TM-9-2320-328-13-P-2

HEMTT-BASED WATER TENDER (HEWATT)

TECHNICAL MANUAL; OPERATOR’S AND FIELD LEVEL MAINTENANCE MANUAL (INCLUDING REPAIR PARTS AND SPECIAL TOOLS LIST); PART 2 OF 3

MARCH 2009

TM-9-2320-328-13-P-2 - Page 320 of 1390

TM 9-2320-328-13&P-2

0132-4

DRAFT

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7.

Install cover (4) on bumper turret mount (5) with six screws (3), 12 washers (2), and six locknuts (1).

END OF TASK

BUMPER TURRET NOZZLE SPEED ADJUSTMENT

NOTE

•

Reducing speed too much may cause erratic or incorrect shift pattern operation.

•

Nozzle speed control is adjusted by using a small screwdriver and turning two needle

valves clockwise or counterclockwise in increments of 1/8 of a turn.

•

Both needle valves must be turned in same direction and distance.

Failure to comply may

result in nozzle pattern sleeve drifting when pattern control rocker switch is released on

joystick.

•

To increase nozzle speed, turn both needle valves counterclockwise in increments of 1/8

of a turn.

•

To decrease nozzle speed, turn both needle valves clockwise in increments of 1/8 of a

turn.

•

Needle valve closest to nozzle discharge controls fog speed.

•

Needle valve closest to air cylinders controls straight stream speed.

•

Maintain air pressure in normal operating range (85 to 120 psi [586 to 827 kPa]) to ensure

accurate adjustment.

HWT2526