TM 5-4220-227-14
4-50. Oxygen Inhalator Mask Assembly.
This task covers: Replace
INITIAL SETUP:
Tools
Materials/Parts
General Mechanic's Tool Kit
Oxygen Inhalator Mask
(NSN 5180-00-177-7033)
Bands, Rubber (Item 4, Appendix E)
Bags, Plastic (Item 3, Appendix E)
Replace. (figure 4-37)
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. 4-9 to avoid violating
this warning.
NOTE
If chamber is pressurized, send in the oxygen mask through M/L.
(1) Disconnect inhalator oxygen supply hose (1) from BIBS manifold (2) at quick disconnect fitting (3).
(2) Disconnect inhalator oxygen exhaust hose (4) from BIBS manifold (2) at quick disconnect fitting (5).
(3) Remove inhalator mask assembly (6) with supply and exhaust hoses attached. Double bag inhalator mask
assembly (6).
CAUTION
If inhalator masks are not immediately replaced with new masks, install the plugs
provided to keep system closed and prevent chamber air pressure from escaping
through BIBS.
(4) Unbag new inhalator mask assembly (6).
(5) Connect inhalator oxygen exhaust hose (4) to BIBS manifold (2), and quick disconnect fitting (5)
(6) Connect inhalator oxygen supply hose (1) to BIBS manifold (2), and quick disconnect fitting (3).
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