This is an interesting piece. The main purpose is to control the rotation of the mainshaft. It actuates two arms that look like a bicycle crank. There is also a contact system that seems to turn switches on and off. It is amazing how much of the composite is still there. Definitely a cool piece, especially if you need one.

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   I have been a buyer, trader and seller for many years. I work in the Bucks County Pennsylvania area. I have been selling on eBay for over 10 years and customer service is why I am successful. I answer questions within 24 hours, often sooner. Please feel free to contact me about something you may want to sell.
                  Thanks,   Doug