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 968 of 1318

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

0086-6

DRAFT

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HWT0615

Step 9.

Remove cab instrument panel C (WP 0205).

Disconnect cab instrument panel wire

harness switch connector from non-operating switch connector.

Check for 22 to 28

VDC between cab instrument panel wire harness wire 1018 (violet) at non-operating

cab instrument panel wire harness switch connector, terminal 7 and a known good

ground.

If 22 to 28 VDC are not present, repair wire 1018 in cab instrument panel

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

panel wire harness (WP 0279).

Step 10.

Turn Service Drive Lights Off (TM 9-2320-422-10).

Pull battery disconnect switch to off

position (WP 0007).

Check for continuity across cab instrument panel wire harness

wire 1027 (black) from non-operating cab instrument panel wire harness switch

connector, terminal 8 to a known good ground.

a.

If there is continuity, replace non-operating rocker switch (WP 0199).

b.

If there is no continuity, repair wire 1027 in cab instrument panel wire

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

panel wire harness (WP 0279).

Step 11.

Check if backlights on cab instrument panel switches illuminate.

If backlights on cab instrument panel switches do not illuminate, go to

Step 14.

MALFUNCTION

TEST OR INSPECTION

CORRECTIVE ACTION