TM-9-2320-280-34
TRUCK, UTILITY: M998 SERIES
TECHNICAL MANUAL; DIRECT SUPPORT AND GENERAL SUPPORT MAINTENANCE
JANUARY 1996
TM-9-2320-280-34 - Page 45 of 1258
TM 9-2320-280-34
Table 2-1. Mechanical Troubleshooting (Cont ’d)
MALFUNCTION
TEST OR INSPECTION
DIFFERENTIAL
49.
DIFFERENTIAL NOISY
Step 1.
Check differential and axle free play tolerance (para 9-11).
Step 2.
Replace differential (para. 9-5).
END OF TESTING!
BRAKES
50.
NOISY BRAKES
Refinish brake rotors (para. 10-3)
51.
BRAKE PEDAL PULSATION
Check brake rotor lateral runout (para. 10-3). Refinish any rotor not meeting specifications.
END OF TESTING!
52.
ERRATIC BRAKING ACTION
Check for seized or binding brake caliper pistons. Repair any binding or seized caliper pistons (para. 10-4).
END OF TESTING!
WHEELS, SUSPENSION, AND STEERING
53.
POOR DIRECTIONAL STABILITY OR UNEVEN TIRE WEAR
Check front and rear wheel alignment (para. 9-8).
END OF TESTING!
54.
NOISY SUSPENSION
Check for broken or cracked spring seats. Replace any damaged spring seats (para. 12-5).
END OF TESTING!
55.
HARD STEERING OR EXCESSIVE PLAY IN STEERING
Check front wheel alignment (para 9-8).
END OF TESTING!
2-19
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