Re: Passenger chair becoming hard to swivel
Reply #6 –
Five years ago just after I bought my 1996 U320, the passenger chair was very difficult to turn, while the driver chair was somewhat difficult to turn. I fixed them both by unbolting the chair from the swivel mechanism, then unbolting the swivel mechanism from the floor. Now, removing the large centre bolt allowed the top/bottom swivel plates to be separated which also allowed the ball bearings to be removed (or fall out). I cleaned and greased the driver side, then reassembled. The passenger swivel mechanism was not fixed by just cleaning and greasing because the top and bottom swivel plates were rubbing together. The ball bearings seemed to be too small, however, the top and bottom plates were distorted and rubbing each other. I used a ball pean hammer to reshape the top/bottom plates, then greased and reassembled. Both chairs still rotate very smoothly after five years of use.
Topic: Passenger chair becoming hard to swivel