NHTSA Campaign Id 80V053000; Date: May. 6, 1980
Recalled Vehicles:1968 Mack F Series; 1969 Mack F Series; 1970 Mack F Series; 1971 Mack F Series; 1972 Mack F Series; 1973 Mack F Series; 1974 Mack F Series; 1975 Mack F Series; 1976 Mack F Series; 1968 Mack FAP; 1969 Mack FAP; 1970 Mack FAP; 1971 Mack FAP; 1972 Mack FAP; 1973 Mack FAP; 1974 Mack FAP; 1975 Mack FAP; 1976 Mack FAP; 1968 Mack FC; 1969 Mack FC; 1970 Mack FC; 1971 Mack FC; 1972 Mack FC; 1973 Mack FC; 1974 Mack FC; 1975 Mack FC; 1976 Mack FC; 1968 Mack FCA; 1969 Mack FCA; 1970 Mack FCA; 1971 Mack FCA; 1972 Mack FCA; 1973 Mack FCA; 1974 Mack FCA; 1975 Mack FCA; 1976 Mack FCA; 1968 Mack FCS; 1969 Mack FCS; 1970 Mack FCS; 1971 Mack FCS; 1972 Mack FCS; 1973 Mack FCS; 1974 Mack FCS; 1975 Mack FCS; 1976 Mack FCS; 1968 Mack R Series; 1969 Mack R Series; 1970 Mack R Series; 1971 Mack R Series; 1972 Mack R Series; 1973 Mack R Series; 1974 Mack R Series; 1975 Mack R Series; 1976 Mack R Series
Component: Steering:linkages:knuckle:spindle:arm
Manufactured by: Mack Trucks, Incorporated
Affected Units:: 219
Recall Summary:The steering arm may develop cracks due to insufficient fatigue life in the machine radius of the taper at the steering knuckle end.
How to Fix:Install steering arms that have been magna-flux inspected for cracks and shot peened for improved fatigue life. This will be done without charge.
Recall Notes:Vehicle description: trucks. System: steering assembly; steering arm. Consequences of defect: continued operation could lead to failure of thesteering arm, loss of steering control without prior warning, and potential forvehicle accident.
Date Owners notified by Manufacturer: Dec 15, 1980
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