TM 9-2320-279-20-3
M978 Tanker Maintenance Instructions (Cont)
CAUTION
One pipe from which coupling
gasket is being removed must
be removed to prevent
damage to coupling gasket. If
coupling gasket is damaged,
piping connection will leak.
NOTE
l
l
b.
Component from which
coupling gasket is being
removed can be a pipe,
valve, or adapter. Pipe is
shown.
Remove component easiest
to get to. Refer to paragraph
25-11.e for piping. For valve
or adapter refer to specific
removal/installation task.
(2) Push coupling gasket (4) onto pipe (5) and remove pipe (6).
(3) Remove coupling gasket (4) from pipe (5).
Typical Pipe Coupling and Coupling Gasket Installation.
CAUTION
Do not tear or otherwise damage coupling
gasket during installation. If coupling gaskets
are damaged, piping connections will leak.
NOTE
l
l
l
All standard and reducing couplings are
installed the same way. Reducing coupling
is shown.
Component on which coupling gasket is
being installed can be a pipe, valve, or
adapter. Pipe is shown.
Install component easiest to get to. Refer to
paragraph 25-11.e for piping. For valve or adapter,
refer to specific removal/installation task.
(1) Apply light coat of grease to inside of coupling gasket (1) and install on pipe (2).
25-51
