United States 92V069000
PACCAR Incorporated
The problem
A CRACK IN THE DIE CAST ALUMINUM HOUSING OF THE BRAKE CHAMBER CAUSES A LOSS OF AIR PRESSURE IN THE CHAMBER. LOSS OF AIR PRESSURE CAUSES THE SPRING BRAKES TO BE APPLIED.
Risk
LOSS OF AIR PRESSURE IN THE HOUSING OF THE BRAKE CHAMBERAND THE SUBSEQUENT APPLICATION OF THE SPRING BRAKES DISABLES THE TRUCK WITHOUTPRIOR WARNING AND COULD CAUSE A VEHICLE ACCIDENT.
What owners should do
REPAIR OR REPLACE THE SUSPECT MGM BRAKE CHAMBERS.
Units 1500