TM 5-4220-227-14
5-30. Oxygen Pressure Gages.
This task covers:
Replace
INITIAL SETUP:
Tools
Materials/Parts (Cont)
General Mechanic's Tool Kit
Bags, Plastic (Item 3, Appendix E)
(NSN 5180-00-177-7033)
Tape, Teflon (Item 21, Appendix E)
Materials/Parts
Equipment Condition
Pressure Gage 0-4500
Chamber shut down (para. 2-15).
Pressure Gage 0-150
Bands, Rubber (Item 4, Appendix E)
Replace. (figure 5-49)
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.
NOTE
Ensure system is depressurized prior to beginning this task.
Gain access OGA-025 the low pressure O2 gage and OGA-026 the high pressure O2 gage by
reaching over the top of and down behind the instrument panel.
(1) Unlatch two latches (1) open enclosure (2) and install two supports (3) and pins (4).
(2) Loosen fitting nut (5) and remove line (6) from fitting (7).
(3) Remove fitting (7) from low pressure gage (8).
(4) Loosen fitting nut (9) and remove line (10) from fitting (11) on elbow (12).
(5) Loosen and remove elbow (12) from high pressure gage (13).
5-98
