TM-9-2320-279-20-1

M977 SERIES, 8x8 HEAVY EXPANDED MOBILITY TACTICAL TRUCKS (HEMTT)

TECHNICAL MANUAL; MAINTENANCE INSTRUCTIONS; ORGANIZATIONAL MAINTENANCE, VOLUME 1 OF 3

TM-9-2320-279-20-1 - Page 268 of 985

TM 9-2320-279-20-1

Troubleshooting Malfunctions (Cent)

Table 2-9. Troubleshooting (Cent)

Vlalfunction

Test or Inspection

Corrective Action

—

FIFTH WHEEL

1

0

EXCESSIVE MOVEMENT OF TRAILER KINGPIN IN FIFTH WHEEL.

FIFTH WHEEL

)

Step 1. Check for loose, missing, or broken mounting hardware.

Tighten or replace loose hardware (para 14-19).

Step 2. Check for loose or broken kingpin jaws.

Replace fifth wheel assembly (para 14-19).

SELF-RECOVERY WINCH

1. WINCH OPERATION IS JERKY, SLOW, OR DOES NOT WORK.

Step 1. Check position of selector valve on fender.

Put valve in proper position (TM 9-2320-279-10).

Step 2. Go to HYDRAULIC SYSTEM Troubleshooting and make the checks shown in

MALFUNCTIONS 1 and 2. Return to this section if problem has not been solved.

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