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 482 of 1318

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

0063-6

DRAFT

0063

HWT0677A

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 5.

Connect air lines at bumper turret valve.

Disconnect pump house wire harness bumper

turret control valve connector.

While an assistant pushes and holds bumper turret

control discharge switch (WP 0004), with a test lead set, check for 22 to 28 VDC

between pump house wire harness wire 2837 (gray) at bumper turret control valve

connector, terminal 1 and a known good ground.

If 22 to 28 VDC are not present, repair wire 2837 in pump house wire

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

harness (WP 0302).

Step 6.

Release bumper turret control discharge switch (WP 0004).

Put bumper turret control

POWER switch to

(off) position (WP 0004).

Pull battery disconnect switch to off

position (WP 0007).

With a test lead set, check for continuity across pump house wire

harness wire 2200 (black) from bumper turret control valve connector, terminal 2 to a

known good ground.

a.

If there is continuity, replace bumper turret 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