OK , it sounds to me like you have forced the slack out and clamped the lovejoy down to hold the slack out. THis is probably not a good way to do this. If I understand what I was looking at in the video there is no thrust bearing on the motor side, it is on the oppisite side where the hand crank is. What you have done will take the slop out, but now you have pressure on your motor shaft and this will cause wear/problems latter on.
I think what I would do is go to the side that has the thrust bearing and look at its design. There needs to be away to shim it so that it holds the screw from moving in those directions. Its seems to me that there would need to be some kinda locking nut on the thrust bearing side so you could shim this bearing to take the slop out and not need to reley on pressing the screw in one direction and locking the motor and lovejoy down to hold it. This will wear your motor and lovejoy.
You should be able to take the motor and the lovejoy totally off and there be no slack in the table/screw set. This is how it needs to be done. What ever it takes to make it that way is what you need to do. And it will be with the thrust bearing setup that you will be able to achive this.
Jess  |