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 647 of 1452

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

0173-17

DRAFT

0173

TFFT4669

Step 26.

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

Remove SINCGARS

receiver transmitter and power adapter from electronic mounting base

(TM 11-5820-890-10).

Disconnect SINCGARS radio interface wire harness connectors

from electronic mounting base and intercom (WP 0462).

With a lead test set, check for

continuity across SINCGARS radio interface wire harness PTT Lo wire (red) from

intercom connector, terminal 4 to SINCGARS radio connector, terminal A.

If there is no continuity, repair PTT Lo wire if repairable

(TM 9-2320-325-14&P), or replace SINCGARS radio interface wire harness

(WP 0462).

MALFUNCTION

TEST OR INSPECTION

CORRECTIVE ACTION