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Old 17th Jan 2020, 6:01 pm   #1
'LIVEWIRE?'
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Question Goldring Lenco GL75 problems

Basically the speed change slider is stuck solidly on 33.333RPM, and can't be moved whether the turntable running or stationary, and I'm also having difficulty removing the platter. I'm not familiar with these decks although I suspect the problems might be due to hardened grease. According to the service manual, the platter is supposed to be removable by tapping the spindle, whilst pulling on the platter, but I'm having no joy. Anyone have any bright ideas as how to remove the platter, please? (NB. there is no circlip or other securing device around the spindle)
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Old 17th Jan 2020, 6:06 pm   #2
Edward Huggins
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Default Re: Goldring Lenco GL75 problems

Tapping the spindle usually works? To back up the info in the Manual, go to LENCO HEAVEN. There's a mass of hints and tips there. Be aware of the conical mechanism.
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Old 17th Jan 2020, 6:06 pm   #3
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Default Re: Goldring Lenco GL75 problems

Hope I'm allowed to post this link:

https://www.lencoheaven.net/forum/index.php?topic=72.0

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Old 17th Jan 2020, 6:17 pm   #4
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Default Re: Goldring Lenco GL75 problems

That's really good info if I'm having any trouble with my 75's. Thanks for the link ajgriff. I might well have done damage!

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Old 17th Jan 2020, 8:21 pm   #5
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Default Re: Goldring Lenco GL75 problems

Basically that is what I've, without success so far, tried to do, but as the platter may not have been removed for many years, if at all, would any harm result from applying Plus Gas or a light lubricant, to the spindle, followed by a combination of lifting & tapping, in order to loosen/remove it?
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Old 17th Jan 2020, 8:38 pm   #6
Ted Kendall
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Default Re: Goldring Lenco GL75 problems

I'd pack the platter up with paper towelling wads and tap the spindle with a wooden mallet.
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Old 17th Jan 2020, 9:40 pm   #7
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Default Re: Goldring Lenco GL75 problems

or little wedges (wooden or those plastic ones builders use for levelling) to raise the platter by 3mm or so, then bash the spindle with a the handle of a big screwdriver.

As for the speed change problem, I presume you know you have to LIFT the knob before trying to move it? These decks have a cunning infinitely variable speed selector with "preset" stops.
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Old 17th Jan 2020, 9:58 pm   #8
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Default Re: Goldring Lenco GL75 problems

Are there other record decks with a Tapered spindle? I'm wondering what forces lock things up so tight here-not just gunk? I hope it's not OT to say that I've only ever seen this "taper" effect with the fan of a vehicle I once had. There were specialists expensive "pullers" you could buy but the only thing guaranteed to get it off was hitting the shaft, at exactly the right place, with a mild steel bar! [The fan had some electrics behind it].

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Old 17th Jan 2020, 10:40 pm   #9
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Default Re: Goldring Lenco GL75 problems

Some early Garrards had tapered spindles and often it was hard to get the turntable off.

Another way of releasing it is to loosen the small screw on the main bearing so that you can pull the turntable out with the spindle. Once out it shouldn't be difficult to tap the spindle out.
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Old 18th Jan 2020, 1:17 am   #10
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Default Re: Goldring Lenco GL75 problems

Honestly - whack it!! If necessary with something with plenty of mass, a hammer for example - but at the same time exert some upward pressure on the platter with your other hand. Those platters really can stick - and bear in mind the platter is very heavy, so much so that you might not think it has come free. After many years the speed selector mechanism might have rusted stuck. No problem - WD40 and manipulation. The little sockets for the speeds are movable and should be set with aid of a strobe disc. If they are out of range, there is another setting on the lever which moves the idler which can be adjusted to compensate - it's fairly obvious. These things are truly indestructible - the last one I resurrected came out of a skip and was to all appearances mostly rust.
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Old 18th Jan 2020, 1:53 am   #11
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Default Re: Goldring Lenco GL75 problems

Really, these things are tanks. I have a GL59 and have fixed up an L75 for a friend. You sometimes really have to yank on the platter. If you can get your fingers underneath it will come up if you put your back into it (not having anything to bash on the spindle to hand). You aren't going to damage it, as it's not a modern Chinesium plastic thing. The platter just sits on the slightly tapered spindle and the friction between the two surfaces, and the weight of the platter holds them together. You have to break that stiction with a good tug. Be aware that it can come off in a rush and you can be in danger of clonking yourself in the head. Been there, etc.

There are numerous helpful instructions over at Lenco Heaven on re-lubricating the spindle, which is well worth doing. I wouldn't fret too much over their more esoteric instructions as some good single weight oil will do as well as anything else. I'm using some my brother had left over from oiling his air compressor. If you haven't a good seal on the cap at the bottom of the spindle, it will leak out a bit so be aware of that. A 'classic car' element to the ownership experience.

As others have said, the slider lifts up out of the rests for different speeds. These rests can be unscrewed and moved for speed matching if you have a strobe disk. Otherwise, you lift it up and have an infinite variability of speed between ~16 and ~78. The cone-drive underneath is self-explanatory, and the only thing I can imagine that can have happened if it really IS stuck is that the metal angle that guides the rod with the idler wheel on has snagged the rod. Some force will clear that, though having yanked the platter off all that will be obvious.

Go for it!
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Old 18th Jan 2020, 2:24 am   #12
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Default Re: Goldring Lenco GL75 problems

Quote:
Originally Posted by Uncle Bulgaria View Post
Really, these things are tanks. I have a GL59

Go for it!
My rustbucket was a GL59 - with the nice old spring balance arm. There really is no killing these old things - it worked faultlessly after very simple restoration.
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Old 18th Jan 2020, 10:00 am   #13
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Default Re: Goldring Lenco GL75 problems

Thanks, all, for your advice. I'll act upon it when next in my workshop. The turntable is basically running OK, so if the speed change lever works it's 'problem solved'! I have to check, and if necessary, adjust the tracking weight, as the counterweight had been removed when i received the deck. This, in the absence of any data on the cartridge fitted, I'll set to between 2 & 2.5 grams.
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Old 18th Jan 2020, 10:26 am   #14
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Default Re: Goldring Lenco GL75 problems

The turntable shouldn’t be transported with either the platter or the counterweights in place. There is a danger of the counterweights snapping off the end of the tone arm, and the weight of the turntable if it did fall off ( unlikely if it is stuck on) in transit wrecking the whole deck.
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Old 18th Jan 2020, 10:55 am   #15
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Default Re: Goldring Lenco GL75 problems

If the complaint is rumble, check the two red motor transit screws have been unscrewed
to release the motor. I've seen this many times !
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Old 18th Jan 2020, 11:53 am   #16
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Default Re: Goldring Lenco GL75 problems

As I noted the main counterweight had been removed, but the smaller one left in place, which doesn't seem to have caused any harm to the mechanism. The transit screws may not have been removed, as the deck doesn't 'float on springs', as I'd expect it to.
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Old 18th Jan 2020, 12:30 pm   #17
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Default Re: Goldring Lenco GL75 problems

The RED transit screws for the motor are under the platter - you need to take that off to check. Although you can see if the motor is floating on it's springs you won't be able to check that the screws are fully set.
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Old 18th Jan 2020, 4:02 pm   #18
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Default Re: Goldring Lenco GL75 problems

These decks don't float like BSRs and Garrards.
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Old 18th Jan 2020, 4:19 pm   #19
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Default Re: Goldring Lenco GL75 problems

Raise the platter as high as it will go and insert two wooden tapered wedges in the gap, then tap spindle with a hide or copper mallet, NOT a steel hammer, unless you want to damage the spindle end.
You could soak the spindle in penetrating oil first. Diesel work well in my experience.
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Old 19th Jan 2020, 1:38 pm   #20
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Default Re: Goldring Lenco GL75 problems

Quote:
Originally Posted by 'LIVEWIRE?' View Post
As I noted the main counterweight had been removed, but the smaller one left in place, which doesn't seem to have caused any harm to the mechanism.
You've not mentioned the third arm weight, the Anti-Skating weight. Is it still there?
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