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 286 of 985

TM 9-2320-279-20-1

Troubleshooting Malfunctions (Cont)

Table 2-9. Troubleshooting (Cont)

Malfunction

Test or Inspection

Corrective Action

HEAVY-DUTY WINCH (CONT)

4. WINCH OPERATION IS JERKY, SLOW, OR DOES NOT WORK (M984).

Step 1. Refer to HYDRAULIC SYSTEM Troubleshooting.

If problem remains, go to Step 2.

Step 2. Check for loose line connections and fittings at heavy-duty winch motor and brake.

Tighten loose lines and fittings. Replenish oil as required (LO 9-2320-279-12).

NOTE

Motor will normally be hot during heavy use.

Step 3. Check heavy-duty winch motor for overheating and unusual noise.

If heavy-duty winch motor is smoking, hot, or makes unusual noise, notify the

supervisor.

5. FAIRLEAD TENSlONER MOTOR DOES NOT OPERATE (M984E1).

Step 1. Check for loose connections, damaged or kinked pilot line.

Tighten loose connections, repair damaged or kinked pilot line.

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