TM-9-2520-238-34 Direct Support for M113 Family Major Assemblies Download
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TM 9-2520-238-34 EQUIPMENT DESCRIPTION AND DATA — Continued 0002 00 CARRIER MOVING TO LEFT WITH LEFT STEERING BRAKE APPLIED. When left brake is applied, the external spur gears and spur gearshafts continue to rotate at the same velocity. Since the brake impedes or even stops the rotation of the brake drum hub, the left external gears, in mesh with the hub gear, begin to rotate on their own axes. The gearshafts, fixed to the external gears, rotate in a direction which slows the rotation of the left steering spur gear, and the track speed on the left side of the carrier decreases. At the same time, the right gearshafts, in mesh with companion left gearshafts, rotate in the opposite direction, which speeds rotation of right steering spur gear, and increases track speed on right side of carrier. Steering Control Differential Left Steer Torque Path 0002 00-9