Gorton 8-1/2d X-axis Feed Slipping

Hi all,

I finally got around to wiring in the vfd for my gorton mill's power feed. All works fine, except that the mechanical clutch won't stay engaged when feeding the x axis left to right. It stays engaged for 1, maybe 2 revolutions of the lead screw, then it slips out of gear. The other direction, and the other axis all work fine. The problem happens in all feed speeds, except the very lowest (0.6ipm).

I'm guessing it's a problem with the clutch itself, but I'm not sure how to...

Gorton 8-1/2d X-axis Feed Slipping