4-36. PRESSURE RELIEF VALVE - REPLACE.
This Task Covers:
Tool Kit, General Mechanic's: Automotive (Appendix B, Section III, Item 1).
Teflon Tape (Appendix E, Section II, Item 7).
Unit shut down and cool.
Enclosure Removed (para. 4-13).
a. Removal. (Refer to Figure 4-27).
Compressed air may cause severe injury or death, if not used properly.
Completely vent air pressure by turning drain lever on reel cabinet.
Open condensate drain valve on reel cabinet to relieve tank pressure.
Verify that pressure has been relieved by reading the air pressure gauge. It should read zero.
Remove pressure relief valve (1) from reducer bushing (2).
Apply Teflon tape to threads of relief valve (1).
Install pressure relief valve (1) into reducer bushing (2).
Figure 4-27. Pressure Relief Valve