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 TM 5-2420-222-20-1
COOLING SYSTEM - CONTINUED
ACTION
LOCATION
ITEM
REMARKS
DRAINING
1.
Hood (1)
Cover (2)
Open.
WARNING
Be careful when removing radiator cap. If engine is hot, escaping steam could burn you. Use a rag
to cover radiator cap to protect your hand. Unscrew cap just enough to allow any built-up steam to
escape. When all pressure has been relieved, unscrew cap the rest of the way, and take it off of
radiator.
2.
Radiator (3)
Radiator filler
a. Using rags over cap (4), unscrew.
opening cap (4)
b. Push down, unscrew and take off.
WARNING
Draining hot cooling system is not recommended. If coolant must be drained with engine hot, use
gloves to protect against hot coolant. Severe burns could result.
NOTE
If drained coolant Is not contaminated, save it for later use. If it is contaminated, get rid of it and
use new coolant.
3.
Radiator (3)
Draincock (5)
a. Put 5-gallon container underneath.
b. Push on rubber hose.
c. Put other end of rubber hose Into 5-gallon
container.
d. If necessary, using slip-joint pliers, turn
counterclockwise to loosen.
e. Turning counterclockwise, open all the way.
f. Drain coolant into 5-gallon container.
g. Turn clockwise until seated to close.
h. Take off rubber hose.
NOTE
If loader backhoe Is equipped with engine coolant heater, skip step 4.
2-352
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