TM-9-2320-328-13-P-2

HEMTT-BASED WATER TENDER (HEWATT)

TECHNICAL MANUAL; OPERATOR’S AND FIELD LEVEL MAINTENANCE MANUAL (INCLUDING REPAIR PARTS AND SPECIAL TOOLS LIST); PART 2 OF 3

MARCH 2009

TM-9-2320-328-13-P-2 - Page 186 of 1390

TM 9-2320-328-13&P-2

0123-4

DRAFT

0123

Change 1

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HWT0392

.

NOTE

Rear step buzzer indicator and audio alarm connectors are in contact with two separate

wire harnesses.

Wire 1647 (brown) originates at cab power distribution wire harness and

introduces power into the circuit.

Wire 1614 (brown) originates at main wire harness and

leads to rear step buzzer push button assembly.

When rear step buzzer push button

assembly is pushed, a ground is applied to circuit, completing circuit.

.

Step 4.

Install circuit breaker 1 (WP 0242).

Remove cab instrument panel D (WP 0205).

Push

battery disconnect switch to on position (WP 0007).

Disconnect rear step buzzer audio

alarm connector.

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

distribution wire harness wire 1647 (brown) at rear step buzzer audio alarm connector,

terminal B and a known good ground.

.

If 22 to 28 VDC are not present, repair wire 1647 in cab power distribution

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

distribution wire harness and block (WP 0280).

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MALFUNCTION

TEST OR INSPECTION

CORRECTIVE ACTION