[Jukebox-list] AMI E120 procedure for aligning racks?

[Carmack]

Hey guys,

Restoring an AMI E120 from a bunch of parts in boxes.  Got the mechanism 
working fairly well, except for a couple of small gremlins.  One of the 
gremlins that's plaguing me is the record rack alignment.  While 
scanning, the gripper will drag on records inconsistently.   There seems 
to be some slop in the mechanism that causes a drag in one direction to 
be perfect alignment in the other.  Some "drags" make the records 
physically move in the rack, but when the mech is stopped on that 
portion of the rack, everything appears to line up perfectly, both 
vertically and laterally when viewed from the side of the rack.  I've 
adjusted the bolts till I'm blue in the face.  Is there a "proper" 
procedure for this?  The service manuals don't seem to give any 
information on alignment except for turntable-to-gripper.  I've noticed 
some of the AMI E's on Youtube do the same thing as well.  Is this just 
a quirk of this series?  How do our wise experts deal with this?

Thank you!