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TM 9-2320-364-20-2
2-1079
(1) Push down on radiator cap and slowly
turn to left to relieve pressure from
radiator.
(2) Start engine (TM 9-2320-364-10).
Allow engine to warm to operating
temperature of 190F (88C).
(3) Inspect coolant flow in radiator.
(a) If coolant does not flow,
perform Steps (4) and (5) below
and replace thermostat(s)
(Para 6-7).
(b) If coolant does flow, thermostat(s)
is OK.
(4) Turn OFF ENGINE switch.
(5) Install radiator cap on radiator.
THERMOSTAT TEST
Do not remove the radiator cap when the engine is hot; steam and hot coolant can escape and burn
personnel.
Use a clean, thick waste cloth or like material to remove the cap. Avoid using gloves. If hot water
soaks through gloves, personnel could be burned.
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