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 1097 of 1188

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

0122-11

DRAFT

0122

TFFT03625

Step 11.

Put pump operator’s panel PUMP COOLER switch to OFF position (WP 0004).

Put cab

PUMP COOLER switch to on position (WP 0004) and release.

Check if cab PUMP

COOLER OPEN indicator illuminates.

If cab PUMP COOLER OPEN indicator does not illuminate, go to Step 14.

TFFT03626

Step 12.

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

Remove driver side crew

cab access panel (WP 0499).

Remove pump house panel Q (WP 0540).

Put cab

PUMP COOLER switch to off position (WP 0004).

Disconnect main wire harness pump

operator’s panel wire harness connector DO1.

Turn battery disconnect switch to ON

position (WP 0007).

With a test lead set, check for 22 to 28 VDC between main wire

harness wire 2834 (red) at main wire harness pump operator’s panel wire harness

connector DO1, terminal G and a known good ground.

If 22 to 28 VDC are present, repair wire 2834 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