How do I know when to sharpen the blades of my lawn mower?

"Sharp blades cleanly cut the grass. Dull blades roughly tears the grass which will quikly turn brown. If the lawn mower produces teared grass, then the blades should be sharpened or replaced."

This was helpful (2601)

恵　将髙 29-10-2023
ナショナル EY２２６２
Please tell me when to replace the mower blade and when to sharpen the mower blade. Please tell me how to sharpen it.

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Joëlle WILLEFERT 28-03-2025
Bosch rotak 32
Hello, I just replaced the blade with a new and I always have the same problem. The mower turns normally but does not cut the grass. Thank you for your answer (Bosch 32)

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jos mens 17-09-2024
STIHL RT 5097
when should I sharpen my knives

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jos mens 17-09-2024
STIHL RT 5097
WHEN SHOULD I SHARPEN KNIVES?

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Richard Vajdík 20-05-2026
Hecht 5161
What is the procedure for changing knives? can the mower be turned on its side?

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Ivan Ruský 02-06-2026
Gardenius GB1R94-41
I can't get new knives. Can anyone help?

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Wauters marc 05-03-2026
Central park DG350
Lawn mower starts but stops after 2 seconds, when I press the fuel pump it starts but stops again after 2 seconds, thanks in advance

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Richard Vajdík 20-05-2026
Hecht 5161
What is the procedure for changing knives? can the mower be turned on its side?

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Peter Morris 15-08-2025
Roberine 900
The back lapping switch isn’t working any idea what could be the problem?

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jos mens 17-09-2024
STIHL RT 5097
when should I sharpen knives?

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Pattfinder 06-06-2026
Pattfinder
t

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Ivan Ruský 02-06-2026
Gardenius GB1R94-41
I can't get new knives. Can anyone help?

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jos mens 17-09-2024
STIHL RT 5097
WHEN DO I CALL KNIVES SHARPENING

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