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Service Manual — COATS Model IBS 2000 • 3

2000 Balancer

Simplified Block Diagram

Piezo

Fan

Phase Converter or Jumper

AC Power

On/Off

Interlock
Switch (NO)

Closed with
hood down

Encoder

Motor

Main CPU

A

Motor

Controller

Power

Supply

Display

Board

LCD Board

Hood Switch (NO)

Closed with hood down

Manual Start

+12
- 12
+ 5

Interlock switch only on models
produced after 12-22-97.

Note:

Note:

The normal position is when the
magnet is next to the switch.

NC = Normally Closed
NO = Normally Open

D

Direct Drive

Summary of Contents for Coats IBS 2000

Page 1: ...65 615 641 7533 800 688 6359 Manual Part No 9112388 01 HENNESSY INDUSTRIES INC Manufacturer of AMMCO COATS and BADA Automotive Service Equipment and Tools Revision 12 00 Service Manual and Troubleshoo...

Page 2: ...ii Service Manual COATS Model IBS 2000 Direct Drive...

Page 3: ...Procedure 21 Spin and Stop Diagram 21 Motor Controller Diagram 22 Optical Encoder Checking Procedure 23 Rotary Shutter Checking Procedure 23 Piezo Output Test 23 Piezo Crystal Checking Procedure 24 B...

Page 4: ...h a current rating equal to or more than that of the equipment should be used Cords rated for less current than the equipment may overheat Care should be taken to arrange the cord so that it will not...

Page 5: ...n at the planes of the piezos the imbalance forces at the wheel planes can be calculated by using the distance from the force transducer planes to the wheel correction planes These wheel imbalance for...

Page 6: ...easier to operate and calibrate Single PCB replacement Proven technology Main CPU Function Receives data from all input devices piezos encoder A D pots hoodswitch Processes the information and sends...

Page 7: ...ch NO Closed with hood down Encoder Motor Main CPU A Motor Controller Power Supply Display Board LCD Board Hood Switch NO Closed with hood down Manual Start 12 12 5 Interlock switch only on models pro...

Page 8: ...7 9 A dial indicator runout gauge Ammco part 2850 or 29752 10 Sockets 3 8 7 16 3 4 1 2 9 16 inch a speed han dle or ratchet 11 A drill and 1 8 drill bits pop rivet gun and 1 8 rivets 12 A 7 16 3 8 box...

Page 9: ...he washer and the retaining ring 5 Attach the hood spring The straight end goes at the bottom of the machine the hook end into the hood Note The hood must be in the raised position to install the spri...

Page 10: ...achine fails to brake and continues to coast see BAL ANCER DOES NOT STOP 11 The balancer should now have weight values and position lights displayed 12 Rotate the wheel so the top and bottom position...

Page 11: ...he inside plane Press start the reading should be as follows Inner Left Plane 4 00 0 15 oz Outer Right Plane 0 00 0 15 oz Inner Position flashing 4oz at bottom dead center 1 2 inch 6 If the above resu...

Page 12: ...E Separation Accuracy Check Something Touching The Motor Or Distance Arm Causes inability to calibrate the balancer or achieve acceptable PLANE SEPARATION Check for anything touching the motor Rotary...

Page 13: ...ect or not received the balancer generates the following error codes in the weight amount LED s on the display LCD ERR unable to communicate with LCD Displayed when the Display board is unable to comm...

Page 14: ...MC motor controller 16 The Arm Was Not In The Correct Position Displayed during Arm Calibration if you get out of sequence Press CONTINUE to repeat or CANCEL to quit 17 No Encoder Pulses At Start Up...

Page 15: ...alancer display appear No Yes Yes Turn the power on Continue troubleshooting See induvidual troubleshooting char t Does the fan turn on Is the fan connected Turn the power off unplug the unit and conn...

Page 16: ...he MC board Yes Troubleshoot AC Replace motor controller Yes Does an error message appear Does the wheel start to spin Does it complete the spin Check Replace control cable Replace motor controller Ye...

Page 17: ...u have 5v on P12 pin 3 of CPU Unplug P3 on motor controller Check for 5v on pin 3 CPU No Replace the motor controller Yes No Replace the CPU Does voltage on P12 6 drop to 45v during stop cycle Yes No...

Page 18: ...ial cable Is it plugged in Perform loop back test with new cable Does unit work No Yes Replace communication cable Yes Plug cable in and recheck No Note to perform loop back test refer to that section...

Page 19: ...tic The balancer must be displaying information to proceed Does this indicate a problem Replace Keypad No Yes No Yes Check keypad connections Does this correct the problemt Was keypad locked up at pow...

Page 20: ...oes display show LCD ERR Yes Yes Does it beep 5 seconds after power on Replace display board Adjust contrast Yes Yes Check LCD cable LCD No Adjust contrast Are all AC DC voltages correct Troubleshoot...

Page 21: ...68 Replace display board Replace display board No Disconnect P10 power on the CPU Check 12v again No Replace CPU Yes NOTE Turn the power off While holding down the first from the left rim weight locat...

Page 22: ...diagnostic check balancer must be displaying merchandising message to proceed Troubleshooting complete No Yes Is LED backlight cable plugged in Check for 4 vdc P4 2 of the display board No Yes Replace...

Page 23: ...Troubleshooting complete No Yes Replace display board Turn unit off then on Does EE ERR go away No LED Display Perform pre diagnostic check balancer must be displaying merchandising message to proceed...

Page 24: ...Are the readings stable Check Cable connections at CPU board and Arm Replace the cable Troubleshooting comptete Calibrate the arm Calibrate the balancer Yes Use VOM to check supply voltage on the A D...

Page 25: ...agram 112368 in the back of this book 1 Check for 5 vdc on the CPU location P12 CON TROL pins 1 3 and 6 Tabs 2 4 and 7 of the Modapt Adapter If Voltage is not present refer to the DC volt age checks 2...

Page 26: ...22 Service Manual COATS Model IBS 2000 Direct Drive Motor Controller Diagram...

Page 27: ...e position changes the rotary shutter has slipped Refer to the Rotary Shutter Replacement pro cedure to tighten and recheck Note This procedure can be used to check for loose faceplate however mark th...

Page 28: ...piezo the readings in step 6 and 7 will be opposite Balancer Display Diagnostics This is a diagnostic menu that should only be accessed by authorized Hennessy service personnel It allows you to perfo...

Page 29: ...e the board and disconnect the key pad ribbon Caution DO NOT raise the board more than 4 5 inches or you will destroy the keypad rib bon 10 Replace the defective Display board and reinstall in reverse...

Page 30: ...r Display Board and LCD Board replacement 3 Replace defective Touch Panel 4 Plug in balancer 5 Perform FUNCTION CHECKS Hood Magnet Replacement 1 Remove the rubber hood stop from the hood bracket on th...

Page 31: ...ow all trouble shooting procedures after replacing a board Motor Controller Board Replacement 1 Unplug the balancer 2 Remove weight tray and weight tray shield 3 Disconnect the incoming power from T1...

Page 32: ...acing the optical encoder 7 Install new optical encoder 8 Install rotary shutter 9 Install rear end bell 10 Connect optical encoder cable to the CPU Board 11 Perform FUNCTION CHECKS 12 Install weight...

Page 33: ...de portion behind the threads This runout should not exceed 001 1 thousandths 7 If the runout is excessive loosen socket head bolt and rotate the faceplate assembly 90 degrees 1 4 turn relative to the...

Page 34: ...different from the 1050 The arm assembly is repairable and you should refer to the A D Arm Exploded Parts View in this section and illustrated parts list in this manual for individual parts identific...

Page 35: ...he arm sub assembly back so the small gear clears the large D gear 10 Rotate the small gear until it is with in the appropri ate range Refer to the ARM CALIBRATION procedures 11 Perform ARM CALIBRATIO...

Page 36: ...32 Service Manual COATS Model IBS 2000 Direct Drive IBS 2000 Wiring Diagrams...

Page 37: ...Service Manual COATS Model IBS 2000 33 Direct Drive...

Page 38: ...34 Service Manual COATS Model IBS 2000 Direct Drive...

Page 39: ...Service Manual COATS Model IBS 2000 35 Direct Drive...

Page 40: ...9112388 01 12 00 Copyright 1998 Hennessy Industries and COATS All Rights Reserved Printed in USA...

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