TM 5-4220-227-14
6-23. Oxygen Shutoff Valve.
This task covers:
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, Rubber (Item 4, Appendix E)
Bags, Plastic (Item 3, Appendix E)
Materials/Parts
Leak Test Compound (Item 7, Appendix E)
Shutoff Valve
Equipment Condition
Valve Kit
Detergent, Nonionic (Item 8, Appendix E)
Shutoff valve removed (para. 5-33).
Distilled Water (Item 9, Appendix E)
Replace. (figure 6-41)
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.
NOTE
Shutoff valve is partially disassembled when removed.
Bonnet has left hand thread.
(1)
Remove bonnet (1), backup ring (2), and preformed packing (3) from body (4).
(2)
Hold bonnet (1) and turn valve stem (5) clockwise and remove seat (6) and preformed packing (7).
(3)
Remove gland nut (8).
(4)
Remove stem (5), and guide assembly (9) from bonnet (1).
(5)
Remove seal retainer (10) and stem seal (11) from bonnet (1).
(6)
Loosen nut (12) and remove guide assembly (9) and nut (12).
(7)
Clean all components with nonionic detergent and rinse thoroughly with distilled water.
6-94
