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 harness
wire 4067 (orange) at driver main inlet primer valve and a known good ground.
If 22 to 28 VDC are not present, go to Step 13.
Turn battery disconnect switch to OFF position (WP 0007). Disconnect pump house
wire harness wire 4068 (black) from driver main inlet primer valve terminal (WP 0268).
Check for continuity across wire 4068 (black) from wire termination to a known good
If continuity is present, replace primer valve (WP 0268).
If continuity is not present, repair wire 4068 in pump house wire
harness if repairable (TM 9-2320-325-14&P), or replace pump house
wire harness (WP 0458).