symptom

motor 和轴转动,但刀片在垫圈上卡滞或滑动,正常支撑切割时发生。

motor和轴转动,但锯片在正常支撑切割时卡住或打滑。 1. 第一次打滑时松开扳机,等待锯片停止,拆下motor。

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