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Servicing a ‘Just Serviced’ Technics SL-10!

“To service or to service properly?” That is the question!

Well, that’s one question owners of turntables like the Technics SL-10 must consider periodically, say every five years or so. It’s a question worth considering too, because ‘service’ clearly means quite different things to different people. The differences can make or quite literally break a piece like this.

Join me as I discuss some service considerations and show how differences in technical approach and attention to detail can make a big difference to owners of beautiful turntables like this Technics SL-10. Just as “Oils ain’t oils”, services ain’t services either!

Background

I won’t run through all the details of the legendary Technics SL-10 direct-drive turntable as I wrote a detailed review back in 2017. This stimulated a lot of interest, and I truly love these LP jacket-sized beauties. I reckon they are one of the best bang-per-buck machines available. Amongst their peers in terms of price, I’d probably pick a Technics SL-10 above most others.

Linear trackers are cool anyway, as my Pioneer PL-L1000 and Technics SL-M3 articles show, and one of my serious collector-customers with a great collection of irreplaceable classics, Scott, decided he wanted a Technics SL-10 after a chat. He subsequently bought this SL-10 locally, described as having “Just been professionally serviced”:

Technics SL-10
This is a just serviced Technics SL-10, or is it? (Hint: It is an SL-10!) The greasy residue on the outside is not easily visible here, and I’d already removed the worst of it.

Scott brings all his purchases to me for inspection and service. Whilst he was initially pleased to learn that this SL-10 had “Just been professionally serviced,” he mentioned that, upon closer inspection, he had some doubts about this claim.

I was also skeptical of the claim of professional service, which from experience often turns out to be far from the truth, and because of the greasy residue covering the deck, the dirt inside and out, and the various ‘tell-tales’ showing me that critical items had been missed.

Should you need to service a just serviced Technics SL-10? Well, that’s the real question, isn’t it?

Analysis

Some love my articles, some would rather I didn’t write them at all, and others get upset with me for not sharing enough service and repair technical details, etc. I’d simply ask, how many people write anything at all, let alone create useful, original, respected content for nearly 15 years?!

There is a balance in terms of wanting people to see and understand the details vs not helping competitors and letting people figure things out for themselves, of course. You’ll never take the teacher out of me though and I like to present information and allow people decide what to do with it. Most seem to like the balance; that’s the goal.

A closer look at this Technics SL-10 showed a ton of original factory grease, an oily residue all over the chassis, a cheap replacement stylus on a non-original Technics T4P cartridge, a likely never-been-lubed direct drive motor and perhaps the original 40-year-old carriage drive belt. No kidding, this turntable had not been professionally serviced in a very long time.

Liquid Audio began life as a turntable specialist, and I’d humbly suggest that two Perth businesses continue to work with the majority of turntables here in a way that discerning owners appreciate and trust above others. Neither Jason nor I leave turntables looking like this, so where did it go? We will likely never know.

Technics SL-10
I don’t know how easy it is to see, but this thing is dirty. It wasn’t even cleaned, let alone serviced.

Service

Thoroughly servicing a Technics SL-10 requires attention to a few key areas. Keep in mind that Technics has an excellent service manual for these, but did not publish extended-service maintenance procedures because, like other manufacturers, they never developed them. That’s because they never expected equipment like this to still be in service 40 years on, but it is. I’ve written about this.

As a result, many of us working on older equipment have developed specific extended service procedures for them, and I apply mine to every Technics SL-10 and other vintage turntable that visits my workshop. Key areas of attention with any SL-10 that visits me include:

  • Carriage drive
  • Record clamp
  • Platter/motor/spindle
  • Platter drive electronics
  • Arm/cart adjustments
  • Lid/chassis/suspension
  • Cartridge/stylus

Note that this doesn’t mean each SL-10 needs the same amount of work. It depends on the condition and service history of each unit, but I carefully examine each area. I use three types of greases and light lubricants for my SL-10 service procedures, along with various cleaning materials and consumables, belts, styli, etc.

So, how about we finish this job? Note that this is not a tutorial, and I will omit some technical details to keep a few things up my sleeve.

Technics SL-10
My first job was to clean all surfaces and then remove the platter to access the motor, spindle bearing and drive electronics. This is important and yet rarely done. Whilst here, I checked all the drive electronics for signs of trouble and lubricated the motor/spindle with a special synthetic bearing oil. I also cleaned the platter and made sure the magnet was free from debris. Magnets + ferromagnetic debris = trouble! Note the orientation of the platter and the little cooling fins designed to create airflow around the motor and electronics. Very clever.
Technics SL-10
Does anyone see a problem here? That carriage drive belt is t-o-a-s-t! Just serviced? That belt is probably 40 years old!
Technics SL-10
This dry, cracked and deformed drive belt proves that no useful carriage maintenance was completed on this machine at any time recently.
Technics SL-10
Bad belt, good belt! Note that the good belt here on the right is to show what they should look like. I used my last correct SL-10 belt on this machine and have just ordered 10 more!
Technics SL-10
And there is that last correctly sized drive belt, just installed and needing to be fully seated by rotating the pulley. This image also shows us another issue, just a little to the right…
Technics SL-10
That’s right, tons of original factory grease. Some of this will always remain, but I was able to remove great big blobs of it from the carriage worm and pinion gears. I always re-lube with modern synthetic greases and oils that last longer and, along with other maintenance, leave these decks operating more smoothly and reduce drive-train loads. Sometimes, the carriage drive motors become seized, in which case I remove them for deep service. There is a bit more I do here under the arm drive circuit board and with the arm linear bearing, but just know that we don’t cut corners. I think you can see that.
Technics SL-10
I’ve just cleaned the original factory grease from the SL-10 record clamp thrust bearing, another thing few bother to do, though I’m sure after seeing this some will say they also do… Note the tiny indentation left by the clamp ball bearing.
Technics SL-10
Here, I am about to apply fresh MoS2 grease, as originally used by Technics on these machines.
Technics SL-10
You beauty! I’m showing this because you can’t miss it when you disassemble these decks, yet it rarely receives attention, making the effort even more worthwhile.
Technics SL-10
The cheap clone stylus mounted to this non-original but still Technics cartridge (not the original and legendary EPS-310MC) sounded pretty awful, so a nice Japanese Nagaoka replacement from stock was the obvious and affordable way to resolve this. These Japanese styli are much better than the cheapies and, with a little attention to arm adjustments, this deck sounds great.
Technics SL-10
This lovely Nagaoka stylus nicely solves this problem until the owner can track down a properly rebuilt EPS-310MC. I’ve just ordered more of these, too.

Results

This Technics SL-10 direct-drive turntable has come up beautifully after thorough service and sounds great. Tonearm and deck operations are now smoother, quieter and more precise, and she sounds more revealing and refined now with her new stylus and a bit of TLC.

Yes, she is missing her EPS-310MC moving coil cartridge, and that’s a bummer. I have one, but it’s not for sale. Scott will be looking for one though, so if you have one to sell, let me know. In the meantime, the new Nagaoka stylus significantly improves upon what this deck came with.

The best part of all this is that service work of the type I’ve shown here is just as affordable as the pretend service and costs even less in the long run. Skilled work always represents real value vs doing little to nothing of any use, slapping on an almost impossible-to-remove sticker, tagging a mains cable and saying it’s ‘professionally serviced’!

That approach helps neither the equipment nor the people who own it. Equipment then has to be looked at again properly, just as we needed to do here, saving nobody anything at all.

Technics SL-10
I think I need one of these for the collection.
Technics SL-10
Hopefully, the reduction in grease and grime is evident here; this lovely Technics SL-10 is now properly serviced and ready to enjoy once again.
Technics SL-10
What gorgeous things SL-10s are. This was a high point for Technics; it went downhill from here for a very long time, but that’s another story.
Technics SL-10
And yes, I know I need to clean my work area! But look at the SL-10!

Final Thoughts

As always, thanks to all for visiting and especially my loyal customers and readers. I hope you found this article helpful, and if you have any questions, let me know.

I always do my best to assist customers needing equipment serviced. I only draw the line where equipment has been badly damaged. The takeaway from all this is to simply remember that, like all things, technical service and repair work exists on a spectrum.

If you’d like me to look at your Technics SL-10 or any other lovely Technics turntable, just get in touch via the contact page.

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6 thoughts on “Servicing a ‘Just Serviced’ Technics SL-10!”

  1. Great wirk as always Mike! Love these writeups. I’m wondering if you’re getting close to caught up on work to where I can schedule shipping my much loved & frustratingly impossible to fully repair in my neck of the woods Sharp Optonica TT down Perth way? I along with the best tech in my area can get her to spin at the corrrect rpms for 6 weeks to 2 months or so by merely relacing the parts the service manual says are the culprits in speed related errors only to have them recur again & again. I believe something else on the board is misfuctioning & trashing the new parts repeatedly but it’s above my & his skill level to solve. Help me Obi-Mike, you’re my only hope! LOL!!

    1. Hi Tim, thank you and wow, I’d forgotten about this turntable of yours. I’ll certainly look at this for you when I get a chance but I would suggest also considering an alternative, better and more reliable machine as an option. I should be able to look at this one this year sometime though.

  2. Really a sincere repairs job done .Now very rare techies are avsilable there to do the job perfectly .

  3. Rob in Melbourne

    Always a joy and a bright start to a day to find a link to one of Mike’s yarns in my Inbox 🙂 Thanks for putting the time into sharing this including your generous sharing of your experience of the particular steps that should be done to perform this properly!

    I see a few of those EPS-301MC cartridges and stylii advertised with eyebrow-raising prices as NOS you-know-where but I have to admit my scepticism about whether they are truly new or low-mileage and whether the delicate boron cantilever of the stylus is still in good order, let alone the tip itself, 30-40 years down the track (or grooves). Perhaps a new MM cartridge and a new microline or similar cartridge might be almost as good, easier to obtain?

    1. Hi Rob, glad you are enjoying the content and thanks for your kind words. The EPS-310MC is a true gem, and in reality, no MM can replicate what a good MC can do. Given that these carts can be rebuilt though, it’s less of a problem and more of a temporary frustration for owners. The solution is trickier because there are very few T4P carts available at all, let alone good ones. The 310MC is the best T4P cart I’ve heard. Finding properly rebuilt ones is the challenge.

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