ARMY TM 9-2805-262-14
AIR FORCE TO 38G2-90-1
NAVY NAVFAC P-8-613-14E
4-31. Relief Valve.
This task covers:
a. Removal
b. Inspection
c. Installation
INITIAL SETUP
Tools
Materials/Parts
General Mechanic’s Tool Kit (Item 1, Appendix B)
Rags, Wiping (Item 7, Appendix D)
Solvent, Drycleaning (Item 8, Appendix D)
a. Removal. (figure 4-25).
(1) Unscrew relief valve (1) from rocker cover (2).
(2) Repeat step 1 for remaining relief valves.
b. Inspection. (figure 4-25)
WARNING
Drycleaning solvent PD-680 used to clean parts is potentially dangerous to personnel and
property. Avoid repeated and prolonged skin contact. Do not use near open flame or
excessive heat. Flash point of solvent is 100°F-138°F (38°C-60°C).
(1) Clean relief valves in drycleaning solvent and dry thoroughly.
(2) Inspect threads for signs of stripping and replace if threads are damaged.
(3) Ensure pin (3) moves freely in and out. Replace if pin does not function properly.
c.
Installation. (figure 4-25)
(1) Install relief valve (1) in rocker cover (2).
(2) Repeat step 1 for remaining relief valves.
4-54
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