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TM 5-4210-233-14&P-1
3-6. RADIATOR/COOLING SYSTEM
This task covers:
Service
MATERIAL/PARTS REQUIRED
Antifreeze, Permanent, Item 29, Appendix E
EQUIPMENT CONDITION
Main Engine Shutdown (para 2-12 .)
APU Shutdown (para 2-16 .)
Batteries Disconnected (para 4-114 .)
Engine Enclosure Covers Open
Service.
CAUTION
Never put coolant in a hot engine. The engine block or cylinder
head can be cracked due to difference in temperature between
engine block or cylinder head and coolant.
Add coolant to radiator only when engine is stopped or idling.
NOTE
Clean cooling system every 2000 hours of operation or once
every year. in areas where water has a high mineral content,
clean cooling system more frequently.
(a)
Operate vehicle until engine is warm. Park vehicle on level surface, apply parking brake, and
shut down engine.
WARNING
To remove radiator cap when engine is hot,
turn radiator cap slowly with a glove or rag to
first stop position to relieve pressure before
removing cap. This will prevent painful bums.
(b)
Using a glove or rag to prevent burns, slowly
turn radiator cap (1)
counterclockwise to first
stop position to relieve system pressure, and
after system pressure
is safely relieved
remove radiator cap (1).
NOTE
Cooling system has a capacity of 13.8 gallons (52I)
(c)
Open radiator drain cock (2) and drain coolant
into
suitable
container.
3-25
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