slimpickins

Not sure if yours is the same but if the cable is a little too tight when it locks there is a finger in the back that locks the left clicker piece from rotation backwards. This would cause the problem. Before you adjust it is easier to do if you take off the cover and look as it is attached to a spring and hard to tell when the slack is out. It is pretty obvious how it works. Mine was more than adjustment it needed to be cleaned and lubed. Careful not to get cleaning or lube down in. It works like a pen. They call it a clicker. Adjustment can not be too loose or too tight it's kind of fussy. The other thing is that it helps to wiggle the machine back and forth at the top of the throw. Here is a link to view its opperation Hope this helps http://www.youtube.com/watch?v=eh1nFjSaags I also made sure it was in two wheel position as I closed as I never use the one wheel position.

I have the same model and just fixed mine.Before you adjust the cable it is easier to do if you take off the cover and look as it is attached to a spring and hard to tell when the slack is out. It is pretty obvious how it works. Mine was more than adjustment it needed to be cleaned and lubed. Careful not to get cleaning or lube down in. It works like a pen. They call it a clicker. Adjustment can not be too loose or too tight it's kind of fussy. The other thing is that it helps to wiggle the machine back and forth at the top of the throw. Here is a link to view its opperation http://www.youtube.com/watch?v=eh1nFjSaags I also made sure it was in two wheel position as I closed as I never use the one wheel position.