TM 9-2320-272-24-4
5-51. GEAR UNIT AND MAIN SHAFT MAINTENANCE (Contd)
c . Cleaning and Inspection
For general cleaning instructions, refer to para. 2-14.
1.
For general inspection instructions, refer to para. 2-15.
2.
3.
Measure thickness of thrust washer (11). If thrust washer (11) thickness is less than 0.092 in.
(2.354 mm), discard thrust washer (11).
4.
Measure clearance from thrust washer (11) to front sun gear (10). If clearance from thrust
washer (11) to front sun gear (10) exceeds 0.005 in. (0.127 mm), discard thrust washer (11).
Measure thickness of thrust washers (6) and (9). If thickness is less than 0.091 in. (2.31mm),
5.
discard thrust washers (6) and (9).
Inspect thrust washers (6) and (9) for scoring. If scored, discard thrust washers (6) and (9).
6.
Measure clearance of two sun gear shaft bushings (4) on main shaft (5). If clearance exceeds
7.
0.006 in. (0.152 mm), discard two sun gear shaft bushings (4).
Measure clearance of front planetary carrier (7) bushing (8) on front sun gear (10). If clearance
8.
exceeds 0.005 in. (0.127 mm), discard front planetary carrier (7) bushing (8).
Measure clearance of sun gear shaft (3) on center support bushing. (2). If clearance exceeds 0.006 in.
9.
(0.152 mm), discard sun gear shaft (3), or replace bushing (2) in center support (1) (para. 5-50).
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