TM 5-3805-281-24-1
System Operational Checks
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. Go to General
Information section.
Raise engine access door.
T6488FZ
UN19OCT88
Remove radiator cap.
Drain coolant into a clean container until core tubes are
visible.
9010
10
Is radiator core free of rust, lime, or corrosion? Are
3
passages in core clean, not plugged?
1/1
RADIATOR OUTSIDE AIR
Open engine hood.
YES: Clean outside of
FLOW CHECK
radiator and straighten
Open left rear access door.
fins if bent. Replace
radiator if severely
damaged.
Inspect radiator screen for mud and debris.
NO: Go to next check.
Are radiator fins free of mud, leaves, grass, and other debris?
Is radiator damaged?
1/1
COOLANT HOSES AND
Are radiator and heater hoses free of twists, kinks, cracks, leaks or wear from rubbing
YES: Go to next check.
CLAMPS CHECK
on adjacent parts?
NO: Replace or untwist
Are hose clamps tight and installed correctly?
hoses as required.
Tighten or reinstall hose
clamps.
1/1
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