United States 96V081000
Shyft Group
The problem
THE DRAGLINKS HAVE BEEN EQUIPPED WITH AN ANTI-TILT SEAL ON THE PITMAN END THAT CAN AFFECT THE TAPER FIT OF THE BALL STUD TAPER INTO THE PITMAN ARM. THE RECOMMENDED TORQUE ON THE STUD NUT DOES NOT OVERCOME THE COMPRESSION OF THE ANTI-TILT SEAL.
Risk
THIS CONDITION CAN CAUSE A LOOSENING OF THE JOINT AND ULTIMATE SEPARATION RESULTING IN LOSS OF STEERING.
What owners should do
DEALERS WILL REPLACE WASHERS WITH 90 DEGREE FLANGES WITH WASHERS HAVING A 45 DEGREE FLANGE AND SANDWICH THE RUBBER BUSHING IN THE ANTI-TILT SEAL. THE FLANGES ALLOW THE BUSHING TO PROPERLY EXPAND. IF A BODY HAS BEEN COMPLETED ON THE CHASSIS, THE PITMAN ARM WILL ALSO BE REPLACED.
Units 604