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 753 of 1188

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

0104-45

DRAFT

0104

TFFT02884

Step 67.

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 position sensor power wire (yellow) from bumper turret junction box

connector, terminal 4 to bumper turret junction box 9-pin terminal strip, terminal 3.

If there is no continuity, repair bumper turret junction box position sensor

power 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).

TFFT02885

Step 68.

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 position sensor power wire (yellow) from bumper turret wire

harness bumper turret control connector, terminal 14 to bumper turret wire harness

bumper turret junction box connector, terminal 4.

a.

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

b.

If there is no continuity, repair bumper turret wire harness position

sensor power 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