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 928 of 1318

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

0082-4

DRAFT

0082

Change 1

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HWT0741

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NOTE

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

System air

pressure is required to activate valves.

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Do not engage PUMP PTO during this procedure, except when performing complete

system checks.

Valve operations can be checked without water pump operation.

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Valve operations can be checked by observing valve shaft rotation.

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Step 4.

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).

While an assistant puts cab or pump operator’s panel TANK TO PUMP switch to OPEN

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

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If tank to pump valve does not operate, troubleshoot Tank-To-Pump Valve

Does Not Operate Properly (WP 0076).

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MALFUNCTION

TEST OR INSPECTION

CORRECTIVE ACTION