1) Position the ramps on a level surface, with the scales located in the ramp section. Push the wheelchair onto the scales so the castors are centrally aligned on the top surface of the scales. Record the value shown by the scales for both the left and right castors.
2) Push the wheelchair forwards so the rear wheels are positioned centrally on the scales. The casotrs will be located at some point on the flat surface of the ramp.
3) Push the wheelchair forwards so it is fully on the flat surface of the ramps. Engage the wheelchair brakes, and move the ramps from the rear to the front of the wheelchair.
4) Push the wheelchair forwards so the castors are centrally located on the scales. Record the measurements.
5) All measurements have now been taken. The wheelchair can be taken off the ramps.