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 125 of 1452

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

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DRAFT

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TFFT03585

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 6.

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

Check for 22 to 28 VDC

between wire 2803 (grey) at cab power distribution block fuse FS 8, terminal and a

known good ground.

If 22 to 28 VDC are present, go to Step 9.

Step 7.

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

Disconnect main wire

harness pump house power distribution wire harness connector DP1.

With a test lead

set, check for continuity across wire 2803 (grey) from cab power distribution block fuse

F8, terminal to main wire harness pump house power distribution wire harness

connector DP1, terminal 12.

If there is continuity, replace pump house power distribution wire harness

and block (WP 0457).

MALFUNCTION

TEST OR INSPECTION

CORRECTIVE ACTION