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 600 of 1452

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

0170-4

DRAFT

0170

TFFT04204

WARNING

ICON 3

Remove rings, wristwatches, neck chains, and any other jewelry before working

around vehicle.

Jewelry can catch on equipment and cause serious injury.

Jewelry

and tools may short across electrical circuits and cause damage to equipment, or

severe burns or electrical shock to personnel.

Step 6.

Install two-way radio inline fuse (WP 0430).

Disconnect two-way radio connector from

two-way radio (WP 0430).

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

Turn vehicle ENGINE switch to ON position (TM 9-2320-347-10).

Check for 10 to 14

VDC between two-way radio power wire (red) connector and a known good ground.

If 10 to 14 VDC are not present, go to Step 8.

Step 7.

Turn battery disconnect switch to OFF position (WP 0007). Check for continuity across

two-way radio ground wire (black) from radio connector to a known good ground.

a.

If there is continuity, replace two-way radio (WP 0430).

b.

If there is no continuity, repair two-way radio ground wire if

repairable (TM 9-2320-325-14&P), or replace two-way

radio (WP 0430).