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 432 of 1318

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

0059-4

DRAFT

0059

HWT0503

Step 4.

Put cab UNDER TRUCK NOZZLES switch to off position (WP 0004).

Put cab FOAM

SYSTEM switch to on position (WP 0004).

While an assistant puts UNDER TRUCK

NOZZLES switch to on position, check if under truck nozzles foam metering valve

operates to open position.

If under truck nozzles foam metering valve operates to open position,

remove and clean, or replace under truck nozzles foam metering valve

orifice/restrictor (WP 0174).

HWT1258

Step 5.

Put UNDER TRUCK NOZZLES switch to off position (WP 0004).

Check air line from air

control valve manifold to under truck nozzles foam metering valve for kinks and

damage.

If air line is kinked or damaged, replace damaged air line (WP 0374).

MALFUNCTION

TEST OR INSPECTION

CORRECTIVE ACTION