TM-9-2350-261-20-1
CARRIER, M113A2, M577A2, M1064, M1068, M1059 AND M901A1
TECHNICAL MANUAL; UNIT MAINTENANCE MANUAL - VOLUME 1 OF 4
TM-9-2350-261-20-1 - Page 84 of 346
TM 9-2350-261-20-1
THEORY OF OPERATION — Continued
0003 00
TRACKS AND SUSPENSION COMPONENTS
The carrier moves on its tracks and suspension system. The components and their function are:
Road wheels (1), 10 to each side, carry the weight of the carrier.
Road wheel arms (2), five to each side, are splined to individual torsion bars (3) to suspend the carrier.
Torsion bars (3), one for each road wheel arm, extend the width of the carrier and are firmly anchored to the hull on the
side opposite its road wheel arm.
Tracks (4), on each side, consist of track shoes with rubber pads. Shoes are linked together by pins to form a continuous
rolling surface for the road wheels. Track guides keep track centered on the road wheels.
Sprockets (5), mounted on each final drive, power the tracks.
Idler wheels (6), pushed rearward by track adjusters (7), keep the track under tension.
Shock absorbers (8) at first, second, and fifth wheel positions, stabilize the carrier.
000300-9
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