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 1109 of 1188

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

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TFFT03890

Step 12.

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

Open pump operator’s

panel housing (WP 0325).

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

Disconnect pump operator’s panel wire harness WATER LEVEL gauge connector.

With

a test lead set, check for 22 to 28 VDC between wire 2342 (red) at pump operator’s

panel wire harness WATER LEVEL gauge connector, terminal 1 and a known good

ground.

If 22 to 28 VDC are not present, repair wire 2342 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).

Step 13.

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

With a test lead set, check

for continuity across pump operator’s panel wire harness wire 3895 from WATER

LEVEL gauge connector, terminal 2 to a known good ground.

a.

If there is continuity, replace pump operator’s panel WATER LEVEL

gauge (WP 0339).

b.

If there is no continuity, repair wire 3895 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