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How to tell if a mower pulley is failing?


Noticed some unusual noise and vibration coming from the deck area lately. The belt seems fine, but something feels off when engaging the blades. Could be a pulley issue, but I'm not sure how to confirm it without taking things apart. What are the common signs that a pulley is worn out? I've heard that grinding sounds or wobbling are obvious clues, but I'm not sure if that's always the case. Also wondering if it's better to replace just the faulty pulley or the whole assembly. Curious how others have handled this.

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Marcus Rull
Marcus Rull
10. Aug.



Noticed some unusual noise and vibration coming from the deck area lately. The belt seems fine, but something feels off when engaging the blades. Could be a pulley issue, but I'm not sure how to confirm it without taking things apart. I've heard that grinding sounds or wobbling are obvious clues, but I'm not sure if that's always the case. Also wondering if it's better to replace just the faulty pulley or the whole assembly. For anyone who's dealt with this before, it might be helpful to check out options for replacement parts at https://udcparts.com/collections/mower-pulleys which offers a range of pulleys and idlers for different models. Curious how others have handled this and whether they noticed a big difference after replacing the pulley. I'd appreciate any practical advice on diagnosing pulley wear before taking everything apart.

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