United States 91V033000
Volvo Trucks North America
The problem
IMPROPER PARK BRAKE CONTROL VALVES MAY HAVE BEEN INSTALLED; THE SUSPECT VEHICLE HAVE DISK BRAKES WITH PARK BRAKE VALVE DESIGNED FOR DRUM BRAKES.
Risk
TRUCKS LEFT WITH PARK BRAKES ENGAGED COULD BEGIN TO ROLLAFTER THE DISK BRAKES COOLED, AND COULD RESULT IN A VEHICLE CRASH WITHOUTWARNING.
What owners should do
REPLACE CONTROL VALVE WITH THE CORRECT DISK BRAKE VALVE.
Units 31