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 807 of 1318

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

0073-21

DRAFT

0073

HWT3097

Step 27.

Stop ENGINE (TM 9-2320-422-10).

Pull battery disconnect switch to off

position (WP 0007).

Remove pump house panel K (WP 0339). Push battery

disconnect switch to on position (WP 0007).

While an assistant puts cab PUMP PRIME

switch to on position (WP 0004), check if primer valve control solenoid is operating.

Operation can be checked by listening for a metallic clicking sound and slight

movement of solenoid.

If primer valve control solenoid does not click and slightly move, go to

Step 34.

WARNING

ICON 3

Remove rings, wristwatches, neck chains, and any other jewelry before working

around vehicle.

Jewelry can catch on equipment and cause serious injury.

Jewelry

and tools may short across electrical circuits and cause damage to equipment, or

severe burns or electrical shock to personnel.

Step 28.

Check for 22 to 28 VDC between wire 4064 (red) at primer valve control solenoid

terminal and a known good ground.

If 22 to 28 VDC are not present, go to Step 32.

Step 29.

While an assistant puts cab PUMP PRIME switch to on position (WP 0004), check for

22 to 28 VDC between pump house wire harness wire 4065 (red) at primer valve and a

known good ground.

If 22 to 28 VDC are not present, go to Step 31.

MALFUNCTION

TEST OR INSPECTION

CORRECTIVE ACTION