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Old 04-24-2013, 04:31 PM   #292 (permalink)
skinney2
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Join Date: Sep 2010
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My MCPx with a brushed motor suddenly started spinning. I first suspected a bad tail motor, but that (a new one) is working fine. When I hold the MCPx and spool it up, it works fine for a while, but then the frequency of the sound of the main motor drops and the tail jerks back and forth. I probably have more than 100 flights on this main motor. Is this problem likely caused by worn out brushes? Is it difficult to replace the main motor?
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