TM 5-4220-227-14
5-45. Ball Valves 1 1/4 Inch (Air Exhaust Manifold).
This task covers:
a. Replace
b. Repair
INITIAL SETUP
Tools
Materials/Parts (Cont)
General Mechanic's Tool Kit
Cloth, Lint Free (Item 6, Appendix E)
(NSN 5180-00-177-7033)
Bands, Plastic (Item 4, Appendix E)
Bags, Plastic (Item 3, Appendix E)
Tape, Teflon (Item 21, Appendix E)
Materials/Parts
Ball Valve 1 1/4 Inch
Equipment Condition
Valve Kit
Detergent, Nonionic (Item 8, Appendix E)
Air exhaust manifold removed (para. 5-44).
Distilled Water (Item 9, Appendix E)
Replace. (figure 5-69)
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.
(1)
Hold connector (1) and remove pipe (2).
(2)
Remove valve (3) from manifold (4).
(3)
Hold connector (5) and remove pipe (6).
(4)
Remove valve (7) from manifold (4).
WARNING
Leave 1 1/2 threads exposed on fitting when applying teflon tape. This will ensure that no teflon tape will
hang down inside the air system. Teflon tape should be wrapped in such a manner that when the fitting is
tightened the tape will not loosen. Failure to wrap teflon tape correctly may result in contamination or
blockage of the air system and subsequent possible injury or death to the diver.
(5)
Apply teflon tape to all pipe threads.
5-156
