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TM 9-2350-287-34
5-2. COOLING FAN DRIVE ASSEMBLY REPAIR (continued).
12.
Using depth micrometer, measure the distance from end of gearshaft (17) to flange on retainer (14) and record
dimension.
13.
14.
15.
Subtract dimension recorded
Record dimension etched on
in step 12 from dimension
bottom of gear shaft (18).
recorded in step 8. Record dimension.
Subtract dimension recorded instep 13 from dimension recorded in step 14, and record the result as the shim
(8) thickness required.
16.
Using shim (8) thickness determined in step 17, install new preformed packing (9), new shim (8), and bevel
gearcase assembly (7) in fan drive assembly (3).
17.
Secure bevel gearcase assembly (7) with two screws (6). Torque screws (6) between 19 and 21 ft-lb (25 and
28 N•m).
18.
Repeat steps 9 through 17 for remaining bevel gearcase assembly (7).
5-9
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