Only happens to some and not others. How do I check for carbon. Like what is a sign of it discoloration maybe?If it only happens to some of your engines , there could be a problem with the motor shorting out due to excessive carbon buildup on the armature. This usually happens in older engines and the commutator can be cleaned with brake clean or similar degreasing solvent. If it happens to all your engines , then I would suspect the controller. The only sure way is to insert an amp meter in series with one of the controller lines and measure the current.
You have to get access to the motor and look at where the brushes contact the armature .It should be a copper color. If it is black, then you have a carbon buildup. This is usually caused by oil getting onto the brushes.Only happens to some and not others. How do I check for carbon. Like what is a sign of it discoloration maybe?
Gawd, that video is nauseating.
Anyway, check your wire connections to the track then check each track connection to each other. When you're tryin to draw current from the power pack to the motor and only a few strands of wire are actually making the connection or contacts between each track section is corroded or dirty, the power pack will heat up. Sorta like a light bulb. The thinner the element, the brighter the light to the point it will burn out.Best I could do
Why even suggest that to the guy? He sounds like he really has no experience what so ever in electrics.... If this were a DIY built powerpack (throttle) you could--theoretically--add a larger heatsink to the transistor, but do NOT try that here. That's a sealed case for a reason, and you should leave it that way. ...
Yes, CRC Electrical Parts Cleaner is safe for plastics. Do NOT use Brake Clean, or other cleaning solvents, unless they specifically say "safe for plastics". I have some brake cleaner at home that is definitely not safe for plastics (don't ask me how I know ).D&J (Ken) is probably right. Sounds like that loco needs some cleaning. A poor electrical connection will cause a motor to draw more power than it would otherwise need. I would start by giving it a bath in contact cleaner, like CRC Electrical Parts Cleaner. It's a sprasy that evaporates quickly and improves electrical "contact."
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