Robot Lawnmower

Yard Force range of Robot lawnmowers

The cutting blade noise on my Amiro 400i is too loud

Quick Answer

If your Amiro 400i robotic lawnmower has become noisier during operation, the most common cause is loose grub screws securing the blade adapter or a damaged cutting blade. Tightening the grub screws and inspecting the blades can often reduce the noise.

Tip: Always switch the mower off before carrying out any inspection or maintenance underneath the machine.

Before You Start

Before inspecting the cutting mechanism:

Switch the robotic lawnmower off
Remove the safety key (if applicable)
Place the mower upside down on a soft, stable surface with the blades facing upwards
Wear protective gloves when working near the cutting blades

Important: Never carry out maintenance while the mower is switched on or connected to its charging station.

How to Reduce Blade Noise

Follow these steps to check and tighten the blade assembly.

1. Remove the blade carrier

Using a suitable screwdriver:

Remove the three screws securing the blade carrier
Carefully lift the blade carrier away and place it to one side

This will expose the silver blade adapter underneath.

2. Tighten the grub screws

Rotate the silver blade adapter until you can see the grub screw(s).

Depending on your mower, there may be:

One grub screw
Two grub screws

Using a small flat-head screwdriver:

Tighten each grub screw securely
Do not overtighten

Loose grub screws can allow movement within the blade assembly, resulting in increased operating noise.

3. Refit the blade carrier

Once the grub screws have been tightened:

Reposition the blade carrier
Reinstall the three retaining screws
Ensure the blade carrier is securely fitted

The mower is now ready to be tested.

Inspect the Cutting Blades

While the blade carrier is removed, inspect the cutting blades for:

Damage
Chips
Cracks
Excessive wear
Bent blades

Damaged blades are one of the most common causes of increased cutting noise and should be replaced before using the mower again.

Tip: Replace all blades together to maintain balanced cutting performance.

If the Noise Continues

If the mower is still excessively noisy after tightening the grub screws and checking the blades:

Confirm the blade carrier is securely fitted
Check that all retaining screws are tightened correctly
Inspect the underside of the mower for loose components

If the problem persists, please contact our customer service team via Live Chat or submit a support ticket for further assistance.

Important Maintenance Tips

Check the blade screws regularly during the mowing season
Inspect the blades for wear or damage after striking hard objects
Keep the underside of the mower clean and free from grass build-up
Replace worn blades promptly to maintain cutting performance
Always use suitable tools when carrying out maintenance

Frequently Asked Questions

Why has my Amiro 400i become louder?

The most common causes are loose grub screws in the blade adapter or worn or damaged cutting blades.

How many screws hold the blade carrier in place?

The blade carrier is secured with three screws.

What are grub screws?

Grub screws secure the blade adapter to the motor shaft. If they become loose, they can cause additional vibration and noise.

Should I check the blades while the carrier is removed?

Yes. Inspect the blades for damage or excessive wear and replace them if necessary.

What should I do if tightening the grub screws doesn't reduce the noise?

If the noise persists after completing these checks, please contact our customer service team via Live Chat or submit a support ticket for further assistance.

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Cloudhawk App Registration and Operation

Quick Answer

The Cloudhawk app allows you to connect, monitor and control your compatible Yard Force robot lawnmower from your smartphone. Simply download the app, create an account, pair your mower using its serial number, and set your mowing schedule.

Before You Begin

Before setting up the Cloudhawk app, ensure you have:

A compatible Yard Force robot lawnmower.
A smartphone with Bluetooth enabled.
Location Services enabled on your phone.
An internet connection.
The mower's serial number (located on the sticker at the rear of the mower above the QR code).
Access to the email account you will use to register.

Tip: You can enter the serial number manually or scan the QR code using your phone's camera.

Please find a video walk through:

Steps

1. Download the Cloudhawk App

Download the Cloudhawk app from your device's app store.
Open the app.
Read and accept the Terms and Conditions.
Tap Get Started.

2. Create Your Account

Tap Register.
Enter your email address.
Tap Send Code.
Enter the verification code sent to your email.
Create and confirm your password.
Tap Next.

3. Verify Your Email

Open the verification email.
Select the verification link to activate your account.
If you cannot find the email, check your Spam or Junk folder.
Select your country.
Enter your preferred username.

4. Allow App Permissions

To communicate with your mower, the app requires several permissions.

Allow the app to find and connect to nearby devices.
Allow Bluetooth access.
Allow Location Services.
Allow Camera access if you wish to scan the QR code.

Once permissions are granted, the app will confirm it is ready to connect.

5. Add Your Robot Lawnmower

Tap the + icon.
Select Bluetooth.
Enter the mower's serial number or tap the QR code icon to scan it.
Ensure Bluetooth and Location Services are switched on.
Tap Continue.
Turn the mower on using the key located at the rear of the machine.
Tap Search.
Select your mower when it appears.
Wait for the confirmation message.

Your mower will now appear under My Devices.

A green indicator confirms the mower is online and ready to use.

6. Create a Mowing Schedule

Tap your mower from the My Devices list.
Confirm the app shows Connected in the top-right corner.
Select Modify Schedule.
Tap + to add a mowing session.
Select a start time.
Select an end time.
Repeat for each day of the week.

You can schedule up to two mowing sessions per day.

Tap Save Schedule when finished.

7. Control Your Mower

Return to the home screen using the back arrow.

The control buttons at the bottom of the screen allow you to:

Start mowing immediately.
Stop mowing.
Access your mower while it is connected.

Frequently Asked Questions

Why won't my mower connect?

Check that:

Bluetooth is enabled.
Location Services are enabled.
The mower is switched on.
You are close to the mower.
The correct serial number has been entered.

Where can I find the serial number?

The serial number is located on the sticker at the rear of the mower above the QR code. You can also scan the QR code directly from within the Cloudhawk app.

Why do I need to enable Location Services?

Location permission is required by your phone's operating system for Bluetooth device discovery. The app uses this permission to locate and connect to your mower.

How many mowing schedules can I create?

You can programme up to two mowing sessions per day, allowing different mowing times throughout the week.

How do I know the mower is connected?

When the mower is connected:

Connected is displayed in the top-right corner of the app.
A green indicator is shown next to the mower in the My Devices list.

Can I control the mower manually?

Yes. Once connected, you can use the control buttons at the bottom of the app to start or stop mowing immediately.

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MB400 CloudHawk App Operation

Quick Answer

The CloudHawk app allows you to connect your MB400 robot lawnmower to your smartphone using Bluetooth. Once connected, you can create mowing schedules, start or stop the mower remotely, and monitor its status directly from the app.

Before You Begin

Before setting up your MB400 with the CloudHawk app, make sure you have:

An MB400 robot lawnmower.
A smartphone with Bluetooth enabled.
Location Services enabled on your phone.
An internet connection.
The CloudHawk app installed.
The mower's serial number, located on the sticker at the rear of the mower above the QR code.
Access to the email address you will use to register.

Tip: You can enter the serial number manually or scan the QR code using your phone's camera.

Please find a video walk through:

Steps

1. Download the CloudHawk App

Download the CloudHawk app from your device's app store.
Open the app.
Read and accept the Terms and Conditions.
Tap Get Started.

2. Create a CloudHawk Account

Tap Register.
Enter your email address.
Tap Send Code.
Enter the verification code sent to your email.
Create and confirm your password.
Tap Next.

3. Verify Your Email Address

Open the verification email.
Select the verification link to activate your account.
If you cannot find the email, check your Spam or Junk folder.
Select your country.
Enter a username.

4. Allow App Permissions

The CloudHawk app requires several permissions to communicate with your mower.

Allow the app to find and connect to nearby Bluetooth devices.
Allow Location Services when prompted.
Allow camera access if you want to scan the mower's QR code.

Once all permissions have been granted, the app is ready to connect to your MB400.

5. Add Your MB400 Robot Lawnmower

Tap the + icon.
Select Bluetooth.
Enter the mower's serial number or tap the QR code icon to scan it.
Ensure Bluetooth and Location Services are enabled on your phone.
Tap Continue.
Turn on the mower using the key on the rear of the machine.
Tap Search.
Select your MB400 when it appears.
Wait for the pairing confirmation.

Once connected:

Your mower will appear under My Devices.
A green indicator confirms the mower is online.
Tap the mower image to open the control screen.

6. Create a Mowing Schedule

Confirm the app displays Connected in the top-right corner.
Select Modify Schedule.
Tap + to add a mowing session.
Choose a start time.
Choose an end time.
Repeat for each day you want the mower to operate.

You can create up to two mowing sessions per day.

Tap Save Schedule.
Tap the Back arrow to return to the home screen.

7. Operate the MB400

The control buttons at the bottom of the app allow you to:

Start mowing immediately.
Stop mowing.
Monitor the mower's connection and operating status.

Frequently Asked Questions

Why won't my MB400 connect to the CloudHawk app?

Check that:

Bluetooth is enabled.
Location Services are enabled.
The mower is switched on.
You are within Bluetooth range of the mower.
The correct serial number has been entered.

Where can I find the MB400 serial number?

The serial number is located on the sticker at the rear of the mower above the QR code. You can also scan the QR code directly within the CloudHawk app.

Why does the app require Location Services?

Most smartphones require Location Services to be enabled before Bluetooth devices can be discovered. The CloudHawk app uses this permission only to locate and connect to your mower.

How many mowing schedules can I create?

The MB400 supports up to two mowing sessions per day, allowing you to customise a weekly mowing schedule.

How do I know my mower is connected?

A successful connection is indicated by:

Connected displayed in the top-right corner of the app.
A green indicator next to your mower in the My Devices list.

Can I control the MB400 without creating a schedule?

Yes. Once connected, you can use the control buttons on the home screen to start or stop mowing immediately without using a schedule.

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