How to Change Blades on a Craftsman Riding Lawn Mower?

The crisp scent of freshly cut grass, the gentle hum of your Craftsman riding mower, and the satisfaction of a perfectly manicured lawn – these are the hallmarks of a beautiful summer. But what happens when those sharp blades start to dull, leaving behind ragged edges and an uneven cut? Don’t despair! Replacing your mower blades is a simple task that can be done with a few basic tools and a little patience. In this comprehensive guide, we’ll walk you through the entire process, step-by-step, ensuring you can restore your Craftsman mower to its cutting edge glory. From identifying the right blades to safely removing and installing them, we’ve got you covered. So, grab your gloves and let’s get started!

A Quick Overview

Changing blades on a Craftsman riding mower is a straightforward process. You’ll need a few basic tools, a bit of caution, and the right blades for your model. This article will cover:

  • Identifying the Right Blades
  • Preparing Your Craftsman Mower
  • Removing the Old Blades
  • Installing the New Blades
  • Safety Precautions
  • Maintenance Tips

Identifying the Right Blades

The first step to changing your blades is ensuring you have the right ones. Different Craftsman riding mower models use different blade sizes and configurations. To find the correct blades for your mower, you can:

  • Check your owner’s manual: The owner’s manual will specify the exact blade size and type required for your model.
  • Look for a sticker on your mower deck: There’s often a sticker on the underside of the mower deck with the blade size and other relevant information.
  • Consult the Craftsman website: You can search for your Craftsman mower model number on the Craftsman website to access the online manual or a parts diagram.
  • Visit your local Craftsman dealer: They can help you find the correct blades for your specific model.

Tip: When purchasing new blades, consider purchasing a set of two. This allows you to easily swap them out as needed and ensure consistent performance.

Preparing Your Craftsman Mower

Before you begin, it’s important to prepare your mower for the blade change. Here’s what you need to do:

1. Disengage the Blades

  • Turn off the engine: Make sure the engine is completely off and the ignition key is removed.
  • Disconnect the spark plug wire: For added safety, disconnect the spark plug wire to prevent accidental starting.
  • Engage the parking brake: This will prevent the mower from rolling while you’re working.

2. Raise the Mower Deck

  • Locate the deck height adjustment lever: This is typically located on the side of the mower deck.
  • Raise the deck to the highest setting: This will provide enough clearance for you to work comfortably.

3. Remove the Mower Deck

  • Locate the deck support bolts: These are usually located on the underside of the deck.
  • Remove the bolts: You will likely need a socket wrench and extension to reach these bolts.
  • Lower the deck: Slowly lower the mower deck to the ground.

Removing the Old Blades

Now it’s time to remove the old blades. Be cautious while handling the blades, as they can be sharp.

1. Locate the Blade Bolt

  • Identify the blade bolt: This is the large bolt holding the blade to the spindle.
  • Use a socket wrench: The size of the socket will depend on your mower model.
  • Remove the bolt: Turn the bolt counterclockwise to loosen it. You may need to use a breaker bar for stubborn bolts.

2. Remove the Blade

  • Hold the blade: Use a gloved hand to hold the blade securely while you loosen the bolt.
  • Pull off the blade: Once the bolt is completely removed, gently pull the blade off the spindle.

Tip: If the blade is stuck, use a rubber mallet to lightly tap the back of the blade to loosen it.

Installing the New Blades

Now that the old blades are removed, it’s time to install the new ones.

1. Align the Blade

  • Position the blade: Align the blade so that the blade holes line up with the spindle holes.
  • Secure the blade: Use your socket wrench to tighten the bolt clockwise.

2. Tighten the Blade Bolt

  • Tighten the bolt securely: Ensure the bolt is tightly fastened to prevent the blade from loosening during operation.
  • Use a torque wrench: If available, use a torque wrench to tighten the bolt to the manufacturer’s specifications.

3. Check for Proper Rotation

  • Spin the blade: Manually spin the blade to ensure it’s rotating smoothly.
  • Ensure proper direction: The blade should spin in the direction indicated by the arrow stamped on it.

Re-attaching the Mower Deck

Once the new blades are installed, it’s time to reattach the mower deck.

1. Align the Deck

  • Position the deck: Align the deck with the mower frame and ensure it’s properly seated.
  • Secure the bolts: Use your socket wrench to tighten the deck support bolts.

2. Lower the Deck

  • Lower the deck: Slowly lower the deck to the desired height setting.
  • Engage the blades: Make sure the blades are engaged and properly rotating.

Safety Precautions

Remember that safety is paramount when working on any lawn mower. Here are some crucial safety precautions to keep in mind:

  • Wear protective gear: Always wear gloves, safety glasses, and sturdy shoes while working on your mower.
  • Disconnect the spark plug wire: Ensure the engine is off and the spark plug wire is disconnected before working on any component.
  • Use the proper tools: Always use the right tools for the job, and be careful when handling sharp blades.
  • Keep children and pets away: Never allow children or pets near the mower while working on it.

Maintenance Tips

To ensure your Craftsman riding mower continues to perform at its best, here are some maintenance tips:

  • Regularly inspect your blades: Check your blades for wear and tear regularly. Replace them if they are damaged, chipped, or dull.
  • Sharpen your blades: Sharpening your blades can extend their lifespan and improve your mower’s performance.
  • Clean your mower deck: Remove grass clippings and debris from the underside of the mower deck regularly.
  • Change the oil and filter: Follow the manufacturer’s recommendations for oil and filter changes.

Conclusion

Changing blades on a Craftsman riding mower is a simple process that can significantly improve your lawn’s appearance and your mower’s performance. By following these steps and prioritizing safety, you can confidently replace your mower blades and enjoy a beautifully manicured lawn for years to come. Remember, regular blade maintenance is key to achieving a clean, crisp cut and extending the life of your mower.

FAQ

Q1: What type of tools will I need to change the blades on my Craftsman riding lawnmower?

You’ll need a few basic tools to safely and effectively change the blades on your Craftsman riding mower. These include a socket wrench that fits the blade bolt size (typically 19mm or 21mm), a torque wrench (optional but recommended for proper tightening), gloves, safety glasses, and a shop towel or rag. Having a jack or lift to raise the mower deck will make the process easier and safer.

Q2: How often should I replace the blades on my Craftsman riding mower?

It’s a good idea to inspect your blades after every 25 hours of use, or at least once per season. If you notice any significant damage, such as nicks, bends, or excessive wear, it’s time for a replacement. A sharp blade provides a clean cut and promotes healthy lawn growth. Dull blades can tear and damage the grass, leading to an uneven and unsightly lawn.

Q3: How do I know which blades I need for my Craftsman riding mower?

The best way to ensure you get the correct blades is to check the owner’s manual for your specific Craftsman riding mower model. This will provide the correct blade specifications, including the size, type, and any other relevant details. You can also find replacement blades at your local hardware store or online retailers.

Q4: What is the safest way to remove the old blades from my Craftsman riding mower?

Safety should be your top priority when working on any power equipment. Before attempting to remove the blades, always disconnect the spark plug wire to prevent accidental starting. Always wear safety glasses and gloves to protect yourself from sharp blades and flying debris.

Q5: What is the proper way to install new blades on my Craftsman riding mower?

The new blades should be installed with the cutting edge facing the rear of the mower, meaning the curved side should be facing upwards. This ensures proper cutting action and prevents the blades from throwing debris towards the operator. Once the blades are in place, use the socket wrench to tighten the bolts.

Q6: What torque setting should I use when tightening the blade bolts?

The recommended torque setting for your Craftsman riding mower blade bolts can be found in your owner’s manual. If you don’t have the manual, it’s best to consult with your local dealer or a trusted mechanic to determine the appropriate torque setting. Using a torque wrench ensures proper tightening and prevents damage to the spindle or blade.

Q7: What should I do with the old blades after I remove them?

It’s crucial to dispose of the old blades responsibly to avoid potential accidents or injuries. Never throw them in the regular trash or leave them lying around where children or pets could access them. Instead, take them to a local recycling center or metal scrap yard for proper disposal.

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