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 863 of 1318

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

0076-25

DRAFT

0076

HWT1746

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 36.

Connect air lines at tank-to-pump valve.

Disconnect pump house wire harness tank-to-

pump control valve connector.

Put cab or pump operator’s panel TANK TO PUMP

switch to open position (WP 0004) and release.

With a test lead set, check for 22 to 28

VDC between wire 2855 (red) at pump house wire harness tank-to-pump control valve

connector, terminal 1 and a known good ground.

If 22 to 28 VDC are not present, repair wire 2855 in pump house wire

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

harness.

Step 37.

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 tank-to-pump control

valve connector, terminal 2 to a known good ground.

a.

If there is continuity, replace tank-to-pump 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 0303).

MALFUNCTION

TEST OR INSPECTION

CORRECTIVE ACTION