TM-9-2320-280-10 HMMWV Operator Manual Download
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TM 9-2320-280-10 Table 3-1. Troubleshooting (Cont'd) MALFUNCTION TEST OR INSPECTION CORRECTIVE ACTION BRAKES 15. POOR SERVICE BRAKING ACTION All causes. Notify unit maintenance. 16. SERVICE BRAKES DRAGGING All causes. Notify unit maintenance. 17. BRAKE WARNING LAMP ASSEMBLY ON Step 1. Check to see if parking brake is partially applied. Disengage parking brake. Step 2. Check for low brake fluid level (TM 9-2320-280-20). Add brake fluid (Appendix G). Step 3. Other causes. Notify unit maintenance. 18. PARKING BRAKE FAILS TO HOLD VEHICLE Clean and adjust parking brake (para. 3-13) If parking brake still fails to hold vehicle, notify unit maintenance. WHEELS AND TIRES 19. WHEELS WOBBLE OR SHIMMY Step 1. Check to see if wheel lug nuts are loose. Tighten loose lug nuts (para. 3-26) and notify unit maintenance to properly torque lug nuts. Step 2. Inspect for mud or dirt build up inside the rim. Remove any mud or dirt build up. Step 3. Other causes. Notify unit maintenance. 20. EXCESSIVE OR UNEVEN TIRE WEAR Step 1. Check tire air pressure. Inflate or deflate tires to correct air pressure. Step 2. Other causes. Notify unit maintenance. 21. VEHICLE WANDERS TO ONE SIDE ON LEVEL PAVEMENT Step 1. Check tire air pressure. Inflate or deflate tires to correct air pressure. Step 2. Other causes. Notify unit maintenance. 3-6