If you are unable to perform chin ups or dips with your own body weight you can stand on the foot lever while doing the exercise and this will help you do the exercise movement by reducing your body weight.
There are 4 different assistance settings which will remove a percentage of your body weight while performing the exercise. To adjust the foot lever assistance setting simply lift the foot lever up and click it into one of the four notched settings.
When the foot lever is all the way in and in the first setting, 120lbs of your bodyweight is removed. The second setting removes 100lbs of your bodyweight, the third 80lbs and when the foot lever is all the way out and in the fourth setting, 60lbs of your bodyweight is removed.