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Deck Arbor

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The pulley comes off the top. There are many parts. Open it up and see what needs replacing. Bearings for sure and it looks the the top of the shaft is shot Where the pulley sits. Sometimes new whole arbor assemblies are available on eBay. Here's the repair instructions:





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Did you see the set screw in the bottom of the pulley groove? They get filled with crud and are hard to see. Remove the set screw and drive or press the shaft out of the pulley. I slide a couple of flat steel pieces under the pulley and press it off. I have had to heat the pulley hub to both loosen the set screw and remove the pulley from the shaft. Not a fun job.

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