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 818 of 1188

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

0107-16

DRAFT

0107

TFFT03796

Step 18.

Install circuit breaker P11 (WP 0412).

Open pump operator’s panel housing (WP 0325).

Disconnect pump house wire harness DRIVER SIDE PRE-CONNECT A 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 4078 (orange) at DRIVER

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

a.

If there is continuity, replace DRIVER SIDE PRE-CONNECT A 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