WD-40 leaves a gummy residue. I would not characterize it as a cleaning product and I would never use it on any piece of audio equipment.
Q-tips and alchohol work for me. My used TriPlanar was not only dusty when I received it, it was coated from end to end in silicone damping fluid. Yuck! (The seller failed to empty the damping trough before boxing it up - lazy or stupid, your choice!)
It took me 4-5 hours to clean it (the TP has a lot of parts, many more than a Grace) but I look on that as time well spent. I got to know the tonearm intimately before I even mounted it. That knowledge has repaid the effort it took to gain it many times over.
Q-tips and alchohol work for me. My used TriPlanar was not only dusty when I received it, it was coated from end to end in silicone damping fluid. Yuck! (The seller failed to empty the damping trough before boxing it up - lazy or stupid, your choice!)
It took me 4-5 hours to clean it (the TP has a lot of parts, many more than a Grace) but I look on that as time well spent. I got to know the tonearm intimately before I even mounted it. That knowledge has repaid the effort it took to gain it many times over.