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 285 of 985

TM 9-2320-279-20-1

Troubleshooting Malfunctions (Cent)

12-15. TROUBLESHOOTING INSTRUCTIONS (CONT).

I

Table 2-9. Troubleshooting (Cent)

ilalfunction

Test or Inspection

Corrective Action

HEAVY-DUTY WINCH (CONT)

!.2. WINCH WILL NOT OPERATE IN EITHER DIRECTION (M984E1).

Step 1. Refer to HYDRAULIC SYSTEM Troubleshooting.

QUICK

DISCONNECT

TA476070

Step 2. Check winch motor quick disconnects for proper installation or damage.

Fully engage quick disconnects or repair damaged quick disconnects.

Step 3. If problem remains, notify the supervisor.

1.

WINCH MAKES EXCESSIVE OR UNUSUAL NOISE (M984).

Step 1. Check hydraulic oil level (LO 9-2320-279-12).

Replenish oil.

Step 2. Inspect winch hydraulic motor for loose mounting and leaks.

Tighten loose mountings. Tighten hydraulic connections or notif y the supervisor if

leaks are from winch.

Step 3. Check for excessive noise from winch.

Notify the supervisor.

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