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 212 of 1318

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

0029-2

DRAFT

0029

Change 1

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CAUTION

Do not open any foam agent supply tanks while performing flush procedures or

damage to equipment may occur.

2.

Ensure foam manual METERING VALVE (1) is in OFF position.

3.

Using pressure governor, adjust water pump discharge pressure to 125 psi (862 kPa) (WP 0017).

4.

Put FOAM FLUSH switch (2) to ON position.

Indicator light (3) will illuminate.

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Be sure to wear proper eye protection to prevent injury or death.

Open and close all

valves slowly during any procedure.

Sudden changes in pressure may cause

equipment to react faster than personnel can be alerted.

Make sure surrounding

personnel are aware of changes being made to settings on equipment.

Failure to

comply may result in injury or death to personnel and damage to equipment.

CAUTION

Do not allow foam system pressure to exceed 250 psi (1,724 kPa).

Failure to comply

may result in damage to equipment.

5.

Put foam manual METERING VALVE (1) in fully OPEN position.

NOTE

Perform Steps (6) through (8) for discharges that were used.

6.

Open discharge valves and flush out all discharges that were used, removing foam until water runs clear.

7.

While flushing, open and close foam manual METERING VALVE (1) at least twice or until water runs clear

from discharge.

HWT0292

WARNING

ICON 66 AND 26