Figure 3-41. Relief Valve, Air Gage, Drain Cock and Air Valve, Removal.
(1) Clean build up of all dirt, oil, and debris from all parts.
DO NOT breathe cleaning solvent vapors for long periods of time or use solvent
near open flames. To avoid illness, explosion, or fire, only use solvent in well
ventilated areas away from open flames.
(2) Clean all metal parts with a clean, soft cloth (item 3, Appendix E) or medium bristle brush (item 4, Appendix
(3) Clean air gage with mild soap (item 5, Appendix E) and water.
(4) Allow all parts to dry.