TEST OR INSPECTION
Open pump house panel A (WP 0539). While an assistant presses pump operator's
panel DRIVER MAIN INLET PRIMER switch (WP 0004), check if driver main inlet
primer valve control solenoid is operating. Operation can be checked by listening for a
metallic clicking sound and slight movement of solenoid.
If driver main inlet primer valve control solenoid does not click and slightly
move, go to Step 17.
Remove rings, wristwatches, neck chains, and any other jewelry before working
around vehicle. Jewelry can catch on equipment and cause serious injury. Jewelry
and tools may short across electrical circuits and cause damage to equipment, or
severe burns or electrical shock to personnel.
Check for 22 to 28 VDC between driver main inlet primer valve control solenoid terminal
wire 2768 (white) and a known good ground.
If 22 to 28 VDC are not present, go to Step 15.