MACK R SERIES 1972: STEERING:LINKAGES:KNUCKLE:SPINDLE:ARM
NHTSA Campaign ID Number: 80V053000
| Make | Model | Year |
|---|---|---|
| MACK | R SERIES | 1972 |
| Date Owners Notified | Date Received by ODI | Date Added to Database |
| 1980-12-15 | 1980-05-06 | 1980-07-31 |
Production Dates: 1968-10-01 - 1976-09-01
Manufacturers Involved: Mack Trucks, Inc.
Component: STEERING:LINKAGES:KNUCKLE:SPINDLE:ARM
Potential Number Of Units Affected: 219
Report Initiator: MFR MFR Report
THE STEERING ARM MAY DEVELOP CRACKS DUE TO INSUFFICIENT FATIGUE LIFE IN THE MACHINE RADIUS OF THE TAPER AT THE STEERING KNUCKLE END.
INSTALL STEERING ARMS THAT HAVE BEEN MAGNA-FLUX INSPECTED FOR CRACKS AND SHOT PEENED FOR IMPROVED FATIGUE LIFE. THIS WILL BE DONE WITHOUT CHARGE.
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.
