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 1069 of 1318

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

0097-3

DRAFT

0097

HWT0443A

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 4.

Pull battery disconnect switch to off position (WP 0007).

Open pump operator’s

panel (WP 0207).

Remove pump house panel K (WP 0339).

Disconnect pump house

wire harness thermal relief valve sensor connector.

With a test lead set, check for

continuity across wire 4085 (red) from pump operator’s panel wire harness PUMP HOT

PUSH TO TEST button, terminal to pump house wire harness thermal relief valve

sensor connector, terminal B.

If there is no continuity, go to Step 8.

Step 5.

With a test lead set, check for continuity across wire 1405 (blue) from pump house wire

harness thermal relief valve sensor connector, terminal A to pump operator’s panel

harness PUMP HOT PUSH TO TEST button terminal.

If there is continuity, replace thermal relief valve sensor (WP 0275).

MALFUNCTION

TEST OR INSPECTION

CORRECTIVE ACTION