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 738 of 1318

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

0072-74

DRAFT

0072

Change 1

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HWT2703

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WARNING

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ICON 3

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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.

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Step 88.

Disconnect pump house wire harness pressure governor ECU J1 connector.

With a

test lead set, check for continuity across pump house wire harness wire 3272 (blue)

from pump house wire harness hydraulic reservoir temperature sensor connector,

terminal 1 to pump house wire harness pressure governor ECU J1 connector,

terminal 22.

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If there is no continuity, repair wire 3272 in pump house wire harness if

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

harness (WP 0302).

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Step 89.

With a test lead set, check for continuity across pump house wire harness wire 2200

(black) from pump house wire harness hydraulic reservoir temperature sensor

connector, terminal 2 to a known good ground.

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a.

If there is continuity, replace pressure governor control

ECU (WP 0288).

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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).

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MALFUNCTION

TEST OR INSPECTION

CORRECTIVE ACTION