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 291 of 1452

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

0150-5

DRAFT

0150

TFFT03832

Step 6.

Install fuse FS 6 (WP 0401).

Disconnect cab power distribution wire harness siren

control connector MP2.

Turn battery disconnect switch to ON position (WP 0007).

Put

EMERG MASTER switch to on position (WP 0004).

With a test lead set, check for 22 to

28 VDC between wire 1637 (red) at cab power distribution wire harness siren control

connector MP2, terminal F and a known good ground.

If 22 to 28 VDC are not present, repair wire 1637 in cab power distribution

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

distribution wire harness and block (WP 0441).

Step 7.

Turn battery disconnect switch to OFF position (WP 0007).

Put EMERG MASTER

switch to off position (WP 0004).

With a test lead set, check for continuity across cab

power distribution wire harness wire 1640 (black) from cab power distribution wire

harness siren control connector MP2, terminal D to a known good ground.

If there is no continuity, repair wire 1640 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).

MALFUNCTION

TEST OR INSPECTION

CORRECTIVE ACTION