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 21 of 319
TM 9-2520-238-34
EQUIPMENT DESCRIPTION AND DATA — Continued
0002 00
TRANSFER GEARCASE F.
Transfer gearcase F is used on the M548A1 carrier. There is no engine disconnect remote control
lever. In place of a hydraulic pump there is a spacer and instead of an oil level gauge rod and guide, there is a breather. Unlike
gearcases A through C and E, the two-groove pulley is mounted on the hub of the first intermediate gear, not the second.
Transfer Gearcase E Service Spare for Gearcases A through C – Rear View
Transfer Gearcase F – Rear View
STEERING CONTROL DIFFERENTIAL
GENERAL.
The steering control differential steers the carrier by means of internal brakes which control gear trains to provide
rotational velocity differences between output shafts. A thorough understanding of the construction and function of each
assembly as described below is essential for proper maintenance of the differential.
0002 00-6
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