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9) Slide the hydraulic motor assembly on the splined end of the motor drive shaft, item 730, and line up the
pressure transfer holes of the brake housing and the motor adaptor. Tighten 12 capscrews, item 821, and
lockwashers, item 823, one turn at a time to evenly compress springs.
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. 23117) for hydraulic motor.
2) Install two new teflon seals, item 887, on each thrust plate, item 885. Press one of the thrust plates, together
with two teflon seals, onto the bearings, item 875, installed in the motor adaptor, item 800.
3) Install a new, well-greased gasket seal, item 869, on each side of the gear housing, item 861. Slide the gear
housing together with the gasket seals, onto the motor adaptor, lined up on two dowel pins. Tap on tight using
a soft headed hammer.
4) Install the gear set, item 881, in the gear housing. (The longer gear with the internal spline goes into the top
position.)
5)
Press the other thrust plate, complete with two new teflon seals, onto the bearings installed in the port end cover.
6)
Install the port end cover, item 870, together with two bearings, item 875, and a new ring seal, item 877, onto
the gear housing, lined up on the two dowel pins, item 865. Tap on tight using a soft headed hammer. Install
and lightly torque eight 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 eight 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 cover 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 COULD ENABLE AN
INSTALLATION OR SERVICE PROBLEM TO GO UNDETECTED AND
WILL 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”.
251 REV.970601
DANGER
SERVICE INSTRUCTIONS CONTINUED
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