TM-5-4210-249-13-P-2

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 2 OF 4

TM-5-4210-249-13-P-2 - Page 727 of 1452

TM 5-4210-249-13&P-2

0178-9

DRAFT

0178

TFFT03985

Step 10.

Remove cab instrument panel E (WP 0311).

Disconnect rear step buzzer audio alarm

connector.

Check for continuity across cab power distribution wire harness wire 1647

(brown) from rear step buzzer audio alarm connector, terminal B to rear step buzzer

indicator, terminal.

If there is no continuity, repair wire 1647 in cab power distribution wire

harness if repairable (TM 9-2320-325-14&P), or replace cab power

distribution wire harness and block (WP 0441).

Step 11.

Check for continuity across main wire harness wire 1614 (brown) from rear step buzzer

audio alarm connector, terminal A to rear step buzzer indicator terminal.

a.

If there is continuity, replace rear step buzzer indicator (WP 0313).

b.

If there is no continuity, repair wire 1614 in main wire harness if

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

harness (WP 0455).

MALFUNCTION

TEST OR INSPECTION

CORRECTIVE ACTION