Recline Tension Liberty utilizes a sophisticated mechanism that automatically adjusts recline tension to match your body weight. To set recline tension, all you have to do is sit. For better health, minimize static postures by changing recline positions often. Backrest/Lumbar Support Liberty’s revolutionary Form-Sensing Mesh Technology provides perfect support while automatically adjusting itself to your unique shape. To properly fit the backrest/lumbar support to your body, all you have to do is sit back in the chair and let Liberty do the rest. Seat Height Lift up on lever under right side of seat cushion and position chair to a comfortable height with your thighs parallel to the floor and your feet fully supported by the floor or a footrest. Release lever. Seat Depth Lift up on lever under forward edge of seat and slide seat to a position such that when you’re sitting with your back fully against the backrest, there is at least 1" of clearance between the front edge of the seat and the back of your knee. Release lever. To Raise or Lower Depress button, move to desired height and release