TM-5-4210-249-13-P-1

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 1 OF 4

TM-5-4210-249-13-P-1 - Page 442 of 1188

TM 5-4210-249-13&P-1

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DRAFT

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TFFT02931

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 2.

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

Remove cab instrument

panel B (WP 0311).

Disconnect cab pump control wire harness START PUMP STOP

switch connector.

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

Check for

22 to 28 VDC between wire 4070 (white) from cab pump control wire harness START

PUMP STOP switch connector, terminal 5 to a known good ground.

If 22 to 28 VDC are not present, go to Step 5.

MALFUNCTION

TEST OR INSPECTION

CORRECTIVE ACTION