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 282 of 985

TM 9-2320-279-20-1

Troubleshooting Malfunctions (Cent)

Tcsble 2-9. Troubleshooting (Cent)

Malfunction

Test or Inspection

Corrective Action

HEAVY-DUTY WINCH (CONT)

2.1. WINCH WILL NOT REWIND (M984E1 ) (CONT).

TA476071

Step

4.

Operate heavy-duty winch in the remote control position (TM 9-2320-279-10). Check for

24 VDC at pin D.

If 24 VDC is not present, go to ENGINE Troubleshooting, MALFUNCTION 9.1, then

return here.

FAIL SAFE

A

TA476077

Step 5. Check for defective remote controller. Set fail-safe switch to ON. Engage winch in. Check

resistance between pin A and pin D.

If resistance is more than 15 ohms, replace remote controller.