• The move to the new server is done. There are some software and database maintenance updates in process. This has us passing the hat around to help out. We appreciate any donations. Seriously, even a dollar helps. The payment page may be found here - https://www.audiokarma.org/support.html

Pioneer PL-9 platter rubs

mjgillen

mjgillen

Active Member
Hi guys!

I had to replace the belt on the PL-9 and now the platter rubs. If I wedge the bottom up from underneath it does not rub and all works as expected.

I had to remove the feet to get to the belt and the four rubber "dampers" crumbled into uselessness and I tossed the pieces. I have a feeling that may be the problem unless the four feet are different and I put them on incorrectly (are some longer than others?).

Any suggestions on how to repair / work around this issue? Pioneer parts does not show these parts as available (PEB-179 "Damper rubber"). I'm glad I ordered three extra belts several years ago when I needed just one...

Thanks,
Michael
 
Register to hide this ad
The most likely thing is that when you discarded the rubber pieces, the table started to sit just a tiny bit lower than it would have otherwise.

You can usually grab decent shape replacements for the Pioneers on eBay for $20 or so. Beej would be able to tell you whether they're the same on the PL-9 as on the lower models in that series.
 
the platter rubbing sound i had ended up being the belt rubbing on the 33-45 selector, if your model has that switch try moving it a little, also, if it is a spring support, you can adjust the platter height and alignment with the springs by turning while pushing up, and clicking them, may not be on your model
 
PL-9 insulators (that's what the feet are called) are indeed quite different from the other models in the series. And as rare as the PL-9s are, spare insulators are even more-so. Regardless, retain the mounting screws and plastic portions of the PL-9 insulators that you have now for future use. I'm out of town right now and won't be home until next weekend. I'll see if I've got something in my spare parts inventory that will work. I'll be in touch.
 
mjgillen said:
Hi guys!

I had to replace the belt on the PL-9 and now the platter rubs. If I wedge the bottom up from underneath it does not rub and all works as expected.

I had to remove the feet to get to the belt and the four rubber "dampers" crumbled into uselessness and I tossed the pieces. I have a feeling that may be the problem unless the four feet are different and I put them on incorrectly (are some longer than others?).

Any suggestions on how to repair / work around this issue? Pioneer parts does not show these parts as available (PEB-179 "Damper rubber"). I'm glad I ordered three extra belts several years ago when I needed just one...

Thanks,
Michael
Click to expand...

I don't know about your particular turntable but my Pioneer PL-41 platter was rubbing because the platter spindle thrust pad was shattered, so I replaced it.
 
Does anyone out there with a PL-9 turntable know if the rubber boot around the spring is supposed to fit through hole in the bottom of the chassis? Anyone with a pic?
In other words, how is the suspension supposed to work? I'm just guessing, but it looks like the bottom chassis that has all the "guts" like the motor etc is supposed to rest on the bottom ledge of the spring/boot assembly, but I'd like to know for sure. Thanks in advance!
 
Last edited:
Hi. I know the series reasonably well and, yes, the insulator (what the assembly is called) screws into the underside of the panel. The screw fits into the plastic portion of the foot and the rubber insulator fits over that. The assembly then screws into the panel body. I'll dig up a pic and post it here.
 
This is where the 3d printer comes in handy. Rigid is easy and flexible can be printed from TPE or similar.

I admit my evil mind saw the title and thought, "Hmmm, platter rubs? Maybe 1 part garlic, 2 parts onion and 3 parts metal polish?"
 
I’ve seen people make rubber boot replacements out of bicycle hoses, and I’ve repaired the boots from a PL-300 using some bicycle hoses and rubber cement.
Regarding the way the suspension works, the bottom plate is suspended from the top plate by the springs and rubber boots.
As the platter and tonearm sits on the bottom plate deteriorating rubber boots will cause the whole assembly to drop and often cause the platter to scrape on the top plate. Of course the isolation also fails.
 
mjgillen said:
Hi guys!

I had to replace the belt on the PL-9 and now the platter rubs. If I wedge the bottom up from underneath it does not rub and all works as expected.

I had to remove the feet to get to the belt and the four rubber "dampers" crumbled into uselessness and I tossed the pieces. I have a feeling that may be the problem unless the four feet are different and I put them on incorrectly (are some longer than others?).

Any suggestions on how to repair / work around this issue? Pioneer parts does not show these parts as available (PEB-179 "Damper rubber"). I'm glad I ordered three extra belts several years ago when I needed just one...

Thanks,
Michael
Click to expand...
These feet are all over the early 80's pioneers. I fix by buying a rubber washer that will sit between the spring and the metal bottom of the turntable. I think 3/4 ID is the correct size, but bring the spring to the hardware store to double check. Thickness is whatever you can find between 1/16" and 1/8". Trim the outside Diameter to fit.

I never replace the sleeve, but sone use bicycle inner tubes
 
You must log in or register to reply here.
Back
Top Bottom