TM 10-4320-317-13
4-14. MAINTENANCE OF PRESSURE-RELIEF VALVE.
This task covers:
a. Disassemble
c.
Assemble
b. Inspect
INITIAL SETUP
Tools
Equipment Conditions
General Mechanic's Automotive
TWDS system shutdown.
Tool Kit, Item 1, Appendix B
Materials/Parts
Anti-seizing Tape
(Item 10, Appendix E)
a.
DISASSEMBLE (Figure 4-1).
Unscrew relief valve (1) from grooved coupling (2).
Figure 4-1. Pressure-Relief Valve
b.
INSPECT.
(1)
Check wire seal (3) on relief valve. If broken, replace relief valve (1).
(2)
Inspect threaded parts for damaged threads and pitting. If damaged threads or pitted, replace the
damaged part.
(3)
Inspect all sealing surface parts for uneven wear or pitting. If worn or pitted, replace sealing surface
parts.
4-13
