Subject:
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Re: Disassembly of 12V switching motor brick
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Newsgroups:
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lugnet.trains
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Date:
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Wed, 22 Mar 2000 19:48:46 GMT
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Viewed:
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1361 times
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In lugnet.trains, Christopher Callahan writes:
> Has anyone ever tried to disassemble a 12V switching motor brick? I recently
> acquired one in an auction that fails to work properly. I can hear it make
> electric sounding noises but it never flips the switch (although manually the
> switch flips with ease). I was hoping to open this guy up and remedy its
> ailments.
>
> -Chris
Hi,
If you mean the 'large' gray brick used to switch the remote points from the
12V era, well, i did open one past year.
I don't have it anymore, Reinhard 'Ben' Benneke has it now (the one from the
ABS ... site)
It's not easy to open them, because the top is glued on the bottom part, and
therefore allmost impossible to open it without damaging it.
Inside you will find 2 pieces :
1 coil
'switch' using 2 permanent magnets posisioned at 90° and placed in opposite
direction.
I measured once the current flow and this is aprox. 200mA by 12V DC.
If you messure the current and this is far above the 200mA without switching,
then i supose that the coil is burned through. In this case you have to open
it and rewind it with the same number of turns and the same diameter of wire.
You can find this kind of wire in any good electronics hobby shop.
Don't use blank wire !! It have to be isolated wire. The one you need is
isolated with a thin laque layer.
Hope you can use this information.
Good luck.
Regards,
Ludo
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Message has 1 Reply:
 | | Re: Disassembly of 12V switching motor brick
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| (...) Yes I have this one, but since it worked again, I never opened it again. I was in fear I might damage it by open the housing again.... Now it is at my parents home (not enough room here), and I have no chance to get it during the next 2 (...) (25 years ago, 22-Mar-00, to lugnet.trains)
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Message is in Reply To:
| | Disassembly of 12V switching motor brick
|
| Has anyone ever tried to disassemble a 12V switching motor brick? I recently acquired one in an auction that fails to work properly. I can hear it make electric sounding noises but it never flips the switch (although manually the switch flips with (...) (25 years ago, 21-Mar-00, to lugnet.trains)
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