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94 Posts
A day or so back i was running my Prairie around my "Layout" Its speed suddenly cut by about 50% and it started smoking. The armature of the motor got incredibly warm, and watching it running with the body off also displayed some pretty and rather large white sparks as opposed to the smaller blue ones. After it cooled it ran without the problem (Just a horrible smell). After leaving it for the night in its box/siding it does the same
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Could it be a drop of oil on the commutator?. I currently have it apart on my desk and there appears no way so see easily into there. I dare not even think about somehow cramming a cotton bud soaked in meths either.

Could it be a drop of oil on the commutator?. I currently have it apart on my desk and there appears no way so see easily into there. I dare not even think about somehow cramming a cotton bud soaked in meths either.