TM 5-4220-233-14
4-36. RELIEF VALVES.
This task covers:
a.
Removal
b.
Cleaning
c.
Installation
INITIAL SETUP :
Tools
Materials/Parts Appendix D
Wrench, ¾ "
Anti-seizing Tape (Item 16)
Wrench, 7/8"
Plastic Bags (item 2)
Equipment Conditions
Depressurize Compressed Gas System
(paragraph 4-19)
NOTE
The relief valve set at 3,300 psi is installed on the low pressure manifold and the
relief valve set at 5,500 psi is installed on the high pressure manifold The
procedure to remove and replace both relief valves is the same.
a.
Removal.
WARNING
Prior to performing this task, maintenance personnel should review Section
VII for general guidelines on removing and installing components on life
support systems. Failure to follow proper procedures may result In system
contamination.
Figure 4-20. Replace Relief Valve(s).
4-54
