recently purchased a jet 1340 gearhead lathe which is about 10 years old,but used only a few times,the lathe even still had a lot of the cosmolene still on it,but the problem is the automatic crossfeeed will not engage.the longitudinal feed works great,but i try to shift the handle to engage the crossfeed,it will not activate,took the pin out and the front plate off,everything inside seems to be intact,but can not figure this out,does anyone have any advice for me on this problem,thanks for looking ,Steve