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Posted - February 01 2016 : 2:03:32 PM
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I have collected many older Mantua locomotives. They have the original motors but I have replaced the magnets with rare earth magnets. This gives them an amp draw and stall of less than that of the newer Blue Box locomotives that I have been converting.
I now want to convert these to DCC. Has anyone done this prior to me with any advice? I know that I have to find a way to isolate the motor from the frame, thinking tape and a plastic screw. Have to look to see if there is also a way to isolate the brush or not.
Any other advice? I did one of the later ones that had a can motor but that was a no brainier since there was noting to isolate.
If this goes well I have a fleet to convert
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Posted - February 01 2016 : 4:09:40 PM
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To isolate the motor all you have to do is add a piece of wire insulation to the spring that pushes against the brush that is grounded to the frame of the motor (Typically engineer's side). The other spring/brush connection is already insulated/isolated.
No need to remove the motor. Even tape would not work as you would still ground out from the screw anyway.
Sean
"If everything seems under control, you're not going fast enough!" - Mario Andretti!
Edited by - Mustangs_n_Trains on February 01 2016 4:10:40 PM
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Posted - February 02 2016 : 09:20:04 AM
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Thanks, that is good news that the spring can be isolated. I was thinking I would have to use tape and a plastic screw. My worry there was how the mesh would then align. Currently it is just right.
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