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REPLACEMENT OF HYDRAULIC GEAR MOTOR ASSEMBLY:
1) Liberally grease three new O-rings, item 801, and install into recesses on motor adaptor, item 800. Install
new, well-greased O-ring, item 707, on flange of motor adaptor.
2) Slide hydraulic motor assembly on splined end of motor drive shaft, item 730, and line up pressure transfer
holes of clutch housing and motor adaptor. Tighten nine capscrews, item 931, and lockwashers, item 541.
REASSEMBLY OF HYDRAULIC GEAR MOTOR:
If the hydraulic gear 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 thrust plates, together with
two teflon seals, onto bearings, item 875, installed in motor adaptor, item 800.
3)
Install new, well-greased gasket seal, item 869, on each side of gear housing, item 861. Slide gear housing together
with gasket seals, onto motor adaptor, lined up on two dowel pins. Tap on tight using soft headed hammer.
4) Install gear set, item 881, in gear housing. (Longer gear with internal spline goes into top position.)
5)
Press other thrust plate, complete with two new teflon seals, onto bearings installed in 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 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.
8) Install new, well-greased O-ring, item 879, into transfer tube assembly, item 844. Install transfer tube
assembly through port end cover, item 870, and engage motor drive shaft, item 730.
9) Install new, well-greased O-ring, item 113, into tube locator, item 848, and install tube locator into transfer tube
housing, item 846. Press two slotted spring pins, item 859, which stop tube locator from spinning, into place.
10) Install new, well-greased O-ring, item 112, onto transfer tube housing, item 846. Install transfer tube housing,
with pressure reducing valve, item 841, attached, onto port end cover, item 870. Fasten with two socket head
capscrews, item 849, and high collar lockwashers, item 847.
SERVICE INSTRUCTIONS CONTINUED
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”.
313 REV.970901
DANGER
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