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Robomaid RM-770 Main Brush Kit


Main Brush Kit for Robomaid RM-770 Robot Vacuum Cleaner.


New Main Brush Motor
Main Brush
Main Brush Mount, with spring and 2 x screws


Limited Time Only!
Includes a Free Additional Main Brush with metal-reinforced end on the brush!


This kit requires opening the cleaner for installation.  Please see the video below for a guide.

Alternatively, check out a replacement main brush for the older main brush system.



See the video below on how to clean the new main brush system.

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Technical Specifications

Model: Robomaid RM-770 Robot Vacuum Cleaner Dimensions: Diameter: 35cm Height: 11cm Weight: 3.5kg Speed: 24cm/sec (fastest) 15 cm/sec (slowest speed) Battery: 14.4v 2200 mAh Lithium-ion Charging Time: 3 - 4hrs Operation Time: ~60 mins vacuuming plus docking Capacity of Dustbin: 1000CC Length of Main Brush: 25cm Noise Grade: ~70dB Input Rated Power: 24V ‰ÛÓ 1A 45W Made in China

Feature showcase

For a more in-depth look into the features of the Robomaid RM-770, check out the. Features Page

The Robomaid 3D model is loading above. Once loaded, you'll be able to use your mouse to rotate the Robomaid in any direction by clicking on it and moving your mouse. Hovering the cursor over different areas will highlight the feature.

Customer Reviews

Write your own product review

  1. Happy Jan!!

    Posted by Jan on 7th Oct 2014

    Thank you very much Customer Care for your professional attention to my complaint. I received the new main brush kit & installed it easily & can't believe the difference. My poor machine must have been very sick. I have renamed it from Heepasheet to Lucky - lucky to get a second chance.

  2. easy to fix at any age

    Posted by jeannie on 22nd May 2014

    i am 71 going on 72 and had no problems following the easy step video. putting in a new motor and main brush.

  3. DIY

    Posted by Erica on 3rd May 2014

    Easy to do yourself if you watch the tutorial; when I attempted to remove the cover the first time I couldn't find the 2 screws under the main brush.

    I did accidently remove some cords from their sockets that I wasn't supposed to; a guide to their respective placement would be helpful.

    New motor is so quiet! Very impressed, runs so smoothly. Worth the money to upgrade

  4. I loved this tutorial!

    Posted by Gail on 29th Mar 2014

    So easy to install new brush and motor with the tutorial!

  5. Easy to do

    Posted by Rae on 8th Feb 2014

    As a fix-it novice I was able to install the brush upgrade with a few watches of the movies. There were no problems and Ruby was off powering around better than ever!

  6. So Easy

    Posted by Cameron on 31st Dec 2013

    Great Video instruction. Very Easy to Follow.

  7. Very easy fix

    Posted by Kathryn on 5th Dec 2013

    Easy as to do this change over. Videos were great, no dramas and it works like a charm. I was going to get another vacuum cleaner because I had broken the brush mount but this was a cheap and easy fix. Thank you!