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 662 of 1318

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

0071-24

DRAFT

0071

HWT1198

WARNING

ICON 26,66

•

Be sure to wear proper eye protection to prevent injury or death.

If air lines are

under pressure when they are disconnected, they can whip around and cause

injury to personnel.

Caution should be exercised when disconnecting air line

fittings.

•

Be sure to wear proper eye protection to prevent injury or death.

Air lines may be

under pressure when control valve is operated.

If under pressure and air lines are

disconnected, air lines may whip around and cause injury to personnel.

Caution

should be exercised when operating control valve with air lines disconnected.

NOTE

Air pressure is checked by disconnecting air lines at pump cooler valve and observing air

pressure escaping from air line, when pump cooler control valve is activated.

Air will

escape from blue air line when PUMP COOLER switch is put to ON position, and escape

from red air line when PUMP COOLER switch is put to OFF position.

System air pressure

may drop below 85 psi (586 kPa) during this procedure.

Step 36.

Disconnect air lines at pump cooler valve.

While an assistant puts cab or pump

operator’s panel PUMP COOLER switch to ON and OFF positions (WP 0004), check if

air pressure is present at pump cooler valve.

If there is air pressure, replace pump cooler valve (WP 0319).

MALFUNCTION

TEST OR INSPECTION

CORRECTIVE ACTION