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 226 of 1390

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

0127-6

DRAFT

0127

HWT2601

Step 10.

Put DIESEL HEATER TEST switch to off position (WP 0004).

Disconnect main wire

harness pump house heater fuel pump wire 4089 (green) from pump house heater fuel

pump connector.

Put DIESEL HEATER TEST switch to on position (WP 0004). Check

for 22 to 28 VDC between main wire harness pump house heater fuel pump wire 4089

(green), terminal and a known good ground.

If 22 to 28 VDC are not present, go to Step 14.

Step 11.

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

Disconnect main wire harness

pump house heater fuel pump wire 4090 (purple) from pump house heater fuel pump

connector. Check for continuity across wire 4090 (purple) from main wire harness pump

house heater fuel pump, terminal and a known good ground.

If there is continuity, replace pump house heater fuel pump (WP 0308).

MALFUNCTION

TEST OR INSPECTION

CORRECTIVE ACTION