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 465 of 1188

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

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DRAFT

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TFFT04429

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.

NOTE

Sensor failure or problems due to moisture and corrosion may occur.

Inspect pressure

transducer and connector for damaged terminals, loose water seal wedge-lock

connections, moisture, corrosion, and other foreign objects, using a bright light.

Step 4.

Turn water pump engine off (WP 0022).

Turn battery disconnect switch to OFF

position (WP 0007).

Open pump operator’s panel housing (WP 0325).

Disconnect

pump operator’s panel wire harness pump operator’s panel pressure governor

12-terminal wire harness connector.

Disconnect pump operator’s panel pressure

governor pressure transducer wire harness connector.

With a test lead set, check for

continuity across red wire from pressure transducer connector, terminal 1 to pressure

governor 12-terminal connector, terminal 6.

If continuity is not present, replace pressure transducer wire

harness (WP 0460).