TEST OR INSPECTION
While an assistant pushes and holds pump operator's panel DRIVER MAIN INLET
PRIMER switch (WP 0004), check for 22 to 28 VDC between pump house wire 2788
(blue) at driver main inlet primer valve control solenoid and a good ground.
If 22 to 28 VDC are not present, go to Step 19.
Turn battery disconnect switch to OFF position (WP 0007). Check for continuity across
pump house wire 1640 (black) from driver main inlet primer valve control solenoid
terminal to a known good ground.
If continuity is present, replace driver main inlet primer valve control
If continuity is not present, repair wire 1640 in pump house wire
harness if repairable (TM 9-2320-325-14&P), or replace pump house
wire harness (WP 0458).