Regular maintenance of a robotic assistant is the key to its long service and perfect cleanliness in the house. Many owners of smart equipment face a situation when the device makes strange sounds, loses suction power or completely stops with an error on the display. Often the reason lies in the banal contamination of the main cleaning site - a shaft with a pile on which hair, animal hair and thread are wound.
The process of extracting this element may seem difficult only at first glance, especially if you are doing it for the first time. Depending on the model of your Xiaomi, Roborock or Viomi, the design may have its own features that require careful attention. In this article, we will discuss in detail how to safely and correctly get a brush without damaging plastic latchholds or motor.
It's important to understand that ignoring cleaning causes the engine to overheat and wear the bearings quickly. The mechanical resistance created by tightly wound hair makes the electronics run in extreme mode. So knowing how to quickly remove and clean the shaft is a basic skill for every smart vacuum cleaner owner.
Preparation for maintenance and security measures
Before you turn the device over and start disassembling, you need to perform a number of preparatory steps, which will not only protect you, but also prevent accidental damage to the electronics or mechanical parts. First of all, make sure that the robot completely stopped and went to standby mode.
⚠️ Warning: Never try to remove a brush or flip a working robot vacuum cleaner. Moving machinery can cause injury, and abruptly stopping the motor under load can damage the control controller.
It is recommended to send the device to the base or turn it off with a power button if the model does not have an automatic return. After stopping, carefully turn the robot belly up, putting it on a soft surface, for example, on a folded towel or mat, this will protect the upper cover and sensors from scratches.
You will need the following tools for quality cleaning:
- ✂️ Scissors with thin blades for cutting hair.
- 🧹 Small brush (often included) to remove dust.
- 🧷 Tweezers for removing small objects from bearings.
- 🧼 Dry rags for wiping the body.
The use of water for washing the shaft is permissible only if the manufacturer explicitly indicated this in the instructions, but you need to dry it carefully before installation.
Pay special attention to inspecting the bottom of the device for large objects that may have been stuck. Rocks, coins or toys can block the wheels, which will make it difficult to access the brush mechanism. Mechanical wheel locking is often perceived by users as a problem with the shaft, although the cause lies deeper.
Dismantling of brushes in models with floating shaft
Most modern models, including the popular Xiaomi Vacuum Mop series and many versions of the Roborock, feature what's called a floating shaft. Its design allows it to shift slightly, adapting to the floor topography, which improves the quality of cleaning on carpets.
The removal process in these models is as simple as possible and requires no force. Find two locking legs along the edges of the protective casing that covers the brush. They usually have a characteristic notch or notch for the finger. Press them simultaneously or alternately to release the mechanism.
Once you remove the grate, you'll see the shaft itself, which is just in the grooves, and to get it out, you just have to lift one side slightly and pull it out, and the floating mechanism has no rigid attachments, so it has to come out easily. If you feel strong resistance, check if the wool is wound on the ends of the shaft, blocking its movement.
☑️ Algorithm for removing a floating brush
In some cases, especially after long use, the pile can be so tightly compressed that the shaft will jam. In this situation, do not pull sharply. Try to gently shake it from side to side, before cutting the bundles of hair sticking out with scissors.
Features of extraction in models with fixed shaft
Older models of robot vacuum cleaners, as well as some budget series, can have a rigidly fixed shaft design, in which the brush is attached to the body with screws or special latches that require more careful handling.
First, remove the protective grille that can be held on the screws. You'll need a small cross screwdriver. Unscrew the fasteners by folding them into a container so you don't lose them. After removing the grille, notice the ends of the shaft: they can be inserted into special seats with locks.
⚠️ Warning: When working with fixed shafts, it is strictly forbidden to use excessive force. The plastic of older models becomes brittle and can crack, which will require replacing the entire deck or body.
To extract the shaft, you often need to press the locks on the end sides or slightly turn the shaft before clicking. Some Xiaomi designs use a quick removable system: you need to turn the shaft 90 degrees or press the central unlock button. The locking mechanism in these models is more complex, so it is recommended to act slowly.
If the shaft doesn't lend itself, look at the ends. Often there's a dense lump of hair that piers the bearing. Cleaning the ends with tweezers can free the shaft and it will come out without any problems. Don't use metal objects to pick inside the seats so as not to damage the contacts or gears of the drive.
Cleaning the shaft from hair and wool: effective methods
Once you've got the brush, the most important step is cleaning. It's not enough to just shake off the dust: the hair and fur of the animals are tightly wrapped on the axle and bristles, creating a tight cocoon. First, use scissors to cut the wound layer along the shaft.
Make a longitudinal incision along the length of the shaft, trying not to damage the bristles themselves. Then remove the cut layer of hair. The remaining threads are conveniently removed with a crest from the kit or a regular old comb. The movements should be directed from the center to the edges.
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To remove sticky dirt and fine dust, wipe the shaft with a slightly damp cloth, but be sure to let it dry completely before installation.
Pay special attention to the ends of the shaft where the bearings are located. This is where the fine debris is most often stuffed, which over time blocks rotation. Use tweezers or toothpicks to carefully extract dirt from the gaps. Sliding bearings should rotate freely, without creaking or jamming.
If the brush has removable end caps (in some Roborock models), they can be removed for deeper cleaning. However, do this only in case of emergency, as frequent disassembly can weaken the fixation. After cleaning, check the integrity of the bristles: if they are badly worn or broken, the shaft is better replaced.
Diagnosis of condition and replacement of consumables
Regular cleaning is also a good way to diagnose the condition of consumables, a brush is a consumable and requires periodic replacement, and knowing when to buy a new one will help avoid a decrease in the quality of cleaning.
The life of the main brush is usually 6 to 12 months, depending on the intensity of use and the type of coatings in the house. On carpets, wear is faster.
- 📉 The bristles became short, stiff and lost elasticity.
- 🔇 There was a strong noise or hum when the brush engine was working.
- 🌀 The shaft stopped rotating even after thorough hair cleaning.
- 🏚 Plastic elements of the shaft cracked or crumbled.
When buying a new brush, make sure it is compatible with your model.The market offers many counterparts, but original Xiaomi components or certified partners (like Rock or Proscenic for certain lines) guarantee perfect balancing. Cheap counterparts can be skewed, resulting in beats and noise.
Can I wash my brush with water?
The table below shows the recommended service intervals for the various elements of the cleaning system:
| Element | Frequency of cleaning | Time of replacement | Signs of wear and tear |
|---|---|---|---|
| The main brush | 1-2 times a week | 6-12 months | Fragile, loose form |
| Side brush | Once a week. | 3-6 months | Beam curvature |
| HEPA filter | Once a week (shake out) | 2-3 months | Loss of color, smell |
| Sensors. | Once a month | Not required | Navigational errors |
Assembly and inspection of the device
After successful cleaning and diagnosis, start assembly. Make sure the shaft is completely dry if you wash it. Insert the brush into the seats, observing orientation. Usually, there are color marks (e.g., blue and yellow sides) on the ends of the shaft and in the body that should match.
Insert the shaft until the characteristic click. Check if it rotates freely by hand. If the rotation is tight, remove the brush and check if it has fallen into the slots correctly. Then install a protective grille and snap the locks. They should close with a slight but sure click.
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The correct installation of the brush is confirmed by the free rotation of the shaft from the hand and the absence of backlashes after closing the protective grille.
Turn the robot back into the operating position and turn it on. Run a short cleaning or on-site cleaning mode to make sure there is no extraneous noise. If the robot is quiet and the brush is rotating, the procedure is successful. Stable operation of the motor confirms that resistance is removed.
Remember to clean the main brush's contamination sensor, if you have one in your model, which is usually next to the shaft and is a small window, and wipe it with a dry cotton swab so that the robot can correctly detect the degree of contamination.