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 1098 of 1318

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

0101-2

DRAFT

0101

HWT0503

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).

Put

cab FOAM SYSTEM switch to on position (WP 0004). Open pump house access door

assembly (WP 0009).

While an assistant puts cab UNDER TRUCK NOZZLES switch

to on position (WP 0004), check if under truck nozzles foam metering valve operates to

open position.

If under truck nozzles foam metering valve does not operate to open

position, troubleshoot Under Truck Nozzles Do Not Operate When Selected

(WP 0077).

MALFUNCTION

TEST OR INSPECTION

CORRECTIVE ACTION