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...the internet time-machine went back to 2009 to find his suggestion for freeing a stuck platter that I applied to my Denon DP-75 just now. I put a tiny drop of WD-40 on the spindle while I cut 2 small cork discs to place under the platter (cut to the right thickness to hold it up just the 2-3 mm of play that it had). These are accessible only through the finger-holes, as the rim is completely enclosed in a skirt. After a small shot of whisky for courage, I GINGERLY tapped the spindle with a plastic mallet. Bingo. A mallet that now has the Viking name "Platter Persuader." Thanks for the tip.The fit of the platter on to the spindle is a beautifully-machined taper; the aluminum seems to have oxidized a tiny bit against the dissimilar chrome-plated steel of the spindle.
Edits: 09/22/16Follow Ups:
Might a light penetrating oil have worked as well? I have a DP-3000 with the same problem.
What was your reason for wanting your platter off? I thought to clean beneath mine, & perhaps apply 1 or 2 drops of oil down the shaft -- I know, Denon bearing were supposed to "virtually never" need lubrication, but still, after 40 years . . . ?
Jeremy
I am packing the DP-75 up to sell. I had to put in the transit screw that holds the transformer from flopping around on its rubber suspension when shipping and also to pack the platter in a separate inner box, wrapped like heck. (It's imperative not to damage the magnetic strip inside the rim!)
I used WD-40 because it tends to clean up well when wiped off thoroughly and I didn't want any stronger solvents around the Denon guts.
I wiped the inside of the platter tapered hole with a tiny dab of silicone grease on a q-tip to get out the corrosion gunk and leave a little protection.
If your platter spins totally freely I would not oil it. It hard to tell where the oil could end up. I had oiled a past DP-2000 with one tiny drop of Tri-Flow without harm though. I haven't seen TriFlow hurt anything in 30 or so years its been around.
What base is your 3000 in- a Denon wood one? I had one 3000, it's a beast!
Thank you mr.bear! I have sent you a private response.
Jeremy
WD-40 has its uses; however I would try to wipe it all off now that things are apart and possibly even use some Isopropanol to clean it then lubricate with either an oil or silicone based lubricant-
when WD-40 dries it becomes hydroscopic- and can draw moisture (water) into the area causing corrosion -
Also unfinished aluminum will 'rust' - it will form a white dust and the surface becomes pitted- the dust is Al2O3, or Aluminum Oxide, a very common abrasive....
Happy Listening
Really? I did not know that! I spray that stuff all over my guns! I better take a look at the Smith and Wesson 9mm....
No! I wouldn't use WD-40 on firearms. I use Break Free CLP.
i also had a platter stuck that i was sure would come loose easily but wouldn't. i held the platter up through the hole (from the top) and taped the center of the spindle with a weighty piece of lead and it popped off.
had i used a plastic headed mallet (you've seen them with their yellow plastic replaceable tip), i am confident that the result would have been the same. i new i couldn't use a hard metal for fear of defacing the top of the spindle.
...regards...tr
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