Troubleshooting Malfunctions (Cont)
2-7. TROUBLESHOOTING INSTRUCTIONS (CONT).
Table 2-3. Troubleshooting (Cont)
Test or Inspection
ARCTIC HEATER KIT
Do not wear jewelry when working around the vehicle. Jewelry can catch on
equipment and cause injury, or may short across an electrical circuit and cause
severe burns or electrical shock.
COOLANT PUMP FAILS TO OPERATE (INDICATOR LIGHT COMES ON).
Check for defective coolant pump.
Figure 2-9. Arctic Coolant Pump Test
Remove coolant pump assembly (TM 9-2320-279-20) and mount pump assembly on bench.
Set up coolant pump test (fig. 2-9). Apply 24 vdc power to input terminal and ground
negative (-) to terminal on pump body. Let motor run 15 minutes.
If coolant does not flow at a rate of 16.0 GPM (60.5 liters/min) or pump operation is
not smooth and there is more than one cc/hr leakage from seal, repair or replace
coolant pump (para 21-2).
All data on pages 2-129 through 2-136, deleted
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