TM 5-4220-227-14
5-42. Ball Valves ¾ Inch (Air Supply Manifold).
This task covers: Replace
b. Repair
INITIAL SETUP
Tools
Materials/Parts (Cont)
General Mechanic's Tool Kit
Bands, Rubber (Item 4, Appendix E)
(NSN 5180-00-177-7033)
Bags, Plastic (Item 3, Appendix E)
Tape, Teflon (Item 21, Appendix E)
Materials/Parts
Cloth, Lint Free (Item 6, Appendix E)
Detergent, Nonionic (Item 8, Appendix E)
Ball Valve 3/4 inch
Distilled Water (Item 9, Appendix E)
Valve Kit
a. Replace. (figure 5-64)
WARNING
To prevent the spread of disease, serious injury and/or death, oxygen breathing systems must be
maintained hygienically clean and free from dust, dirt, and all hydrocarbon contamination. Refer
to oxygen system prework procedures para. 4-10 to avoid violating
this warning.
CAUTION
Use two wrenches to remove and install all piping components to avoid damage.
NOTE
This procedure is typical for all 3/4 inch valves on the air supply manifold. Remove only the suspected
faulty valve. It is not necessary to remove the entire air supply manifold to replace a valve.
(1)
Hold connector (1) of valve (2) and remove pipe (3).
(2)
Remove valve (2).
(3)
Hold connector (4) of valve (5) and remove pipe (3).
(4)
Remove valve (5).
(5)
Hold connector (7) of valve (8) and remove pipe (9).
(6)
Remove valve (8).
(7)
Hold connector (10) of valve (11) and remove pipe (12).
(8)
Remove valve (11).
5-144
