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 TM 55-1905-223-24-10
NOTE
Damage or accumulated hours of operation on a component justify replacement.
c. Dry all metal parts with compressed air and replace all packing and seals.
ASSEMBLY
a. Coat all packing with lubricating oil and seals with lubricating grease prior to as sembly.
b. Into housing (12), install input shaft (25), spacer (10), bearing (28), thrust bearing (13), third stage pinion gear
(14) and headless straight pin (27).
c. Onto housing assembly (12), install second stage pinion gear (24), second stage ring gear (15) and carrier and
gear assembly (18).
d. Install on carrier and gear assembly (18), preformed packing (16), ring spacer (17), carrier and gear assembly
(22), and first stage ring gear (19).
e. On ring gear (19), install preformed packing (21), cover plate (23) with thrust washer, headless straight pin (26),
and socket head capscrews (20).
f. At opposite end of gear reducer assembly, install preformed packing (7), third stage ring gear (29) and third stage
carrier planet subassembly (40) consisting of planet gear shaft (44), headless straight pin (3), planet gear (4),
bearing spacer (5), thrust bearing (9) and pin planet bearing (6).
g. Install bushing (36), retainer ring (39), bushing (37), carrier bearing (38), and preformed packing (31).
h. Install housing (32), carrier bearing (42), seal (41), preformed packing (33), carrier seal (25), and socket head
capscrews (43).
i. Install threaded plugs (11), threaded plug (2) and all but one threaded plug of (34). Fill gear box with lubricating
oil and install threaded plug (1) and last threaded plug (34).
REPLACEMENT
a. Prior to installing gear reducer into winch drum, ensure drum cavity is clean and free of grit and dirt.
Clean
mating surfaces of drum and gear reducer to ensure tight fit.
4-46
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