Needing some technical help please. I'm trying to restore a Meade LX200 7" Maksutov. Other than electrical issues, go figure huh, I'm having some issues with the RA slow motion knob assembly. It doesn't seem to slew the scope and at times it will move it then jam. I've taken the knob off and changed the death of the knob and shaft, no avail. I noticed that the knob assembly seems to be off centered for some reason. I unscrewed the set screw holding the assembly into the base and pulled out the knob, shaft insert and the shaft with head. It appears to be grinding at times. I've included pics to let you see. Is there any special tricks in aligning the gear shaft of the knob assembly to the main RA gear?
Is the knob assembly gear head worn out where it won't engage? If anyone has a retired LX200 classic sitting around, I'd like to purchase the assembly and see if it cures the slewing blues.
Thanks in advance