FIGURE 4-7. AFTERCOOLER TUBE DISCONNECT
4-10. REMOVAL AND REPLACEMENT OF PRESSURE GAGE.
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. To test suspect pressure gage, remove by turning pressure gage counter clockwise as shown in figure 4-8.
b. Perform a comparison test with known good gage.
c. Replace pressure gage by turning clockwise into 1/4" receiver opening, next to pressure switch until tight.