j. After high operating point has been attained, replace pressure switch cover and secure it in place with pressure
switch cover nut.
FIGURE 4-5. PRESSURE SWITCH ADJUSTMENT
4-9. COMPRESSOR PUMP 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.
b. Remove flywheel and flywheel key by removing flywheel set screw. Then pull off flywheel and flywheel key from
c. Disconnect aftercooler tube from compression fitting as shown in figure 4-7.