NHTSA Recall 77V013000
Filed by Mack Trucks, Inc.. Component: Service Brakes, Air. Reported 1977-01-01. An estimated 830 vehicles are affected. Recall repairs are free at any authorized dealer.
Defect
CRACKS MAY BE PRESENT IN THE BRAKE SPIDER. THESE CRACKS COULD EVENTUALLY CAUSE THE BRAKE SPIDER TO FAIL. THIS COULD ALLOW SEPARATION OF THAT PORTION OF THE BRAKE SPIDER THAT RETAINS THE BRAKE CAMSHAFT, THE BRAKE CHAMBER, AND THE BRAKE CHAMBER BRACKET FROM THE FOUNDATION BRAKE ASSEMBLY. BRAKE PULL IN THE DIRECTION OPPOSITE THE AFFECTED WHEEL LOCATION OR WHEEL LOCK-UP ON THE AFFECTED WHEEL COULD OCCUR.
What the manufacturer will do
THE DEALER WILL INSPECT AND MODIFY THE AFFECTED BRAKE SPIDERS, FREE OF CHARGE.
Notes
VEHICLE DESCRIPTION: TRUCKS.SYSTEM: SERVICE BRAKES; FRONT AXLE CAM, BRAKE SPIDER.CONSEQUENCES OF DEFECT: BRAKE DEGRADATION AND WHEEL LOCK-UP COULD CAUSE LOSS OFVEHICLE CONTROL AND AN ACCIDENT.