TM 9-2320-328-13&P-1
0077-5
DRAFT
0077
HWT0634
WARNING
ICON 3
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.
Step 7.
Connect air lines at under truck nozzles valve.
Disconnect pump house wire harness
under truck nozzles control valve connector.
Put UNDER TRUCK NOZZLES switch to
on position (WP 0004).
With a test lead set, check for 22 to 28 VDC between pump
house wire harness wire 2772 (gray) at pump house wire harness under truck nozzles
control valve connector, terminal 1 and a known good ground.
If 22 to 28 VDC are not present, go to Step 10.
Step 8.
Put UNDER TRUCK NOZZLES switch to off position (WP 0004).
Pull battery
disconnect switch to off position (WP 0007).
With a test lead set, check for continuity
across wire 2200 (black) from pump house wire harness under truck nozzles control
valve connector, terminal 2 to a known good ground.
a.
If there is continuity, replace under truck nozzles control
valve (WP 0271).
b.
If there is no continuity, repair wire 2200 in pump house wire harness if
repairable
(TM 9-2320-325-14&P), or replace pump house wire
harness (WP 0302).
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION