Workout load
Select the desired workout load by using the weight stack selector pin. 
To increase: Select a lower position on the weight stack.
To decrease: Select a higher position on the weight stack.

2.5kg increment
To engage: Push the selector handle towards the back of thee weight stack.
To disengage: Pull the selector handle towards the user.

Range selector
To increase: Pull the handle, move the knee pads closer together and select a starting position.
To decrease:  Pull the handle, move the knee pads away from each other and select a starting position.