RADIATOR/COOLING SYSTEM -706880125

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.

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