How to Change the Blades on a Kubota ZD323

A well-manicured lawn has both aesthetic and practical benefits. In addition to looking nice, it helps keep down insect populations and prevents weeds from overtaking your property. The Kubota ZD323 is a ride-on, diesel-powered mower. It has 23 horsepower and is characterized by its "zero-turn" capability, giving it extra turning capacity in tight spaces. Mower blades, like all blades, dull over time, warranting replacement.

Things You'll Need

  • Cloth
  • 1/2-inch hexagonal socket wrench

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Engage the parking brake and disconnect the battery to ensure the mower's motor doesn't somehow accidentally engage.

Place a cloth around the blade to protect yourself from accidental injury.

Use a 1/2-inch hexagonal socket wrench to unscrew the bolt anchoring the blade. Carefully remove the old blade.

Position the new blade with the curled part of the blade facing upward and the sharper cutting edge facing downward.

Align the star with the mandril. The mandril is a small, multi-sided metallic object under the mower deck that attaches to the blade.

Use the socket wrench to tighten the bolt.

Reconnect the battery.

Tips & Warnings

  • Wear safety gloves for maximum protection, in addition to placing the cloth around the blade.


  • "Operator's Manual: Kubota Zero Turn Mower"; Kubota Tractor Corporation; 2003
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