TM 5-4220-227-14
5-31. Pressure Regulator.
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 Regulator
Chamber shut down (para. 2-15).
Bands, Rubber (Item 4, Appendix E)
Replace. (figure 5-50)
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 to OHL-024 the O2 hand loader (regulator) by reaching over the top of and down behind
the instrument panel.
(1) Unlatch two latches (1) open enclosure door (2) and install two supports (3) and pins (4).
(2) Loosen two fittings (5) and remove lines (6) and (7).
(3) Loosen two fitting nuts (8) and remove lines (9) and (10).
(4) Remove hole plug (11), retaining ring (12) and hand knob (13).
5-102
