TM 5-4220-231-14&P
4-21 Flask Valve (DASS).
This task covers: Replace
INITIAL SETUP
Tools
Equipment
Condition
General
Mechanics
Tool Kit
Open flask valves to release
all air from flasks.
O-ring Installation and Removal Tool
Wrench, adjustable,
size 15
Materials/Parts
Reference
Valve, Flask 13229E4605
Para. 4-19, General
O-ring, M83248/2-910
(1)
Silicone Compound
(Item 9, Appendix D)
Nonionic Detergent
Solution (NID) GP
(Item 17, Appendix D)
a.
Remove
(1)
Determine
which flask valve is to be
replaced.
There is an identical flask
valve on each
end of the flask.
These
procedures
are applicable
to
either valve.
FLASK
VALVE
(2)
Loosen
and remove
end of flexible
hose assembly
(2) from flask valve
(1) by positioning
a wrench
on
upper
CGA nut (3) and turning
counterclockwise.
Remove
cut and
discard O-ring.
(3)
Remove flask valve (1) from flask
3.4
by positioning
a wrench
on valve
2
1It
and turning valve counterclockwise.
Remove, cut, and discard O-ring (5)
49@@"
4@1
which is between
the flask and the
valve.
Change 1
4-63
