PREVENTIVE MAINTENANCE CHECKS AND SERVICES - CONTINUED

TM 9-2320-270-20-1

PREVENTIVE MAINTENANCE CHECKS AND SERVICES - CONTINUED

S SEMIANNUALLY

A ANNUALLY

ITEM

INTERVAL

ITEM

TO BE

INSPECTED

NO.

PROCEDURE

Hydraulic

Retarder Pedal

CAUTION

Long continuous use of hydraulic retarder will

raise transmission oil temperature and may

cause damage to transmission.

Test retarder pedal for response when slowing down

vehicle. Observe sticking or binding of retarder

pedal.

Brakes

a. Test braking response to brake pedal.

Vehicle should slow down immediately.

b. Reach a desired speed and lightly apply

brake pedal with steady force. Vehicle should stop

smoothly without noticeable side pull or chatter.

c. After stopping vehicle and with transmission

in drive 1. Release brake pedal. The wheel brakes

should release immediately and without difficulty.

d. With vehicle on incline and transmission in

neutral, engage parking brakes. Vehicle should

not move.

a. Check vehicle response to steering wheel

Steering

action. Vehicle should respond instantly.

b. Turn steering wheel to extreme left, then

right, to detect hard steering, steering backlash,

or shimmy.

c. With vehicle on straight, level terrain,

lightly hold steering wheel to detect pull or wander.

Engine

a. Check engine operation at all speeds.

Insure that engine does not exceed governed speed

(2100 rpm).

b. Observe engine instruments to detect mal-

functions.

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