Bread paddle isn't "strong" enough to knead
Hi bex_ta,
If the paddle doesn't have the power to knead, you're probably losing torque at one or more of several points:
1) Where the paddle attaches to the shaft (is there evidence of slippage/wear in the paddle socket?),
2) Where the shaft goes through the pan (possible friction point - presumably this is what you oiled)
3) The belt might be slipping, either due to friction in the shaft, or because the belt is worn and loose.
You need to determine if the shaft is sticking, and if it's because it's bent (fairly unlikely) or if there's something fouling it. You'll need to isolate and fix that first. If you can rotate the shaft freely, then we look at (1) and (3) above - these are simple parts replacements, but the shaft would be more involved.
Belts are getting tough to find - if you can provide specs/measurements, I'm going to start contacting a small-run manufacturer to see about making some new belts, as I'm seeing multiple online requests for belt parts. If you happen to have a broken one, I'd like to get one as a sample to send to a manufacturer.
If I can be of further assistance, or if you have questions about any of my response(s), please let me know before rating me.
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Thanks for using Fixya.com,
Jon