Fixed cueing arm lift for Technics SL 1300-1400-1500 mk2

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beeroscar
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Re: Fixed cueing arm lift for Technics SL 1300-1400-1500 mk2

Post by beeroscar » 20 Dec 2016 23:53

The part from shapeways was too tight so I broke the whole piece :(. I managed to repair the original one. As I was struggling to fit the plastic piece I noticed a small spring lying on the work table. Now I see that the little pin is gone. Is there a possibility to find a replacement? I tried to reassemble the TT without the pin but the arm does not move when you set it on the beginning of the record. I probably messed up the arm. Back to the operation table again

sylvain999
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Re: Fixed cueing arm lift for Technics SL 1300-1400-1500 mk2

Post by sylvain999 » 22 Dec 2016 22:14

beeroscar wrote:The part from shapeways was too tight so I broke the whole piece :(. I managed to repair the original one. As I was struggling to fit the plastic piece I noticed a small spring lying on the work table. Now I see that the little pin is gone. Is there a possibility to find a replacement? I tried to reassemble the TT without the pin but the arm does not move when you set it on the beginning of the record. I probably messed up the arm. Back to the operation table again
You mean the spring and pin that locks the arm height with the screw on the left side? It should not keep the arm from playing records. Could it be the antiskate spring that is not in the right spot?

dutchflea
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Re: Fixed cueing arm lift for Technics SL 1300-1400-1500 mk2

Post by dutchflea » 23 Dec 2016 18:38

It isn't necessary: the pin + spring just prevent that you can "accidentally" remove the thumb screw for the arm height adjustment, after unscrewing it all the way, but that will never happen anyway. Nobody would unscrew it that far. ;) The thumb screw itself is responsible for locking the arm tight, nothing else.

I think many, many miniature spings and pins have gone lost during the cueing repair operations. And a lot of them unnoticed. :lol:

Skorpio
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Re: Fixed cueing arm lift for Technics SL 1300-1400-1500 mk2

Post by Skorpio » 22 Feb 2017 11:53

beeroscar wrote:This time I had to use a dremel tool to grind a notch in the screw head to use a flathead screw driver. The two screws are removed but the heads are destroyed. I'll deal with that problem later.
Hi Beeroskar :-)

I hope you have solved you trouble and got the machine back in working order?

I had the same problem (SL-1300 mk-2)with the screws as you...one came off ok, but the other one I had to drill out as I damaged it.

How did you solve this problem? Did you cut new thread in the metal? M3? Or what?
I stoped working on mine in september 2016 and would like to get it back to work...

BR/Bo

psychmonster
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Re: Fixed cueing arm lift for Technics SL 1300-1400-1500 mk2

Post by psychmonster » 10 Apr 2017 16:58

Excellent work...I have 3 units that can use this....thanks so much...I will put in an order

beeroscar
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Re: Fixed cueing arm lift for Technics SL 1300-1400-1500 mk2

Post by beeroscar » 19 Jun 2017 14:30

Skorpio wrote:
beeroscar wrote:This time I had to use a dremel tool to grind a notch in the screw head to use a flathead screw driver. The two screws are removed but the heads are destroyed. I'll deal with that problem later.
Hi Beeroskar :-)

I hope you have solved you trouble and got the machine back in working order?

I had the same problem (SL-1300 mk-2)with the screws as you...one came off ok, but the other one I had to drill out as I damaged it.

How did you solve this problem? Did you cut new thread in the metal? M3? Or what?
I stoped working on mine in september 2016 and would like to get it back to work...

BR/Bo
Sorry for the late answer Scorpio. I have got the turntable back in working order. After I grinded a new notch in the screw, I was able to get a grip with a flat head screwdriver and removed the screw.I replaced the screw with a similar from a sort of grill /ventilation port under the lower part of the chassis. The arm Works now and returns after the records is finished.

Spinnin_Wax
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Re: Fixed cueing arm lift for Technics SL 1300-1400-1500 mk2

Post by Spinnin_Wax » 22 Jun 2017 05:02

New to the forum here. I've had my SL-1300 MK2 since new in '78. Several years ago the tone arm lift stopped working. I recently got an interest in trying to repair it. A Google search brought me to this thread. Following your directions, I purchased the Shapeways part. It came in today. I just finished the install. It works great!
While I was inside it, I went ahead and re-lubed the mechanisms, and soldered on new leads.
I set it back up with a new Ortofon MM-Red cartridge. It's like a new turntable. I had forgotten just how good this thing worked when it was new.

Anyway, I just wanted to say thanks for the advice and especially for the work that was put into producing the replacement part.

Thanks again!

APe_1224 mE
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Re: Fixed cueing arm lift for Technics SL 1300-1400-1500 mk2

Post by APe_1224 mE » 12 Sep 2017 10:20

SDG0407 wrote:I uploaded it on shapeways (where i printed mine) so you can directly get it from them. The link to order it from them is in my precious post.

Also when you install the steel bushing into the new part make sure it is in the right orientation because the press fitting internal ring is not in the middle of the hole. BE SURE TO DO IT CORRECT because you can only fit it once since it is a tight fit.
I ordered the part from shapeways for the bronze bushing but the hole in the part is to small (10 mm) for the bronze bushing (diameter 10,6 mm). The original part of my SL1300mk2 was white so maybe the black one has a different bushing. Could you upload a new design with a 10,6 mm hole. I need it and promise to buy it. Thnaks in advance.

dutchflea
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Re: Fixed cueing arm lift for Technics SL 1300-1400-1500 mk2

Post by dutchflea » 13 Sep 2017 20:01

The black one is usually the one with the smooth bushing and has a smaller diameter. The knurled bushing has a larger diameter. Yes, fitting the new part is a very tight fit but it is possible with some patience and controlled force. If you really need a little bit more diameter you can always file off a little, slowly, bit by bit, until it fits?

SeattleChef
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Re: Fixed cueing arm lift for Technics SL 1300-1400-1500 mk2

Post by SeattleChef » 22 Sep 2017 00:08

I successfully repaired the cue arm lift function on my SL1400Mk2 using the Shapeways part (mine had the knurled bronze bushing), and now the lift and auto-return are working well. The issue I still have is that when cueing with the lever, the arm lift drops much too quickly unless I am extremely gentle and precise when lowering the arm. When the auto-return engages at the end of a side, however, the arm returns to the rest at a nice slow, even, speed.

My assumption is that I just need to refresh the damping fluid, so I obtained some 500k silicon oil as recommended. According to the service bulliten in the archives, though, on certain models (up to serial number 7920) one can not just inject new fluid - the whole lift bar assembly needs to be replaced. Is this really the case? I am having trouble locating a serial number on the table that even lines up with the format referenced in the bulliten.

I am also curious as to why the arm lowers at a reasonable rate when auto-returning, but not when lowered with the lever. Thoughts?

sylvain999
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Re: Fixed cueing arm lift for Technics SL 1300-1400-1500 mk2

Post by sylvain999 » 22 Sep 2017 00:38

The arm moves the auto return in a slower motion and with less force that what most people put on cueing arm. You will have to dismantle the whole thing. There is a C clip that holds the bushing in place it's tight and not easy to see , i use a pair of fine long nose pliers to push it out. remove the other c clip holding the spring and pull the shaft out. Clean all parts with alcool. Put some silicone just to fill the grooves in the shaft , re-assemble,operate by hand a few times and clean the over of silicone coming out of the assembly.

SeattleChef
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Re: Fixed cueing arm lift for Technics SL 1300-1400-1500 mk2

Post by SeattleChef » 22 Sep 2017 00:44

Thanks! Guess I know what I am doing tonight...fortunately, I just finished reassembling my other recent salvage project (near-mint SL23 that just needed a belt and a good cleaning) so I have a fresh unit to swap in :-)

At this point, I can tear down the SL1400 in about 5 minutes...

matz8916
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Re: Fixed cueing arm lift for Technics SL 1300-1400-1500 mk2

Post by matz8916 » 10 Nov 2017 16:15

Has anyone tried this piece to fix the cue problems with the 1300 mk1?

Mine does this.... https://www.youtube.com/watch?v=sVB-caLTz3k

Skorpio
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Re: Fixed cueing arm lift for Technics SL 1300-1400-1500 mk2

Post by Skorpio » 11 Jan 2018 11:38

I have completed the cue fix with the new part and it works very nice (SL-1300 mk-2 with bronze).

The problem is that the automatic is not...

I can turn the mechanism wheels so they are syncroniced and it works perfectly. But after a while it needs 2 or 3 pushes on the on button to start.

And the it never starts.....so I am using it manually now...

Anybody with a fix?

I have bought the player used with the cueing issue, so I don't know for sure if the automatic works probertly...

Best Regards :?:

cmarti
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Re: Fixed cueing arm lift for Technics SL 1300-1400-1500 mk2

Post by cmarti » 16 Feb 2018 05:26

Following this thread

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