STEERING AND BRAKE SYSTEM - TM-5-2410-233-230039

TM 5-2410-233-23

THEORY OF OPERATION - CONTINUED

0003 00

STEERING AND BRAKE SYSTEM

STEERING

CLUTCH LEVERS

STEERING

CONTROL VALVE

STEERING

CLUTCH

386-471

BRAKE

Steering Clutch Levers. Levers serve as mechanical linkage to steering control valve.

Steering Control Valve. The valve is connected mechanically to the steering clutch levers. The valve directs the flow of

pressurized oil in response to the movement of the levers.

Steering Clutch. There is one steering clutch for each track. They control the steering of the tractor. Mechanically oper-

ated, each steering clutch is controlled by the steering clutch lever in the operator's station. When turning left, the left

clutch is released which causes the left track to stop moving and act as a pivot for the tractor to turn on. The same thing

happens when turning right.

Brakes. The tractor has two band-type brakes (one on each steering clutch drum) which are used to stop the movement

of the tractor and to assist with the steering of the tractor. When the steering clutch levers are pulled completely out or

the brake pedals are depressed, the bands tighten around the steering clutch drum.

ELECTRICAL SYSTEM

Batteries. The batteries provide power for three circuits; the charging circuit, the starting circuit and the lighting (low

amperage) circuit. Two 12-volt batteries are connected in series to provide 24-volt, 1200 CCA starting power.

Alternator. The 24-volt, 50-amp alternator, an integral part of the charging circuit, provides current when the engine is

running.

Starter Motor. Part of the starting circuit, the starter motor is used to turn the engine flywheel fast enough to get the

engine to start running.

0003 00-5