Cleaning a old tonearm

Agree that cleaning will not be a problem. Any good degreaser/cleaner will work. Just ensure you rinse and dry effectively.

I always used Q tips and alcohol but I'll try the pledge, it sounds good.

If you use lighter fluid or other hydrocarbon solvent, use outdoors or w substantial ventilation AND make sure you dispose of surplus properly; i.e., not on ground out back or down the drain.

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.

Dougdeacon: I recommend using the WD-40 only after the use of lighter fluid, as it is a great degrease and cleaner.My only concern is after cleaning the tonearm you could strip it of it's natural oil's. And in the near future start to pit and show some sign's of rust.I would wipe most of the WD-40 off and only leave a very light coat. But the pledge sounds great
since it is a multi purpose cleaner and that should do the trick.