TM 9-2320-279-20-3
b.
M978 Tanker Maintenance Instructions (Cont)
(7)
Hold V17 GRAVITY VALVE (9)
in place and remove two
nuts (10), screws (11), and
coupling halves (12).
(8)
Remove V17 GRAVITY
VALVE (9) and coupling
gasket (13) from pipe (14).
Installation.
(1)
Install coupling gasket (1) on pipe (2).
(2)
Position V17 GRAVITY VALVE (3) on
pipe (2).
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.
(3)
Hold V17 GRAVITY VALVE (3) in place
and pipe (2).
and position coupling gasket (1) over connection of valve
25-139