TM-9-2320-279-20-3

M977 SERIES, 8x8 HEAVY EXPANDED MOBILITY TACTICAL TRUCKS (HEMTT)

TECHNICAL MANUAL; MAINTENANCE INSTRUCTIONS; ORGANIZATIONAL MAINTENANCE, VOLUME 3 OF 3

TM-9-2320-279-20-3 - Page 347 of 615

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

●

●

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

●

●

●

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