TM 5-4220-227-14
5-39. Dual Hose Assembly.
This task covers: Replace
b. Repair
INITIAL SETUP
Tools
Materials/Parts (Cont)
General Mechanic's Tool Kit
Distilled Water (Item 9, Appendix E)
(NSN 5180-00-177-7033)
Bands, Rubber (Item 4, Appendix E)
Bags, Plastic (Item 3, Appendix E)
Materials/Parts
Detergent, Nonionic (Item 8, Appendix E)
Dual Hose Assembly
Equipment Condition
Hose Clamps (2)
Gasket
Inhalator mask assembly removed (para. 4-50).
Cloth, Lint-Free (Item 6, Appendix E)
a. Replace. (figure 5-59)
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
If the chamber is pressurized, the oxygen inhalator dual hose assembly may be passed in through M/L.
(1)
Loosen fitting nut (1) from mask demand regulator connection (2) and remove supply hose (3) and gasket (4).
Discard gasket.
(2)
Remove hose clamp (5) from exhaust regulator connection (6) and remove exhaust hose (7). Discard hose
clamp.
(3)
Install exhaust hose (7) on exhaust regulator connection (6) and secure with new hose clamp (5).
(4)
Install supply hose (3) and new gasket (4) on mask demand regulator connection (2) and tighten fitting (1).
5-128
