TM 5-3805-280-24-1
Operational Checkout Procedure
YES: Go to next check.
RADIATOR INTERNAL
CAUTION: Prevent personal injury, DO NOT
CORE CHECK
remove radiator cap unless engine is cool.
NO: Remove and clean
When engine is hot and cap is removed, hot
or replace radiator. Fill
coolant or steam will spray out causing
cooling system with clean
serious burns.
coolant.
9005
10
Raise engine access door.
30
T6488FZ
UN19OCT88
Remove radiator cap.
Drain coolant into a clean container until core tubes are
visible.
Is radiator core free of rust, lime, or corrosion? Are
passages in core clean, not plugged?
1/1
COOLANT LEVEL AND
Engine OFF and cool.
YES: Go to next check.
CONDITION IN
RECOVERY TANK
Open radiator access door.
NO: Add or replace
CHECKS
coolant.
Inspect coolant level and coolant condition in recovery
tank.
Is coolant level between FULL and LOW marks on
recovery tank?
T6488FX
1921MAR89
Is coolant clear, not oily, foamy, or rust colored?
1/1
COOLANT LEVEL AND
YES: Go to next check.
CAUTION: Prevent possible injury. DO NOT
CONDITION IN
remove radiator cap unless engine is cool.
RADIATOR CHECKS
NO: Add coolant if low.
When engine is hot and cap is removed, hot
Check hose to coolant
coolant or steam will spray out causing
recovery tank. Flush
serious burns.
radiator and engine if
coolant is dirty or rusty.
Engine OFF and cool.
Add clean coolant. If
coolant is oily check for
T6488FY
UN19OCT88
Remove radiator cap.
hydraulic or engine oil
leaks into cooling system.
Inspect coolant level.
Go to Engine Repair
chapter.
Inspect coolant condition.
Is coolant level at bottom of fill neck on radiator?
Is coolant clear, not oily, foamy or rust colored?
1/1
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