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.
Put pump operator's panel FOAM FLUSH switch to OFF position (WP 0004).
Disconnect main wire harness pump operator's panel wire harness connector DO1.
With a test lead set, check for 22 to 28 VDC between main wire harness wire 2834 (red)
at main wire harness pump operator's panel wire harness connector DO1, terminal G
and a known good ground.
If 22 to 28 VDC are present, repair wire 2834 in pump operator's panel wire
harness if repairable (TM 9-2320-325-14&P), or replace pump operator's
panel wire harness (WP 0459).