No it isn't a medical problem.. I was heaving my X320 plow around coz the side pins get stuck.. I suddenly realized I can't lower the plow ! I have got it up on the ramps and loosened the main spring right off ..... No joy... I can pull the foot pedal up a little and latch it but it wont go back down, Been underneath and took this photo...The big black spring goes from one rod to the other and that can't be right... It looks to me like the left hand of the spring should hook into one of the holes in the curved 'horn' to the right of it... Am I right, and if so how do I extend the spring (It is bloody strong) and which of the 3 holes in the 'horn' would it go in ? HELP I am in Wisconsin and this mini-heatwave can't last long...