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 269 of 985

TM 9-2320-279 -20-1

Troubleshooting Malfunctions (Cent)

12-15. TROUBLESHOOTING INSTRUCTIONS (CONT).

I

Table 2-9. Troubleshooting (Cent)

Vlalfunction

Test or Inspection

Corrective Action

SELF-RECOVERY WINCH (CONT)

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

ULIC

LINES

FITTINGS

LINES

TA1SSS41

Step 3. Check all hydraulic lines and fittings at winch hydraulic motor for looseness or damage.

Tighten loose lines. Add oil as required (LO 9-2320-279-12). Replace if damaged.

Step 4. Check P’10driven hydraulic pump and hydraulic lines for leaks.

Tighten loose connections. Replace damaged lines.

Add oil as required (LO 9-2320-279-12).

Step 5. Check hydraulic lines and fittings at control valve for looseness or damage.

Tighten loose fittings. Replace damaged lines.

Add oil as required (LO 9-2320-279-12).

Step 6. Check linkage between self-recovery winch control valve and winch control lever for

damage.

K ~in~age is damaged, replace damaged ~nkage (para 19-3).

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