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 410 of 1318

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

0057-30

DRAFT

0057

Change 1

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HWT0880A

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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 41.

Release FOAM SYSTEM switch (WP 0004).

Open pump operator’s panel (WP 0207).

Check for 22 to 28 VDC between pump operator’s panel wire harness wire 2816 (red) at

FOAM SYSTEM switch terminal and a known good ground.

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If 22 to 28 VDC are not present, go to Step 44.

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Step 42.

Pull battery disconnect switch to off position (WP 0007).

While an assistant holds pump

operator’s panel FOAM SYSTEM switch in on position, check for continuity across

pump operator’s panel FOAM SYSTEM switch from terminal wire 2816 (red) to terminal

wire 2830 (red).

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If there is no continuity, replace pump operator’s panel FOAM SYSTEM

switch (WP 0217).

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MALFUNCTION

TEST OR INSPECTION

CORRECTIVE ACTION