Random suggestions:
Check the dressing of the tonearm wire. Make sure it isn't snagging on anything or pulling on the arm.
Decrease antiskating (read the manual to make sure you're DEcreasing and not INcreasing!). Take it down close to "zero", as a test.
Check that the arm cueing support is dropping low enough so that the armwand isn't brushing it as it traverses the record.
With the cueing lever down, swing the arm slowly and gently by hand into the label area and back out several times, feeling carefully for any binding. On an arm of this caliber you should feel virtually no resistance as you swing the arm back and forth. (Have the stylus guard on, or at least be careful not to snag the cantilever.)
Check the dressing of the tonearm wire. Make sure it isn't snagging on anything or pulling on the arm.
Decrease antiskating (read the manual to make sure you're DEcreasing and not INcreasing!). Take it down close to "zero", as a test.
Check that the arm cueing support is dropping low enough so that the armwand isn't brushing it as it traverses the record.
With the cueing lever down, swing the arm slowly and gently by hand into the label area and back out several times, feeling carefully for any binding. On an arm of this caliber you should feel virtually no resistance as you swing the arm back and forth. (Have the stylus guard on, or at least be careful not to snag the cantilever.)