1. Introduction
This manual provides essential information for the roborock QV 35S Rubber Main Brush Cover Replacement. It covers product features, compatibility, installation guidelines, maintenance procedures, and specifications to ensure optimal performance and longevity of your robot vacuum's cleaning system.
2. Product Overview and Features
The roborock QV 35S Rubber Main Brush Cover is designed to enhance the cleaning efficiency and reduce maintenance for your compatible roborock robot vacuum. It incorporates advanced features to prevent hair tangles and protect your floors.
2.1 Compatibility
This replacement main brush cover is compatible with the following roborock robot vacuum cleaner models:
- roborock Q Revo
- roborock Qrevo MaxV
- roborock Qrevo S
- roborock Qrevo Pro QV 35A
2.2 Dual Anti-Tangle System
The brush cover works in conjunction with the robot vacuum's main brush and side brush to minimize hair tangles. It features a rubberized floating main brush and a unique arc-shaped side brush. The side brush is SGS-certified for a 0% hair tangling rate, while the main brush design effectively prevents hair and debris from wrapping, making it suitable for households with pets.

Figure 1: Illustration of the Dual Anti-Tangle System components.
2.3 Protective Design
The main brush cover incorporates a rubber seal that creates a tight connection with hard floors, enhancing the vacuum cleaner's suction effectiveness. Additionally, protective pads are integrated to prevent the cover from scraping against hard floor surfaces, thereby preventing potential damage.

Figure 2: Protective pads on the brush cover prevent floor damage.
2.4 Durable Construction
Constructed with a sturdy polycarbonate shell, the brush cover is designed to withstand the rigors of long-term use. A stainless steel barrier is also included to prevent longer items, such as power cords, from becoming tangled within the brush mechanism.
3. Installation Guide
To replace the main brush cover on your roborock robot vacuum, follow these general steps. Specific instructions may vary slightly by robot vacuum model; refer to your robot vacuum's primary user manual for detailed guidance.
- Turn off your robot vacuum and place it upside down on a clean, flat surface.
- Locate the main brush cover. It is typically secured by latches or clips.
- Release the latches or clips to remove the old main brush cover.
- Carefully remove the main brush if it is also being replaced or cleaned.
- Align the new roborock QV 35S Rubber Main Brush Cover with the corresponding slots on the robot vacuum.
- Press down firmly until the cover clicks into place, ensuring all latches are securely fastened.
- Verify that the cover is properly seated and does not obstruct the main brush's rotation.
4. Maintenance
Regular maintenance of the main brush cover is crucial for maintaining your robot vacuum's cleaning performance and extending its lifespan.
4.1 Cleaning the Brush Cover
Clean the main brush cover regularly, in sync with the main brush, to remove accumulated dust, hair, and debris. You can rinse it under running water, ensuring it is completely dry before reinstallation.

Figure 3: Cleaning the main brush cover with water.
4.2 Replacement Frequency
Based on your usage frequency and cleaning environment, promptly replace the main brush cover when it shows signs of wear. You can also monitor its condition through the roborock application (if applicable to your robot vacuum model) to ensure your robot vacuum remains in optimal working condition.
5. Specifications
The following are the physical specifications for the roborock QV 35S Rubber Main Brush Cover Replacement:
| Attribute | Value |
|---|---|
| Model | QV 35S |
| Length | 8.27 inches (21.0 cm) |
| Width | 2.91 inches (7.4 cm) |
| Height | 0.83 inches (2.1 cm) |
| Material | Polycarbonate, Rubber, Stainless Steel |

Figure 4: Product dimensions of the main brush cover.
6. Troubleshooting
If you encounter issues after replacing the main brush cover, consider the following:
- Improper Installation: Ensure the brush cover is securely latched and properly seated. A loose cover can affect cleaning performance or cause unusual noises.
- Reduced Cleaning Performance: Check if the main brush itself is clean and free of debris. Ensure the rubber seal on the cover is intact and making good contact with the floor.
- Unusual Noises: Verify that no foreign objects are trapped under the brush cover or around the main brush. Reinstall the cover to ensure it is not misaligned.
- Wear and Tear: If the cover is old or visibly damaged, it may need replacement to restore optimal function.
7. Support and Warranty
For further assistance, technical support, or warranty information regarding your roborock QV 35S Rubber Main Brush Cover Replacement, please refer to the official roborock website or the user manual provided with your specific roborock robot vacuum model. Keep your purchase receipt for warranty claims.





