Check handle position

  1. Check whether the handle is vertical with the window closed.
  2. If the comfort mushroom cam collides with the frame or runs stiffly into the striker, then press the sleeve of the comfort mushroom cam in manually.
    − Airgap adjustment comfort mushroom cam
  3. If the sash shuts of its own accord, then adjust the brake effect on the carriage of the friction stay.
    − Adjust brake effect