NHTSA Campaign Id 74V100000; Date: Jun. 24, 1974
1974 Mack Mack
Component: Steering:hydraulic Power Assist System
Manufactured by: Mack Trucks, Incorporated
Affected Units:: 567
Mack campaign no n/a. Truck tractor. Possibility that the pins that attach acap to the piston assembly in the drag link torque valve, in the air-o-maticpower steering systems, may not be adequate to retain the cap to the piston forthe duration of its expected life. (correct by inspecting and replacing torquevalves with new ones).
Date Owners notified by Manufacturer: Jan 2, 1974
Also see: