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 478 of 1318

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

0063-2

DRAFT

0063

HWT0395

NOTE

•

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

System air

pressure is required to activate valves and operate bumper turret.

•

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 fluid flow.

Step 1.

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 H (WP 0339).

Push battery

disconnect switch to on position (WP 0007).

Put bumper turret control POWER switch

to

|

(on) position (WP 0004).

While an assistant pushes and holds bumper turret control

discharge switch (WP 0004), check if bumper turret valve operates to open position.

If bumper turret valve operates to open position, go to Step 15.

MALFUNCTION

TEST OR INSPECTION

CORRECTIVE ACTION