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 386 of 1318

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

0057-6

DRAFT

0057

Change 1

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HWT3156

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Step 9.

Close foam tank drain valve (WP 0022). Remove foam tank pressure/vacuum vent

(WP 0184). Close and latch FOAM TANK FILL cover (WP 0022).

Open foam tank drain

valve (WP 0004).

Check if foam agent flows freely from foam tank drain valve.

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a.

If foam agent flows freely, clean or replace foam tank pressure/vacuum

vent (WP 0184).

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b.

If foam agent does not flow freely, replace hose between foam tank and

foam drain valve (WP 0320).

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MALFUNCTION

TEST OR INSPECTION

CORRECTIVE ACTION