TM-9-2320-283-20-1
TRUCK TRACTOR, LINE HAUL, 50,000 GVWR, 6X4, M915A1
TECHNICAL MANUAL; ORGANIZATIONAL MAINTENANCE PART 1 OF 3
DECEMBER 1983
TM-9-2320-283-20-1 - Page 82 of 926
TM 9-2320-283-20-1
PRINCIPLES OF OPERATION.
1-17.
FRONT AXLE AND SUSPENSION.
LEAF
SPRINGS.
Absorb and minimize amount of road shock transmitted to vehicle frame.
SHACKLE.
Swinging support that permits leaf spring to vary in length as it is deflected.
BRAKE AIR
CHAMBER.
Pressure is supplied to chambers from air system to mechanically actuate brake mechanism.
(Refer to brake system, para 1-20c).
KNUCKLE
AND KINGPIN
ASSEMBLY.
Moveable joint between the wheel and
axle I-beam.
DRUM.
Houses wheel brakes.
Serves as mount for front wheels.
STEERING ARM.
Connects to power steering drag link.
(Refer to para 1-22).
TIE ROD ASSEMBLY.
Connects left and right knuckles for synchronized movement of both wheels.
SHOCK ABSORBERS.
Supplement spring and stabilize spring fluctuations caused
TA 236784
1-62
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