TEST OR INSPECTION
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.
Release pump operator's panel TANK TO PUMP switch (WP 0004). Remove cab
instrument panel B (WP 0311). Disconnect cab pump control wire harness TANK TO
PUMP switch connector. Check for 22 to 28 VDC between cab pump control wire
harness wire 2854 (red) at TANK TO PUMP switch connector, terminal 5 and a known
If 22 to 28 VDC are not present, repair wire 2854 in cab pump control wire
harness if repairable (TM 9-2320-325-14&P), or replace cab pump control
wire harness (WP 0443).