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 677 of 1318

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

0072-13

DRAFT

0072

Change 1

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HWT2630

..

NOTE

A short to ground is present in system.

Steps 18 and 19 will isolate fault to a single wire or

a component.

..

Step 18.

Turn ENGINE switch to OFF position (TM 9-2320-422-10).

Pull battery disconnect

switch to off position (WP 0007).

Open pump house access door assembly (WP 0009).

Disconnect pump house wire harness manual override manifold pump displacement

solenoid connector.

Disconnect pump house wire harness pressure governor ECU J1

connector (WP 0288).

With a test lead set, check for continuity between pump house

wire harness wire 3263 (green) from pump house wire harness manual override

manifold pump displacement solenoid connector, terminal 1 to a known good ground.

..

If there is continuity, repair wire 3263 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