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 442 of 1318

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

0061-2

DRAFT

0061

HWT0508

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.

Valves are open when

tabs or yellow paint tabs are aligned with direction of fluid flow.

Step 2.

Put PUMP COOLER switch to OFF position (WP 0004).

If system air pressure is below

85 psi (586 kPa), start engine and allow system air pressure to build to at least 85 psi

(586 kPa) (TM 9-2320-422-10).

Then shut off engine (TM 9-2320-422-10).

Remove

pump house panel K (WP 0339).

While an assistant puts pump operator’s panel FOAM

FLUSH switch to ON position (WP 0004), check if foam flush valve operates to open

position.

If foam flush valve does not operate to open position, go to Step 12.

MALFUNCTION

TEST OR INSPECTION

CORRECTIVE ACTION