How does the load level switch work on a ge washer?

I have a GE washer and I took the LOAD LEVEL WASHER off to check the resistance (it was fine). When I tried to put it back together, either a part was missing or I broke something off, so now there is only one level? Is there a way to find the specs for this?

http://www.ehow.com/info_12018194_water-levels-work-washing-machine.html

To find the specs you need a model number.