My SuperMax mill only has three inch quile travel...
So I tore it down to find what was wrong. The part that drives the spindle and slides up/down has broken bit 'n pieces. see these pics:
I've gently pounded up and down and used air to get the bits of metal out shown in the first pic. Trying to slide the spline yoke up further results in a real tight bind.
I could use a good idea on how to take this apart.
Karl