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How To change the Blade on a Ryobi ONE+ Mitre saw

19/02/2026, 19:07
How to Change a Blade on a Mitre Saw 

Safety First 

1. Disconnect the power source

  • For corded saws: unplug from the mains.
  • For cordless saws: remove the battery pack. 

    This prevents accidental activation. 

2. Wear eye protection and gloves

  • Heavy-duty, non-slip gloves are recommended because the blade is extremely sharp. 

Step-by-Step Instructions

1. Loosen the blade bolt cover screw

  • Loosen (but do not remove) the screw on the blade bolt cover so you can access the blade bolt.


2. Move the lower blade guard out of the way

  • Swing the guard upward and hold it clear of the blade area.
  • Keep fingers away from the blade at all times. 


3. Engage the spindle lock

  • Press and hold the spindle lock button to stop the spindle from turning. 


4. Loosen the blade bolt

  • Use the Allen key supplied with the saw to turn the blade bolt clockwise while holding the spindle lock.
  • Remove the outer flange.


5. Remove the old blade

  • Carefully slide the blade off the spindle.
  • Note: The inner flange must remain on the spindle.


6. Fit the new blade

  • Ensure the rotation direction on the blade matches the arrow on the blade guard.
  • Place the blade onto the spindle against the inner flange.


7. Replace the outer flange and tighten the bolt 

  • Position the outer flange with its flat side facing the blade.
  • Tighten the blade bolt anti-clockwise using the Allen key while holding the spindle lock.


8. Lower the blade guard and secure the cover

  • Ensure the guard moves freely and automatically covers the blade.
  • Tighten the blade bolt cover screw. 


Final Checks

  • Confirm the blade is secure and spins freely without wobble.
  • Reconnect the power only when you are ready to cut.

 

 

Circ saw steps


 

Circ saw steps


 

Circ saw steps


 

Circ saw steps


 

 

Applicable Models

RMS254DB, RMS254DB-K, RMS305DB, R18MS254X