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 392 of 1318

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

0057-12

DRAFT

0057

Change 1

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HWT0350A

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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 18.

Put FOAM FLUSH switch to OFF position (WP 0004).

Disconnect diode pack from

pump house wire harness diode pack connector (WP 0269).

Put cab or pump

operator’s panel FOAM SYSTEM switch to ON position (WP 0004) and release.

With a

test lead set, check for 22 to 28 VDC between pump house wire harness wire 2830

(red) at diode pack connector, terminal A and a known good ground.

.

If 22 to 28 VDC are not present, repair wire 2830 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