I recently acquired a mid-70’s model 10″ Rockwell Delta radial arm saw.  It is in good working order and I have always like this saw; I learned on one when I was a young teen.  It has one problem – the arm under the turret rocks on the center point when I move the saw head from back to front and back again.  There does not appear to be any form of gasket or ring between the turret and the arm.

I would like to hear from anyone who knows what to do about this.  I do not have the owner’s manual for this saw.

Thanks.