TM-9-2350-238-34-1

HULL AND RELATED COMPONENTS, RECOVERY VEHICLE, FULL TRACKED: LIGHT, ARMORED, M578

TECHNICAL MANUAL; DIRECT SUPPORT AND GENERAL SUPPORT MAINTENANCE MANUAL

MARCH 1994

  TM-9-2350-238-34-1 - Page 141 of 292

TM 9-2350-238-34-1
NOT E
To increase backlash, transfer shims
from shaft bearing housing to drive
gear bearing housing. To decreas e
backlash, transfer shims from driv e
gear bearing housing to shaft bearin g
housing. Each lamination of shim is
0.002 in. (0.005 cm) thick. Abou t
0.001 in. (0.003 cm) change in
backlash requires transfer of two
shim laminations .
28
Apply white enamel to four or five teeth o f
bevel gear set spiral gear (12) and bevel
gear set spiral pinion gear (23). Rotate
gear set shouldered shaft (13). Examin e
wear pattern on gear teeth. Wear patter n
should be about one half length and depth
of tooth and centered on tooth face (p
2-97). Correct backlash (step 27) if wear
pattern is not correct.
29
Remove three capscrews (21) and driv e
gear bearing housing (17). Using bearin g
cup replacer (item 14, appx E), install new
plain encased seal (27) with open lip
facing into drive gear bearing housing.
2-12 9


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