TM-9-2320-272-24-4
TRUCK, 5-TON, 6X6, M939, M939A1, AND M939A2 SERIES TRUCKS (DIESEL)
TECHNICAL MANUAL; UNIT, DIRECT SUPPORT, AND GENERAL SUPPORT MAINTENANCE MANUAL; VOLUME 4 OF 4
JUNE 1998
TM-9-2320-272-24-4 - Page 10 of 836
TM 9-2320-272-24-4
5-3. CYLINDER HEAD REPAIR (Contd)
4.
5.
Remove two screw-assembled lockwashers (2), plate (3), and two O-rings (4) from cylinder head (11)
and fuel crossover connection (5). Discard O-rings (4) and screw-assembled lockwashers (2).
Remove pipe plugs (10) from front and rear face of cylinder head (11). Hold pipe plugs (10) for
installation.
6.
Remove four freeze plugs (8) from exhaust ports (17) on cylinder head (11). Discard freeze
plugs (8).
7.
Remove two freeze plugs (6) from front and rear face of cylinder head (11). Discard freeze plugs (6).
8.
Remove two freeze plugs (1) from cylinder head (11). Discard freeze plugs (1).
9.
Remove freeze plug (9) from front of cylinder head (11). Discard freeze plug (9).
5-4
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