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 840 of 1318

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

0076-2

DRAFT

0076

HWT1160

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 UNDER TRUCK NOZZLES 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 and holds pump

operator’s panel TANK TO PUMP switch to OPEN position (WP 0004), check if tank-to-

pump valve operates to open position.

If tank-to-pump valve does not operate to open position, go to Step 27.

Step 3.

Check if tank-to-pump valve remains in open position, after assistant releases pump

operator’s panel TANK TO PUMP switch (WP 0004).

If tank-to-pump valve does not remain in open position, go to Step 18.

Step 4.

While an assistant puts pump operator’s panel TANK TO PUMP switch to CLOSED

position (WP 0004), check if tank-to-pump valve operates to closed position.

If tank-to-pump valve does not operate to closed position, go to Step 11.

MALFUNCTION

TEST OR INSPECTION

CORRECTIVE ACTION