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 241 of 1390

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

0127-21

DRAFT

0127

HWT2596

Step 27.

Pull battery disconnect switch to off position (WP 0007). With a test lead set, check for

continuity across pump house heater diagnostic module connector, terminals A and B

when DIESEL HEATER TEST switch is in on position (WP 0004).

If there is no continuity, go to Step 29.

HWT2223A

Step 28.

Remove pump house panel G (WP 0339). Disconnect pump house wire harness pump

house heater three terminal connector. With a test lead set, check for continuity across

wire 1640 (black) from pump house wire harness pump house heater three terminal

connector, terminal C to a known good ground.

a.

If there is continuity, replace pump house heater (WP 0310).

b.

If there is no continuity, repair wire 1640 in pump house wire harness if

repairable (TM 9-2320-325-14&P), or replace pump house wire

harness (WP 0302).

MALFUNCTION

TEST OR INSPECTION

CORRECTIVE ACTION