NHTSA Recall 80V052000
NHTSA Campaign Id 80V052000; Date: May. 6, 1980
Recalled Vehicles:
1979 Mack Mc Series; 1980 Mack Mc Series; 1979 Mack R Series; 1980 Mack R Series; 1979 Mack U Series; 1980 Mack U Series
Component: Parking Brake:driveline:air
Manufactured by: Mack Trucks, Incorporated
Affected Units:: 9,666
Recall Summary:
On certain vehicles, the knob that operates the tractor park valve may break off, rendering the valve inoperable.
How to Fix:
Defective knobs will be replaced with an improved type, without charge to owner.
Recall Notes:
Vehicle description: trucks. System: service brakes; tractor park valve control knob. Consequences of defect: the purpose of the tractor park valve is to allow thedriver to apply the tractor spring emergency/parking brake independently of thetrailer emergency parking brakes. If the knob is broken, the tractor parkingbrakes cannot be applied. If parked on an incline and left unattended, vehiclecould roll free and cause accident and injury.
Date Owners notified by Manufacturer: Oct 20, 1980
Also see: