Does anyone know how to remove the counter weight shaft from the tonearm , so that I can replace rubber bushing that is sagging. I see one grub screw in the shaft and two below on the round part of the arm, but not sure which area. Also, can anyone confirm whether they can be removed, because I see some residue that looks like glue. This is from a QL-10 that is in great shape, except the arm, and I would like to have it spin vinyl again. Thanks.
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look up (QL-7 counterweight rubber bushing) thread here in diyaudio
whatever you do don't hard couple the weight, it needs decoupling on this arm
Every single bass note would get you an extra note thrown in for free (ringing)
whatever you do don't hard couple the weight, it needs decoupling on this arm
Every single bass note would get you an extra note thrown in for free (ringing)
I completely agree. I've done several of these and it's usually simple to rotate the stub and the sag will reverse itself.
Thanks everyone. I picked up a 1.5mm allen and will try it tonight. I am a little that the grub screws are stripped that one on the right looks almost like a circle. What is that residue by the way?
Thanks again.
Thanks again.
I was able to work on it today. Couple of weeks ago in anticipation,I picked up a box of rubber spacers. After everyone’s wise instructions I was able to get the shaft off. I realized the spacer would have to be cut on one side to stretch over the shaft and glued back together. I then extracted the remnants of the deteriorating top rubber part. I realized the top rubber part is what keeps the shaft from sagging as much as the larger rubber spacer. Went to the hardware store and got the closest o-ring I could find. It applied enough pressure to the latter part of the shaft to alleviate the sagging (still a micro amount) I think it came out pretty good and cost $3. Probably could use a slightly thicker o-ring. Here’s some pics.
Thanks for everyone!!! Now I have a 5045 that needs a counterweight and damper replacement. A guy sold me the QA-7 for $100 because the tonearm issue.
Thanks for everyone!!! Now I have a 5045 that needs a counterweight and damper replacement. A guy sold me the QA-7 for $100 because the tonearm issue.
