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REASSEMBLY OF HYDRAULIC MOTOR
If the hydraulic motor was disassembled, the following procedure should be followed for reassembly:
1) Clean all parts thoroughly before reassembly and apply grease liberally to all seals. Use only new seals (seal
kit Part No. 23131) for hydraulic motor.
2) Install six new pocket seals, item 887, on each thrust plate, item 885. The seal kit includes a single strip of
rubber. Using a sharp knife, cut lengths to fit the openings in the thrust plates. Press one of the thrust plates,
together with six pocket seals, onto bearings, item 875, installed in motor adaptor, item 800, so that pocket
seals are against motor adaptor.
3) Install a well-greased body seal, item 869, on each side of gear housing, item 861. Slide the gear housing
together with the body seals, onto motor adaptor, lined up on two dowel pins. Tap on tight using a soft headed
hammer.
4) Install gear set, item 881, in gear housing (The longer gear with the internal spline goes into the top position).
5) Press the other thrust plate, complete with six new pocket seals, onto bearings installed in port end cover so
pocket seals are facing port end cover.
6) Install port end cover, item 870, together with two bearings, item 875, and new ring seal, item 877, onto gear
housing, lined up on two dowel pins, item 865. Tap on tight using a soft headed hammer. Install and lightly torque
four hex capscrews, item 951, and lockwashers, item 953, to approximately 50 ft-lb (70 Nm).
7) Plumb winch assembly to a hydraulic supply and torque motor capscrews according to the following procedure:
- Ensure that circulation supply flow is being supplied to the brake housing.
- Run the winch, with no load, in the hoisting direction at reduced speed
(approximately 30% of maximum hydraulic volume).
- With winch running, evenly tighten four capscrews, item 951, to 200 ft-lb (270 Nm).
- Test motor operation by running winch at full speed in both directions.
IMPORTANT: Before operating the winch, add lubricating oil up to the level of the end housing oil fill port.
(Refer to INSTALLATION INSTRUCTIONS for location of fill port. Refer to APPENDIX A
for oil volume required.)
To ensure proper reassembly, run the winch in both directions without load.
LIFTING A LOAD WITH A NEWLY SERVICED WINCH WILL
ENABLE AN INSTALLATION OR SERVICE PROBLEM TO GO
UNDETECTED AND ALLOW THE LOAD TO DROP CAUSING
PROPERTY DAMAGE, SEVERE INJURY OR DEATH. TO ENSURE
PROPER REINSTALLATION, REFER TO PROCEDURES AND
TESTS DESCRIBED IN “INSTALLATION” AND
“OPERATING INSTRUCTIONS”.
SERVICE INSTRUCTIONS CONTINUED
271 REV.970407
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