TM 5-3805-280-10
Operational Checkout
9 COOLANT CHECKS
1/1
RADIATOR CAP
YES: Go to next check.
CAUTION: Prevent possible injury. DO NOT
remove radiator cap unless engine is cool.
NO: Replace radiator
When engine is hot and cap is removed, hot
cap.
coolant or steam will spray out causing
serious burns.
Engine OFF and cool.
T6488FY UN19OCT88
Remove radiator cap.
If coolant is warmer than surrounding air temperature is,
a 'whoosh' sound heard when cap is loosened?
Does cap have a stop position that requires it to be
pushed down to remove?
Does cap have a good seal (C) and gasket (A)?
Is spring (B) in good condition?
T7690AB UN23JAN92
1/1
COOLANT LEVEL AND
Engine OFF and cool.
YES: Go to next check.
COOLANT CONDITION IN
RECOVERY TANK
Open radiator access door.
NO: Add or replace
CHECKS
coolant. (See 'Check
Coolant Level' in
Inspect coolant level and coolant condition in recovery
Maintenance-Every 10
tank.
Hours or Daily chapter.)
Is coolant level between FULL and LOW marks on
recovery tank?
T6488FX 1921MAR89
Is coolant clear, not oily, foamy, or rust colored?
1/1
21-29
