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 188 of 1318

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

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DRAFT

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Change 1

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6.

Properly label sealed containers when foam is completely drained from foam tank (5).

7.

Remove fill tower screen (6) from foam tank (5).

NOTE

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Defoaming agent can be used to assist in cleaning foam tanks.

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Defoaming agent and water must be added into foam tank that is being flushed.

8.

Add defoaming agent into foam tank (5).

9.

Fill foam tank (5) with warm water.

NOTE

Local drainage laws must be followed when draining and flushing foam and water from

foam tanks.

10. Turn FOAM TANK DRAIN valve handle (4) to open position and drain water from foam tank (5).

11. Repeat Steps (8) through (10) until water runs clear.

12. Turn FOAM TANK DRAIN valve handle (4) to closed position and install cap.

13. Remove drain hose (1) from FOAM SYSTEM DRAIN valve (2) and install cap.

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HWT0497

HWT2746