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Introduction

Replacing the cutting blade on a lawn mower is important to ensure that your grass is cut correctly and that your lawn mower is running efficiently. This is a simple fix that requires little to no expertise or previous experience. Just make sure to be careful when handling the blade itself and all should run smoothly.

  1. Disconnect the spark plug to ensure that the lawn mower does not accidentally turn over and cause the mower to turn on.
    • Disconnect the spark plug to ensure that the lawn mower does not accidentally turn over and cause the mower to turn on.

  2. Flip the mower onto its side exposing the blade and under carriage.
    • Flip the mower onto its side exposing the blade and under carriage.

  3. Place wood in between the blade and the wall of the mower to ensure that the blade does not move while you are tightening or loosening the bolt.
    • Place wood in between the blade and the wall of the mower to ensure that the blade does not move while you are tightening or loosening the bolt.

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  5. Using the 5/8 wrench, turn the blade counter clockwise until the bolt is loose then pull the blade off.
    • Using the 5/8 wrench, turn the blade counter clockwise until the bolt is loose then pull the blade off.

    • Make sure that safety gloves are worn at all times when handling the new or old cutting blade.

  6. Place the new blade in right side up into the bracket and line up the bolt.
    • Place the new blade in right side up into the bracket and line up the bolt.

    • Make sure that safety gloves are being worn at all times when handling either the new or old cutting blade.

  7. Using the 5/8 ratchet, turn the bolt clockwise until the bolt does not turn anymore.
    • Using the 5/8 ratchet, turn the bolt clockwise until the bolt does not turn anymore.

  8. Flip the mower right-side up and reconnect the spark plug.
    • Flip the mower right-side up and reconnect the spark plug.

Conclusion

This simple fix should help make the lawn mower function efficiently and safely for years to come.

One other person completed this guide.

Colter Batterton

Member since: 09/25/2018

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