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 207 of 1452

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

0138-3

DRAFT

0138

TFFT03690

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 4.

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

Open pump operator’s

panel housing (WP 0325).

Open pump house panel A (WP 0539).

Disconnect pump

house wire harness thermal relief valve sensor connector. With a test lead set, check

for continuity across wire 4085 (red) from pump operator’s panel wire harness PUMP

HOT PUSH TO TEST button terminal, to pump house wire harness thermal relief valve

sensor connector, terminal B.

If there is no continuity, go to Step 7.

Step 5.

With a test lead set, check for continuity across wire 1405 (blue) from pump house wire

harness thermal relief valve sensor connector, terminal A to pump operator’s panel

harness PUMP HOT PUSH TO TEST button terminal.

If there is continuity, replace thermal relief valve sensor (WP 0259).

MALFUNCTION

TEST OR INSPECTION

CORRECTIVE ACTION