MACK FWS 1979: STEERING:GEAR BOX:SHAFT PITMAN

General Information

NHTSA Campaign ID Number: 83V121000

Make Model Year
MACK FWS 1979
Date Owners Notified Date Received by ODI Date Added to Database
1984-04-13 1983-11-18 1983-12-07

Production Dates: 1978-01-01 - 1979-03-01

Manufacturers Involved: Mack Trucks, Inc.

Component: STEERING:GEAR BOX:SHAFT PITMAN

Potential Number Of Units Affected: 1377

Report Initiator: MFR MFR Report

Summary

MOUNTING OF THE PITMAN ARM MAY LOOSEN AND LEAD TO EXCESSIVE WEAR IN EITHER THE PITMAN ARM SPLINES OR THE STEERING GEAR SHAFT SPLINES, OR BOTH. THIS CONDITION IS DUE TO INCORRECT TIGHTENING OF THE MOUNTING SCREWS DURING ASSEMBLY.

Remedy

THE DEALER WILL INSPECT AND PROPERLY TIGHTEN THE PITMAN ARM RETAINING SCREWS.

Notes

VEHICLE DESCRIPTION: HEAVY TRUCKS.SYSTEM: STEERING; PITMAN ARM.CONSEQUENCES OF DEFECT: LOOSENESS IN THE STEERING LINKAGE MAY RESULT IN LOSS OFSTEERING CONTROL AND THE POSSIBILITY OF A VEHICLE ACCIDENT.