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Automower blades — how often to replace and what dull blades do

Automower pivot blades are small, cheap, and do their job well — for a while. Husqvarna's guidance lands around every 1–3 months of cutting depending on lawn size, grass type, and whether the blades meet anything harder than grass.

Signs your blades are done

• Grass tips look torn and whitish/brown a day or two after mowing instead of cleanly cut.
• The lawn develops a dull, frayed look though the mower runs constantly.
• The cutting motor works harder (on models that report it, cutting time per area rises).

The job

1. Power the mower off. Gloves on.
2. Turn it over; each blade is held by a single screw on the pivot disc.
3. Fit new blades with new screws — the screws are part of the retention design; never reuse the old ones.
4. Check the blades pivot freely after fitting.

The API exposes a blade-usage counter; a tracked history shows exactly how many cutting hours each set actually lasted on your lawn — more useful than any generic interval.