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 396 of 1318

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

0057-16

DRAFT

0057

Change 1

.

HWT0353A

.

NOTE

•

Ensure system air pressure is at least 85 psi (586 kPa) during this procedure.

System air

pressure is required to activate valves.

•

Do not engage PUMP PTO during this procedure, except when performing complete

system checks.

Valve operations can be checked without water pump operation.

•

Valve operations can be checked by observing valve shaft rotation.

.

Step 24.

Release pump operator’s panel FOAM SYSTEM switch (WP 0004).

While an assistant

puts cab FOAM SYSTEM switch to off position (WP 0004), check if foam system shutoff

valve operates to closed position.

.

If foam system shutoff valve does not operate to closed position, go to

Step 28.

.

MALFUNCTION

TEST OR INSPECTION

CORRECTIVE ACTION