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 789 of 1318

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

0073-3

DRAFT

0073

HWT0972

Step 5.

Disconnect cab pump control wire harness cab power distribution wire harness

connector.

With a test lead set, check for 22 to 28 VDC between cab power distribution

wire harness wire 2773 (red) at cab power distribution wire harness connector, terminal

E and a known good ground.

a.

If 22 to 28 VDC are present, repair wire 2773 in cab pump control wire

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

control wire harness (WP 0281).

b.

If 22 to 28 VDC are not present, repair wire 2773 in cab power

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

replace cab power distribution wire harness (WP 0280).

Step 6.

Put cab PUMP PRIME switch to on position (WP 0004).

Check if primer pump

operates.

If primer pump does not operate when cab PUMP PRIME switch is put to on

position, go to Step 11.

Step 7.

Put cab PUMP PRIME switch to on position (WP 0004).

Check if primer pump draws

water to water pump.

If primer pump operates but does not draw water to water pump, go to

Step 26.

MALFUNCTION

TEST OR INSPECTION

CORRECTIVE ACTION