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 684 of 1452

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

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DRAFT

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TFFT04315

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 7.

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

pump house power distribution wire harness wire 1640 (black) from pump house power

distribution block relay P5, terminal 2 to a known good ground.

If there is no continuity, replace pump house power distribution wire

harness and block (WP 0457).

Step 8.

Check for continuity across wire 1687 (brown) from pump house power distribution

block relay P5, terminal 5 to pump house cooling fan temperature switch, terminal.

If there is continuity, go to Step 10.