TM 9-2320-279-20-3
M978 Tanker Maintenance Instructions (Cont)
25-18. V4 RELIEF VALVE REMOVAL/INSTALLATION/ADJUSTMENT (CONT).
b.
l
l
(1)
(2)
(3)
(4)
(5)
(6)
Install two coupling halves (4) over coupling gasket (1) with two screws (5) and nuts (6).
25-88
Installation.
CAUTION
Do not tear or otherwise damage
coupling gaskets during installation.
If coupling gaskets are damaged,
piping connections will leak.
Do not pinch or pull coupling
gaskets off-center while installing
coupling halves. If coupling gaskets
are damaged or moved out of
position, piping connections will
leak.
Install coupling gasket (1) on
pipe (2).
Position V4 relief valve (3) on
pipe (2) and install coupling
gasket (1) over end of valve.
Install coupling gasket (7) on pipe (8).
Position V4 relief valve (3) on pipe (8)
and install coupling gasket (7) over end
of valve.
Install two coupling halves (9) over
coupling gasket (7) with two screws (10)
and nuts (11).
