I did not have time yesterday to get the pictures for you, but I got them today. I think this picture shows the biggest difference between the linkages. Yours has a pivot point right in front of the foot rest, where mine is all one piece. Try dropping the deck down, then clamp that pivot with a pair of vice grips and see if the back will lift. If you look at the last picture you posted, the point I am talking about is the one at the top right of the picture. I have more pictures if you need them.
Edited by CanadianHobbyFarmer, August 23, 2015 - 11:17 AM.