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 640 of 1318

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

0071-2

DRAFT

0071

HWT0528

Step 1.

Push battery disconnect switch to on position (WP 0007).

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 PUMP COOLER switch to ON position (WP 0004), check if pump

cooler valve operates to open position.

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

Step 2.

Check if pump cooler valve remains in open position, when assistant releases pump

operator’s panel PUMP COOLER switch (WP 0004).

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

Step 3.

While an assistant puts pump operator’s panel PUMP COOLER switch to OFF position

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

If pump cooler valve does not operate to closed position, go to Step 12.

Step 4.

While an assistant puts cab PUMP COOLER switch to on position (WP 0004), check if

pump cooler valve operates to open position.

If pump cooler valve does not operate to open position, go to Step 8.

Step 5.

While an assistant puts cab PUMP COOLER switch to off position (WP 0004), check if

pump cooler valve operates to closed position.

If pump cooler valve operates to closed position, pump cooler valve control

is operating correctly.

MALFUNCTION

TEST OR INSPECTION

CORRECTIVE ACTION