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 458 of 1188

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

0077-6

DRAFT

0077

TFFT04409A

Step 9.

Turn water pump engine off (WP 0022).

Turn battery disconnect switch to OFF

position (WP 0007).

Open pump house panel A (WP 0539). Open pump operator’s

panel housing (WP 0325).

Disconnect pump operator’s panel wire harness water pump

engine ECU wire harness connector from water pump engine ECU.

Open pump

operator’s panel housing (WP 0325).

Disconnect pump operator’s panel wire harness

dual governor pressure switch wire harness 4-terminal connector.

With a test lead set,

check for continuity across wire 4062 in pump operator’s panel wire harness from water

pump engine ECU wire harness connector, terminal 24 to dual governor pressure

switch wire harness 4-terminal connector, terminal 3.

If continuity is not present, repair wire 4062 in pump operator’s panel wire

harness if repairable (TM 9-2320-325-14&P), or replace pump operator’s

panel wire harness (WP 0459).

MALFUNCTION

TEST OR INSPECTION

CORRECTIVE ACTION