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 335 of 1452

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

0153-3

DRAFT

0153

TFFT02590

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 3.

Put EMERG MASTER, ROOF EMERGENCY LIGHTS, F/R LOWER WARNING, SIDE

WARNING, and UPPER REAR WARNING switches to off position (WP 0004).

Remove

cab instrument panel A (WP 0311).

Swap relays 18 and 19 (WP 0402).

Put EMERG

MASTER and OVERHEAD WARNING switches to on position (WP 0004).

Check if

overhead warning beacon operates.

a.

If overhead warning beacon operates, return relays to original positions

and replace relay 19 (WP 0402).

b.

If overhead warning beacon does not operate, replace cab power

distribution wire harness and block (WP 0441).

MALFUNCTION

TEST OR INSPECTION

CORRECTIVE ACTION