TM 9-2320-272-10
1-17. CONTROL SYSTEM OPERATION (Contd)
d.
Steering System Operation.
The steering system is identical for all models covered in this manual. It is a hydraulically assisted system that
provides ease of turning and control for the operator. Major components of the steering system are:
A
OIL RESERVOIR AND STEERING PUMP - Combined in one unit, the reservoir serves as an oil fill point and
the pump creates pressure.
B
ACCESSORY DRIVE BELTS - Transmits mechanical power from accessory drive pulley to steering pump
pulley to drive the steering pump.
C
STEERING WHEEL - Serves ’as manual steering control for the operator.
D
STEERING COLUMN UNIVERSAL JOINT - Connects, at an angle, the steering wheel column and input
shaft of power steering gear.
E
POWER STEERING ASSIST CYLINDER - Receives hydraulic pressure from the steering gear to assist in
turning the front wheels.
F
STEERING KNUCKLE - Serves as the pivot point and link for the front wheels from the tie rod assembly.
G
TIE ROD ASSEMBLY - Connects steering knuckles so both wheels will turn at the same time.
H
STEERING ARM - Connects drag link to steering knuckle.
I
DRAG LINK - Transmits movement from steering arm to pitman arm.
J
PITMAN ARM - Transfers torque from power steering gear to drag link.
K
STEERING GEAR - Converts hydraulic pressure from steering pump to mechanical power at pitman arm.
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