How to Install a Lawn Edger Blade


Lawn edgers are used to remove grass, soil and other lawn debris growing over sidewalks, driveways and other pavement areas. Lawn edgers have a rapidly rotating blade that chops away at the grass to remove it. After many uses, the blade gradually becomes dull and needs to be replaced. The blade of a lawn edger is really easy to replace, and the typical homeowner can complete this task in no time at all.

Step 1

Turn off the lawn edger and disconnect the spark plug wire before proceeding with changing the edger blade.

Step 2

Position one adjustable wrench behind the blade on the hex bolt head and the other on the flange nut, which is on the front of the blade.

Step 3

Loosen the flange nut by turning the wrench counterclockwise while maintaining steady pressure on the wrench that's on the hex bolt head. Remove the flange nut.

Step 4

Remove and discard the old edger blade, but keep the flange nut. You will need to put it back on after the new blade is installed.

Step 5

Install the replacement blade, making sure it's installed in the same orientation as the old blade. Put the flange nut back on and tighten by turning the adjustable wrench clockwise. Remove both wrenches.

Step 6

Reconnect the spark plug wire. Your edger is now ready to edge again.

Tips and Warnings

  • Wear work gloves when handling the edger blade. It is extremely sharp and can cause severe cuts.

Things You'll Need

  • Two adjustable wrenches
  • Work gloves


  • Lawn Edger Operator's Manual
Keywords: install a lawn edger blade, flange nut, adjustable wrench, spark plug wire