NHTSA recall campaign
81V088000
ManufacturerMACK TRUCKS, INCORPORATEDReported1981-07-08Affected10,000 vehicles
What was wrong
Defect
THE RETAINING PIN FOR THE BRAKE CONTROL KNOB HAS BEEN MISALIGNED (OFF THE CENTER LINE OF THE VALVE PLUNGER HOLE). THIS CAUSES THE KNOB TO BE OVERSTRESSED AT THE RETAINING PIN HOLE AREA CAUSING IT TO SEPARATE FROM THE VALVE.
Manufacturer remedy
THE HOLES WILL BE RETOOLED TO PROVIDE CORRECT ALIGNMENT AND PLASTIC KNOBS WILL BE REPLACED BY KNOBS OF STRONGER MATERIAL HAVING METAL REINFORCEMENTS.
To check whether your specific VIN is covered and to find a participating dealer, look this campaign up on NHTSA.gov →