi Select Controller PC Board Replacement 4 2 Armrest Shaft Replacement 421 Early Production 5 4 2 2 Current Production Models 4 3 Membrane Switch Replacement 4 3 1 Replacing the Membrane Switch Ribbon Cable 4 4 Lower Cylinder 4 5 Upper Cylinder 4 6 Hydraulic Power Pack Unit Assembly Replacement 4 7 Emergency Stop Caliper Brake Replacement 4 7 1 Removal Replacement of Power Cord Cable 4 8 Installing
16. Ribbon Cableis faulty it should be removed and replacedwith a new one Refer to Figure 4 5 and proceed as follows a Disconnect electrical power from the 2700 Maxi Chair Select b Disconnect the right side Ribbon Cable from the connector on the left side Ribbon Cable c Disconnect the left side Ribbon Cable from the Membrane Switch Panel on the chair back d Using the photos on the right remove c Footswitch the various cable clamps that attach M Connector the Ribbon Cable to the chair structure e Disconnect the Footswitch Ribbon Cable from the connector near the Maxi Select Controller 102 001 212 f Disconnect the cable from the Maxi Select Controller g Repeat steps b through f to install a new Ribbon Cable h Connect electrical power to the S2700 Maxi Chair Select and cycle the chair using both left nad right Membrane Switch panels and the Footswitch CAUTION When istalling a new Ribbon Cable Assembly be sure not to allow the emm cable to become kinked or pinched Fiaure 4 5 Replacina the Ri 5 by of the cable clamps gure 4 5 Replacing the Ribbon Cable GLOBAL SMR Maxichair Model 2700 23 SURGICAL CORPORATION MaxiSelect Controller Connector Service Manual 4 4 Lower Cylinder Replacement 24 Tools Required e 5 8 Open end Wrench e 3 8 Drive Ratchet No 2 Phillips tip Socket 3 8 drive 1 4 Hex Wrench The Lower Hydraulic Cylinder 102 032 03
17. SURGICAI CORPORATION CH R Model 2700 JL SERVICE MANUAL 1937135 HIVHOIXVIN When contacting Global Surgical Corporation for either Customer Service or Technical Service it will be helpful if you have your Customer Identification Number and your Customer Order Number available Please take a moment to record these numbers which are printed on your invoice on the spaces below Customer Identification Number Customer Order Number GLOBAL SURGICAL CORPORATION 3610 Tree Court Industrial Blvd St Louis MO 63122 1 800 861 3585 COPYRIGHT NOTICE Copyright 2001 Global Surgical Corporation No part of this publication may be copied photocopied reproduced translated or reduced to any electronic medium or machine readable form in whole or in part without the prior written consent of Global Surgical Corporation 3610 Tree Court Industrial Blvd St Louis MO 63122 Table of Contents Section 1 General Service Information 1 1 Chair Specifications 1 2 Optional Equipment Ret reet Section 2 Service and Warranty Information 2 1 Warranty Information 2 1 1 Technical Services Department 2 1 2 Internet Access d cose REDI 2 1 3 Service Information 2 1 4 User Comments Section 3 Component Removal and
18. Step 7 Connect the chair power cord NOTE Chair will start to move Release Child Safety Switch J8 Press Seat Up membrane switch Unplug chair power cord Wait 30 seconds and reconnect the power cord Press Seat Back to 75 degrees Reference 0 degrees from base See Figure 3 6 With the seat at 75 degrees press and hold Memory Position 1 on the Membrane Switch Panel until the backlight on the panel blinks 12 Press Seat Up until housing is 17 or more from the base and then press Seat Back to set back to 0 degrees parallel to floor See Figure 3 6 13 With the back at 0 degrees press and hold Memory Position 2 on the Membrane Switch Panel until the backlight on the panel blinks 14 Press Auto Return 15 Press Seat Back to 55 degrees 16 Press Seat Up until housing is 0 degrees parallel to floor The top of the housing should measure approximately 15 to the base 17 Press and hold Memory Position 3 on the Membrane Switch Panel until the backlight on the panel blinks 18 Unplug chair 19 Move Jumper Cycle Enable JP3 to Jumper Holder JP4 20 Connect the chair power cord 21 Test all factory presets 75 180 and crash 22 Set Memory Positions 1 2 and 3 to different values Move the chair to a position and press Memory Position 1 until the backlight on the panel blinks Do the same with Memory Positions 2 and 3 23 Unplug chair Wait one minute 24 Connect the chair power cord 25
19. Test all memory positions and factory presets 26 Test complete O N 12 5 Maxichair Model 2700 GLOBA L SURGICAL CORPORATION Service Manual NER Child Safety Jumper Cycle Enable JP3 Jumper Holder JP4 0 Parallel to Figure 3 6 MaxiSelect Controller Set up GLOBAL SMR Maxichair Model 2700 13 SURGICAL CORPORATION Service Manual 3 4 Headrest Friction Adjustment Occasionally the headrest may need to be tightened The headrest mechanism relies on friction to maintain a secure position To tighten this adjustment refer to Figure 3 7 and proceed as follows 1 Unlock the headrest and move it to the extreme upward and forward position Leave the headrest unlocked 2 Using a 3 16 inch hex wrench loosen the setscrew on the bottom of the handle assembly 3 Use a large flat blade screwdriver tighten the adjustment screw in the bottom of the handle for the desired friction CAUTION Do not overtighten the adjustment screw Overtightening adjustment screw may cause pin in headrest assembly to break removing all friction 4 Re tighten the setscrew Setscrew Screwdriver Ak Slot lL Adjustment Screw Bottom of Arm Figure 3 7 Manual Headrest Friction Adjustment 3 41 Headrest Positioning To a
20. ce Manual R Reservoir Hydraulic Fluid 22 Return Authorization Number 3 Ribbon Cable 20 26 rotational lock hydraulically actuated 1 S 2700 MaxiChair Select 21 30 32 Seat Cushion 30 31 Shaft Armrest 17 18 Pivot 17 Shaft Assembly Back Up Down 13 Side Panels 32 SMR Solarlite 2 Solarlite Optional SMR 17 Switch Membrane 19 20 26 32 Switches Membrane 13 Swivel Plate Assembly 25 T Technical Services Department 3 Trendelenberg Position 1 30 Tube Brake Mounting 26 V Valve Pressure Relief 5 W Warranty Information 3 World Wide Web 3 GLOBAL SURGICAL CORPORATION
21. d on the side of S2700 Maxi Chair Select Select or the Footpedal raise the chair at least 6 from floor and bring the chair to the maximum reclined position Trendelenberg Position 2 Using the No 1 Phillips Screwdriver remove the two screws beneath the Chair Seat to remove the Seat Cushion See Figure 4 18 3 Using the No 1 Phillips Screwdriver remove the three screws beneath the Calfrest to remove it from the chair assembly See Figure 4 18 4 Complete the removal by lifting upward on each side of the Calfrest Flap unlocking the Velcro patch on each side See Figure 4 18 SMR Maxichair Model 2700 GLOBA L SURGICAL CORPORATION Service Manual Removing 3 Phillips head Screws to remove Calfrest Removing Phillips head Screws only 1 of 2 shown to remove Seat Cushion Removing Calfrest by unlocking Velcro squares that secure it under Chair Cushion Securing new Calfrest by locking Velcro squares on flap with those on chair NOTE Chair has been returned to FULL Upright Position Figure 4 18 Removal and Installation of Calfrest Installation of New Calfrest 5 6 Using the No 1 Phillips Screwdriver replace the three screws beneath the Calfrest to secure it to the chair assembly See Figure 4 18 Using the Membrane Switches located on the side of 52700 Maxi Chair Select Select or the Footpedal bring the chair to the full upright position Complete the installation pressing downward on the flaps on each s
22. d wrench and connect the hydraulic line to the elbow connection on the lower end of the Lower Hydraulic Cylinder assembly SMR Maxichair Model 2700 GLOBA L SURGICAL CORPORATION 9 10 Service Manual Reapply electrical power to the chair Using the Membrane Switch on the sides of the chair slowly cycle the hydraulic cylinder until the shaft end reaches the Mounting Clevis Slide the clevis pin through the mounts and upper portion of the hydraulic cylinder and secure with the hairpin cotter pin Reinstall the rear chair housing Use the No 1 Phillips screwdriver to install the six screws from the rear chair housing Reinstall the protective plastic caps Refer to Figure 4 1 Reconnect the electrical power from the chair Cycle the chair to ensure that it is operating smoothly Make any adjustments necessary Tie Plate 107 027 718 Swivel Plate 102 032 028 Hairpin Cotter Pin 2 Lower Hydraulic Cylinder 102 032 031 O0 Figure 4 6 Replacing Lower Hydraulic Cylinder GLOBAL SMR Maxichair Model 2700 25 SURGICAL CORPORATION Service Manual 4 5 Upper Hydraulic Cylinder Replacement 26 Tools Required 1 2 Open end Wrench e 9 16 Open end Wrench e 5 8 Open end Wrench e 11 16 Open end Wrench e 3 8 Hex Wrench e 5 32 Hex Wrench No 2 Phillips Screwdriver The Upper Hydraulic Cylinder 034 001 009 is mounted beneath the chair seat The only function of the cylind
23. djust the position of the Multi Position Manual Headrest refer to the Owner s Manual Global Surgical part number 110 015 017 14 SMR Maxichair Model 2700 GLOBA L SURGICAL CORPORATION Service Manual 3 5 Lubrication 3 5 1 Removal and Installation of Covers Tools Required No 1 Phillips Screwdriver e Flat Blade Screwdriver 1 Disconnect the electrical power from the chair Remove the protective plastic caps then use the No 1 Phillips screwdriver to remove the six screws from the rear chair housing Refer to Figure 3 1 3 Remove the rear chair housing Chair L p Housing p Beie ousing Figure 3 8 Removing the Rear Chair Housing 4 Remove the side panels 5 Disconnect and lower the Bellows exposing the chair structure 3 5 2 Lubrication of Back Up Down Slide Shaft Assembly To ensure that the S2700 Maxichair Select performs as expected the Back Up Down Slide Shaft Assemblies must be lubricated periodically 6 Apply a very thin coating of Extreme Pressure Lube grease to the Back Up Down Slide Shaft Assembly on both sides of the chair Refer to Figure 3 9 on Page 12 and follow the steps below 7 Apply the grease as indicated by the arrows 8 Using the Membrane Switches cycle the chair through it s various operations to ensure the Slide Shaft Assemblies are moving smoothly 9 Reattach the Bellows 10 Replace the Side Panels and the Rear Chair Housing GLOBAL SMR Maxichair Model 2700 15 SURGICA
24. e two fuses located in each fuse holder The fuse in the front or closest to the cover is a spare fuse The fuse that will need replacing is in the back of the clip GLOBAL SMR 2700 MAXICHAIR iii SURGICAL CORPORATION Precautions and Warnings The Rectangular Fuse Holders were replaced by Round Fuse Holders on chairs with serial numbers 1548 and above The Hound Fuse Holders require a flat blade screw driver to open The are two 2 amp fuses and two 10 amp fuses located in a plastic bag taped to the outside of the Control Box When one these fuses is used it should be replaced with another and the bag re taped to the outside of the Control Box On some chairs if the Pressure Relief Valve was adjusted too far clockwise excessive pressure could be created exceeding the pump rating This could result in hesitation or chatter in chair movement The Hydraulic Pump does not activate during SEAT DOWN movement If chatter is present in BackUp or Back Down movement it may be related to the input valves being adjusted all the way flush During all repair or adjustments to the chair with the back cover off tthese valaves should be adjusted to flush The MaxiChair Select Controller is Multitasking which means a Seat Function can take place at the same time as a Back Function If
25. ed to remove the Power Cord Plug from the the power cord iv SMR 2700 MAXICHAIR GLOBAL SURGICAL CORPORATION Service Manual Section 1 General Service Information 1 1 Chair Specifications The SMR Maxi Chair Select 2700 Examination Chair is designed to provide a comfortable adjust able platform for conducting routine examinations The chair is adjustable from an upright position 90 above horizontal to a slight decline Trendelenberg position of 10 below horizontal The arms are fully articulated to move with the chair position The manual headrest may be raised or lowered and moved forward or backward as well as locked into the position set The arms swing up and out of the way and the footrest folds up for easy patient entry and exit from the chair The chair is equipped with illuminated solid state controls located on both sides of the chair back for easy access A Child Safety Disable Feature disables the solid state controls when the chair is left unattended The chair may be rotated manually and locked into position using an hydraulically actuated rotational lock The control for the rotational lock is located on each of the control panels on both sides of the chair back The chair is powered by a smooth quiet hydraulic motor driven by a microprocessor control board Table 1 1 below lists the chair specifications and Figure 1 1 on the following page shows the clearance requirements and maximum angles possible for the chair
26. elow instructions will correspond with the bubble numbers in the referred illustrations Reservoir Tank Add Oil Here Figure 4 12 Replacing the Hydraulic Power Pack Unit Assembly 30 SMR Maxichair Model 2700 GLOBA L SURGICAL CORPORATION Service Manual 1 Using the Membrane Switch on the sides of the chair set the chair to its lowest vertical position This will allow the hydraulic fluid from the upper and lower cylinders to return to the reservoir 2 Disconnect the electrical power from the chair 3 Remove the protective plastic caps then use the No 1 Phillips screwdriver to remove the six screws from the rear chair housing Refer to Figure 4 1 4 Remove the rear chair housing 5 Support the front of the chair frame with a 2 X 4 wooden block to prevent the chair from falling to a lower height when the Manifold Assembly is disconnected 6 Use the 5 8 open end wrench and loosen the four hydraulic lines to the elbow connections on the left side of the Manifold Assembly Mark the hydraulic lines so they can be reconnected in the same positions on the new manifold 7 Wrap a shop towel around the fittings and remove the hydraulic lines allowing the towel to catch any excess hydraulic fluid Disconnect the Power Cable from the MaxiSelect Controller Disconnect eight electrical leads from the Manifold to the MaxiSelect Controller 0 Using the 1 4 hex wrench remove the th
27. ement of the Armrest Shaft and Pivot Bracket 20 SMR Maxichair Model 2700 GLOBAL SURGICAL CORPORATION Service Manual 4 3 Membrane Switch Replacement The Membrane Switch XXX XXX XXX panels located on either side of the 52700 Maxi Chair Select control the various functional operations of the chair as well as some of the diagnostics The Membrane Switches are pressure activated Should the switch fail to preform a desired function they may need to be replaced The Membrane Switches can be replaced as a unit with the Switch Bezel or can be replaced separately Tools Required Hex Wrench 1 Phillips Screwdriver Removal 1 Remove the four hex socket head screws attaching the Headrest and the optional Solarlite to the back of the chair and set them aside Pry off the 4 plastic caps covering the screws on the back covering of the chair Remove the four Phillips screws that secure the back cover to the chair Remove the chair back cover and set it aside Unplug the power cable and the fiber optic cable from the back side of the membrane switch Using the No 1 Phillips screwdriver remove the 2 button head screws and remove the Membrane Switch Bezel from the chair Installation a Membrane Switch and Bezel 7 Secure the new Membrane Switch and Bezel to the chair side using a No 1 Phillips screwdriver replacing the 2 button head screws 8 Reattach the Fiber Optic Cable to the appropria
28. er is to operate the chair back by controlling its movement from vertical to 10 degrees below horizontal Prior to cylinder replacement check the Hydraulic Fluid Reservoir to ensure it is filled to the prescribed limit The reservoir should be near full when the seat is in the full down position Listen to the pump motor when moving the chair back with the Membrane Switches The operation of the Upper Hydraulic Cylinder should be quiet and smooth throughout its cycle Any vibration or shuddering during the cycle may indicate problems with the Upper Hydraulic cylinder Check for visible leaks any of the hydraulic lines to the Upper Hydraulic Cylinder If no leaks are found replacement of the Upper Hydraulic cylinder may be necessary To replace the Upper Hydraulic cylinder proceed with steps listed below Removal The step numbers in the below instructions will correspond with the bubble numbers in the referred illustrations 1 Using the Membrane Switch on the sides of the chair set the chair back to horizontal and raise the chair to its most vertical height 2 Disconnect the electrical power from the chair 3 Remove the six protective plastic caps then use the No 2 Phillips screwdriver to remove the six screws from the front and rear chair housing Refer to Figure 4 7 Remove the plastic front and rear chair housing Remove the four protective caps then use the No 2 Phillips screwdriver to remove the four screws from the upper
29. fications 1 Chair Swivel Plate 26 Clevis Mounting 22 clip 18 E 18 Connector Power Cable 26 Ribbon Cable 26 28 Controller Maxi Select 6 7 15 26 28 GLOBAL SURGICAL CORPORATION Service Manual Cord Grommet 20 Covers Chair 13 Customer Identification Number 3 Customer Order Number 3 Cylinder Lower Hydraulic 22 D Disable Feature Child Safety 1 Disk Brake 26 E Emergency Stop Caliper Brake Assembly 26 28 F fluid hydraulic 22 25 Footpedal 30 31 footswitch 2 Fuse Holder 6 H Headrest 12 17 headrest manual 1 Housing Rear Chair 4 6 13 15 17 22 23 25 26 29 Hub Swivel 26 Hydraulic Cylinder 22 K Keyway Power Cord Plug 28 Kit Retrofit 17 L LED 5 VDC 8 SMR Maxichair Model 2700 43 Index Back Down Valve 8 Back Up Valve 8 Brake Off 8 Brake On 8 Limit Switches On 8 Pump On 7 Seat Down Valve 8 Seat Up Valve 8 line hydraulic 26 Manifold 4 Manifold Assembly 25 Maxi Select Controller 10 20 21 29 MaxiChair Select 1 13 Membrane Switch 21 30 31 Mode Child Safety 8 Cycle Test 8 Cycle Test Error 8 motor hydraulic 1 4 Mounting Clevis 22 P Panels Chair Side 13 PC Board Maxi Select Controller 15 16 pin clevis 22 Pin Extractor 27 Plate Chair Swivel 22 28 Plug Power Cord 27 28 Power Cord 26 Protective Cover 29 44 SWRBIMaxisnairMpael2700 Servi
30. gure 4 17 and proceed as follows to install the Protective Cover 1 2 3 4 Disconnect Electrical Power to the S2700 Maxi Chair Remove the protective plastic caps then use the No 1 Phillips screwdriver to remove the six screws from the rear chair housing Refer to Figure 4 1 Remove the rear chair housing Remove the two No 1 Phillips head screws from the side of controller opposite to where the Ribbon Cable Assemblies attach See Figure 4 17 Slide the Protective Cover carefully over the cables at the rear of the controller Install the Protective Cover aligning it with the two holes on the side of the Controller and attaching it with the two Phillips screws removed in Step 4 Reinstall the chair housing components and chair back See Steps 2 and 3 above Reconnect Electrical Power to the S2700 Maxi Chair GLOBAL SMR Maxichair Model 2700 35 SURGICAL CORPORATION Service Manual Maxi Select Controller 102 001 212 Protective Cover XXX XXX XXX Figure 4 17 Installing Protective Cover on Maxi Select Controller 102 001 212 4 9 Calfrest Replacement 36 Should the Calfrest on the 52700 Maxi Chair Select Select become worn or damaged in such a way that it needs replacement Refer to Figure 4 18 and follow the steps below Tools Required No 1 Phillips Screwdriver Removal of Old Calfrest 1 Using the Membrane Switches locate
31. he floor To increase the speed adjust the screw counterclockwise To decrease the speed adjust the screw clockwise NOTE The Hydraulic Pump does not activate during SEAT DOWN movement Seat Up Adjustment This adjustment controls the speed that the seat travels upward towards the ceiling To increase the speed adjust the screw counterclockwise To decrease the speed adjust the screw clockwise NOTE If chatter is present in BackUp or Back Down movement it may be related to the input valves being adjusted all the way flush During all repair or adjustments to the chair with the back cover off tthese valaves should be adjusted to flush Chair Back Down Adjustments This adjustment screw regulates the speed at which the back of the chair moves towards the horizontal position To increase the speed adjust the screw counterclockwise To decrease the speed adjust the screw clockwise Factory setting is 5 7 seconds to go from preset pause at 75 to horizontal Reminder Chair won t go to horizontal unless seat is 4 5 raised from low point Chair Back Up Adjustments This adjustment screw regulates the speed at which the back of the chair moves towards the vertical position To increase the speed adjust the screw counterclockwise To decrease the speed adjust the screw clockwise Factory setting is 5 7 seconds to go from preset pause at 75 to horizontal Reminder Chair won t go to horizontal unless seat is 4 5 raised from low p
32. ide as they will be needed to replace the Armrest Shaft 11 Slide the Armrest Shaft through the right side of the chair back support and remove it CAUTION the event that there is a burr on the Armrest Shaft or if the 5 16 pin is broken inside the Pivot Arm Bracket the shaft may not slide through the bracket and may have to be cut in order to remove it Should this happen use a hacksaw and cut through the shaft on both sides of the Pivot Arm Bracket and pull out from both sides Installation 12 Apply a thin coat of lubricant to the new Armrest Shaft 13 Slide the new shaft through the R H bushing and through the chair back 14 Place the new Pivot Arm Bracket on the shaft 15 Line up the hole in the shaft with the hole in the Pivot Arm Bracket 16 Slide an E clip on the pin and press into the bracket from the bottom side 17 Replace the E clip to the top side of the pin securing Pivot Arm Bracket to the Armrest Shaft 18 Slide the bottom pin of the Pivot Arm Bracket into the Linkage Bar and secure with an E clip 19 Replace the Spring Clips on the Armrest Shaft on both sides of the chair frame 20 Using the membrane switches on the chair sides return the chair to the upright position 21 Replace the Armrest Brackets on each end of the shaft and secure them with a Stop Pin Stop Pin 2 Pivot Arm Bracket Armrest Shaft Armrest Bracket 2 Chair Support Frame d e Figure 4 3 Replac
33. ide of the Calfrest Flap locking the Velcro patch on each side in place See Figure 4 18 Using Membrane Switches bring chair to fully reclined position Using the No 1 Phillips Screwdriver replace the two screws beneath the Chair Seat to reinstall the Seat Cushion See Figure 4 18 GLOBAL SMR Maxichair Model 2700 37 SURGICAL CORPORATION Service Manual 4 10 Securing Side Panel On SMR 2700 Maxi Chair Select models prior to serial numbers 01125 and before it may be necessary to add a screw to secure the side panel on the chairs Tools Required 9 64 diameter Drill Bit 3 16 diameter Drill bit Portable Drill 28 32 Hand Tap and Handle Tapping Oil 3 in 1 Oil or equivalent 2 48 32 X 1 Phillips Pan Head Screw Global p n 021 521 075 2 8 Snap Cover Bottom Global p n 018 028 040 2 8 Snap Cover Cap Global p n 018 028 041 Should the Side Panel on the S2700 Maxi Chair Select Select serial numbers 01125 and before become loose Refer to Figure 4 19 and follow the steps below Securing the Side Panel 1 2 3 4 5 Using the Membrane Switches bring the chair back to its full upright position Hold the Side Panel up against the Seat Bottom and forward against the Calf Rest Using a portable drill drill a 9 64 hole through the Side Panel and Chair Seat Support Casting approximately in the center of the Side Panel See Figure 4 19 Hold the Side Panel away from the chair and use the p
34. is marked L MITS ON on the circuit board This LED is lit when chair back or seat function tests are to be performed To extend the life on the infrared LEDs on the limit switch boards they are only turned ON as needed They can be forced to stay ON by placing a jumper in the JUMPER CYCLE ENABLE position CAUTION The only time a jumper should be placed in JUMPER CYCLE ENABLE position is when the limit switch flags are being adjusted or when the chair is being placed into cycle test 5 Brake ON Valve LED This LED is marked BRAKE ON on the circuit board This LED will only be lit when the user presses the BRAKE SWITCH on the membrane switch panel on the side of the chair with the brake in the OFF position It will only light for one 1 second and then go out This LED displays when the actual valve on the manifold is energized 6 Brake OFF Valve LED This LED is marked BRAKE OFF on the circuit board This LED lights when the BRAKE SWITCH is depressed on the switch panel with the brake in the ON position It will only light for one and one half 1 1 2 seconds and then go out This LED displays when the actual valve on the manifold is energized 7 Seat UP Valve LED This LED is marked SEAT UP on the circuit board The LED with light t when the SEAT UP switch is depressed and the SEAT LIMIT SWITCH is not set If the E Seat Down Limit Switch is set the LED will not light but the LIMITS ON LED will light 8 Seat DOWN Valve LED This LED is ma
35. ler box See Figure 4 2 Disconnect and mark all cables attached to the PC Board NOTE It is a good idea to mark the cables using a small piece of masking or other tape to ensure they get reconnected to the proper places on the new PC board Using a No 1 Phillips Screwdriver remove the four screws attaching the PC board to the Controller Remove the PC board and set it aside Mark the PC board as old or Replaced mm dd yyyy to distinguish it from the new one See Figure 4 2 Install the new PC board Using a No 1 Phillips Screwdriver install the four screws attaching the PC board to the Controller 10 Reconnect all the cables to the new PC Board 11 Replace the cover using a No 1 Phillips screwdriver and install the 3 screws 12 Refer to Section 3 3 3 Maxi Select Controller 102 001 212 Set up Procedure GLOBAL SMR Maxichair Model 2700 17 SURGICAL CORPORATION Service Manual Maxi Chair Select Controller lnc Controller Cover Phillips Screw 3 places 00000000 5 Maxi Chair Select Controller Phillips Button Head Screw 4 places PC Board Figure 4 2 Replacing the PC Board 18 SMR Maxichair Model 2700 GLOBAL SURGICAL CORPORATION Service Manual 4 2 Armrest Shaft Replacement There are several conditions that warrant the Armrest Shaft be replaced on the SMR 2700 Maxi Chair Select 4 2 4 Early Production Model
36. more than one function is being performed at a time combine the conditions from the above chart to get the proper Status LED results Chair will start to move It is a good idea to mark the cables using a small piece of masking or other tape to ensure they get reconnected to the proper places on the new PC board Do not completely remove the left side Ribbon Cable at this time The Pivot Bracket on current production models has been made thicker and a 5 16 pin secured by a E clip on both ends has been installed These newer Pivot Brackets and Pins are also available for replacement upgrades Worn or cracked Mounting Clevis components could produce vibrations or even cause the chair to jerk unexpectedly during the operation of the hydraulic cylinder Use care when installing the single screw on the front of the Manifold Assembly There is a washer Retaining Flange 107 037 223 included with the screw which is used because of the slotted hole on the front bracket In order to remove the Emergency Stop Caliper Brake Assembly both the Ribbon Wire Connector and the Power Cord must be pressed through the Cord Grommet in the Brake Disk The Ribbon Wire Connector can be manipulated by turning the connector along side of the ribbon cable and pressed downward through the grommet The Power Cord Plug however will not fit through the grommet and must be removed from the Power Cord in order to complete this procedure A Pin Extractor will be requir
37. n Cable connector from the rear of the Maxi Chair Select Controller The Ribbon Cable Connector is not pictured in Figure 4 13 8 Use the 1 4 Hex Wrench to remove the eight 10 32 X 1 2 hex socket head cap screws that attach the Brake Disk to the Swivel Hub 9 Use the 5 8 open end wrench and remove the two 3 8 X 6 bolts and two Brake Mounting Tubes and two 1 8 spacers that attach the Emergency Stop Caliper Brake Assembly to the Chair Swivel Plate Installation 1 Using the two 3 8 X 6 bolts and Brake Mounting tubes install the new Emergency Stop Caliper Brake Assembly to the Chair Swivel Plate 2 Use the 5 8 open end wrench and tighten the two 3 8 X 6 bolts securely 3 Push the Ribbon Cable and the Power Cord through the grommet on the caliper brake See Section 4 7 1 to reinstall the plug on the Power Cord 4 Use the 1 4 Hex Wrench to install the eight 10 32 X 1 2 hex socket head cap screws that attach the Brake Disk to the Swivel Hub 5 Connect the Power Cable Connector and the Ribbon Cable to the Maxi Chair Select Controller 6 Reinstall the chair housing components and chair back See Steps 3 and 4 above SMR Maxichair Model 2700 GLOBA L SURGICAL CORPORATION Service Manual Brake Disk 039 004 036 27 M 102 032 028 M 27 9777777728 Chair Swivel Plate Maxi Select Controller Cable Cover not shown for clarity Emergency Stop Cali
38. ne Fitting Figure 4 8 Removing the Rear Hydraulic Line on the Upper Hydraulic Cylinder 11 16 Open End Wrench Front Hydraulic Line Fitting Figure 4 9 Removing the Front Hydraulic Line on the Upper Hydraulic Cylinder 28 SMR Maxichair Model 2700 GLOBA L SURGICAL CORPORATION Service Manual Figure 4 10 Removing the Socket Head Cap Screw from Cylinder Rod 16 Using the 5 32 hex wrench remove the four socket head cap screws that attach the Upper Hydraulic Cylinder to the chair frame See Figure 4 11 CAUTION As the socket head cap screws that attach the Upper Hydraulic Cylinder are being removed it is necessary to support the cylinder from the bottom to prevent it from prematurely falling and possibly injuring personnel or damaging chair components 5 32 Hex Wrench Socket Head Cap Screws 2 places Socket Head Cap Screws 2 places Figure 4 11 Removing the Upper Hydraulic Cylinder 17 Remove the Upper Hydraulic Cylinder GLOBA L SMR Maxichair Model 2700 29 SURGICAL CORPORATION Service Manual 4 6 Hydraulic Power Pack Unit Assembly Replacement Tools Required e 5 8 Open end Wrench e 1 4 Hex Wrench Should adjustments to the Hydraulic Manifold fail to correct problems with the movement of the SMR 2700 Maxi Chair Select it may be necessary to replace the Hydraulic Power Pack Unit Assembly 102 025 026 Refer to Figure 4 12 and proceed as follows Removal The step numbers in the b
39. nector on the chair back Disconnect the Footswitch Ribbon Cable where it connects to the left side Ribbon Cable in the lower framework of the chair NOTE Do not completely remove the left side Ribbon Cable at this time d Disconnect the left side Ribbon Cable from the Maxi Select Controller 102 001212 e Connect a new left side Ribbon Cable to the connector on the on the left side Membrane Switch and to the Maxi Select Controller 102 001212 22 SMR Maxichair Model 2700 GLOBA L SURGICAL CORPORATION Service Manual f Reapply electrical power to the S2700 Maxi Chair Select I Right Side Ribbon g Select each button on the left side E LE 1 Cable SEENEN Membrane Switch and verify that the 3 2 e selected operation is performed by the L c gt Cable Clamp 2700 Maxi Chair Select 4 1 Siira Bindia h Connect the right side cable to the af Tie left side cable Select each button on the right side Membrane Switch and verify that the selected operation is performed by the S2700 Maxi Chair Select i If both switches work properly pro ceed to replacing left Ribbon Cable Left Side SA lt Left Right If neither switch works leave the Ribbon Cable cable in the chair as the problem is Cable 3 Connector not the cable If available replace the Maxi Chair Controller PC Board See Section 4 1 2 Replacing Ribbon Cable Once it has beendetermined that the left side
40. ng refer to Figure 4 3 and proceed as follows Tools Required e Hex Wrench e 2 Flat Blade Screwdrivers Removal 1 Disconnect the electrical power from the chair 2 Remove the four hex socket head screws attaching the Headrest and the optional SMR Solarlite to the back of the chair and set them aside 3 Pry off the 4 plastic caps covering the screws on the back covering of the chair 4 Remove the chair back and set it aside 5 Units prior to S N 01261 Remove the hex sockethead cap screw from the back of each of the Armrest Bracket to remove the Armrests and set them aside Units S N 01261 and later Remove the Armrest Boards from each side and set them aside Pull the Stop Pin out of the slot of each Armrest Mounting Block and slide them off the Pivot Arm 6 Using the membrane switches on the chair sides raise the chair to its full height position and recline the chair to the full horizontal position 7 Using the 2 flat blade screwdrivers remove the spring retaining clip on the shaft on each side of the chair supporting frame 8 Use a flat blade screwdriver to remove the upper E clip securing the 5 16 pin to the Pivot Arm Bracket and push the pin downward and out the bottom side GLOBAL SMR Maxichair Model 2700 19 SURGICAL CORPORATION Service Manual 9 Use a flat blade screwdriver to remove the L H E clip from the pin securing the Pivot Bracket to the Linkage Bar 10 Set all E clips and retaining clips as
41. of the Maxi Chair Controller the plug must be reattached to the power cord 6 Visually examine the Power Cord Plug Look for a small flat key running along the top of the plug See Figure 4 15 Power Cord Pin m Power Cord Sliding Plua 10 Extractor Handle Figure 4 14 Removing the Power Cord Plug from the Power Cord 7 Using the key as a guide insert the three wires from the power cord into the plug The green wire goes into the receptacle below the key The brown wire goes into the center receptacle and the blue wire goes into the remaining receptacle See Figure 4 16 8 Connect the Ribbon Cable Connector and the Power Cord Plug to the receptacles on the rear of Maxi Chair Controller 9 Apply electrical power to the chair and cycle test the chair to see if new Emergency Stop Caliper Brake operates per specifications Figure 4 15 Power Cord Plug Keyway 34 SMR Maxichair Model 2700 L SURGICAL CORPORATION 4 8 Service Manual Power Cable Plug XXX XXX XXX Figure 4 16 Rewiring Power Cable Plug Installing the Maxi Select Controller 102 001 212 Cable Cover A Protective Cover XXX XXX XXX has been designed to fit over the Cable Connectors on the back side of the Maxi Select Controller 102 001 212 The purpose of the cover is to provide added protection to the cable connectors to prevent damage or accidental unplugging Tools Required No 1 Phillips Screwdriver Refer to Fi
42. oint Seat Down S 5 2 Input Valves el is Pressure Relief Valve Figure 3 2 Manifold Adjustment Screw Locations Back Cylinder Adjust to Flush if not already flush 6 SMR Maxichair Model 2700 L SURGICAL CORPORATION Service Manual 3 2 Fuse Replacement The SMR Maxichair Model 2700 has four fuses located on the Maxi Selector Controller Box located inside the rear enclosure panels next to the Hydraulic Manifold The two top fuses control the electrical system for the chair and the two bottom fuses are for the AC receptacle located on the back of the chair 3 2 1 Fuse Replacement Chairs with s n 1001 through 1547 Disconnect all electrical power from the chair before attempting to service the internal components of the chair There is a risk of electrical shock resulting in injury or death if the power is not disconnected Refer to Figure 3 1 to remove the Rear Chair Housing To replace the fuses refer to Figure 3 3 and proceed as follows NOTE There are two fuses located in each fuse holder The fuse in the front or closest to the cover is a spare fuse The fuse that will need replacing is in the back of the clip 1 To open the fuse holder press downward on the top Grasp the cover and pull straight back Remove the blown fuse from the Fuse Holde
43. on the lower end of the Lower Hydraulic Cylinder 102 032 031 assembly 6 Wrap a shop towel around the fitting and remove the hydraulic line allowing the towel to catch any excess hydraulic fluid 7 Remove one of the two 0 093 hairpin Cotter Pins on the clevis pin holding the upper portion of the hydraulic cylinder in the Mounting Clevis 8 Slide the pin out of the Mounting Clevis and allow the hydraulic cylinder arm to fall free 9 Visually inspect the two mounting clevis components for any sign of cracks or wear NOTE Worn or cracked Mounting Clevis components could produce vibrations or even cause the chair to jerk unexpectedly during the operation of the hydraulic cylinder 10 Should the Mounting Clevis components appear to be broken or cracked they should be replaced Remove the four 3 8 X 16 X 1 1 4 button head socket cap screws from the top of the Main Link Tie Plate to remove the two Mounting Clevis components 11 Replace the components as necessary Reverse Step 10 to install new Mounting Clevis parts 12 Remove one of the two 7 16 Retaining Rings on the clevis pin holding the lower portion of the hydraulic cylinder to the Swivel Plate 102 032 028 Remove the Clevis Pin 13 Remove the lower Hydraulic Cylinder Installation 1 Replace the Lower Hydraulic Cylinder assembly 2 Replace the Clevis Pin on the lower portion of the hydraulic cylinder and secure with 7 16 E Retaining Ring 3 Use the 5 8 open en
44. ortable drill to enlarge the previous 9 16 hole to 3 16 Using the 48 32 Tap and Handle thread the hole in the Chair Seat Support Casting CAUTION Tap Lubricant 3 1 Oil or equivalent is absolutely necessary in this procedure to 6 prevent the tap from breaking off in the casting Use the standard tapping practice of alternating 1 to 1 1 2 turns forward then 1 2 turn backwards to avoid breaking the Hand Tap Repeat this proceedure until the hole is threaded 5 8 deep Install the 8 Snap Cover Bottom using the 28 32 X 1 Phillips Pan Head Screw Thread the screw into the previously drilled and tapped hole in the Chair Seat Support Casting Push the Snap Cover over the Snap Bottom Repeat this procedure for the other side of the chair Side Panel Figure 4 19 Securing Chair Side Panels 38 SMR Model 2700 GLOBA L SURGICAL CORPORATION Service Manual Section 5 Illustrated Parts Diagrams 5 1 Lower Skeleton Exploded Parts Chair Lower Skeleton with view facing toward the rear of chair Chair Lower Skeleton with view facing toward the front of chair GLOBAL SMR Maxichair Model 2700 39 SURGICAL CORPORATION Service Manual NOTES THESE ITEMS ARE NOT SHOWN QTY 1 018 005 018 ss CLAMP NUT 2 PIECE 1 1 2 12 THD PC SS SNAP GROMMET HEYCO 2140 SPACER 875 OD x 406 ID x 125 THK 8 018 027 103 SS SHIM WASHER 1 2 ID x 3 4 OD 010 THK 55
45. per Brake Assembly 034 001 010 Figure 4 13 Replacing Emergency Stop Caliper Brake 4 7 4 of Power Cord Cable NOTE order to remove the Emergency Stop Caliper Brake Assembly both the Ribbon Wire Connector and the Power Cord must be pressed through the Cord Grommet in the Brake Disk The Ribbon Wire Connector can be manipulated by turning the connector along side of the ribbon cable and pressed downward through the grommet The Power Cord Plug however will not fit through the grommet and must be removed from the Power Cord in order to complete this procedure A Pin Extractor will be required to remove the Power Cord Plug from the the power cord 1 Using the Pin Extractor insert it into each of the three sockets on the Power Cord Plug Push the Pin Extractor in the open end of the plug until it presses against the tabs on each wire end Press the sliding handle on the Pin Extractor to push the wire end out of the Power Cord Plug See Figure 4 14 2 Remove the Emergency Stop Caliper Brake Assembly and and set it aside GLOBAL SMR Maxichair Model 2700 33 SURGICAL CORPORATION Service Manual 3 Place the new Emergency Stop Caliper Brake Assembly on the Chair Swivel Plate and repeat Steps 5 through 10 in reverse order 4 The Ribbon Cable and the Power Cord must be pushed back up through the Grommet in the Brake Disk 5 Before reconnecting the Power Plug and The Ribbon Connector to the back
46. r Refer to Table 3 1 for fuse specifications 2 Visually inspect and use the spare fuse Place a new fuse in the spare clip in the Fuse Holder Ensure Fuseholder snaps up into place WARNING Failure to make sure Fuseholder is properly snapped back into the secure position can result in intermittent function of the chair 3 Replace the rear chair housing 4 Reconnect the electrical power to the chair WII BRRR m Press downward on of the Fuse Holder to open it 42724247 Replace the damaged fuse and snap the Fuse Holder back in place LG Pull the Fuse Holder straight back to expose the fuse Figure 3 3 Replacing Fuses Chairs with s n 1001 to 1547 GLOBAL SMR Maxichair Model 2700 7 SURGICAL CORPORATION Service Manual 3 2 2 Fuse Replacement Chairs with s n 1548 and above NOTE The Rectangular Fuse Holders were replaced by Round Fuse Holders on chairs with serial numbers 1548 and above The Round Fuse Holders require a flat blade screwdriver to open WARNING Disconnect all electrical power from the chair before attempting to service the internal components of the chair There is a risk of electrical shock resulting in injury or death if the power is not disconnected Refer to Figure 3 1 to remove the Rear Chair Housing
47. re 3 3 Replacement of the Armrest Shaft and Pivot Bracket 20 Figure 3 4 Replacing Membrane Switches 22 Figure 3 5 Replacing the Ribbon 23 Figure 3 6 Replacing Lower Hydraulic Cylinder 25 Figure 3 7 Replacing Plastic Shrouds 27 Figure 3 8 Removing Rear Hydraulic Line on the Upper Hydraulic Cylinder 28 Figure 3 9 Removing Front Hydraulic Line on the Upper Hydraulic Cylinder 28 Figure 3 10 Removing Socket Head Cap Screw from Cylinder Rod 29 Figure 3 11 Removing the Upper Hydraulic Cylinder 30 Figure 3 12 Replacing the Hydraulic Power Pack Unit Assembly 30 Figure 3 13 Replacing the Emergency Stop Caliper Brake 33 Figure 3 14 Removing the Power Cord Plug from the Power Cable 34 Figure 3 15 Power Cord Plug Keyway 34 Figure 3 16 Rewiring Power Cable Plug 35 Figure 3 17 Installing Protective Cover on Maxi Select Controller 36 Figure 3 18 Removal and Installation of 37 Figure 3 19 Securing Chair Side Panels 38 Figure 4 1 Lower Skeleton
48. rear chair housing Remove the upper rear chair housing Using a No 2 Phillips screwdriver remove the four screws and the plastic shroud Using a No 2 Phillips screwdriver remove the two screws and the two bolsters Using a No 2 Phillips screwdriver remove the four screws and the plastic shroud Using a No 2 Phillips screwdriver remove the two screws and the seat cushion 0 Use the 11 16 open end wrench loosen the hydraulic fitting on the rear side of the Upper Hydraulic cylinder See Figure 4 8 Place a shop towel below the fitting to catch any fluid that may leak as the fitting is loosened 11 Remove the hydraulic line 12 Using the 5 8 open end wrench along with a 1 2 open end wrench loosen the hydraulic fitting on the front side of the Upper Hydraulic cylinder See Figure 4 9 Place a shop towel and a cup below the fitting to catch any fluid that may leak as the fitting is loosened 13 Remove the hydraulic line 14 Using the 11 16 open end wrench remove the fitting from the Upper Hydraulic Cylinder 15 Using a 3 8 hex wrench remove the socket head cap screw from the end of the cylinder rod See Figure 4 10 SMR Maxichair Model 2700 GLOBA L SURGICAL CORPORATION o gt NS Service Manual Rear Chair L d 2 ousing Figure 4 7 Removing Plastic Shrouds GLOBAL SMR Maxichair Model 2700 27 SURGICAL CORPORATION Service Manual 11 16 Open End Wrench Rear Hydraulic Li
49. ree 1 4 20 X1 2 socket head cap screws and lift the manifold and reservoir assembly away from chair and set it aside NOTE Use care when removing the single screw on the front of the Manifold Assembly There is a washer Retaining Flange 107 037 223 included with the screw which may fall off as the screw is removed e ou Installation 11 Place the new Manifold Assembly onto the chair base and line up the three holes on the bracket with the holes on the chair Swivel Plate Assembly 12 Install the three 1 4 20 X1 2 socket head cap screws and install the manifold and reservoir assembly to the chair Swivel Plate Assembly Using the 1 4 hex wrench tighten the socket head cap screws securely NOTE Use care when installing the single screw on the front of the Manifold Assembly There is a washer Retaining Flange 107 037 223 included with the screw which is used because of the slotted hole on the front bracket 13 Install the four hydraulic lines to the elbow connections on the left side of the Manifold Assembly Tighten the nuts on the hydraulic lines by hand as tight as possible 14 Use the 5 8 open end wrench and securely tighten the hydraulics fittings to the Manifold Assembly 15 Reconnect the Power Cable from the MaxiSelect Controller 16 Reconnect eight electrical leads from the Manifold to the MaxiSelect Controller 17 Reinstall the Chair Back with the 4 screws removed earlier 18 Replace the Headrest and the optional SMR
50. rked SEAT DOWN on the circuit board The LED n with light when the SEAT DOWN switch is depressed and the SEAT LIMIT SWITCH is not set If the Seat Down Limit Switch is set the LED will not light but the LIMITS ON LED will light 9 Back UP Valve LED This LED is marked BACK UP on the circuit board This LED will light when the BACK UP switch is depressed and the Back Up Limit Switch is not set If the Back Up Limit Switch is set the LED will not light but the LIMITS ON LED will turn on 10 Back Down Valve LED This LED is marked BACK DOWN on the circuit board This LED will light when the BACK DOWN switch is depressed and the Back Down Limit Switch is n not set If the Back Down Limit Switch is set the LED will not light but the LIMITS ON LED will turn on 10 SMR Maxichair Model 2700 GLOBAL SURGICAL CORPORATION Service Manual 3 3 2 Maxi Select Controller Features and Functions Table 3 1 Maxi Select Controller Functions STATUS LEDs Key Press and System Conditions VDD Limits ON No Switches Pressed With BRAKE in the ON condition Press and Release the BRAKE switch With BRAKE the OFF condition Press and Release the BRAKE switch Seat in lower most position Press and Hold the SEAT UP switch Seat in upper most position Press and Hold the SEAT UP switch Seat in upper most position Press and Hold the SEAT DOWN switch Seat in lower most position Press and Hold the SEAT DOWN switch Back in
51. s The Pivot Bracket on the Armrest Shaft may break and require replacement These early shafts were connected to the Pivot Bracket with a threaded screw Should the screw break inside the Pivot Bracket it may become necessary to try and drill out the remaining screw pieces or cut through the Pivot Bracket itself WARNING Upon exiting the chair if the occupant places his her weight on ends of both of the Armrests at the same time and presses downward to raise themselves up the Pivot Bracket attachment screw may break Retrofit Kits A Retrofit Kit was made available by Global Surgical that repaired the broken Pivot Bracket bolts The bolt was replaced by a 1 4 headed pin secured by an E clip CAUTION There have been cases where the 1 4 pin has also broken from the weight being applied to the front of both Armrests These cases are rare but have prompted a design change to eliminate this situation 4 2 2 Current Production Models NOTE The Pivot Bracket on current production models has been made thicker and a 5 16 pin secured by a clip on both ends has been installed These newer Pivot Brackets and Pins are also available for replacement upgrades WARNING Upon exiting the chair if the occupant places his or her weight on ends of both of the Armrests at the same time and presses downward to raise themselves up the Pivot Bracket attachment pin may break Should the Armrest Shaft and Pivot Bracket need replaci
52. s prepaid to Global Surgical Corporation 3610 Tree Court Industrial Blvd St Louis Missouri 63122 Attention Technical Services Department GLOBAL SMR Maxichair Model 2700 3 SURGICAL CORPORATION Service Manual 2 1 4 User Comments Global Surgical Corporation would appreciate any comments and suggestions you have concerning this product or this manual Please send your comments to Global Surgical Corporation Customer Services Department 3610 Tree Court Industrial Blvd St Louis Missouri 63122 The Global Surgical Customer Services Department can also be reached by email at the following address global globalsurgical com 4 Maxichair Model 2700 GLOBA L SURGICAL CORPORATION Service Manual Section 3 Service Information 3 1 Manifold Adjustments The SMR Model 2700 Maxichair Select Examination Chair is controlled by a hydraulic motor The hydraulics in the chair are assembled and tested at the factory Should the controls malfunction or not perform as expected the following adjustments can be made WARNING Disconnect all electrical power from the chair before attempting to service the internal components of the chair There is a risk of electrical shock resulting in injury or death if the power is not disconnected Tools Required e 1 Phillips Screwdriver Flat Blade Screwdriver To make adjustments to the Hydraulic Manifold proceed as follows 5 Disconnect the electrical power from
53. te socket 9 Reattach the Power Supply Cable to the appropriate socket 10 Reinstall the Chair Back with the 4 screws removed earlier 11 Reinstall the the plastic caps covering the mounting screws 12 Replace the Headrest and the optional Solarlite bracket using the 4 hex socket cap screws removed in Step 1 of the removal procedures 13 Cycle the chair to ensure that it is operating smoothly Make any adjustments necessary b Membrane Switch Only 14 Remove the old Membrane Switch from the Bezel by peeling it off from the front of the Bezel 15 Remove the backing strip from the adhesive pad on the new Membrane switch 16 Attach the new Membrane Switch to the Bezel 17 Secure the new Membrane Switch and Bezel to the chair side using a No 1 Phillips screwdriver replacing the 2 button head screws 18 Reattach the Fiber Optic Cable to the appropriate socket 19 Reattach the Power Supply Cable to the appropriate socket 20 Reinstall the Chair Back with the 4 screws removed earlier 21 Reinstall the the plastic caps covering the mounting screws 22 Replace the Headrest and the optional SMR Solarlite bracket using the 4 hex socket cap screws removed in Step 1 of the removal procedures 23 Cycle the chair to ensure that it is operating smoothly Make any adjustments necessary GLOBAL SMR Maxichair Model 2700 21 SURGICAL CORPORATION Service Manual Adhesive Surface Seat Back Membrane Switch
54. the Maxi Select Controller Cable Cover 4 9 Calfrest Replacement Section 5 Exploded Parts Breakdown 5 1 Lower Skeleton Exploded Parts GLOBAL SURGICAL CORPORATION SMR 2700 MAXICHAIR i Table of Contents List of Tables 1 1 Chair Specificallolis xe epe eve en v pe E eps nes dus 1 2 1 Select Controller Functions 9 List of Illustrations Figure 1 1 Overall Dimensions 2 Figure 2 1 Removing the Rear Chair Housing 4 Figure 2 2 Manifold Adjustment Screw Locations 5 Figure 2 3 Replacing Fuses Chairs with S N 1001 thru 1547 6 Figure 2 4 Replacing Fuses Chairs with S N 1548 and above 7 Figure 2 5 MaxiSelect Controller Components 8 Figure 2 6 MaxiSelect Controller Set up 12 Figure 2 7 Manual Headrest Friction 13 Figure 2 8 Removing the Rear Chair Housing 14 Figure 2 9 Lubricating the Back Up down Slide Shaft Assembl ies 15 Figure 3 1 Removing the Rear Chair Housing 17 Figure 3 2 Replacing the PC Board 18 Figu
55. the chair 6 Remove the protective plastic caps then use the No 1 Phillips screwdriver to remove the six screws from the rear chair housing Refer to Figure 3 1 7 Remove the rear chair housing Chair L Housing ousing Figure 3 1 Removing the Rear Chair Housing 8 Using a flat blade screwdriver make the following adjustments to the hydraulic manifold Refer to Figure 3 2 and proceed as follows CAUTION Slight adjustments to the manifold can translate to major changes in the performance of the hydraulic system Make small adjustments check the performance and make further adjustments as necessary GLOBAL SMR Maxichair Model 2700 5 SURGICAL CORPORATION Service Manual Pressure Relief Valve The Pressure Relief Valve controls the hydraulic pressure for the overall hydraulic system To decrease system pressure adjust this screw counterclockwise 1 1 2 turns from the fully seated position NOTE some chairs if the Pressure Relief Valve was adjusted too far clockwise excessive pressure could be created exceeding the pump rating This could result in hesitation or chatter in chair movement WARNING Never adjust the Pressure Relief Value to the fully seated clockwise position SEVERE DAMAGE to the hydraulic pump can result The maximum adjustment is 1 1 2 turns from the fully seated clockwise position Seat Down Adjustment This adjustment controls the speed that the seat travels downward towards t
56. the fully vertical position Press and hold the BACK DOWN switch Back in the full Trendelenberg position Press and Hold the BACK DOWN switch Back in the full Trendelenberg position Press and Hold the BACK UP switch Cycle Jumper in no switches pressed and not in CYCLE TEST MODE Cycle Jumper in CYCLE START switches pressed but between cycles 2 SIS gd ES e D ee SR EECH X EISES KO EEN pt DLL LLL LLL oe ALERTE RE UELLE 2527 Lk Status LED is lit L Status LED is momentarily lit NOTE The Maxi Select Controller is Multitasking which means a Seat Function can take place at the same time as a Back Function If more than one function is being performed at a time combine the conditions from the above chart to get the proper Status LED results GLOBAL SMR Maxichair Model 2700 11 SURGICAL CORPORATION Service Manual 3 3 3 Maxi Select Controller Set up Procedure Whenever the Maxi Select Controller PC Board is replaced it will be necessary to calibrate the chair to the new board 1 Press the Back Up membrane switch and hold until the chair back reaches 90 degree position Press the Seat Down membrane switch and hold until chair reaches it lowest position Unplug the chair power cord Move jumper from Jumper Holder JP4 to Jumper Cycle Enable JP3 See Figure 3 6 Press and hold Child Safety Switch J8 through
57. ual DIM Brake ON Brake OFF SeatUP Seat DOWN Back UP Back DOWN Ef Lk Hydraulic pressure required to operate functions 2 5 VDC LED This LED is marked VD on the circuit board It displays the status of the Power Supply resident on the circuit board When brightly lit the power supply is functioning within tolerance If the LED appears dim a voltage measurement should be performed The voltage measurement can be taken between TP2 ground and TP3 VD The voltage reading should be between 4 80 VDC and 5 12 VDC 3 Switch Panel Back Lighting This LED is marked BACKLIGHT on the circuit board This LED and its companion LEDs on the switch panel display the status of the chair Lx Child Safety Mode This LED and it s companions on the switch panel will FLASH in one 1 second intervals when this mode of operation is selected Cycle Test Mode This LED and it s companions will only be lit while the chair is preforming a selected function Half way through a single cycle the LEDs will flash OFF ON and OFF Once the LEDs go OFF the second time the chair will not accept any more commands from the switch panel If a switch is pressed while the chair is preforming a selected function the cycle test will be halted F Cycle Test Error Mode If the chair encounters an error during its cycle testing the cycle test will stop and the LEDs will flash rapidly 4 Limit Switches ON LED This LED

SERVICE MANUAL - Charles L. Crain

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