United States 90V161000
IVECO TRUCK OF N.A., INC.
The problem
TWO SCREWS THAT HOLD DETENT RAIL TO VALVE BODY CAN LOOSEN AND BACK OUT. ALSO, VALVE BODY CAN BREAK AT POINT WHERE DETENT RAIL ATTACHING SCREWS ARE THREADED INTO BODY.
Risk
DETENT RAIL WOULD BECOME FREE RESULTING IN PARKING BRAKECONTROL HANDLE JAMMING AND NOT RELEASING OR ENGAGING THE PARKING BRAKE.
What owners should do
REPLACE SUSPECT VALVE WITH IMPROVED VALVE.
Units 3056