TM 5-4320-300-14
Table 4-2. Organizational Maintenance Troubleshooting - Continued
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
a. Remove radiator cap and cylinder block drain plug, and loosen oil cooler housing and radiator
draincocks. Drain coolant into a large metal container.
b. Install cylinder block drain plug and tighten radiator and oil cooler housing draincocks.
CAUTION
If the engine is hot, fill SLOWLY to prevent rapid
cooling and distortion of engine castings.
c. Refill cooling system with clean, soft water. Start engine and operate it for 15 minutes to
thoroughly circulate the water. Drain solution completely.
d. Refill with descaling solution and perform the descaling procedure.
e. Reverse-flush the cooling system as follows:
(1) Remove water pump as described in paragraph 4-37.
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