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 757 of 1452

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

0182-7

DRAFT

0182

TFFT04585

Step 9.

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

Disconnect main wire

harness wire 4089 (green) from pump house heater fuel pump terminal.

Install

jumperwire into pump house wire harness pump house diagnostic module connector,

terminal A wire 2852 and terminal B wire 4086.

Turn battery disconnect switch to ON

position (WP 0007).

Check for 22 to 28 VDC at wire 4089 (green) between main wire

harness pump house heater fuel pump wire 4089 (green), terminal and a known good

ground.

If 22 to 28 VDC are not present, go to Step 13.

Step 10.

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

Disconnect main wire

harness wire 4090 (purple) connector from pump house heater fuel pump terminal.

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

With jumperwire still

installed, check for 22 to 28 VDC at pump house heater fuel pump wire 4090, terminal

and a known good ground.

If 22 to 28 VDC are not present, replace pump house heater fuel

pump (WP 0467).

MALFUNCTION

TEST OR INSPECTION

CORRECTIVE ACTION