Question about Craftsman Convertible 25cc. Gas Line Trimmer

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Motor works fine, but trimmer will not rotate

I have a craftsman line trimmer with interchangable head. motor works fine, but trimmer will not rotate

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Have an assistant start and hold the trimmer. At idle, there should still be a little drag on the clutches to make the shaft spin on that split shaft trimmer with the accessory head removed. No need to rev it or do anything fancy, but teamwork will make it safer.

Now forget about the engine and clutches - does the accessory head spin freely when turned by hand (removed from engine still!) and with a clear rotation of the shaft end visible inside the connector socket? Is the shaft end square with sharply defines angles, or rounded off? Does swapping in a different accessory function normally and as expected?

Sometimes the nub end of the shaft wears. Worse, the socket on the engine side has eaten itself to pieces. Worse, worse yet, clutches in the engine side that engage the accessory shaft are worn and there is simply no transmission of power. Good luck, hopefully this info will set your boots in the right direction!

Posted on May 09, 2010

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