HENNESSY INDUSTRIES Coats IBS 2000, Руководство по обслуживанию и руководство по устранению неполадок

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Service Manual — COATS Model IBS 2000 • 31
2. Remove the weight tray and weight tray shield.
3. Unplug the arm cable from P7 (Inner Arm) of the
CPU board.
4. Loosen the clamp screw and remove the plastic
arm housing.
5. Disconnect the A pot from the Arm PCB
(Distance).
6. Rotate the arm out so the A gear and set screw are
positioned on top.
7. Loosen the set screw with an Allen wrench and
slide the gear off.
8. Loosen the 1/2" retaining nut on the A pot shaft,
and slide the pot out.
9. Reinstall in reverse order. Do not completely
tighten the set screw in the A gear until the pot is
adjusted properly.
10. Adjust the A pot with a screw driver or pot tool
until it is with in the appropriate range. Refer to the
ARM CALIBRATION procedures.
11. Perform ARM CALIBRATION and BALANCER
CALIBRATION.
12. Perform FUNCTION CHECKS.
Small D Gear Assembly Replacement
Note: The D Potentiometer Adjustment pro-
cedure is included in this section.
1. Unplug the balancer.
2. Remove the weight tray and weight tray shield.
3. Unplug the arm cable from P7 (Inner Arm) of the
CPU board.
4. Loosen the clamp screw and remove the plastic
arm housing.
5. Disconnect the D pot (Diameter) from the Arm PCB.
6. Loosen the set screw in the D gear with an Allen
wrench. Pull the arm subassembly back enough so the
small D gear clears the large D gear. Slide the gear off.
7. Loosen the 1/2" retaining nut on the D pot and slide
the pot out.
8. Reinstall in reverse order.
9. Adjust the D pot by sliding the 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 CALIBRATION and BALANCER
CALIBRATION.
12. Perform FUNCTION CHECKS.
Large D Gear Replacement
1. Unplug the balancer.
2. Remove the weight tray and weight tray shield.
3. Disconnect the arm cable from P7 (Inner Arm) of
the CPU board.
4. Loosen the screw on the clamp and remove the
plastic arm housing.
5. Remove the screw and nut from the handle
assembly and slide it off.
6. Loosen the four (4) Allen head bolts from the arm
bracket and remove the bracket cover.
7 . Slide the arm sleeve (with the large D gear on it) off
the arm rod.
8. Remove the three (3) gear retaining screws.
9. Remove the large D gear and flange bearing.
10. Replace large D gear and reinstall in reverse
order.
11. Adjust D pot within tolerance. See SMALL D
GEAR REPLACEMENT.
12. Perform ARM CALIBRATION and BALANCER
CALIBRATION.
13. Perform FUNCTION CHECKS.
A/D Arm Subassembly Replacement
1 . Unplug the balancer.
2. Remove weight tray and weight tray shield.
3. Follow the steps for A/D ARM REPLACEMENT.
4. Loosen the clamp screw and remove the plastic
arm housing.
5. Remove the screw and retaining washer from the
back of the arm rod.
6. Remove the spring.
7. Follow the instructions for the A GEAR & POT.
REPLACEMENT.
8. Follow the instructions for the D GEAR & POT.
REPLACEMENT.
9. Slide the subassembly casting and flange bearing
off the arm rod.
10. Install new subassembly and reinstall in reverse
order.
11. Adjust A & D pots.
12. Perform ARM CALIBRATION and BALANCER
CALIBRATION.
13. Perform FUNCTION CHECKS.
Direct Drive