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ASSEMBLY and SERVICE MANUAL

1. 1 2 13 Locknut 1 4 Split Lockwasher 5 16 Flat Washer SAE 5 16 Split Lockwasher 3 8 Split Lockwasher 1 2 Flat Washer SAE Flat Washer 88 OD x 31 ID x 104 T 7 8 Hole Plug Wave Spring Flat Washer 1 0 OD x 75 ID x 08T 5 8 Hole Plug Fuel Warning Decal Swell Latch 1 2 Hole Plug Decal Up Down Gage Pin Mounting Vac Door Proximity Switch Head LH Traverse Proximity Switch Cord RH Traverse Proximity Switch Cord Proximity Switch Nut Cabinet Weldment Front Panel Weldment Traverse Base Assembly see page 64 Mower Support Assembly see page 78 Cross slide Mount Tooling Bar Shim Spin Drive Assembly see page 80 Tooling Bar Weldment Proximity Switch Bracket Weldment RH Proximity Switch Bracket Weldment LH 1 8 Hex Jam Nut Adjustable Leveling Bolt Right Hand Access Panel Left Hand Access Panel Small Hole Plug 1 75 Diameter PARTS LIST 6329525 TRAVERSE BASE ASSEMBLY 66 PARTS LIST 6329525 TRAVERSE BASE ASSEMBLY DIAGRAM PART NUMBER NUMBER DESCRIPTION Socket Head Cap Screw 10 24 x 3 8 Long Socket Head Cap Screw 10 24 x 3 4 Long Button Head Socket Cap Screw 1 4 20 x 3 8 Long Socket Head Cap Screw 1 4 20 x 1 2 Long Pan Head Machine Screw 1 4 20 x 1 2 Long Button Head Socket Cap Screw 1 4 20 x 1 2 Long Socket Head Cap Screw 1 4 20 x 3 4 Long Socket Head Cap Screw 1 4 20 x 7 8 Long Socket Head Cap Screw 1 4 20 x 1 1 4 Long Socket Head Cap Screw 1 4 20 x 2 Long Socket Head Cap S
2. SDC VOLTAGE REGULATOR Blue Terminal Blocks TBB Grey Terminal Blocks TBG ELECTRICAL TROUBLESHOOTING SKILL AND TRAINING REQUIRED FOR ELECTRICAL SERVICING This Electrical Troubleshooting section is designed for technicians who have the necessary electrical knowledge and skills to reliably test and repair the ACCU Pro electrical system For those without that background service can be arranged through your local distributor This manual presumes that you are already familiar with the normal operation of the Grinder If not you should read the Operators Manual or do the servicing in conjunction with someone who is familiar with its operation Persons without the necessary knowledge and skills should not remove the control box cover or attempt any internal troubleshooting adjustments or parts replacement If you have any question not answered in this manual please call your distributor They will contact the manufacturer if necessary WIRE LABELS All wires on the ACCU Pro have a wire label at each end for troubleshooting The wire label has a code which tells you wiring information The wire label has a seven or more position code The first two or three digits are the wire number 01 999 The next three numbers or letters are the code for the component to which the wire attaches Example GMC for Grind Motor Control The last two numbers or letters are the number of the terminal on the component to which the wire attach
3. lift option C Check 10 amp CB on front of Control panel Press in if tripped D Check for power to GMS E Check for power from GMS F Check for power to relay Coil Relay should click when GMS is turned on G Verify Power to Relay Contacts Grinding Motor works Yes end troubleshooting No go to Step B next Grinding Motor works Yes end troubleshooting No go to Step C next Grinding Motor works Yes end troubleshooting No go to Step D next GMS term 5 to Terminal Block 9 Blue for 120 Volts AC Yes go to Step E next No With power off check continuity of wires to GMS GMS Term 6 to Terminal Block 4 Blue for 120 Volts AC Yes Go to Step F next No replace GMS Check for 120 Volts AC from A1 to A2 of Grinding motor Relay Yes Go to Step G next No check continuity of wires to Grinding motor Relay REL Term L1 to Term L2 for 120 Volts AC Yes Go to Step H next No Check wires to REL Term L1 amp L2 ELECTRICAL TROUBLESHOOTING Continued Possible Cause Checkout Procedure Bad Contacts in Grind H Verify power out of Grinding REL Term T1 to Term T2 for 120 ing motor Relay Motor Relay Volts AC Yes Go to Step I next No Replace Gringing Motor Relay Bad Circuit Breaker I Verify Power out of Circuit Check for 120 Volts AC from Breaker terminals TB2 6 to Terminal Block 4 Blue Yes Go to Step y next No Check circuit breaker for continuity Verify wiring and
4. Hearing Protection Warning Decal No Fuel Warning Decal Multiple Safety Symbols Decal Button Head Safety Screw 8 32 x 1 2 Long Patent Decal Foley United Decal Gage Mounting Pin Side Frame Spacer Plate Door Guide Bracket RH PARTS LIST 6329534 CANOPY ASSEMBLY REAR LIFT OPTION PARTS LIST 6329534 CANOPY ASSEMBLY REAR LIFT OPTION DIAGRAM PART NUMBER NUMBER DESCRIPTION Door Slide Door Guide Bracket LH Rear Panel RH Lift Rear Panel LH Lift ACCUPro Decal Canopy Support Bracket Door Switch Mounting Plate Door Switch Mounting Bracket Latch Spacer Plate Guard Weldment RH Guard Weldment Lift LH Front Guard Door Assembly see page xx Door Safety Switch Assembly Rear Door Switch Cord Lift Control Decal Rocker Switch 6 Amp Circuit Breaker Lift Control Box Strain Relief 22 25 Wire Strain Relief 33 36 Wire Thrust Washer 94 OD x 50 ID Button Head Cap Screw 1 2 13 x 1 1 2 Long Lift Access Panel Flat Head Cap Screw 1 4 20 x 1 4 Long PARTS LIST 6200720 REEL LIFT ASSEMBLY Optional PARTS LIST 6200720 REEL LIFT ASSEMBLY Optional DIAGRAM PART NUMBER NUMBER DESCRIPTION Button Head Cap Screw 10 24 x 1 2 Long Button Head Cap Screw 10 24 x 3 4 Long Button Head Cap Screw 1 4 20 x 5 8 Long 10 24 Nylon Jam Locknut 1 4 20 Nylon Locknut 10 Lockwasher 10 24 Kep Nut Liquid Tight Strain Relief 27 47 Wire 6 Amp Circuit Breaker Rocker Switch Momentary on off on 25 Amp Br
5. Pulley Poly V 1 80 Diameter Pulley Poly V 1 44 Diameter Grinding Head Housing 9 16 18 Locknut Nylon Insert Jam Grinding Head Spindle Assembly Grinding Wheel Knob Grinding Wheel see page 83 Retaining Ring External 50 Shaft Heavy Duty 6329527 CARRIAGE ASSEMBLY PARTS LIST PARTS LIST 6329527 CARRIAGE ASSEMBLY DIAGRAM PART NUMBER NUMBER DESCRIPTION Button Head Cap Screw 1 4 20 x 3 8 Long Button Head Cap Screw 1 4 20 x 1 1 4 Long Button Head Cap Screw 1 4 20 x 2 Long 1 4 Split Lockwasher 1 4 20 Jam Nut 7 8 14 Nylon Jam Locknut 4 x 31 Drive Screw Traverse Clamp Block Traverse Clamp Spacer Plate Clamp Support Block Belt Clamp Tip Compression Spring Retaining Ring Ball Bearing Shoulder Bolt 250 Dia x 387 Long Decal RPM Symbol Traverse Clamp Carriage Base Grinder Head Pivot Shaft Swing Door Latch Swing Door Weldment PARTS LIST 6309573 FINGER AND BODY ASSEMBLY PARTS LIST 6309573 FINGER AND BODY ASSEMBLY DIAGRAM PART NUMBER NUMBER DESCRIPTION Socket Head Cap Screw 10 32 x 3 8 Long Button Head Socket Cap Screw 10 32 x 3 8 Long Socket Head Cap Screw 1 4 20 x 5 8 Long Socket Head Cap Screw 1 4 20 x3 Long Socket Set Screw 10 24 x 1 4 Socket Set Screw Nylok Cup 10 32 x 25 Long Socket Set Screw CP PT 10 32 x 1 2 Long Socket Set Screw 10 32 x 1 2 Long Roll Pin 1 8 Dia x 1 1 4 Long Dowel Pin 1 4 Dia x 5 Long Drive Lock Pin 1 4 x 1 75 Long 10 32 Hex Nut 3 8
6. 2 and 4 Yes Replace SSM No Check Alingment of Front door switch If no Voltage to Term2 or 4 then replace front switch Measure 120 Volts AC at MAG term L3 to Term Block 4 Blue after SSS is pushed Yes Verify Wiring to LVR No Check voltage at T3 If 120 Volts AC Replace MAG If no 120 Volts AC verify wiring to T3 ELECTRICAL TROUBLESHOOTING Continued PROBLEM SPIN DRIVE NOT WORKING IN SPIN MODE Assuming SSS System Start Switch is on with 120 volts AC to control panel and all other functions are working Verify all wires shown on the wiring diagram on pages 88 are correct and pull on wire terminals with approximately 3 Ibs force to verify there are no loose terminal connections and or not loose crimps between wire and terminal If loose terminals are found retighten and retest system If problem persists test as listed below Spin Speed Pot SSP set to zero Spin Motor Switch SMS is not on Spin Rotation Switch SRS is not on Circuit Breaker is Tripped 4 AMP Spin Drive Control SDS is not working Spin Drive motor is bad A Set SSP to 200 on the con trol panel B Turn SMS switch on B Turn SRS switch to direc tion of reel rotation required NOTE CENTER POSITION IS OFF C Reset Circiut Breaker on front of Control Panel Push in if tripped If circuit breaker is tripped verify reel is free spinning D Check SDS L1 to L2 for 120 Volts AC E Check SDC A1 8 A2
7. 20 AMPS VOLTAGE MUST BE CHECKED WITH ALL EQUIPMENT UNDER LOAD OPERATING ON THE CIRCUIT DO NOT OPERATE THIS GRINDER WITH AN EXTENSION CORD PROPER GROUNDING OF THE RECEPTACLE GROUND IN YOUR BUILDING MUST BE VERIFIED BUILDING MAY CAUSE THE GRINDER TO MALFUNCTION FOR 20 AMP RATED LARGE MACHINES Below is a list of required wire size in your building IMPROPER GROUNDING IN YOUR The grinder is equipped with a low voltage relay which is factory preset at 100 VAC If the power supply line does not deliver 100 VAC power under load the relay will open and trip out the starter If this occurs your power supply line is inadequate and must be correct before proceeding further with the grinder FACTORY PRESET TRIP LIGHT INDICATES LOW VOLTAGE DELIVERED TO GRINDER For 0 to 40 Feet from panel to receptacle Use 12 Ga Wire For 40 to 60 Feet from panel to receptacle Use 10 Ga Wire For 60 to 100 Feet from panel to receptacle Use 8 Ga Wire For 100 to 160 Feet from panel to receptacle Use 6 Ga Wire For 0 to 12 Meters from panel to receptacle Use 4 0mm Wire For 12 to 18 Meters from panel to receptacle Use 6 0mm Wire For 18 to 30 Meters from panel to receptacle Use 10 0mm Wire For 30 to 48 Meters from panel to receptacle Use 16 0mm Wire ASSEMBLY INSTRUCTINNG Pantinnaa FOR 220 V 50 or 60Hz EN ft 25 GREEN applications Product No STRIPE 6320915 or 6320925 should WIYELLOW GRO
8. ADJUSTMENTS Continued ADJUSTING CROSS SLIDE ASSEMBLY If the cross slide becomes very difficult to turn it may become necessary to adjust the assembly To relieve the tension on the assembly follow the procedure listed below STEP 1 Using a hydraulic jack raise the traversing carriage base just enough to alleviate the weight stress on the Cross Slide Assembly STEP 2 Knock the pins on either side of the Mounting Frame Adjuster and loosen the 4 bolts B504801 that connect the Carriage Mounting Frame to the frame of the grinder STEP 3 Jack the traversing carriage base up to put a preload on the Cross Slide Assembly STEP 4 Tighten the 4 bolts on the Carriage Mounting Frame to 75 ft Ibs STEP 5 Release the jack pressure and test the vertical and horizontal handwheels for ease of movement through their full range of motion STEP 6 If the Cross Slides tend to bind repeat above steps jacking higher or lower STEP 1 until the handwheels move freely STEP 7 When the Cross Slides move freely through their full range of motion drill new holes and repin assembly CARRIAGE MOUNTING CROSS SLIDE FRAME ASSEMBLY PART OF FRAME ADJUSTMENTS Continued CROSS SLIDE SHAFT REPLACEMENT If the cross slide shafts become scarred or gnarled replace them by the following procedure STEP 1 Use a hydraulic jack to raise the weight off the Cross Slide Assembly STEP 2 Loosen the two nuts on the support casting that ho
9. Proximity light off 12 Volts DC Proximity light on 0 Volts DC Proximity light off 12 Volts DC Replace proximity switch if the volt ages do not read as above PROBLEM Insufficient hesitation at carriage stops prior to reversing traverse The dwell time on the Reset dwell time as required One traverse drive control not set properly increment increases Dwell time by 1 2 second PROBLEM Traverse changes directions erratically while running in traverse cycle Loose wire to proximity Check wire connections from the prox switch imity switches and tighten down Screws A loose wire connection will give intermittent electrical contact PROBLEM Infeed motor not working ELECTRICAL TROUBLESHOOTING Continued Assuming SSS System Start Switch is on with 115 Volts AC to control panel and all other functions are working Possible Cause Infeed Jog Switch IJS is not held to on position Infeed Speed Switch IJS is not on high speed Infeed motor reducer drive coupling is loose No DC voltage to Grind ing Wheel Infeed Motor GIM Infeed Motor Reducer will not function Switch IJS is bad No DC Voltage from the Voltage Regulator Checkout Procedure A IJS Hold switch on in either direction B Put IJS on high speed for ease of checkout Note Infeed motor will always be in low if the grinding motor switch is on C Open infeed motor coupling inspection plate to check
10. See adjustment section plug riding against the screw thread PARTS LIST 6329532 CANOPY ASSEMBLY WINCH 8 BOOM MODEL 50 PARTS LIST 6329532 CANOPY ASSEMBLY WINCH 8 BOOM MODEL DIAGRAM PART NUMBER NUMBER DESCRIPTION Button Head Cap Screw 1 4 20 x 1 2 Long Hex Head Cap Screw 1 4 20 x 5 8 Long Hex Head Cap Screw 1 4 20 x 1 2 Long Button Head Cap Screw 3 8 16 x 3 4 Long Socket Head Cap Screw 3 8 16 1 Long 1 4 20 Nylon Jam Locknut 1 4 20 Nylon Locknut 3 8 16 Nylon Jam Locknut 1 4 Flat Washer 1 4 Split Lockwasher 3 8 Flat Washer SAE 3 8 Split Lockwasher Flat Washer 1 OD x 44 ID 2 Prong Knob Flat Washer 1 38 OD x 39 ID Liquid Tight Strain Relief 27 47 Wire Liquid Tight Strain Relief 19 30 Wire Liquid Tight Strain Relief 43 55 Wire 7 8 Hole Plug 5 8 Hole Plug Electrical Warning Decal Sharp Warning Decal Plastic Rivet Respirator Warning Decal Hearing Protection Warning Decal No Fuel Warning Decal Multiple Safety Symbols Decal Spring Hinge Patent Decal Foley United Decal Gage Mounting Pin Side Frame Spacer Plate Canopy Boom Support Bracket Hinged Walker Panel ACCUPro Decal Door Guide Bracket RH Door Slide Door Guide Bracket LH Canopy Support Bracket Rear Top Filler Weldment Guard Weldment RH Guard Weldment Boom LH Rear Panel Weldment Front Guard Door Assembly see page 60 PARTS LIST 6059526 WINCH AND BOOM ASSEMBLY Optional PARTS LIST Cont 6059526 WINC
11. between wire and terminal If loose terminals are found retighten and retest system If problem persists test as listed below Possible Cause Relief Torque Pot RTP set to zero Spin Motor Switch SMS is not on Spin Rotation Switch SRS is not on Circuit Breaker is Tripped 4 AMP Spin Drive Control SDS is not working Spin Drive motoris bad Checkout Procedure A Set RTP to 20 on the control panel B Turn SMS switch on C Turn SRS switch to direction of reel rotation re quired NOTE center position is off D Reset Circiut Breaker on fornt of Control Panel Push in if tripped E Check SDS L1 to L2 for 120 Volts AC F Check SDC A1 8 A2 for approx 20 Volts DC Have Relief Torque set to Red Line G Check for approx 20 Volts DC input to SRS H Check for approx 20 Volts DC out put from SRS L Check spin motor continuity DISCONNECT POWER NM FROM THE MACHINE Spin Motor works Yes end troubleshooting No go to Step B next Spin Motor works Yes end troubleshooting No go to Step C next Spin Motor works Yes end troubleshooting No go to step D next Spin Motor works Yes end troubleshooting No go to step E next SDC Term L1 to term L2 for 120 Volts AC Yes go to Step F next No Verify Power to Circuit Breaker and SMS and continuity of wires Replace CB or SMS if needed SDC Term 1 to A2 for approx 20 Volts DC Yes go to Step G next No go
12. for approx 90 Volts DC Have Spin Speed Pot set to 400 RPM F Check for approx 90 Volts DC input to SRS G Check for approx 90 Volts DC out put from SRS H Check spin motor continuity Disconnect Power from Machine Spin Motor works Yes end troubleshooting No go to Step B next Spin Motor works Yes end troubleshooting No go to Step C next Spin Motor works Yes end troubleshooting No go to Step C next Spin Motor works Yes end troubleshooting No go to Step D next SDC Term L1 to term L2 for 120 volts AC Yes go to Step E next No Verify Power to Circuit Breaker SMS SRS and continuity of all wires Replace any components found bad SDC Term A1 to A2 for approx 90 volts DC Yes go to Step F next No go to Step L next SRS Term 2 to 3 for approx 90 Volts DC Yes go to Step G next No replace wires 13 8 14 SRS Term 6 to 7 for approx 90 Volts DC Yes go to Step H next No replace SRS switch Remove wires at Terminal Strip 1 Term 4 8 5 check 0 ohms across the black and white wires Yes end troubleshooting motor should work if it does not replace motor No go to Step P next ELECTRICAL TROUBLESHOOTING Continued Possible Cause Spin Speed Pot SSP is not working Spin Torque Pot STP is not set correctly SSP is not working Worn Motor Brushes A Checkout Procedure L SSP 10K on control panel M Check STP remote torque on the to
13. for loose coupling Retighten coupling to drive actuator screw See adjustment section of manual D Check for 12 Volts DC across terminals labeled 2 and 5 ofthe IJS with IJS held on E Check for 12 Volts DC at the GIM terminals F Disconnect GIM from the infeed actuator and check GIM function under no load G Check for 12 Volts to IJS H Check for 12 volts DC at Bridge Diode output Infeed motor works Yes end troubleshooting No go to Step B next High speed works Yes end troubleshooting No go to Step C next Infeed works Yes end troubleshooting No go to Step D next Check term 2 amp 5 of IJS for 12 Volts DC Yes go to Step E next No go to Step G next Check for 12 Volts DC at Term marked 73 GIMBL and 3 GIMRD You will need jumpers to check Yes Go to Step F next No Replace cord wire no 94 Check GIM function when disengaged from Infeed Actuator Yes Replaced Infeed Actuator No Replace GIM Check for 12 Volts DC at Term 6 amp 4 and 3 amp 1 of IJS Yes Replace IJS No go to Step H next Check for 12 Volts DC at term 120BD and 133BD Yes Replace Voltage Regulator No Go to Step I next ELECTRICAL TROUBLESHOOTING Continued PROBLEM Infeed motor not working Assuming SSS System Start Switch is on with 115 volts AC to control panel and all other functions are working Possible Cause Bad Bridge Diode No AC Voltage to th
14. improved by slight adjustment of the IR COMP trim pot clockwise from its factory set position Overcompensation causes the motor to oscillate or to increase speed when fully loaded If you reach such a point turn the IR COMP trim pot counterclockwise until the symptoms disappear Max Speed Set at 3 30 for maximum voltage of 90 Volts DC to the traverse motor When voltage is above 90 volts DC the traverse motor will start to pulsate and not run smoothly Right Traverse Forward Acceleration Factory set at full CCW 8 30 Do not change this setting Left Traverse Reverse Acceleration Factory set at full CCW 8 30 Do not change this setting DB Dead Band is the potentiometer setting for the 50 or 60 Hz cycle control Factory set to 9 00 works for both 50 and 60 Hz Do not change this setting Calibrating the DWELL TIME rotary DIP switch adjusts the amount of time the process remains in the stop position after a limit switch is actuated The DWELL TIME range is adjustable from O 4 seconds A DIP switch setting of 0 sets the DWELL TIME to 0 seconds while a setting of 8 sets the DWELL TIME to 4 seconds Dwell time is factory preset to 4 setting for a 2 second dwell time when reversing at each end of stroke Ge LED s indicate the function that is currently being performed POWER indicates that ac power is being applied to the control FORWARD indicates that the process is running in the forward direction traversing left REVERSE indi
15. increase speed when fully loaded If this occurs turn the IR COMP pot counterclockwise until symptoms disappear UPPER SPIN BOARD LOWER SPIN BOARD a 9 00 Y Y SPO TORQUE IR COMP V Y EPP A 8 J0 FULL CCH MACHINE SERVICE Continued REPLACEMENT OF GRINDING HEAD SHAFT amp BEARINGS Remove grinding wheel and grinding wheel knob The Grinding Head Spindle Assembly consists of the grinding head spindle and a ball bearing press fit together The left side ball bearing is slip fit on the opposite end To replace the spindle assembly remove the left side grinding wheel grip knob square key and belt cover See FIG 29 Loosen the 4 socket head cap screws on the motor plate to remove the poly V belt Loosen the 2 set screws on the spindle pulley and remove the pulley square key and pulley spacer Push on the right hand side of the spindle assembly to compress conical washers so there is no pressure on the shaft retaining ring Using a retaining ring pliers remove the small external retaining ring from the spindle assembly You can now remove the spindle assembly out the right side by lightly tapping on the left end with a rubber mallet The second ball bearing can be removed from the belt side of the Grinding Head Housing To reassemble place the 4 conical washers 2 Pair nested and then place the 2 pairs back to back against the ball bearing on the new spindle assembly See FIG 30 Thoroughly clean the h
16. level on the top of the table Adjust the leveling feet as necessary to bring to level See FIG 4 Place a level across the table from front to rear Adjust the leveling feet on the end of the machine as necessary to level See FIG 5 When both front to back and side to side leveling procedures have been completed thread the hex jam nuts up against the nut that is welded to the bottom until they lock into place Be careful not to move the leveling feet during this process See FIG 3 Make certain that all four leveling feet are firmly contacting the floor Recheck with level after locking nuts are firmly tightened ASSEMBLY INSTRUCTIONS Continued APPLY POWER BEFORE YOU APPLY POWER TO THE GRINDER REFER TO THE IMPORTANT GROUNDING INSTRUCTIONS ON PAGE 10 115 Volt Model Only Plug the control box power cord into a standard 115V AC 20 amp grounded receptacle See FIG 7 220 Volt Model Only For 220 Volt Applications order Part No 6320915 or 6320925 which includes a prewired 3 KVA 220V step down to 110V 50 60Hz transformer See Page 10 IT IS RECOMMENDED THAT THIS ACCU PRO SPIN RELIEF GRINDER HAS ITS OWN PERMANENT POWER CONNECTION FROM THE POWER DISTRIBUTION PANEL WITH NO OTHER MAJOR POWER DRAW EQUIPMENT ON THE SAME LINE IT IS REQUIRED THAT THE POWER DELIVERED TO THIS GRINDER IS 115 VAC 20 AMPS THE TOLERANCE ON THIS POWER REQUIREMENT IS 5 THEREFORE THE MINIMUM VOLTAGE REQUIREMENT IS 109VAC WITH
17. not remove the control box cover or attempt any internal troubleshooting adjustments or parts replacement If you have questions not answered in this manual please call your distributor They will contact the manufacturer if necessary TORQUE REQUIREMENTS Throughout this manual we refer to torque requirements as firmly tighten or the like For more specific torque values refer to the information below GRADE 2 GRADE 5 GRADE 8 SMOOTH 3MARKS 6 MARKS Bolts Going Into a Nut or Into a Thread Hole in HEAD onHEAD on HEAD Steel 1 4 In 6 ft lbs 9 ft lbs 13 ft lbs Refer to the table at the right 8 a esk C6 Kam Bolts Going Into a Thread Hole In Aluminum thread 1 5 kg 2 5 kg 3 9 kg Use the Grade 2 values in the table at the right AA BE thread 2 6 kg 4 3 kg 6 4 kg Socket Head Screws Going Into a Nut or Steel PEA Roos E 7 16 In 30 ft lbs 50ftlbs 75 ft lbs Use the Grade 8 values in the table at the right no ee Machine Screws 1 2 In 45 ft lbs 75 ft Ibs 115 ft Ibs No 6 screws 11 in lbs 0 125kg m EE No 8 screws 20 in lbs 0 23 kg mi No 10 screws 32 in lbs 0 37 kg m ASSEMBLY INSTRUCTIONS Remove the sides front and back of the crate Remove the plastic bag shrink wrap and bubble wrap around boom assembly Remove the metal clips that secure the grinder to the crate base With a fork lift raise the grinder from the wood base and set it in
18. relay will open and trip out the starter If this occurs your power supply line is inadequate and must be correct before proceeding further with the grinder INN TRIP LIGHT INDICATES LOW VOLTAGE DELIVERED TO GRINDER CONTENTS Safety Warnings Service Data Assembly Instructions Page 6 10 Maintenance Instructions Page 11 15 Adjustments Page 16 23 Machine Service Page 24 26 Electrical Troubleshooting Index Page 27 28 Electrical Troubleshooting Page 29 45 Mechanical Troubleshooting Page 46 47 Parts List Page 48 87 Electrical Diagrams Page 88 89 SPECIFICATIONS Electrical Requirements 115V 50 60 Hz 20 amp circuit Net Weight 1490 lbs 676 kg Boom Model 1670 lbs 758 kg Lift Model Shipping Weight 1770 lbs 803 kg Boom Model 1950 Ibs 885 kg Lift Model Maximum Grinding Length 34 inches 86cm SERVICE DATA SKILL AND TRAINING REQUIRED FOR SERVICING This Service Manual is designed for technicians who have the necessary mechanical and electrical knowledge and skills to reliably test and repair the ACCU PRO Spin Relief Grinder For those without the background service can be arranged through your local distributor This Manual presumes that you are already familiar with the normal operation of the Grinder If not you should read the Operators Manual or do the servicing in conjunction with someone who is familiar with its operation Persons without the necessary knowledge and skills should
19. the right side looking from the front of the grinder are fixed with screws and washers The two on the left side looking from the front of the grinder are spring loaded against the lift frame They must be adjusted correctly for proper lift function These left side screws can be accessed through two holes on the inside of the vacuum chamber Remove the vacuum cover and take out the vacuum There are two plastic plugs on the back wall of the vacuum chamber Remove these plugs and raise or lower the lift until the spring retainer screws line up with the holes Tighten the screws until tight springs solid with blue loctite no 242 then back the scres out ONE full turn See items marke B311613 below When complete reinstall plugs vacuum and cover LEFT SIDE LOOKING FROM FRONT OF GRINDER 3289109 BETWEEN SIDE PLATE AND BEARING SHAFT 8311013 RIGHT SIDE LOOKING FROM FRONT OF GRINDER CONTROL BOARD POTENTIOMETER ADJUSTMENTS POTENTIOMETER ADJUSTMENTS TRAVERSE DRIVE CONTROL TDC Min Speed Factory set at full CCW 8 30 Do not change this setting Right Traverse Forward Torque Factory set at full CW 4 30 Do not change this setting Left Traverse Reverse Torque Factory set at full CW 4 30 Do not change this setting IR COMP Factory set to 9 00 IR COMP is current I resistance R compensation COMP IR COMP adjusts the output voltage of the drive which balances load to motor RPM Regulation of a traverse motor may be
20. 24 Jam Nylok Locknut No 10 Lock Washer Square Key 093 x 75 Long 1 8 Dia Nylon Plug Thrust Washer Compression Spring Compression Spring 3 8 16 Dia Split Shaft Collar Straight Grease Fitting Relief Finger Reel Finger Slide Reel Finger Positioner Index Stop Pin Index Sensor Block Slide Washer Eccentric Index Pin Gib Stop Plate Adjustable Index Lever Locking Index Finger Pin 1 8 Diameter Nylon Plug Anti Rotation Plate Dovetail Gib Tee Knob Assembly Knob Assembly Index Finger Assembly Index Lock Handle Weldment Index Finger Positioner Weldment 1 8 Diameter x 1 4 Long Pin Roll 6509358 Stop Plate 6509356 Reel Positioner Adjuster 6309574 STEPPER amp MOUNTING ASSEMBLY PARTS LIST PARTS LIST 6309574 STEPPER 8 MOUNTING ASSEMBLY DIAGRAM PART NUMBER NUMBER DESCRIPTION Socket Head Cap Screw 8 32 x 1 1 8 Long Socket Head Cap Screw 1 4 20 x 1 1 4 Long Socket Set Screw 1 4 20 x 1 2 1 4 20 x 5 8 Set Screw DC Motor Reducer Assembly 3 8 24 Nylok Jam Locknut 8 Split Lockwasher Ball Bearing Retaining Ring Hose Clamp 2 25 Dia Thrust Washer Hex Pivot Pin Trunion Block Bellows 1 88 1 D Actuator Motor Mounting Bracket Calibration ring Socket Head Cap Screw 10 24 x 1 Long 10 Lockwasher 8 32 x 1 4 Button Head Socket Cap Screw Retaining Ring Ext 1 75 Infeed Stepper Assembly Split Shaft Collar 25 I D Window 1 4 20 x 1 4 Socket Set Screw 8 32 x 1 4 Socket Set Screw Adapte
21. ACCU Pro 632 SPIN RELIEF GRINDER ASSEMBLY and SERVICE MANUAL WARNING ie must thoroughly read and understand this anual before operating the equipment paying der ular atten tion to the Wa ming amp Safety instructions SAFETY INSTRUCTIONS Safety Awareness Symbols are inserted into this manual to alert you to possible Safety Hazards Whenever you see these symbols follow their instructions The Warning Symbol identifies spe cial instructions or procedures which if not correctly followed could result in personal injury KEEP GUARDS IN PLACE and in working order REMOVE WRENCHES AND OTHER TOOLS KEEP WORK AREA CLEAN DON T USE IN DANGEROUS ENVIRONMENT Don t use Grinder in damp or wet locations Machine is for indoor use only Keep work area well lit KEEP ALL VISITORS AWAY All visitors should be kept a safe distance from work area MAKE WORK AREA CHILD PROOF with padlocks or master switches DON T FORCE THE GRINDER It will do the job better and safer if used as specified inthis manual USE THE RIGHT TOOL Dont force the Grinder or an attachment to do a job for which itwas not designed WEAR PROPER APPAREL Wear no loose clothing gloves neckties or jewelry which may get caught in moving parts Nonslip foot wear is recommended Wear protective hair covering to contain long hair ALWAYS USE SAFETY GLASSES SECURE YOUR WORK Make certain that the cutting unit is securely fastened wit
22. Grinding Wheel Grip Knob Bellows Way cover Carriage Dust Cover Bracket Plunger Pin Cross Slide Assembly see page 68 6509565 CROSS SLIDE ASSEMBLY PARTS LIST PARTS LIST 6509565 CROSS SLIDE ASSEMBLY DIAGRAM PART DESCRIPTION NUMBER NUMBER Socket Set Screw CPPT 5 16 18 x 3 4 Long 3 8 16 Hex Nut 3 8 16 Hex Jam Nylon Locknut 3 8 Split Lockwasher 3 16 Dia Nylon Plug Handwheel 4 5 Dia 38 Bore Bell V Washer 75 O D x 035 T Thrust Washer Adjustable Handle 5 16 18 Female Orange Adjusting ACME Shaft Locking Stud Shaft Cross Slide Support Slide Shaft Cross Slide Cross Slide Horizontal support Socket Set Screw 5 16 18 x 5 8 Long Flat Washer Grey Decal Orange Decal 5 16 18 Locking Stud Adjustable Handle 5 16 18 Female Grey Spacer 406 ID x 75 OD x 1 0 Long Socket Head Cap Screw 3 8 16 x 1 1 4 Long Rollpin 3 8 Dia x 1 Long 3 8 Split Lockwasher Traverse Base Adjuster Bracket PARTS LIST 6329526 GRINDING HEAD ASSEMBLY PARTS LIST 6329526 GRINDING HEAD ASSEMBLY DIAGRAM PART NUMBER NUMBER DESCRIPTION Socket Head Cap Screw 1 4 20 x 7 8 Long Socket Head Cap Screw 3 8 16 x 1 Long Socket Set Screw Cup Pt 1 4 20 x 3 8 Long Lock Patch 1 4 Flat Washer SAE 1 4 Split Lockwasher 3 8 Split Lockwasher Square Key 1 8 x 3 4 Long 1 HP 120 VAC Motor Conical Washer 1 36 OD x 88 OD Internal Retaining Ring Double Row Ball Bearing Poly V Belt Bearing Sleeve Motor Mount Plate
23. H AND BOOM ASSEMBLY Optional DIAGRAM PART NUMBER NUMBER DESCRIPTION Hex Head Cap Screw 3 8 16 x 1Long Hex Head Cap Screw 3 8 16 x 1 3 4 Long 3 8 16 hex Nut 3 8 16 Nylon Locknut 3 8 Flat Washer 3 8 Split Lockwasher Warning Decal Boom Capacity 7 Winch Handle Hook and Cable Assembly Pulley Guard Bracket Boom Weldment Boom Capacity Decal Winch Warning Decal Hook amp Cable Assembly is packed in carton assembly Install as shown cable runs down middle of boom tube PARTS LIST 6329534 CANOPY ASSEMBLY REAR LIFT OPTION PARTS LIST 6329534 CANOPY ASSEMBLY REAR LIFT OPTION DIAGRAM PART NUMBER NUMBER DESCRIPTION Button Head Cap Screw 10 24 x 3 4 Long Button Head Cap Screw 1 4 20 x 1 2 Long Hex Head Cap Screw 1 4 20 x 5 8 Long Hex Head Cap Screw 1 4 20 x 1 2 Long Button Head Cap Screw 3 8 16 x 3 4 Long Socket Head Cap Screw 3 8 16 1 Long Socket Set Screw Cup Pt 5 16 18 x 1 Long 48 32 Nylon Jam Locknut 10 24 Nylon Locknut 1 4 20 Nylon Jam Locknut 3 8 16 Nylon Jam Locknut 8 Flat Washer 10 Flat Washer 1 4 Flat Washer 1 4 Split Lockwasher 3 8 Flat Washer SAE 3 8 Split Lockwasher Flat Washer 1 OD x 44 ID 2 Prong Knob Flat Washer 1 38 OD x 39 ID Liquid Tight Strain Relief 27 47 Wire Liquid Tight Strain Relief 19 30 Wire Liquid Tight Strain Relief 43 55 Wire 7 8 Hole Plug 5 8 Hole Plug Electrical Warning Decal Sharp Warning Decal Plastic Rivet Respirator Warning Decal
24. LEANING AND MAINTENANCE GUIDELINES FOR POLYCARBONATE WINDOWS Cleaning Instructions DO NOT USE GASOLINE Adherence to regular and proper cleaning procedures is recommended to preserve appearance and performance Washing to Minimize Scratching Wash polycarbonate windows with a mild dish washing liquid detergent and lukewarm water using a clean soft sponge or a soft cloth Rinse well with clean water Dry thoroughly with a moist cellulose sponge to prevent water spots Do not scrub or use brushes on these windows Also do not use butyl cellosolve in direct sunlight Fresh paint splashes and grease can be removed easily before drying by rubbing lightly with a good grade of VM amp P naphtha or isopropyl alcohol Afterward a warm final wash should be made using a mild dish washing liquid detergent solution and ending with a thorough rinsing with clean water Minimizing Hairline Scratches Scratches and minor abrasions can be minimized by using a mild automobile polish Three such products that tend to polish and fill scratches are Johnson paste Wax Novus Plastic Polish 1 and 2 and Mirror Glaze plastic polish M G M10 Itis suggested that a test be made on a corner of the polycarbonate window with the product selected following the polish manufacturer s instructions Some Important DON TS DO NOT use abrasive or highly alkaline cleaners on the polycarbonate windows Never scrape polycarbonate windows with squeegees razor blades or o
25. Nylok Locknut Flat Washer 1 00 OD x 375 ID x 188 T Warning Capacity Decal Spreader Bar Decal 5 16 18 x 3 U Bolt 1 1 2 Grab Hook Spreader Bar Weldment 3700089 Grinding wheel is installed on grinding head when shipped The other wheels are located in the carton assembly 6329531 CONTROL PANEL ASSEMBLY PARTS LIST 86 PARTS LIST 6329531 CONTROL PANEL ASSEMBLY DIAGRAM PART NUMBER NUMBER DESCRIPTION Button Head Cap Screw 10 32 x 1 2 Long Button Head Cap Screw 1 4 20 x 1 2 Long Thread Cutting Screw 1 4 20 x 1 2 Long 1 4 20 Nylon Jam Locknut 1 4 Lock Washer Toggle Switch Boot Toggle Switch Yellow Emergency Stop Ring Rocker Switch DPST Rocker Switch Momentary On Off On Rocker Switch DPDT 4 Amp Circuit Breaker Potentiometer Knob 15 Amp Circuit Breaker Green Start Push button Normally Open Contact Block Switch Mounting Latch Push Pull Red Emergency Stop Button Normally Closed Contact Block Control Panel Decal Control Panel Top Weldment Control Box Weldment Electrical Panel Sub Assembly Potentiometer Assembly Spin Speed Potentiometer Assembly Relief Torque Potentiometer Assembly Traverse Speed Main Power Cord Infeed Motor Cord Light Receptacle Dust Collector Receptacle Cable Tie Mount used throughout machine Cable Tie 6 5 Long x 18 Wide Cablle Tie 4 0 Long x 10 Wide 3707375 8 6329516 CONTROL PANEL SUB ASSEMBLY PARTS LIST PARTS LIST 3707375 8 6329516 CONTR
26. OL PANEL SUB ASSEMBLY DIAGRAM PART NUMBER NUMBER DESCRIPTION Pan Head Self Tapping Screw 8 x 3 8 Long Pan Head Self Tapping Screw 8 x 3 4 Long 8 Lockwasher Terminal Strip Decal 8 Pin socket Primary Ground Decal Primary Ground Lug 14 Din Rail Power Line Filter Traverse Control Board Magnetic Starter Low Voltage Sensor Relay Screwless Terminal Bock End Stop Terminal Block Jumper Terminal Block End Plate 2 Conductor Terminal Block Grey 2 Conductor Terminal Block Blue Low Voltage Warning Decal Electrical Sub Panel 20 Amp Circuit Breaker 19 Pole Terminal Strip Double Spade Terminal Single Spade Terminal 90 Double Spade Terminal 90 Door Safety Switch Monitor 24VDC Power Supply Transformer Assembly Spin Relief Control Board 25 Amp Bridge Diode Voltage Regulator Assembly 3707602 6 Din Rail 3707624 Ground Terminal Block PIP PELIEF IRC PM DFIN FINE NHL KIK WITH PATIN SATH THEY SICH HAIR SP FIN SPEED AN SSA STAM SICH TLP OLE HIR SM THI TEPAIMNL 5190 YP MONAL 2 185 BLOT FEY TRE TEPMIMAL BILL TSP TRAVERSE SPEED FIT TDC TRWAEPSE MAL OI PI SP OR Ei 90 42245721 WIRING DIAGRAM B RE ERUN B RE 2 OR SAFETY WD OP ME II ES BERIEWCY SIP S T FILTER DIRK ITA IN VOLTAGE PELA WW MEI STATE PeI LEFT PARIY SUTTON FIC FIG ETT SIH IK PLA
27. OOR ASSEMBLY PARTS LIST 6329533 FRONT GUARD DOOR ASSEMBLY DIAGRAM PART NUMBER NUMBER DESCRIPTION Button Head Cap Screw 1 4 20 x 1 2 Long Button Head Cap Screw 1 4 20 x 1 1 2 Long Pan Head Machine Screw 8 x 3 4 Long 8 32 Nylon Jam Locknut 1 4 20 Nylon Jam Locknut 1 4 Flat Washer Flat Washer Door Safety Switch Coded Magnet Sharp Warning Decal 3 16 Blind Rivet Button Head Safety Screw 8 32 x 1 2 Long Extension Spring Black Pull Handle Front Outside Window Front Center Hinge Front End Hinge Center Window Support Spring Cover Sleeve Door Safety Switch Front Bottom Window Support Top Window Support Short Window Support Front RH Window Frame Weldment Front LH Window Frame Weldment Door Bracket Front Inside Window Window Retainer Switch Mount Front RH Inside Window Frame Weldment Front LH Inside Window Frame Weldment 6329530 MAIN CABINET ASSEMBLY PARTS LIST 64 PARTS LIST DIAGRAM NUMBER PART NUMBER B311213 B371211 B502801 B504801 B506801 H371602 H372002 6329530 MAIN CABINET ASSEMBLY DESCRIPTION Hex Head Cap Screw 1 4 20 x 5 8 Socket Head Cap Screw 1 4 20 x 5 8 Button Head Socket Cap Screw 5 16 18 x 1 2 Button Head Socket Cap Screw 5 16 18 x 3 4 Socket Head Cap Screw 3 8 16 x 3 4 Hex Head Cap Screw 1 2 13 x 1 3 4 Hex Head Cap Screw 1 2 13 x 3 Hex Head Cap Screw 1 2 13 x 4 25 Roll Pin 375 Dia x 1 Long Roll Pin 375 Dia x 1 1 4 Long 5 16 18 Locknut
28. UND WIRE TO BE be ordered GROUND These models includes a 3 KVA 220V step down to 110 V 50 60 Hz transformer WNELLOW STRIPE gt 220 1 PH POWER IN The wiring diagram is shown in FIG 8 UGHTELLE LA NEUTRAL The power cord has no EILEEN a d connector A connector gt c which is appropriate for your AI LISHT BLUE NEUTRAL locality and 220 volt 10 amp application should be in stalled 1 USE ONLY QUALIFIED ELECTRICIAN TO XI X3 X2 X4H10 HE COMPLETE THE INDIVIDU ALLY WIRE NUT TRANSFORMER LEADS INSTALLATION H2 H3 H4 H7 HS AND INSTALL THE GREEN W YELLOW STRIPE WIRE SUPPLIED INTC THE TERMINAL BLOCK IN THE HOLE OPPOSITE WIRE X3 AB SHOYIN TOINSTALL THE WIRE INSERT SMALL SCREWORIVER IN TO THE SAMTY MARKED A TO OPEN THE WIRE HOLE ATTAGH THE OTHER END CF THE GREEN WIYELLOW STRIFE MIRE SUPPUED TO THE GROUND STUG ON THE TRANSFORMER 8 IMPORTANT GROUNDING __ _ __ In case of a malfunction of electrical breakdown grounding reduces the risk of electrical shock by providing a path of least resistance for electrical current This Grinder has an electrical cord with an equipment grounding conductor and a grounding plug The plug must be plugged into a matching outlet that is properly installed and grounded according to all local or other appropriate electrical codes and ordinances Before plugging in the Grinder make sure it
29. Y vez TT WE LY dica d ak Crete BIS RD 15152101 D EE SES ld eer 2 LIS WAC NELTRAL Fue NER LIKE FILTER A om E STIP START uo Eli 155 Lu ola eer MG io en p cw amp SEA MO nac E me Va I rer Ma I x 2 27 Y m TIC BI CORCU BREMER IARU BREMER 2 IHN SAFETY SMITH IES2PEAP DOOR SAFETY SMITH ES EREPLENCY STOP SANCH BE GINDING KOTIR SANCH III VOLTAGE RELAY RHINE STARTER HS HATE SELCTOR HH P L LEFI PROXIMITY SWITEH PR RIHT PROXIMITY SMITCH PEL CRINDIHE MOTOR PLAY RIED FM SKE SPIN SWITCH SPS SPIN ROTATION SICH SSH SAFETT SSP SPIN SPEED AG DI STAT SCH ST5 SPIMTOPBLE SAOR SWITCH TSP TRANEPSE SPEED TOC TRAVERSE MAL
30. age Detach front and rear shields See FIG 15 STEP 2 Remove the three screws of one linear bearing and slide the linear bearing off the end of the carriage shaft STEP 3 Insert a new linear bearing onto the end of the carriage shaft with the tension adjustment screw pointing outward See FIG 14 Adjust the tension screw of the linear bearing so when you radially rotate the linear bearing around the carriage shaft there should be no free play between the linear bearing and the carriage shaft NOTE Tension is too tight if you feel a cogging action when you rotate the linear bearing around the shaft This cogging is from the skidding of the bearing on the shaft and indicates tension screw is too tight Finally sliding the bearing block back and forth should be a smooth uniform motion SETTING THE BEARING TENSION CORRECTLY IS CRITICAL TO PROPER GRINDING BEARINGS WHICH ARE TOO TIGHT OR TOO LOOSE WILL CAUSE POOR GRIND QUALITY ALSO BEARINGS amp WHICH ARE TOO TIGHT WILL HAVE SUBSTANTIALLY SHORTER LIVES AND MAY DAMAGE THE SHAFT STEP 4 Slide linear bearing under carriage and attach with the three screws NOTE Repeat Steps 2 thru 4 with the other three linear bearings STEP 5 After all four linear bearings are reattached to the carriage check for correct bearing tension The bearing tension is correct when you try to lift the carriage and can feel no carriage movement which is free play up and down The most dependable method of
31. cates that the process is running in the reverse direction traversing right PROX 1 FWD LIMIT lights when the forward limit switch is actuated left prox PROX 2 REV LIMIT lights when the reverse limit switch is actuated right prox DWELL lights when the process remains stopped after a proximity switch is actuated SET YE 10 4 FULL FULL FOR 50 OF HD HZ EV 9 00 MV PRO 2 Fev UNT C PA Irma C vs FRE CH ven APR ED 3 ED HU ALL FULL Cr D D Potentionmeter Clock Orientation ENIG CONTROL BOARD POTENTIOMETER ADJUSTMENTS Continued SPIN DRIVE CONTROL BOARD SDC The Spin Drive Control Board has three potentiometers on the lower board and two potentiometers on the upper board as shown on FIG 27 and FIG 28 These potentiometers have been set at the factory to the positions shown on FIG 27 and FIG 28 In the Relief Grinding Mode The remote Relief Speed Pot RSP and the Relief Torque Pot RTP interact with each other The RSP is located on the upper spin board as a remote speed preset at 9 30 See FIG 27 The RTP is located on the control panel and is for relief torque adjustment Remote Relief Speed Pot RSP when rotated clockwise will increase maximum spin drive speed when in the relief mode This speed should never be above the 10 30 setting Relief Torque Pot RTP can vary the reel to finger holding torque for relief grinding The recommended starting point is 30
32. checking free play is to use a magnetic base dial indicator attached to the traverse frame weldment and reading the vertical movement above each bearing This movement should be within 001 03 mm Also when pulling the carriage in the traversing direction there should be only approximately a 3 Ib force with the belt disengaged To check this attach a spring scale to the carriage and pull parallel to the carriage shafts To double check the assembly slide the carriage assembly from end of travel to end of travel it should have very uniform resistance through the full range of travel STEP 6 Replace the bellows carriage mounting brackets onto the carriage Replace front and rear shields See FIG 15 FRONT DUST SHIELD LINEAR BEARING TENSION ADJUSTMENT SCREN POSITION FACING OUT FIG 14 REAR DUST SHIELD FIG 15 REEL FINGER DOVETAIL GIB AND ADJUSTING KNOB ADJUSTMENTS The reel finger slide to the reel finger positioner has a dovetail with an adjustable gib for tensioning Tighten the gib set screws on the side so there is no free play in the dovetail slide Check for movement when pushing on the relief finger side to side with 20 Ibs 44kg force Make sure the knob assembly for adjusting the relief finger to the grinding wheel is rotatable by hand The gib adjustment should be sufficient to maintain a rigid position of the reel finger See FIG 16 Check the knob assembly rotating tension by checking the tigh
33. chine until the WHEEL GUARD IS IN PLACE DON T JAM work into the wheel DON T STAND DIRECTLY IN FRONT of a grinding wheel whenever a grinder is started DON T FORCE GRINDING so that motor slows noticeably or work gets hot AVOID INHALATION OF DUST generated by grinding and cutting operations Exposure to dust may cause respiratory ailments Use approved NIOSH or MSHA respirators safety glasses or face shields and protective clothing Pro vide adequate ventilation to eliminate dust or maintain dust level below the Threshold Limit Value for nuisance dust as classified by OSHA This machine is intended for grinding the reel of reel type mower units ONLY Any use other than this may cause personal injury and void the warranty To assure the quality and safety of your machine and to maintain the warranty you MUST use original equipment manufacturers replacement parts and have any repair work done by a qualified professional ALL operators of this equipment must be thoroughly trained BEFORE operating the equipment Do not use compressed air to clean grinding dust from the machine This dust can cause personal injury as well as damage to the grinder Machine is for indoor use only Do not use a power washer to clean the machine 2222222222222 7 Y Low Voltage Relay The grinder is equipped with a low voltage relay which is factory preset at 100 VAC If the power supply line does not deliver 100 VAC power under load the
34. crew 1 4 20 x 4 Long Button Head Socket Cap Screw 5 16 18 x 1 2 Long Socket Head Cap Screw 5 16 18 x 1 Long Socket Head Cap Screw 1 2 13 x 2 Long Socket Head Set Screw Cup Point 1 4 20 x 1 4 Long 3 8 Diameter Roll Pin x 2 1 2 Long 1 4 20 Nylon Locknut Thin 1 4 20 Nylon Locknut 5 8 18 Nylon Locknut Thin 3 4 16 Nylon Locknut No 10 Washer 1 4 Flat Washer SAE 1 4 Split Lockwasher 5 16 Split Lockwasher 1 2 Split Lockwasher Square Key 1 8 x 3 4 Long Square Key 3 16 x 3 4 Long Traverse Pulley Support Traverse Pulley Shaft Drive Pulley Cog Idler Pulley Assembly Destaco Clamp Cog Belt Thrust Washer 1 1 40D x 3 4 ID External Retaining Ring Wave Spring 78 ID Wave Spring Compression Spring Spacer 5 8 OD x 9 32 ID x 3 8 Long Linear Ball Bearing PARTS LIST Continued 6329525 TRAVERSE BASE ASSEMBLY 68 PARTS LIST Continued 6329525 TRAVERSE BASE ASSEMBLY DIAGRAM PART NUMBER NUMBER DESCRIPTION Compression Spring External Retaining Ring Traverse Motor Assembly Finger amp Body Assembly see page 74 Traverse Base 5 8 Shaft Coupler Motor Extension Shaft Pulley Mount Bracket Prox Flag Bracket Weldment Shaft Support Block Assembly Grinding Head Assembly see page 70 Carriage Assembly see page 72 Traverse Base Adjuster End Cap Bellows Bracket Carriage Mount Bellows Bracket End Mount Plunger Pin Retainer Belt Cover Carrier Shaft Belt Cover Gasket Traverse Base Fixed Bracket
35. e input side of transformer Checkout Procedure I Verify voltage to bridge diode J Check for 115 Volts AC at transformer input black wires Check 12 6 Volts AC at input of Bridge Diode BD1 Term to Term Yes Replace Bridge Diode BD1 No Go to Step J next Check for 115 Volts AC at Term TBW 13 and TBG 9 Yes Replace Transformer No Follow separate trouble shooting procedure on AC main power Possible Cause PROBLEM Reels ground have high low blades Traverse Speed set too fast Lineal bearings for the grinding head carriage are out of adjustment loose or have grit buildup causing uneven traversing load MECHANICAL TROUBLESHOOTING Continued Checkout Procedure Check roundness using a magnetic base dial indicator Traverse speed should be set approximately 12 ft min 4 meters min if roundness is varying Relubricate and adjust linear bearings per adjustment section If problem persists replace lineal bearings on the carriage base Check for any holes in the bellows that would permit any grinding grit penetration See adjustment section for lineal bearing replacement PROBLEM Excessive grinding stock being removed when traversing to the right in the relief grinding mode Gib adjustment for the relief finger assembly is loose so reel finger has movement When traversing to the right minimum grinding stock removal should be seen as compared with heavy stock removal when traversing to
36. es ELECTRICAL TROUBLESHOOTING INDEX AC Main Power Controls Page 29 31 Spin Drive Controls in Spin Mode Page 32 33 Spin Drive Controls in Relief Mode Page 34 36 Grinding Motor Controls Page 37 38 Traverse Drive Controls w prox Page 39 40 Traverse stopping and reversing Page 41 43 Infeed Controls Page 44 45 ELECTRICAL TROUBLESHOOTING Continued PROBLEM AC Main Power Controls no electrical power to control panel Verify all wires shown on the wiring diagram on pages 88 are correct and pull on wire terminals with approximately 3 Ibs force to verify there are no loose terminal connections and or no loose crimps between wire and terminal If problem persists test as listed below Possible Cause Emergency Stop Botton ESS is Depressed You must push the System Start Switch SSS to get power to control Panel Main Power Cord is not plugged in Guard doors must be closed and ALL Switches MUST be turned OFF for contactor to pull in Main 20 amp outlet circuit breaker has tripped No 120 Volts AC power to Filter FTR No 120 Volts AC power out of Filter No 120 Volts AC power to Main Circuit Breaker MCB No 120 Volts AC power from Main Circuit Breaker MCB Checkout Procedure A Pull Up on ESS Button B Listen for the Magnetic Starter MAG contacts to pull in with a clunk C Plug in main power cord D Close guard doors and turn off all switches E Check circuit breaker in your building a
37. h the clamps provided before operating DON T OVERREACH Keep proper footing and balance at all times The Caution Symbol identifies special instructions or procedures which if not strictly observed could result in damage to or destruction of equipment MAINTAIN GRINDER WITH CARE Follow instructions in Service Manual for lubrication and preventive maintenance DISCONNECT POWER BEFORE SERVICING or when changing the grinding wheel REDUCETHERISK OF UNINTENTIONAL STARTING Make sure the switch if OFF before plugging in the Grinder USERECOMMENDED ACCESSORIES Consultthe manual for recommended accessories Using improper accessories may cause risk of personal injury CHECK DAMAGED PARTS A guard or other part thatis damaged or will not perform its intended function should be properly repaired or replaced KNOW YOUR EQUIPMENT Read this manual carefully Learn its application and limitations as well as specific potential hazards KEEP ALL SAFETY DECALS CLEAN AND LEGIBLE If safety decals become damaged or illegible for any reason replace immediately Refer to replacement parts illustration in Service Manual for the proper location and part numbers of safety decals DONOT OPERATE THE GRINDER WHEN UNDER THE INFLUENCE OF DRUGS ALCOHOL OR MEDICATION SAFETY INSTRUCTIONS IMPROPER USE OF GRINDING WHEEL MAY CAUSE BREAKAGE AND SERIOUS INJURY Grinding is a safe operation if the few ba
38. idge Diode Thermistor Assembly Electrical Warning Decal Lift Electrical Control Box Lift Control Decal Lift Actuator Cord Lift Controls Harness Lift Power Cord Diode Jumper Assembly DA DTC I ICT 2 9907M DELI I ICT ACCERNADI Optional PARTS LIST 6200720 REEL LIFT ASSEMBLY Optional DIAGRAM PART NUMBER NUMBER DESCRIPTION Button Head Cap Screw 10 24 x 1 2 Long Socket Head Cap Screw 3 8 16 x 1 Long Socket Head Cap Screw 3 8 16 x 1 1 4 Long Socket Head Cap Screw 3 8 16 x 2 1 2 Long Socket Head Cap Screw 3 8 16 x 4 1 2 Long Flat Head Cap Screw 1 2 13 x 1 1 2 Long Socket Head Cap Screw 1 2 13 x 2 Long 3 8 16 Nylon Locknut 3 8 16 Nylon Jam Locknut 1 2 13 Nylon Locknut 3 8 Flat Washer 3 8 Split Lockwasher 1 2 Flat Washer 1 2 Split Lockwasher Button Head Cap Screw Flat Washer Electro Mechanical Actuator Motor Service Electro Mechanical Actuator Compression Spring External Snap Ring Thrust Washer Cam Follower Flanged Bronze Bushing Lift Long Arm Lift Swing Arm Lift Short Arm Bearing Plate Bearing Plate Arm Block Ramp Support Strap Anti Rollback Plate Pivot Pin Lift Cross Support Lift Bearing Assembly Lift Frame Weldment Load Carrier Weldment Actuator Top Block Assembly Ramp Weldment Capacity Warning Decal Not Shown Capacity Warning Decal Text Not Shown 5 16 18 x 5 8 Button Head Socket Cap Screw Flat Washer 315 ID x 50 OD x 035 Thick PARTS LIST 6329533 FRONT GUARD D
39. in Ibs of torque setting Never adjust the RTP potentiometer dial past the red line marking Setting the reel to finger torque to high could cause the traverse motor system to not operate smoothly In the Spin Grinding Mode the remote Spin Torque Potentiometer STP and the Spin Speed Pot SSP interact with each other The STP is located on the upper spin board as remote torque preset at 2 00 for torque setting See FIG 27 The SSP is located on the control panel and is for spin speed adjustment The remote Spin Torque Pot STP controls maximum torque allowable in the spin grinding cycle only This should never be adjusted past the 2 30 position If the reel does not turn check that the reel is free turning by hand spinning The Spin speed Pot SSP controls reel spin speed adjust as required This controls the spin drive speed for spinning the reel POTENTIOMETERS ON THE LOWER BOARD OF THE SPIN DRIVE CONTROL SDC See FIG 28 Maximum Speed Pot The maximum speed is factory preset to 4 30 fully clockwise to allow for maximum spin speed Minimum Speed Pot The minimum speed is factory preset at 8 30 full counterclockwise so zero speed is obtainable for spin speed IR Compensation Pot The IR Compensation is factory set at 9 00 Regulation of the spin or relief grind spin motor may be improved by a slight adjustment of the IR COMP pot clockwise from its factory set position Overcompensation causes the motor to oscillate or to
40. itches with steel tool to take measurements Left proximity PROX 1 check Traverse drive Control TDC between terminals 13 black wire and 15 brown wire Right proximity PROX check 14 black wire and 15 brown wire The light coming on shows the proximity is getting electrical contact Proximity light on 0 Volts DC Proximity light off 12 Volts DC Proximity light on 0 Volts DC Proximity light off 12 Volts DC Replace proximity switch if the voltages do not read as above ELECTRICAL TROUBLESHOOTING Continued PROBLEM Traverse speed control goes at one speed only Possible Cause Defective speed control potentiometer Wiring hookup to potentiometer is improper If components have been replaced Main circuit board dial pot settings not correct If board has not been replaced Checkout Procedure A Check potentiometer on control panel B Check potentiometer for 10 000 ohms Remove three wires from Traverse Drive Control red from term 8 white from term 7 black from term 9 C Check potentiometer wiring for proper hookup See that speed pot is wired per electrical diagram D Check all pot settings on circuit board as shown in wiring diagram See adjustment section Traverse Motor Control Board Settings Traverse Drive Control Pin 8 to 7 Pot full CCW Pot Full CW 0 VDC 9 75 VDC Pin 8 to 9 Pot full CCW 9 75 VDC Yes Pot is OK No Go to Step B next Po
41. its final position See FIG 1 and 2 THE UNIT WEIGHS 1490 LBS 676 kg WITH BOOM OR 1670 LBS 758 kg WITH LIFT USE POWER EQUIPMENT TO LIFT MACHINE Remove shipping straps from traverse carriage Remove window protective sheets POSITION BASE The ACCU Pro Spin Relief Grinder will require an operating area of about 150 W x 108 D x 87 H 381 x 274 x 221 cm The mower reel will be lifted from the front of the machine if using the boom and the rear if a lift is installed The machine operator will operate the unit from the front of the machine Position the base to allow sufficient operating room in front of the machine and behind if using the rear lift See FIG 1 and 2 The base should be placed on a relatively level concrete floor with ample ceiling height to allow for the installation of the unit Do not place the unit across two concrete slab seams or across a large crack ASSEMBLY INSTRUCTIONS Continued Remove the carton and remove the contents from the carton onto a workbench The carton includes SPREADER BAR ASSEMBLY ONLY ON MODELS WITH BOOM PRODUCT PACKET I SPIN DRIVE ADAPTER 5 127mm DIA X 3 8 10mm WIDE GRINDING WHEEL e 3 5 89mm DIA X 1 25mm WIDE GRINDING WHEEL 3 5 897mm DIA X 3 8 10mm WIDE GRINDING WHEEL ww ALLEN WRENCH REEL POSITION GAGE HORIZONTAL EXTENSION DRIP PAN ALIGNMENT GAGE ASSEMBLY INSTRUCTIONS Continued LEVEL BASE Place
42. ix months Wipe and relube with never seez the vertical and horizontal alignment shafts and lead screws every six months See FIG 8 Liftthe bellows and wipe off the bearing rails monthly Lubricate linear bearing follow the lubrication procedure on the following pages Generally this will be every six months to a year STORAGE PROCEDURE It is important to follow the procedures below when placing your grinding in storage for an extended period of time Proper care will help maintain the working functions of the grinder and decrease maintenance and problems that occur when storing the grinder BEFORE STORING THE GRINDER Clean the machine thoroughly DO NOT USE COMPRESSED AIR OR A POWER WASHER TO CLEAN THIS MACHINE See Maintenance section for instructions on cleaning polycarbonate Lubricate the following parts by flooding the area with a spray lubricant and leaving it in place Do not use a Teflon based lubricant Traverse Shafts amp Linear bearings see Lubrication section of manual Remove grinding wheel and spray the movable parts of the finger system Cross slide shafts and adjustment screws Right side of Traverse Base Scratches in the paint or any other bare metal surfaces Work the lubricant in by moving parts through their full range of motion Make sure all controls are in the off position and unplug the unit from the wall Turn off the digital alignment gage Cover the unit if possible with a sheet
43. k for 50 000 ohms Red wire to white wire Full CCW 0 ohms Full CW 50 000 ohms Red wire to black wire Full CCW 50 0000 ohms Full CW 0 ohms Yes Replace SDC No replace RTP Remove the brushes one at a time and maintain orientation for reinsertion See if brush is worn short 3 8 10 mm mini mum length ELECTRICAL TROUBLESHOOTING Continued PROBLEM Spin drive speed goes at one speed only Possible Cause Wiring hookup to potentiometer is improper If components have been replaced Defective spin speed control SSP potentiometer Main circuit board dial pot settings not correct If board has been replaced Remedy A Check potentiometer wiring for proper hookup See that speed pot is wired per electrical diagram B SSP 10K Remove 3 remote speed wires red wire to term W white wire to term L black wire to term H C Check all pot settings on both boards as of the SDC shown on Pages 24 and 25 See Adjustment Section Spin Drive Control SDC Board Setting PROBLEM Spin drive motor speed varies IR Comp trim pot not adjusted properly Torque to rotate the reel too high Check all terminal connections for tightness A See adjustment section for trim pot setting on Page 24 B Readjust bearing preload for the reel Maximum torque load 25 in Ib to rotate reel C When 250 female spade terminals are not tight remove and crimp slightly together When reinstalling push on
44. ld the locking studs and tap with plastic hammer to loosen STEP 3 Loosen the locking handles and tap the center stud with a plastic hammer STEP 4 Loosen locknut and setscrew and remove the handwheel STEP 5 Remove the Slide Shaft STEP 6 Remove all burrs and resurface the shaft to a clean smooth polished surface OR REPLACE WITH A NEW SHAFT STEP 7 Coat shaft with Never Cease and re install the shaft through the Support Cross Slide Block and the three locking studs The shaft must move freely inside the Cross Slide Block before reassembling LOCKNUT ET STEP 8 Retightening the nuts at the end of the locking studs to lock shaft in place STEP 9 Reinstall the Handwheel by snugging the setscrew to the flat located on the screw shaft then torque nut until tight and back off 1 2 turn Torque the setscrew to 70 in Ibs STEP 10 Test the Cross Slide the handwheel LOCK should turn freely HANDLES STEP 11 Lower the jack and retest the Cross Slide Assembly through full range of motion If binding occurs follow the procedure under Cross Slide Assembly located on page 21 NOTE It is also possible to remove the complete Cross Slide Assembly and do the repairs on a bench then reinstall ps NUT LOCKING STUD LOCKN y E HANDWHEEL 22 ADJUSTMENTS Continued TRAVERSE BELT TENSION To adjust the tension on the traverse belt tighten the screws and nuts located at the left side of the traverse belt Tighten
45. nd reset if necessary Check wall outlet with a light to make sure it works F Check for 120V at Cord into FTR Power Cord 32 G Check for 120V out of FTR H Check for 120V to MCB L Check for 120V to MCB Machine works Yes end troubleshooting No go to Step B next Machine works Yes end troubleshooting No go to step C next Machine works Yes end troubleshooting No go to step D next Machine works Yes end troubleshooting No go to step E next Machine works Yes end troubleshooting No but light works in outlet go to Step F next No but light does not work in outlet You must solve your power delivery problem independent of machine FTR Line Terminals for 120 Volts AC Yes Go to Step G next No Replace Power Cord 6059054 FTR Load Terminals for 120 Volts AC Yes Go to Step H next No Replace Filter MCB Bottom Terminal to Terminal Block 4 Blue for 120 Volts AC Yes Go to Step I next No Check wires amp replace if needed MCB Top Terminal to Terminal Block 4 Blue for 120 Volts AC Yes Go to Step J next No Flip Switch on MCB to ON Machine works end trouble shooting Machine does not work replace MCB Possible Causes 120 Volts AC power not delivered to Terminal Strip Grinding Motor Switch GMS not working Spin Motor Switch SMS not working Bad Emergency Stop Switch ESS Bad System Start Switch SSS Low Voltage Relay REL not opera
46. nt Bracket T Knob 5 16 18 Linkage Spacer 2 29 Long Linkage Spacer R H Thread Belleville 75 Dia x 35 T Shoulder Bolt 375 Dia x 375 Long Nylon Ball 5 32 Dia Socket Set Screw 5 16 18 x 1 4 Linkage spacer L H Thread Linkage Spacer 2 5 Long Socket Head Cap Screw Nylok Hex Locknut 3 8 16 Support Bracket Weldment Handwheel 4 5 Dia Hex Jam Nut 1 4 20 1 4 20 Nylok Locknut Socket Set Screw 5 16 18 x 3 8 Long Double Thread Rod Knob Assembly Spin Drive Plate Lock Geared Linkage Socket Head Cap Screw 1 4 20 x 3 1 8 Long Square Key 3 16 x 75 Long DC Motor Brush PARTS LIST 6329529 MISCELLANEOUS PARTS PARTS LIST Continued 6329529 MISCELLANEOUS PARTS DIAGRAM PART NUMBER NUMBER DESCRIPTION Grinding Wheel 3 5 Dia x 38 w Grinding Wheel 3 5 Dia x 1 Wide Grinding Wheel 5 Dia x 3 8 Side Grinding Wheel 5 Dia x 1 Wide 5 16 Allen Key 1 4 Lockwasher T Knob Assembly Alignment Extension Weldment Gage Bar Weldment Retaining Plate Plate Pivot Knob Assembly T Knob Assembly Socket Head Cap Screw 5 40 x 38 Long Socket Head Cap Screw 8 32 x 5 8 Long 8 32 Hex Nut No 5 Split Lockwasher No 8 Lockwasher Digital Gage Base Weldment Indicator 1 16 x 3 16L Roll Pin Socket Head Cap Screw 10 24 x 1 2 10 24 Nylok Locknut Reel Positioner Gage Drip Pan Weldment SPREADER BAR ASSEMBLY COMES ON BOOM MACHINES ONLY Socker Head Cap Screw 3 8 16 x 1 1 4 Long 5 16 18 Lock Nut 3 8 16
47. nuts until the comprension springs measure 3 4 See FIG 25 If the springs are not tensioned equally uneven loading on the traverse system may cause parts to fail DO NOT OVERTIGHTEN OVERTIGHTENING COULD 3 Aul DAMAGE THE BELT OR mr QC TRAVERSE DRIVE SYSTEM TRAVERSE CLAMP FORCE If the traverse clamp is slipping during regular operation it may be necessary to tighten the clamp To tighten loosen the jam nut on the clamp tip Screw the tip out so there is 10 gap between the tip and the Clamp Support Block See FIG 26 Lock in place by tightening the jam nut against the clamp being careful not to move the tip Verify the distance between the clamp tip and block is still 10 The 10 setting allows slippage in a jam situation and damage can occur if this adjustment is set to narrow CAUTION SHOULD BE USED AS ADJUSTING THE TIP WILL AFFECT THE SLIP LOAD AND COULD DAMAGE THE CLAMP TIP BELT OR TRAVERSE DRIVE SYSTEM ADJUSTMENTS Continued REEL LIFT PIVOT BOLTS There are four pivot bolts on the reel lift that must be adjusted correctly for proper lift function Tighten the screws and locknuts and then loosen 1 8 to 1 4 turn until the screw turns freely with fingers when the screw is under no load See items marked SCREWS AND LOCKNUTS below SCREWS AND LOCKNUTS ADJUSTMENTS Continued REEL LIFT SIDE BEARING ASSEMBLIES There are four side bearing assemblies two on each side on the reel lift The two on
48. o slippage If there is belt slippage when turning on the motor there will be a slight squeal before the belt comes up to speed When you achieve correct tension reassemble all of the remaining parts that have been removed SHAFT COLLAR RELJEF FINGER ADJUSTING T KNOB NYLON PLUG SET SCREW FOR TENSION IN THE FINGER ADJUSTING T KNOB ADJUSTMENTS Continued LOCKING INDEX FINGER PIN INDEX FINGER ASSEMBLY INDEX FINGER LOCKING PIN To align the Index Finger Locking Pin to the hole in the Index Finger Assembly loosen the two socket head cap screws so the index sensor block is movable Push down on the index finger assembly until the spring loaded index finger locks into hole with no binding Tighten the two socket head cap screws so the index sensor block is secured and the locking pin moves freely See FIG 19 SOCKET HEAD CAP SCREWS INDEX SENSOR BLOCK FIG 19 PROXIMITY SWITCH PEOSTMITY SYITUI For the proximity switch to perform properly and reverse the direction of the carriage at each end of the rails a distance of 3 16 4 mm to 1 4 6 mm needs to be maintained between the carriage proximity flag bracket and the proximity switch 3 16 iam See FIG 20 174 iem NOTE Light on proximity activates when metal crosses in front of switch sensor ADJUSTMENTS Continued ADJUSTABLE RELIEF TENSION NYLON PLUG amp SET SCHEN If the relief angle appears to vary during relief grinding adjust the
49. or tarp BRINGING THE UNIT BACK INTO SERVICE Remove the cover and reapply lubricantto the items stated above Wipe off all excess lubricant See Lubrication section for more details Plug the unit into the wall and test all electrical functions Check the belts for cracking and adjust the tension if necessary Check for damaged or missing parts LUBRICATION LUBRICATION OF LINEAR BEARINGS STEP 1 Thoroughly clean the shafts STEP 2 Flood spray the two shafts with a spray lubricant do not use a teflon based lubricant until the lubricant is dripping off the shafts See FIG 10 Then run the carriage back and forth through its range of travel This will carry the lubricant into the bearings STEP 3 With a clean rag wipe off the excess amount of lubricant from the shafts Run the carriage back and forth through its range of travel and wipe the shafts after each traverse Repeat until the shafts are dry to the feel This completes the lubrication process If the unit will be shut down for an extended period of time more than four weeks then the shafts and other appropriate parts of the unit should be flooded with lubricant and that lubricant left in place until the unit is brought back into service When the unit is brought back into service the full lubrication procedure as stated above should be repeated TRAVERSE BASE ALONE WITHOUT DUST PROTECTION COMPNENTS 13 MAINTENANCE Continued C
50. ousing bore and the outside diameter of both bearings Apply blue Loctite 2242 to the outside diameter of the two bearings Slide the spindle assembly into the right side of the Grinding Head Housing Install the bearing sleeve against the bearing on the spindle assembly Slip fit the new left side ball bearing onto the spindle assembly and into grinding head housing Install the 9 16 18 Locknut onto the spindle shaft and using a spanner wrench on the right side of the spindle and a 7 8 deepwell socket on the left side torque the locknut to 30 Ft Lbs Replace the square key and the pulley pushing the pulley against the locknut with no end play Apply blue locktie to the pulley bore before installation Next install blue Loctite 4242 on the pulley setscrews and tighten the two pulley set screws Then remount the poly V belt See Grinding Head Belt Tension Adjustment in the adjusting section Replace belt cover and square key and mount the left side grinding wheel grip knob and tighten the two set screws 632 MANUAL CONTROL PANEL Door Safety Switch Monitor SSM 24 VDC Power Supply PWR Low Voltage Relay LVR Terminal Strip 42 TB2 Magnetic Contactor MAG Main Circuit Breaker MCB Grinding Motor Relay REL Termial Strip 1 TB1 Main Ground Lug AC Filter 115 24 V FTR TRANSFORMER TFR EI ER 222 BRIDGE DIODE BD Traverse Drive Control Board TDC Spin Drive Control Board
51. ove the compartment lid and install the SR44 battery with its positive side facing up After the battery is installed set the origin 2 To set the origin move the slider to an area you wish to set as your origin Turn the power on Hold the ORIGIN switch down for more than one second The 0 00 display appears indication Origin setting is complete The origin will be retained even if the power is turned off Incremental INC amp Absolute ABS mode The LCD will dispay measurements from the origin when turned on ABS mode To set the origin see above The display can be set to zero at any desired position by pressing the ZERO ABS switch ING indicator will apper in the display INC mode permitting measurements from this zero point To return to the ABS mode hold the ZERO ABS buttton form more than 2 seconds Error Symptoms amp Remedies ERRC and display flickering Occurs when the scale surface is stained Clean the scale surface and coat a thin film of low viscosity oil to keep out moisture E in the least significant digit This occurs when the slider is moved too quickly but it does not affect the measurement If it stays on when the slider stops the scale surface is probably stained If this is the case take remedies as for ErrC Bindication Battery voltage is low Replace the battery as soon as possible ADJUSTMENTS CARRIAGE LINEAR BEARING REPLACEMENT STEP 1 Detach the bellows mounting brackets from the carri
52. p SDC board N SSP 10K Remove 3 Remote Speed wires Red wire to term W White wire to term L Black wire to term H P Inspect Motor Brushes DISCONNECT POWER FROM MACHINE On SDC Remote Speed check Black wire H terminal to Red wire W terminal for Pot Full CCW O volts DC Pot Full CW 4 4 Volts DC Check White wire L terminal to Red wire W terminal for Pot Full CCW 4 4 Volts DC Pot Full CW DC 0 Volts DC Yes Go to Step M No Go to Step N STP on SDC remote torque should be set at 2 00 o clock position See Pages 24 and 25 Adjust if incorrect and check Spin Drive Function Yes end of troubleshooting No Replace SDC Check for 10 000 ohms Red wire to white wire Full CCW 0 ohms Full CW 10 000 ohms Red wire to black wire Full CCW 10 000 ohms Full CW 0 ohms Yes replace SDC No replace SSP Remove the brushes one at a time and maintain orientation for reinsertion See if brush is worn short 3 8 10 mm minimum length Yes replace motor brushes No replace Spin Drive Motor ELECTRICAL TROUBLESHOOTING Continued PROBLEM Spin Drive not working in relief mode Assuming SSS System Start Switch is on with 115 volts AC to control panel and all other functions are working Verify all wires shown on the wiring diagram on pages 88 are correct and pull on wire terminals with approximately 3 Ibs force to verify there are no loose terminal connections and or no loose crimps
53. place SSS contactor NO Measure 120 Volts AC from LVR term 8 to Term Block 4 Blue Yes Go to Step P next No Check for 120 Volts AC from LVR term 6 to term 7 Yes Verify Continuity of term 1 to term 8 on LVR Replace LVR if bad No Verify Continuity of Wires Measure 120 Volts AC from MAG Term A1 to Term A2 Yes MAG Should pull in with clunck if not replace MAG No Verify Continuity of Wires ELECTRICAL TROUBLESHOOTING Continued PROBLEM Machine Shuts off when you turn on Grind motor switch or Spin Motor Switch Possible Cause Guard Doors are Open Door Safety Switches are not working properly No 24 Volts DC to Safety Monitor SSM No Power into 24 Volt DC Power Supply PWR No Power Out to Door Switches Rear Ramp Switch is Bad Lift Model Skip to next step if boom model Front Door Switch is Bad Checkout Procedure A Close the front doors and rear ramp lift model B Check Alignment of Door Safety Switches on Front doors and rear ramp lift model C Check SSM for 24 Volts DC Turn switches off and press start switch to pull in MAG before testing voltages D Check PWR for 120 Volts AC Turn switches off and press start switch to pull in MAG before testing voltages E Verify 24Volts DC out to Door Switches F With Rear Ramp Closed Verify 24Volts DC back form rear Door Switch Boom model verify jumper assembly is in place and terminals are on
54. pressure should have increased for good contact SPIN DRIVE If wiring is wrong correct and test Yes end of troubleshooting No Go to Step B next Check for 10 000 ohms Red wire to white wire Full CCW 0 ohms Full CW 10 000 ohms Red wire to black wire Full CCW 10 000 ohms Full CW 0 ohms Yes Go to Step C next No Replace SSP Yes end of troubleshooting No replace SDC Original adjustment was not set properly Too much load on drive motor will cause motor to hunt and vary speed When connections are not tight the control board varies voltage to the DC motor which then varies speed ELECTRICAL TROUBLESHOOTING Continued PROBLEM Grinding motor not working Assuming SSS System Start Switch is on with 120 volts AC to control panel and all other functions are working Verify all wires shown on the wiring diagram on pages 74 76 are correct and pull on wire terminals with approximately 3lbs force to verify there are no loose terminal connections and or no loose crimps between wire and terminal If loose terminals are found retighten and retest system If problem persists test as listed below Possible Cause Grinding Motor Switch GMS is not on Guard doors are not closed 10 Amp Circuit Breaker CB is tripped GMS not working Grinding Motor Relay not working No Power to Relay Contacts Checkout Procedure A Turn switch on B Close Front guard doors and rear ramp
55. r Base Cover Plate Socket Head Cap Screw 10 24x 3 8 Long PARTS LIST 6329535 MOWER SUPPORT ASSEMBLY 80 PARTS LIST DIAGRAM PART NUMBER NUMBER 032958 enmiendas 6509564 6329535 MOWER SUPPORT ASSEMBLY DESCRIPTION Pan Head Machine Screw 10 24 x 3 8 Long No 10 Lockwasher Knob Assembly Quick Release Pin 31 Dia Shoulder Bolt 375 Dia x 50 Long 6 type B Lanyard Horizontal Scale Decal RH Vertical Scale Decal Bar Mounting Weldment Bracket L H Front Roller Horiz Weldment Bracket ee L H Roller Clamp Weldment Bracket Knob Assembly m L H Front Roller Clamp Weldment Knob Assembly R H Front Roller Horiz Welment Bracket R H Roller Clamp Weldment Bracket Thrust Washer Socket Head Cap Screw 5 16 18 x 3 4 Long 5 16 Lockwasher Rear Roller Support Bracket Weldment 1 2 20 x 1 2 Flat Pt Socket Head Set Screw R H Front Roller Clamp Weldment Rear Clamp Rear Clamp Base Weldment Horizontal Scale Decal LH PARTS LIST 6509465 SPIN DRIVE ASSEMBLY PARTS LIST Continued 6509465 SPIN DRIVE ASSEMBLY DIAGRAM PART NUMBER NUMBER DESCRIPTION Reducer 10 1 Ratio Motor DC 20 HP TEFC Socket Head Cap Screw 1 4 20 x 7 8 Long Flange Coupler 50 Sleeve Coupler Flange Coupler 5 8 Drive Coupling Adapter Tee Knob Assembly Retaining Ring Drive Adapter 1 2 Square Square Key 1 8 x 75 Long Gearbox Slide Bracket Strain Relief Wire Gearbox Clamp Bracket Gearbox Slide Weldme
56. replace if needed Bad Grinding Motor J Verify Power to Grinding mo Verify wiring at terminals 1 2 8 3 tor Cord on Terminal Strip 1 Check TB1 1 to TB1 2 for 120 Volts AC Yes Check terminals on motor cord If tight replace motor No Check wires from Grinding Motor Relay and Circuit Breaker to Terminal Strip 1 PROBLEM Traverse Drive not working ELECTRICAL TROUBLESHOOTING Continued Assuming SSS System Start Switch is on with 120 volts AC to control panel and all other functions are working Verify all wires shown on the wiring diagram on pages 88 are correct and pull on wire terminals with approximately 3lbs force to verify there are no loose terminal connections and or no loose crimps between wire and terminal If loose terminals are found retighten and retest system If problem persists test as listed below Possible Cause Traverse Motor Switch TMS is not on Traverse Speed Pot TSP set to zero Fuse on Traverse Drive Control TDC has failed Traverse Drive Control TDC is bad Bad Traverse Motor Switch TMS Checkout Procedure A Turn on TMS B Set TSP to 35 on the control panel C Check fuse and replace if failed See Page 23 Too heavy a grind causes grinding head traverse motor to overload and blow the fuse NOTE Fuse can not be checked visually Use Ohm test to check fuse If needs replacing MUST use a 3 amp slo blo fuse Part Number 3707546 D Check for 120 Vol
57. rminals 7 amp 8 check for 0 ohms across the black and white wires Yes end troubleshooting motor should work if it does not replace motor No go to Step K next TDC Pin 8 to 7 Pot Full CCW Pot Full CW OVDC 9 75 VDC Pin 8 to 9 Pot Full CCW Pot Full CW 9 75 VDC 0 VDC Yes replace the TDC No go to Step J next Check for 10 000 ohms red to white wires Full CCW 0 ohms Full CW 10 000 ohms Red to black wires Full CCW 10 000 ohms Full CW 0 ohms Yes replace the TDC No replace TSP Remove the brushes one at a time and maintain orientation for reinsertion See if brush is worn short 3 8 10 mm minimum length Yes replace motor brushes No replace Traverse Motor ELECTRICAL TROUBLESHOOTING Continued PROBLEM Traverse does not stop to reverse directions when flag goes under the proximity switch on the left side or right side of machine Possible Cause Checkout Procedure Gap between flag and prox is incorrect Proximity Switch is bad A Gap between flag and prox should be 3 16 to 1 4 4 6 mm Prox LED does not light when flag is under prox B Proximity switch is not working properly or wire connections are loose If incorrect adjust per adjustment section of manual Yes end troubleshooting No go to Step B next First check to see if proximity light comes on When the light is on it means that there is electricity coming to proximity switch Actuate prox sw
58. sic rules listed below are fol lowed These rules are based on materiel contained in the ANSI B7 1 Safety Code for Use Care and Protection of Abrasive Wheels For your safety we suggest you benefit from the experience of others and carefully follow these rules DO DO always HANDLE AND STORE wheels in a CAREFUL manner DO VISUALLY INSPECT all wheels before mounting for possible damage DO CHECK MACHINE SPEED against the established maximum safe operating speed DO CHECK MOUNTING FLANGES for equal and correct diameter DO USE MOUNTING BLOTTERS when supplied with wheels DO be sure WORK REST is properly adjusted DO always USE A SAFETY GUARD COVERING at least one half of the grinding wheel DO allow NEWLY MOUNTED WHEELS to run at operating speed with guard in place for at least one minute before grinding DO always WEAR SAFETY GLASSES or some type of eye protection when grinding DON T DON T use a cracked wheel or one that has become damaged DON T FORCE a wheel onto the machine OR ALTER the size of the mounting hole if wheel won t fit the machine get one that will DON T ever EXCEED MAXIMUM OPERATING SPEED established for the wheel DON T use mounting flanges on which the bearing surfaces ARE NOT CLEAN FLAT AND FREE OF BURRS DON T TIGHTEN the mounting nut excessively DON T grind on the SIDE OF THE WHEEL see Safety Code B7 2 for exception DON T start the ma
59. t Full CW 0 VDC Check for 10 000 ohms Red to White wires Full CCW 0 ohms Full CW 10 000 ohms Red to Black wires Full CCW 10 000 ohms Full CW 0 ohms Yes Go to Step C next No replace potentiometer Wiper inside of potentiometer controls speed Wiper may be bad and not making contact Wrong wire hookup effects traverse control Reversing red and orange wires to potentiometer to the D C motor will run at zero speed but maximum will be too slow Reversing red and white wires does not affect speed control Check for Proper function Yes end troubleshooting No Go to Step D next Minimum and maximum pot settings effect traverse speed ELECTRICAL TROUBLESHOOTING Continued PROBLEM If the carriage traverses to one end of stroke or the other and it stops and does not reverse direction Possible Cause Proximity switch is not working properly or wire connections are loose Remedy First check to see of proximity light comes on When the light is on it means that there is electricity coming to proximity switch Actuate prox switches with steel tool to take measurements Left proximity PROX1 check Traverse drive Control TDC between terminals 14 black wire and 15 brown wire Right proximity PROX check TDC between terminals 13 black wire and 15 brown wire Reason The light coming on shows the proximity is getting electrical contact Proximity light on 0 Volts DC
60. tension on the nylon plug and set screw See FIG 21 SAFETY SWITCH ALIGNMENT For the safety switches to work properly they must be adjusted so the sender and receiver are parallel to each other with a maximum gap of 19 inches 5mm Adjust by moving the doors or brackers If this does not help a special wrench is needed to adjust the safety screws used to hold the switch in place See FIG 22 19 5mm 19 ADJUSTMENTS Continued SPIN GRINDING ATTACHMENT ADJUSTI If play develops so crank handle wants to rotate in the scissor action on the spin grinding attachment the play can be eliminated by tightening the set screw identified in FIG 23 If there is too much play in the spin drive pivot points torque down the hex nut tight so conical washer is completely compressed then back off 1 2 turn See FIG 23 REDUCER MOTOR ADAPTER TO ACTUATOR DRIVE SCREW CLAMPING COLLAR POSITIONING INSPECTION PLATE REMOVED ACTUATOR The lower clamp collar next to the reducer motor adapter is to be positioned flush to the end of the actuator screw shaft and tighten down with 6 ft lbs 0 8 kg of torque See FIG 25 The top clamp collar is factory adjusted and does not need any further adjustment There is to be no slippage between the reducer motor adapter shaft and actuator screw when pushing down on grinding head and stalling the reducer motor CLAMP COLLAR REDUCER MOTOR amp ADAPTOR ASSEMBLY FIG 24 20
61. the left Tighten the set screws for the gib adjustment See procedure in the adjustment section in the manual PROBLEM Grinding stock removal from reel is irregular during spin grinding Lineal bearings on the grinding head carriage are too loose The lineal bearing must be preloaded to the traverse shafts with no vertical movement See manual adjustment section for carriage bearing adjustments PROBLEM Carriage traversing varies speed while grinding Lineal bearings in the carriage do not rotate freely Belt is slipping Traverse Belt tension to loose Check for grinding grit getting into the lineal bearings and causing excessive driving torque of carriage Abrasive noise is detectable when excessive grit is in the lineal bearings Replace the four lineal bearings in the main carriage Check bellows for holes and replace if necessary Belt Clamp may have moved See manual adjustment section for Traverse Clamp Force Check the spring length on left side of travese belt See manual adjustment section for Traverse Belt Tension MECHANICAL TROUBLESHOOTING Continued Possible Cause Checkout Procedure PROBLEM Too heavy a burr on cutting edge of reel blades Traverse speed set too high causing a heavy burr Traverse speed should be set lower approximately 12 on the reel blade when spin grinding ft min meters min for a smaller burr on cutting edge PROBLEM Cone shaped reel after grinding Grinding head tra
62. ther sharp instruments Benzene gasoline acetone or carbon tetrachloride should NEVER be used on polycarbonate windows DO NOT clean polycarbonate windows in hot sun or at elevated temperatures Graffiti Removal Butyl cellosolve for removal of paints marking pen inks lipstick etc The use of masking tape adhesive tape or lint removal tools works well for lifting off old weathered paints To remove labels stickers etc the use of kerosene VM amp P naphtha or petroleum spirits is generally effective When the solvent will not penetrate sticker material apply heat hair dryer to soften the adhesive and promote removal GASOLINE SHOULD NOT BE USED MAINTENANCE Continued DIGITAL GAGE Important Do not mark the scale unit with and electric engraver or scratch the scale Always use an SR44 battery silver oxide cell If the scale will not be used for more than three months remove the battery and store it properly Otherwise leakage if any from the battery may damage the unit Description of Parts 1 Beam 2 Main Scale 3 Battery compartment 4 Output Connection 5 Display 6 ON OFF Power 7 ZERO ABS switch 8 Origin Switch 9 Inch mm Switch 10 Tapped hole 11 Slider Battery Installation and Origin Setting Set the origin of the scale after installing the battery Otherwise the error sign E at the least significant digit may appear resulting in incorrect measurements 1 To install the battery rem
63. tight G With Front doors Cloded Verify 24Volts DC back form Front Door Switch PROBLEM MAG turns on only with System Start Switch held in Possible Cause MAG holding contact has failed Checkout Procedure A Check wiring to and from MAG holding contact in Verify the magnetic starter holding contact is working Machine works Yes end troubleshooting No go to Step B next See Alignment section of this Manual Machine works Yes end troubleshooting No go to Step C next Measure 24 volts DC from SSM Terminal A1 to Terminal A2 Yes Go to Step E next No Go to Step D next Measure 120 volts AC from PWR Terminal L to Terminal N Yes Verify 24 VDC out of PWR V to V Replace if no Voltage out or Check Wiring Verify Continuity to SSM if there is 24 VDC No Verify Wiring and Continuity from PWR to terminal blocks Measure approximately 24 volts DC from Ter minal Strip 1 Terminal 17 to Terminal Strip 2 Terminal 3 Yes Go to Step F next No Verify Continuity of Wires to Terminal strip Replace SSM if wires check OK Measure approximately 24 volts DC from Ter minal Strip 2 Terminal 3 to Terminal Strip 1 Ter minals 14 and 15 Yes Go to Step G next No Check Alingment of Rear door switch If no Voltage to Term14 or 15 then replace rear switch If still not working replace cord Measure approximately 24 volts DC from Ter minal Strip 1 Terminal 17 to Terminal Strip 2 Terminals
64. ting Bad Main Contactor MAG Checkout Procedure J Check for 120 Volts AC at terminal strip K Check for 120 Volts AC at GMS Terminals 1 L Check for 120 Volts AC at SMS Terminals 1 M Check voltage after the ESS MAKE SURE SWITCH IS PULLED UP N Hold in SSS and Check voltage after the SSS O Hold in SSS and Check voltage at LVR LVR must be installed in 8 pin socket P Hold in SSS and Check voltage at MAG A1 amp A2 ELECTRICAL TROUBLESHOOTING Continued Terminal 11 on Terminal Strip 2 07TB2 11 to Terminal Block 4 Blue for 120 Volts AC Yes Go to Step K next No Check wires 7 8 3 Check Jumper on Terminal Blocks 1 3 Measure 120 volts AC from GMS Terminal 1 to Term Block 4 Blue Yes Go to Step L next No Flip Switch and check again Works Switch is upside down Does not work Check wiring Verify Continuity Replace Switch Measure 120 volts AC from SMS Terminal 1 to Term Block 4 Blue Yes Go to Step M next No Flip Switch and check again Works Switch is upside down Does not work Check Wiring Verify Continuity Replace Switch Measure 120 Volts AC from ESS term 2 to Term Block 4 Blue Yes Go to Step N next No Check wire for continuity then verify switch continuity If bad replace ESS contactor NC Measure 120 Volts AC from SSS term 3 to Term Block 4 Blue Yes Go to Step O next No Check wire for continuity then verify switch continuity If bad re
65. tness of the nylon plug to the knob assembly threads The tightness has to be sufficient so the knob assembly does nat rotate during the relief grinding cycle See FIG 17 NOTE To adjust the nylon plug you must lock the index finger assembly down and then adjust the reel finger positioner so the clearance holes line up with the nylon plug set screw Take up any free play between the tee knob assembly reel finger slide and 375 threaded split shaft collar Loosen the shaft collar locking cap screw and rotate the shaft collar until there is no end play Retighten locking cap screw on the threaded split shaft collar See FIG 16 GRINDING HEAD BELT TENSION ADJUSTMENT The left side grip grinding wheel knob must be removed for belt tensioning adjustment Remove the six screws holding the two double tube clamps and the belt cover For grinding motor belt adjustment loosen the four socket head cap screws that attach the motor Adjust the grinding motor for proper belt tension by pushing back on the motor and tighten the four socket head cap screws The proper belt tension for the grinding head is to push down on the poly V belt half way between the two pulleys with 5 lbs 2KG of force and belt movement dimensions to be 12 inches 3mm See FIG 18 To verify belt tension mount the belt guard with two screws Turn the motor on If the belt is tensioned correctly start up torque of the motor through the pulley to the belt should have zer
66. to Step L next SRS Term 2 to 3 for approx 20 Volts DC Yes go to Step H next No replace wires 13 8 14 SRS Term 6 to 7 for approx 20 Volts DC Yes go to Step I next No replace SRS switch Remove wires at Terminal Strip 1 Term 4 amp 5 check 0 ohms across the black and white wires Yes end troubleshooting motor should work if it does not replace motor No go to Step P next ELECTRICAL TROUBLESHOOTING Continued Possible Cause RTP Relief Torque Pot is not working Relief Speed Pot RSP is not set correctly RTP is not working Worn Motor Brushes Checkout Procedure L Check RTP 50K on control panel check voltage with pots at fully clockwise and counterclockwise positions M Check RSP remote speed 10k on SDC top board this is preset to 9 30 N RTP 50K Remove 3 Remote Torque Wires red wire to term W white wire to term L black wire to term H P Inspect Motor Brushes DISCONNECT POWER FROM MACHINE On SDC Remote Torque check Black wire H terminal to Red wire W terminal for Pot CCW 0 volts DC Pot CW 2 Volts DC Check White wire L terminal to Red wire W terminal for Pot CCW 2 Volts DC Pot CW DC 0 Volts DC Yes go to Step M next No go to Step N next RSP to the top SDC board should be set at 9 30 See pages 24 and 25 Adjust if incorrect and check Relief Torque func tion Yes end of troubleshooting No replace SDC Chec
67. ts AC incoming to TDC E Check for 120 Volts AC at TMS Make certain TMS is on Traverse works Yes end troubleshooting No got to Step B next Traverse works Yes end troubleshooting No go to Step C next Traverse works Yes end troubleshooting No go to Step D next On TDC Terminal L1 to L2 for 120 Volts AC Yes Go to Step F next No Go to Step E next Measure 120 volts AC from TMS Terminal 5 to Term Block 4 Blue Yes Go to Step L next No Flip Switch and check again Works Switch is upside down Does not work Check wiring Verify Continuity Replace Switch ELECTRICAL TROUBLESHOOTING Continued Possible Cause No DC Voltage from TDC Traverse Drive Control Traverse Motor is bad TSP is not working TSP 10K is bad Worn motor brushes Checkout Procedure F Check for 90 Volts DC across TDC terminals A1 to A2 this voltage drives the DC traverse motor NOTE Traverse must be on and have TSP turned full CW to maximum voltage of 90 VDC G Check traverse motor continuity DISCONNECT POWER FROM MACHINE H Check TSP 10K on control panel J Check TSP for 10 000 ohms Remove three wires from TDC red from term 8 white from term 7 black from term 9 K Igspect Motor Brushes DISCONNECT POWER FROM MACHINE Check TDC terminals A1 to A2 for 90 Volts DC Yes go to Step G next No go to Step H next Remove motor wires from Terminal Strip 1 te
68. vel not parallel to the reel center Grinding head travel was not setup parallel to the reel shaft center shaft in vertical and horizontal planes See Align the Reel Section in operator s Manual PROBLEM Relief grind on the reel blades do not go the full length of the reel The right side corner of the grinding wheel is The right hand side of the grinding wheel is not in full always to be in contact with the reel blade This is contact for relief grinding high point of the relief finger See Operators Manual for NORMAL HELIX AND REVERSE HELIX PROBLEM Traverse speed is too slow Possible Cause Remedy Reason Lineal bearing in the A Readjust bearings for properten When bearing preload is too tight it carriage are set too tight sion for more detail see lineal causes excessive loading to drive the bearing replacement in the carriage adjustment section of the manual When traverse belt is disengaged the proper traverse load is 2 to 3 lbs Use a tension scale to check A general guide only PROBLEM Spin Drive cranks up and down too hard The two top and two bot A Tighten down the locknut until it Have enough play so the crank turns tom pivot screws are bottoms out and back off 1 2 turn snugly but during operation it is free compressing the conical Check to see if there is a cone washer too tight shape to the washer Four 4 pivot points Check screw adjust B Loosen set screw and check ment tension on nylon
69. will be connected to a supply circuit protected by a properly sized circuit breaker or fuse SEE SERIAL NUMBER PLATE FOR FULL LOAD AMP RATING FOR YOUR MACHINE Never modify the plug provided with the machine if it won t fit the outlet have a proper outlet and circuit installed by a qualified electrician ALWAYS PROVIDE A PROPER ELECTRICAL GROUND FOR YOUR MACHINE AN IMPROPER CONNECTION CAN CAUSE A DANGEROUS ELECTRICAL SHOCK IF YOU ARE UNSURE OF THE PROPER ELECTRICAL GROUNDING PROCEDURE CONTACT A QUALIFIED ELECTRICIAN 10 PERIODIC MAINTENANCE DAILY MAINTENANCE IS SPECIFIED MN PAGE 4 OF THE OPERATOR S MANU AND IS TO BE PERFORMED BY THE OPERATOR LISTED BELOW ARE PERIODIC MAINTENANCE ITEMS TO BE PERFORMED BY YOUR COMPANY S MAINTENANCE DEPARTMENT Clean the tank and filter of the vacuum system wet or more often depending on the number of reel ground VACUUM SYSTEM IS OPTIONAL EQUIPMENT GREASE Use the grease fitting provided to grease the do tail with high quality lithium grease monthly Wipe off excess grease See FIG 7 Wipe and re oil with spray lubricant the grinding wheel diameter adjusting lead screw every three months Wipe off all excess lubricant See FIG 7 Check the gib adjustment on the Grinding wheel diameter adjustment every 3 months See FIG 7 Inspect the Grinding Wheel Poly V belt for cracking and adjust the belt tension per procedure called out in the adjustment section every s

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