MACK RD SERIES 1981: STEERING:GEAR BOX:SHAFT PITMAN

General Information

NHTSA Campaign ID Number: 81V155000

Make Model Year
MACK RD SERIES 1981
Date Owners Notified Date Received by ODI Date Added to Database
1982-06-23 1981-12-29 1982-01-19

Production Dates: 1981-08-01 - 1981-09-01

Manufacturers Involved: Mack Trucks, Inc.

Component: STEERING:GEAR BOX:SHAFT PITMAN

Potential Number Of Units Affected: 225

Report Initiator: MFR MFR Report

Summary

THE PITMAN ARM RETAINING BOLT MAY NOT HAVE BEEN TIGHTENED TO THE REQUIRED SPECIFICATIONS DUE TO A DESIGN CHANGE. INADEQUATE RETENTION OF THE BOLT TO THE OUTPUT SHAFT COULD ALLOW THE PITMAN ARM TO LOOSEN.

Remedy

THE DEALER WILL INSPECT AND, IF NECESSARY, RETORQUE THE RETAINING BOLT TO PROPER SPECIFICATIONS AT NO CHARGE.

Notes

VEHICLE DESCRIPTION: TRUCKS.SYSTEM: STEERING; PITMAN ARM RETAINING BOLTS.CONSEQUENCES OF DEFECT: SHOULD THIS LOOSE CONDITION GO UNCORRECTED, THE SPLINEDGROOVES ON THE OUTPUT SHAFT COULD WEAR SMOOTH, CAUSING LOSS OF STEERINGCONTROL, WITHOUT PRIOR WARNING, AND A VEHICLE ACCIDENT.