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 409 of 1318

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

0057-29

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 40.

Put pump operator’s panel FOAM SYSTEM switch to OFF position (WP 0004) and

release.

While an assistant puts cab FOAM SYSTEM switch to on position (WP 0004),

check if foam system shutoff valve operates to open position.

.

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

Step 46.

.

MALFUNCTION

TEST OR INSPECTION

CORRECTIVE ACTION