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 1159 of 1318

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

0105-11

DRAFT

0105

Change 1

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HWT1154

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Step 13.

Check for 22 to 28 VDC between cab roof lightbar cable assembly wire 1626 (red) at

cab roof lightbar flasher unit, terminal 8 and a known good ground.

.

If 22 to 28 VDC are not present, repair wire 1626 in cab roof lightbar cable

assembly if repairable (TM 9-2320-325-14&P), or replace cab roof lightbar

cable assembly (WP 0291).

.

Step 14.

Put EMERG MASTER and ROOF EMERGENCY LIGHTS switches to off position

(WP 0004).

Turn Service Drive Lights Off (TM 9-2320-422-10).

Pull battery disconnect

switch to off position (WP 0007).

Check for continuity across ground wire (white) from

cab roof lightbar flasher unit, terminal 11 to a known good ground.

.

If there is continuity, replace cab roof lightbar flasher unit (WP 0287).

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MALFUNCTION

TEST OR INSPECTION

CORRECTIVE ACTION