since 1940

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Excessive motor brush arching

1. Brushes have excessive side play.
2. Dirty or rough commutator.
3. Armature not concentric.

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Disclaimer: sacskyranch.com contains abundant information relating to aircraft maintenance. The information provided is not intended to supercede or supplement the F.A.A. approved maintenance and/or operator’s manuals. Those F.A.A. approved manuals must be utilized when performing maintenance and/or operating aircraft.