TM-5-4210-249-13-P-1

TACTICAL FIRE FIGHTING TRUCK (TFF) MODEL M1142

TECHNICAL MANUAL; OPERATOR’S AND FIELD LEVEL MAINTENANCE MANUAL WITH REPAIR PARTS AND SPECIAL TOOLS LIST (INCLUDING DEPOT REPAIR PARTS AND SPECIAL TOOLS); PART 1 OF 4

TM-5-4210-249-13-P-1 - Page 748 of 1188

TM 5-4210-249-13&P-1

0104-40

DRAFT

0104

TFFT02876

Step 59.

Put bumper turret control POWER switch to

{

(off) position (WP 0004).

Turn battery

disconnect switch to OFF position (WP 0007).

Disconnect bumper turret wire harness

bumper turret junction box connector.

Check for continuity across bumper turret

junction box lower wire (black) from bumper turret junction box connector, terminal 10 to

bumper turret junction box 9-pin terminal strip, terminal 9.

If there is no continuity, repair bumper turret junction box lower wire in

bumper turret junction box wire harness if repairable

(TM 9-2320-325-14&P), or replace bumper turret junction box wire

harness (WP 0573).

TFFT02877

Step 60.

Remove cab instrument panel E (WP 0311).

Disconnect bumper turret wire harness

bumper turret control connector.

With a test lead set, check for continuity across

bumper turret wire harness lower wire (black) from bumper turret wire harness bumper

turret control connector, terminal 11 to bumper turret wire harness bumper turret

junction box connector, terminal 10.

a.

If there is continuity, replace bumper turret control (WP 0570).

b.

If there is no continuity, repair bumper turret wire harness lower wire in

bumper turret wire harness if repairable (TM 9-2320-325-14&P), or

replace bumper turret wire harness (WP 0437).

MALFUNCTION

TEST OR INSPECTION

CORRECTIVE ACTION