TM 5-4220-231-14&P
(3)
At
front
of
panel,
use
an
allen
4
wrench
to back
out
set
screw
(2),
and
remove
handle
(1) from stem
of
valve (4).
Remove
hex nut (3) from
valve
(4).
Remove
valve
from
back
of panel.
(4)
Remove
coupler
(6) from valve (4) by
turning
nut
counterclockwise.
Remove,
cut, and
discard
O-ring
(5).
4
5
b.
Replace
(1)
Use an allen wrench
to back out set
screw
(2),
and
remove
handle
(1)
3
2
from stem
of new valve
(4).
Remove
hex nut (3) from valve (4).
4
2
4
4-106
