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Chopper 1 spring repair notes

chopper 1 spring repair instructions

The local hardware store had a spring that was close to the original Chopper 1 spring for 30 cents.

A short stub of 12 gauge wire seems to be enough to anchor the spring once I glued it in place with a product called Liquid Welder.

I'll let it dry overnight and then give it a test drive to see if this repair can hold up under heavy chopping.

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Mark, for future reference, if you want to glue metal (I'm guessing cast iron from the look on the pictures?) de-grease it first with e.g. acetone, roughen it up and remove corrosion with some sandpaper and de-grease again. Then glue it.

BTW, if the 12-gauge wire isn't stiff enough to resist the bending forces applied by the spring, there is no way that glue is going to restrain it.

If you just want to keep the wire from falling out, a small drop of superglue (cyanoacrylate) would probably suffice.

Comment by Roland_Smith Tue Dec 28 17:34:00 2010
If we're lucky, Mark's fix will last a good long time, but if not, we'll definitely follow your advice for the next repair job.
Comment by anna Wed Dec 29 09:16:58 2010

Thanks for the feedback Rolland.

This spring just barely puts any force on the 12 gauge stub and is mainly used to return the iron finger back to the original position.

I agree that extra prep work on a surface is critical if you want a good bond, but this only needed to hold the pin in place and the surface was mostly clean.

Comment by mark Wed Dec 29 16:49:49 2010

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