I had a couple of gramophones (single spring motors) which I 'fixed' by joining the barrel to the driving gear. Then the gramophone could be played by cranking the winding handle to drive the turntable directly. The speed regulator still worked, as long as I kept some pressure on the winding handle as I turned it. So I could play records rather like a barrel organ, by continually turning the crank. Later, I got both gramophones repaired properly with new springs.
To be honest this video is quite educational, i've reacently bought a gramophone where the motor spring is broken or something, and i could not figure out how the get the shaft out, but it's just the tiny screw that needs to be removed.
Glad you found it interesting. I'm trying to make more entertainment rather than tutorial videos, as quite often I'm doing things on camera for the very first time and I don't know all the right approaches to things. Gramophones motors, especially the springs, can be very dangerous, so do make sure the motor is fully wound down before attempting to work on it, and make sure you know what you are doing with the springs if you are planning to work on them, or find someone who is. Depending on where you live, its possible to send motors away to be fixed, also. Thanks 👍 😀
I think we all agree it would be better to use a brass rod to drive out the shaft. Another thought that went through my mind was some advice from a machinist with lots of years experience "Don't force it, use a bigger hammer." Sometimes that's said in jest, but he was serious. His point was that the mass of the bigger hammer meant you didn't have to hit it as hard. I'm having trouble explaining in words, but it makes sense once you feel it. Think about F=ma. If you increase the mass you can decrease the acceleration. In the right situation, it works well. And this is just the kind of task where it applies. Of course you also have to worry about breaking the casting if the shaft is really frozen. Anyway, thanks for sharing as you explored this motor. I'm really enjoying watching your videos and am learning a lot.
Thanks 😀 👍. Yes, a brass rod or punch would have been better. Hopefully, I will remember next time. Good point, too, about using a heavier hammer. Fortunately, in this case, the shaft was not frozen, though it did move fairly slowly. The punch may have mushroomed the shaft, but it all went back together fine afterwards, so I don't think any harm was done. Realistically, that motor is unlikely to ever have new springs anyway due to the cost and the need to reverse the modification made to the spring barrel where the gear has been bolted on.
I am planning to send my gramophone to my friend to fix it as he knows more than me about these machines because he study about them for like a whole lot of years and he have a lot of spare parts so I could also tell him to put a better soundbox and hopefully he will give me free of charge of the repair of the motor and the soundbox
8:26 You should be hitting a brass rod or even a plastic rod against that axle end. Anything other than a steel rod. The reason is brass is softer than steel. Using the steel punch/rod can mushroom the axle.
Yes, if I'd realised at the time it was going to take as many knocks as it did, I could have found a piece of brass or something. I didn't film it, but it has gone back together OK, so it seems to be fine. Thanks 😀 👍
@@mrrgstuff Why aren't you fixing it? Also, if you have a drill, it would be worth taking a wire wheel to the axle. This will clean up any built up dirt or corrosion without damaging the axle.
@tarstarkusz It's a spare motor and doesn't belong to a machine. It needs two new springs and that is about 120GBP (150USD) where I am. I have another broken motor that belongs to a machine, so I will probably repair that one in preference.
Yes, Victor started fitting this motor in the VV-IX and other machines from 1917. My VV-IX has the earlier motor: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-zkIcBQd2roU.html Thanks 😀 👍
Oh well 😒. The dealer I bought it from was confident it would work, but as neither of us could test it, I did get the price down a fair bit. 😉. Some other good spares on it. Thanks 😀 👍
