c. To replace check valve, apply thread tape or thread compound to street elbow. With check valve arrow pointing
toward street elbow, turn check valve clockwise until tight (figure 4-8). Turn check valve until cap is on top.
Arrow on check valve body must be pointing towards street elbow in order for unit
to work properly. Failure to do this will cause compressor unit to malfunction.
d. Apply thread tape or thread compound to compression body threads before installing check valve and tighten
FIGURE 4-9. CHECK VALVE REMOVAL AND REPLACEMENT
4-12. GLOBE VALVE REPLACEMENT.
Disconnect compressor unit from main power supply before servicing, replacing
or repairing parts of equipment, to avoid personal injury.
Release pressure from air receiver and compressor pump before inspection,
performing procedures, or disassembly of equipment to avoid personal injury.
a. Disconnect inflator gage hose from globe valve by turning bushing counter clockwise (figure 4-10).