Adjusting the cutting height on Automower® Aspire™ R4

Automower® Aspire™ R4 offers three cutting height levels - low, medium and high - which you can set by repositioning the blade disc screws. Follow the step-by-step guide below to adjust the height to your preference.

Available cutting heights

You can select between 3 different cutting height steps. The blade disc has a mark for each step.

• Step 1 is the lowest height: 20 mm (1-3/16 in.)
• Step 2 is the middle height: 35 mm (1-3/8 in.)
• Step 3 is the highest height: 45 mm (1-3/4 in.)

The factory setting is set to 3.

Step-by-step: How to change the cutting height

Important: Always turn off the mower and wear protective gloves before performing maintenance.

1. Power off the mower

• Turn off the mower: Push the ON/OFF button for 3 seconds.
• Ensure the LED indicator on the ON/OFF button is off.

2. Remove the top cover

• Lift the front of the top cover and carefully remove it.

3. Locate and remove the torx key

• Find the torx key stored on the mower body and remove it.

4. Flip the mower

• Turn the mower upside down to access the underside.
• Wear protective gloves before proceeding.

5. Remove the blade disc

• Use the torx key to remove the two blade disc screws.
• Remove the blade disc.

6. Reposition the blade disc for desired height

• Select a cutting height (1–3).
• Align the blade disc holes with the matching holes on the shaft.

7. Reattach the blade disc

• Insert and tighten the two blade disc screws using the torx key.
• Make sure the blade disc is securely in place.

8. Reinstall the torx key

• Place the torx key back into its holder on the mower.

9. Attach the top cover

• Attach the top cover back to the mower.

Tip: The first weeks after a new installation, set the cutting height to 3 to prevent damage to the loop wire. You can then lower the cutting height each week.