Table 2-1. Preventive Maintenance Checks and Services (Cont)

TM 5-2420-224-20-1

Table 2-1. Preventive Maintenance Checks and Services (Cont)

NOTE: Within designated interval, these checks are to be performed in the order listed.

INTERVAL DEFINITIONS

Q-Quarterly

S-Semiannually

A-Annually

Interval

Item

Item to be Inspected:

No.

Procedure: Check for and have repaired, filled, or adjusted as needed.

AXLE

Check operation of differential Iock/four-wheel drive.

●

BRAKES

a. Test braking response to brake pedal. Vehicle should slow down

●

immediately.

●

b. At speed of approximately 20 mph, apply brake pedal with steady

force. Vehicle should stop smoothly without noticeable side-pull or chatter.

●

c. With vehicle on downgrade and transmission in neutral, engage

parking brake. Vehicle should not move and indicator light should be on.

STEERING

●

Check vehicle response to steering wheel action. Vehicle should respond

instantly. With vehicle on straight level ground, lightly hold steering

wheel to check for pull or wander. With vehicle in motion, free play

should be no more than approximately 1-1/2 in. (39 mm) in either

direction.

ENGINE

●

a. Check engine operation at all speeds. Ensure engine does not exceed

governed speed (2850 50 rpm).

●

b. Observe engine instruments to detect malfunctions.

SUSPENSION

●

Observe how vehicle responds to road shocks. Shifts, knocks, or

constant bouncing indicate possible malfunction.

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