Service | Concept2

Model D Troubleshooting

Seat Wobbles from Side to Side


The seat wobbles from side to side on the monorail.


After extended use, the fit of the seat on the monorail may become loose due to wear on the rollers. To adjust the fit, you can move the bottom rollers to a tighter hole toward the front of the seat as follows:

  1. Gain access to the bottom rollers by removing the seat from the monorail using one of the following methods:
    • Disconnect the monorail from the flywheel (as you would for storage). Then, use two 9/16” or 14 mm wrenches to remove the top seat roller and slide the seat up to and off the front of the monorail.
    • Use a 7/16” wrench and an Allen wrench to remove the top of the rear leg from the monorail, and then slide the seat off the rear of the monorail.
  2. Use a 9/16" wrench and an Allen wrench to loosen and tighten the bottom rollers.