TM-9-2320-328-13-P-1

HEMTT-BASED WATER TENDER (HEWATT)

TECHNICAL MANUAL; OPERATOR’S AND FIELD LEVEL MAINTENANCE MANUAL (INCLUDING REPAIR PARTS AND SPECIAL TOOLS LIST); PART 1 OF 3

MARCH 2009

TM-9-2320-328-13-P-1 - Page 434 of 1318

TM 9-2320-328-13&P-1

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END OF TASK

HWT0505

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 line at under truck nozzle foam metering valve (WP 0174).

Disconnect

pump house wire harness under truck nozzles foam metering control valve connector.

Put cab 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 2872 (gray) at

under truck nozzles foam metering control valve connector, terminal 1 and a known

good ground.

If 22 to 28 VDC are not present, repair wire 2872 in pump house wire

harness if repairable (TM 9-2320-325-14&P), or replace pump house wire

harness (WP 0302).

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 foam

metering control valve connector, terminal 2 to a known good ground.

a.

If there is continuity, replace under truck nozzles foam metering 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