TM 5-4220-227-14
4-25. Pressurization Valve (Inner Lock Door)
This task covers:
Replace
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
Equipment Condition
Depressurization Valve
Chamber shut down (para. 2-15).
Replace. (figure 4-7)
(1)
Remove pressurization valve (1) from inner lock door (2).
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.
(2)
Apply teflon tape to threads of valve (1) and install on inner lock door (2).
4-24
