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Husqvarna Repairs - Part 2 / Kohler Flywheel Repair - Loose Magnets

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This is part 2 of the Husqvarna repair series. Repair of damaged flywheel by bonding the loose stator magnets back on.
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Опубликовано:

22 авг 2024

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Комментарии : 6

@bauertron 9 месяцев назад

I do the same some years ago, but i buy new magnets in eBay. I use wood sticks to separe the magnets. Newer use heat with ceramic magnets!!

@charlieromeo7663 9 месяцев назад

Please consider obtaining M&P Engineering approval for such rework.😊 It’s quite obvious the flywheel manufacturer needs some M&P Engineering assistance to eliminate their obvious bond process shortcomings. How much clearance is there between the magnets and the fixed pickup? Maybe it’s adjustable so adhesive thickness, if too thick, won’t be an issue. I would have liked to see the adhesive squeeze out removed to form a nice fillet on the accessible edges of the magnets. Just curious, where was the residual adhesive when you pulled it apart? Was it on the magnets, the flywheel, or both?

@digitaloverdrivesystems 8 месяцев назад

There was a lot of particle debris under the flywheel and my assumption is that much of it was the old epoxy that got ground up by the magnets rotating around. The remainder was sanded off the inside of the flywheel using a drum sander on the drill press. Almost no residual epoxy was found on the magnets but they were scraped with a razor to remove any specs that remained. There is no adjustment on the stator windings so there indeed could have been a clearance problem if the applied epoxy were too thick. The epoxy did squeeze out uniformly when the clamps were applied but I had no real way to control squeeze out. It was fully dependent upon the viscosity and clamping force so it was a slight gamble on my part. The finished product turned out satisfactorily and is now fully functional, generating power to charge the battery. I have a follow up video that shows an easy way to install an inexpensive voltmeter on the tractor to monitor the battery and charging system in the future. Thanks for watching my videos and if I helped you in any way, please feel free to drop me a note, like, subscribe or even buy me a beer! More information, challenges, tips and repair videos are coming. Cheers....