TM-9-2520-238-34
M113A1 FOV, M113A2 FOV, M548 AND M548A1
TECHNICAL MANUAL; DIRECT SUPPORT AND GENERAL SUPPORT MAINTENANCE MANUAL; RIGHT ANGLE DRIVE, COOLING FAN; GEARCASE, TRANSFER; DRIVE ASSEMBLY, FINAL; DIFFERENTIAL, STEERING CONTROL; BRAKE, SINGLE DISK; CYLINDER ASSEMBLY, HYDRAULIC BRAKE
TM-9-2520-238-34 - Page 73 of 319
TM 9-2520-238-34
REPAIR COOLING FAN RIGHT ANGLE DRIVES A AND B — Continued
0015 00
17. Determine initial thickness of shim (1) as follows:
a.
Without installing shim (1), install spindle assembly (2), laminated shim (3), and bearing retainer housing (4) on
housing (5). Secure with four new key washers (6), and cap screws (7). Tighten screws only to the point where
gear backlash has been removed. Do not bend tabs on key washers at this time.
b.
With a thickness gauge, measure gap between spindle assembly housing (8) and housing (5).
c.
Calculate shim thickness using above measurement as follows: Shim thickness = Gap + 0.006
d.
Peel new laminated shim (1) to calculated thickness or next thinner laminate. Keep removed laminates for later use
in Step 18d below.
e.
Remove four cap screws (7), key washers (6), bearing retainer housing (4), laminated shim (3), and spindle
assembly (2) from housing (5).
0015 00-15
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