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Fix it: Topper blades... When to sharpen and when to replace them

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Position: Line up the new blades as they were lined up before and reinstall the mounting gear.

Position: Line up the new blades as they were lined up before and reinstall the mounting gear.

Position: Line up the new blades as they were lined up before and reinstall the mounting gear.

While many toppers use flails or discs, there are still a few models knocking around where blades are tasked with the cutting. As you can see from the pictures, this is a small topper that features three blades working across a cutting width of six feet.

The key things to watch out for when blades start to get dull and lose their cutting edge is that the grass will start to look 'torn' rather than cut cleanly. This has a couple of implications, the most important of which is that regrowth of the grass can be slower.

When you think about it, one of the main roles of topping is to encourage good quality grass regrowth, so this is a major reason to keep on top of dull blades. The other reason to keep blades sharpened is they will use less power (and therefore diesel) when they are properly edged or replaced.