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 491 of 1318

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

0063-15

DRAFT

0063

HWT2066

Step 16.

Connect air line at bumper turret junction box. Set bumper turret control HORIZONTAL

SPEED to fast (fully clockwise) position (WP 0004). While an assistant operates

bumper turret control joystick to left and right positions (WP 0004), check if bumper

turret rotates to driver side and passenger side of vehicle.

If bumper turret does not rotate, go to Step 71.

Step 17.

Put bumper turret control OSCILLATION switch to

|

(on) position (WP 0004).

Set

bumper turret control OSCILLATION LIMITS control knobs to left and right limits for

system operations check (WP 0004).

Check if bumper turret oscillates to limits

selected.

If bumper turret does not oscillate to limits selected or stops at hard stop, go

to Step 62.

Step 18.

While an assistant adjusts bumper turret control HORIZONTAL SPEED control

(WP 0004), check if bumper turret oscillation speed varies when control is adjusted.

If bumper turret oscillation speed does not vary, replace bumper turret

control (WP 0375).

MALFUNCTION

TEST OR INSPECTION

CORRECTIVE ACTION