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TM 9-2320-364-34-1
Allow engine to cool before performing
troubleshooting maintenance. If necessary
use insulated pads and gloves. Hot engine
components will burn and cause injury to
personnel.
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.
CYLINDER HEAD INSPECTION
(1) Install cooling system pressure tester
on radiator.
(2) Pressurize cooling system to 10 psi
(69 kPa) and check cylinder heads for
leaks.
(a) If cylinder heads show signs of
coolant leaking, replace cylinder
head, sealing rings and
preformed packings (Para 3-7).
(b) If cylinder head, sealing rings and
preformed packings are not
leaking but pressure still goes
down, notify GS Maintenance.
(3) Release pressure and remove cooling
system pressure tester from radiator.
(4) Install radiator cap.
(5) Install six gaskets, engine air box
covers and 14 screws.
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