TM 5-3805-261-34
Section V. COOLING SYSTEM TROUBLESHOOTING.
3-31.
GENERAL INFORMATION. This section lists the common cooling system malfunctions which may occur during
the operation of the 130G Grader. You should perform the tests, inspections and corrective actions in the order listed.
Follow the troubleshooting procedures listed below step-by-step until you can go no further.
3-32.
COOLING SYSTEM TROUBLESHOOTING PROCEDURES. This section cannot list all possible malfunctions,
nor can it list all possible tests, inspections or corrective actions. If a malfunction is not listed, contact your supervisor.
COOLING SYSTEM TROUBLESHOOTING AND MAINTENANCE PROCEDURES.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
ENGINE OVERHEATS.
WARNING
STEAM UNDER PRESSURE
Remove radiator cap slowly to relieve pressure before completely removing it when the engine is hot. Failure
to follow this procedure may cause INJURY. If you are scalded by steam, seek medical aid immediately.
At operating temperature, the engine coolant is hot and under pressure.
Steam can cause personal injury.
Check the coolant level ONLY when the engine is stopped and the radiator fill cap is cool enough to touch with
your hand.
Cooling system conditioner contains alkali. Avoid contact with skin and eyes to prevent personal injury.
Step 1.
Check coolant level.
Refer to TM 5-3805-261-20. Refill to proper level.
Step 2.
Check the radiator fins.
If the radiator fins are bent, damaged or defective, use a radiator fin comb to straighten.
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