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 TM 55-1905-223-24-10
4-17. Replace/Repair Gear Reducer. (FIGURE 4-9)
This task covers:
a. Removal, b. Disassembly, c. Repair, d. Assembly, e. Replacement.
INITIAL SETUP
Tools
Equipment Condition
Tool kit, general mechanic's,
Refer to the following paragraphs in this
maintenance manual.
Torque wrench (30-300 ft-lb),
Hydraulic hand pump removed. Para. 2-20.
5120-01-125-5190
Hydraulic failsafe brake removed.
Materials/Parts
Hydraulic winch system removed.
Carrier planet P/N 53180
Annular ball bearing P/N 53209
Annular ball bearing P/N 53209
Plain encased seal P/N 53181
Preformed packing P/N 53218
Preformed packing P/N 53215
Preformed packing (2) P/N 53189
Preformed packing (2) P/N 53195
Preformed packing (2) P/N 53199
Cleaning solvent, Item 5, Appendix C
Lubricating oil, Item 9, Appendix C
Compressed air
Lubricating grease, Item 7, Appendix C
REMOVAL
a. To remove gear reducer assembly from bow ramp winch drum remove the following parts from the winch
assembly:
(1) Prior to removal of gear reducer, set winch on end or block drum to maintain alignment for easy
removal.
(2) Loosen socket head capscrews (1, FIGURE 4-9), remove the headless straight pins (2) and remove
socket head capscrews (1).
(3) Remove socket head caps crews (36) from adapter (40) and remove adapter.
(4) Remove coupling (38), drum shaft (37), and packing (39) from winch assembly.
Change 1
4-41
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