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 348 of 985

e

.

.

TM 9-2320-279-20-1

Troubleshooting Malfunctions (Cent)

Table

2-9.

Troubleshooting (Cent)

Malfunction

Test or Inspection

Corrective Action

ARCTIC HEATER KIT

4.

HEATER FAILS TO SUFFICIENTLY WARM ENGINE (COOLANT PUMP OPERATING).

COOLANT HOSE

TA50C4J4

Step 1. Check for restrictions in coolant hoses. Remove coolant hoses (para 20-2).

Remove any restrictions, install coolant hoses (para 20-2).

If there are no restrictions, replace arctic heater.

Step 2. If problem has not been solved, notifj the supervisor.

Change 2

2-255