United States 87V145000
Volvo Trucks North America
The problem
FOOT CONTROLLED BRAKE VALVE MAY MALFUNCTION BY ALLOWING AIR PRESSURE TO BYPASS CONTROL PISTON O RING.
Risk
THESE CONDITIONS COULD CAUSE OVERLY AGGRESSIVE TRUCKBRAKING DURING NORMAL BRAKE APPLICATIONS CREATING THE POTENTIAL FOR A VEHICLECRASH.
What owners should do
REPAIR SO AS TO PREVENT BRAKE VALVE MALFUNCTION.
Units 33183