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 TM 9-2320-270-20-3
HEATER CORE - CONTINUED
ACTION
REMARKS
ITEM
LOCATION
REMOVAL
WARNING
Be careful when removing radiator cap. If engine is hot, escaping steam could burn
you. Using a rag, 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 off of radiator.
Slowly unscrew to first stop, pause,
a.
Radiator cap (2)
Radiator (1)
1.
and allow pressure escape.
When all pressure has escaped,
b.
unscrew and take off.
a. Place drain pan underneath.
Draincock (3)
2.
b. Open and let coolant drain.
c. When coolant stops draining, close.
d. Get rid of coolant (page 4-1).
Using 1/4-inch flat-tip screwdriver, un-
Clamp (6)
Heater hose (4) to
3.
screw and pull back.
nipple (5)
Pull off.
Heater hose (4)
Nipple (5)
4.
Using 1/4-inch flat-tip screwdriver, un-
Clamp (9)
Return hose (7) to
5.
screw and pull back.
nipple (8)
Pull off.
Return hose (7)
Nipple (8)
6.
Pull off.
Two grommets (10)
Two nipples (5)
7.
and (8)
4-1266
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