Troubleshooting the slide out ankle July 17, 2020 19:27 Updated Is the extender ("1") loose in the frame even though the knob ("A") is tightened? or Is the elevation T ("2") loose even though the knob ("B") is tightened? Related articles Why a thoracic drop can't be added with a release How to remove spring breakaway INS-77 Replacing the tilt head short cable assembly Thoracic & lumbar straight drop adjustment locations Variable speed control adjustments