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 836 of 1188

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

0108-16

DRAFT

0108

TFFT03811

Step 18.

Install circuit breaker P14 (WP 0412).

Open pump operator’s panel housing

(WP 0325).

Disconnect pump house wire harness DRIVER SIDE PRE-CONNECT B

valve control connector.

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

Check for 22 to 28 VDC between pump operator’s panel wire harness wire 4081 (blue)

at DRIVER SIDE PRE-CONNECT B valve control connector, terminal A and a known

good ground.

If 22 to 28 VDC are not present, go to Step 20

Step 19.

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

With a test lead set, check

for continuity across wire 3895 (black) from pump operator’s panel DRIVER SIDE

PRE-CONNECT B valve control connector, terminal B and a known good ground.

a.

If there is continuity, replace DRIVER SIDE PRE-CONNECT B valve

control (WP 0417).

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