TM 5-3805-293-23-2
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COOLING SYSTEM INSPECTION CONTINUED
00036
WARN I N G
Personal injury can result from hot coolant, steam and alkali. Allow engine and coolant to
cool before slowly removing filler cap to relieve cooling system pressure. Engine must be
stopped and radiator cap must be cool enough to touch with your bare hand. Failure to
follow this warning may result in injury or death to personnel.
9. Inspect engine cooling system for intrusion of combustion gasses by slowly removing cooling system cap
(Figure 5, Item 1), starting engine, and observing cooling system for bubbles as engine warms.
a. If bubbles are present in coolant, then combustion gases may be entering the engine cooling system
replace the engine (WP 0069).
b. If no air bubbles are present, replace water temperature regulator (WP 0081).
Figure 5. Cooling System Pressure Cap.
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10. Start engine and operate machine. Verify coolant temperature is OK.
a. Coolant temperature OK. End of Task.
b. Coolant temperature remains high, proceed to step 11.
11. Inspect water pump for signs of Class III leakage, referring to Water Pump Inspection in this work package.
END OF TASK