TM 5-4220-227-14
5-35. Dump Valves.
This task covers:
Replace
b.
Repair
INITIAL SETUP:
Tools
Materials/Parts (Cont)
General Mechanic's Tool Kit
Bands, Rubber, (Item 4, Appendix E)
(NSN 5180-00-177-7033)
Bags, Plastic (Item 3, Appendix E)
Tape, Teflon (Item 21, Appendix E)
Materials/Parts
Distilled Water (Item 8, Appendix E)
Ball Valve
Equipment Condition
Valve Kit
Detergent, Nonionic (Item 9, Appendix E)
Chamber shut down (para. 2-15).
Cloth, Lint Free (Item 6, Appendix E)
a. Replace. (figure 5-54)
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.
The reference designators of the dump valves being removed are OEX-038 exhaust O2
valve, O/L and OEX-037 exhaust O2 valve I/L.
There are two dump valves and silencers. Replacement of each one is the same.
(1) If necessary for removal of valve, remove nut (1), stem spring (2), plate (3), stop plate (4), handle (5), spring (6)
from valve (7).
(2) Hold elbow fitting (8) and remove valve (7) from elbow fitting (8)
(3) Remove silencers (9) from valve (7).
5-118
