Disassembly of the brush vacuum cleaner Xiaomi: instructions with photos and repair tips

Xiaomi vacuum cleaner brush is one of the most vulnerable elements in the design of the robot vacuum cleaner. Over time, it gets clogged with hair, threads and small debris, which leads to reduced cleaning efficiency or breakdown. You can disassemble it yourself in 10-15 minutes, if you know the key nuances from the type of mounts to the location of hidden latches. In this article, you can take a step-by-step analysis of the process with the characteristics of different models (Mi Robot Vacuum-Mop 2 Pro, Mi Robot Vacuum-Mop P, Dreame Bot, etc.), and a list of tools that really come in handy.

Importantly, Xiaomi’s brush design and Dreame’s sub-brand are similar, but there are differences in the fixing mechanism. For example, Mi Robot Vacuum-Mop 2 Lite models, the brush can be attached to additional magnets. We’ll look at the universal steps, and we’ll also point out critical differences for specific lines that are often missed in general instructions.

If you've never been to a household appliance, don't worry: it's as simple as it is, but it requires care, and the key is to not apply excessive force to plastic parts and to keep track of the sequence of actions. FAQ answering frequent questions (such as how to clean a brush without disassembling or what to do if it doesn’t spin after assembly).

1.Preparation: security tools and measures

Before you start dismantling, prepare the workspace and tools.

• ✂️ Flat screwdriver (preferably with a thin sting - suitable for watches or phones).
• 🔧 Cross screwdriver (size) PH0 or PH1 brush-hull).
• 🧲 Magnet (so as not to lose small screws and springs).
• 📸 Smartphone (for photographing the dismantling stages - useful when reassembling).
• 🧴 Alcohol or WD-40 (for cleaning oxidized contacts, if the brush is not rotating well).

Also, prepare clean cloth and toothpick to remove accumulated dirt from hard-to-reach areas. If the brush is heavily contaminated, soak it in warm water with soap for 10-15 minutes before disassembling (but don’t use aggressive detergents – they can damage the plastic!).

⚠️ Warning: Don't disassemble the brush immediately after cleaning - let it cool for 20-30 minutes. Plastic becomes more brittle when heated, and you risk breaking the latches.

If your Xiaomi model is equipped with touch sensors (such as Mi Robot Vacuum-Mop 2 Ultra), disconnect the robot from the network before disassembling and remove the battery. This will prevent accidental switching on during work.

2. Determination of the type of brush: how to find out the model

The brushes in Xiaomi vacuum cleaners are divided into three main types:

• 🌀 Main rotating brush (with rubber blades for garbage collection).
• 🧹 Side brush (small circular for cleaning corners).
• 💧 Hybrid brush (for models with wet cleaning, combines rubber and villous elements).

To determine exactly what type you're looking at, look at the labels on the back of the brush or on the body of the vacuum cleaner.

• MJXJQ01YM — The main brush for Mi Robot Vacuum-Mop 2 Pro.
• DREAME-SWEEP01 — sidebrush for the Dreame Bot line.
• XMSH02QM — hybrid brush for models with the function of washing floors.

If there is no marking, focus on the shape and material:

If you are not sure about the type of brush, take a picture and compare it with images in the official Xiaomi store or on parts sites (for example, mi-store.ru or dreame.tech).

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If the brush is creaking or not rotating, the problem may not be in the brush itself, but in the drive mechanism of the vacuum cleaner. Before disassembling, check whether the motor shaft turns when cleaning is turned on (take care of the brush axis).

3. Step-by-step disassembly of the main brush

Consider the process with the main brush (the most common case). For other types, the steps will be similar, but with adjustment for design (see the table above).

Step 1: Remove the brush from the vacuum cleaner

1. Turn the vacuum cleaner over and find the brush fixing lever (usually located on the side or bottom).
2. Press the lever and pull the brush over you, and if it doesn't respond, check if there are any additional latches (sometimes two at the edges).
3. If the brush is "stopped", gently tuck it with a flat screwdriver, but do not apply force - you can break the plastic guides.

Step 2: Removal of screws

On the back of the brush, you'll see 2-4 screws (depending on the model) that need to be twisted out with a cross screwdriver.

• 🔩 The screws can be with different threads - do not confuse them when reassembling.
• 🧲 Put the screws on a magnet or in a separate box so as not to lose.
• 🛠️ If the screws are "stuck", drop on them. WD-40 And wait 5 minutes.

Step 3: Separation of the hull

Once you remove the screws, carefully separate the two halves of the brush body, which can hold onto plastic latches -- don't pull too hard, or you'll break it. Use a flat screwdriver to fit the body around the perimeter.

1. Start at one of the corners.
2. Gradually move along the seam, pressing the screwdriver on the latches.
3. If the case does not lend itself, check if all screws are unscrewed (sometimes they are hidden under stickers).

Checked for screw absence|A screwdriver with a thin sting is prepared|The original position of the details is photographed|At hand a magnet for small parts-->

Step 4: Cleaning and inspecting internal parts

After the disassembly, you will see:

• 🌀 Shaft with blades (may be contaminated with hair and threads).
• ⚙️ Drive gears (check them for wear and tear).
• 🔋 Contacts (if the brush is electric, for example, in DreameBot) W10).

Remove all debris from the shaft and gears with a toothpick or compressed air. If the gears have chipped or they scroll, they need to be replaced. Drink the contacts with alcohol for better conductivity.

⚠️ Note: Some models (Mi Robot Vacuum-Mop 2 Ultra) have a miniature speed sensor inside the brush, so don't touch it with metal objects or wash it under running water, which can cause the sensor to fail.

Disassembly of the side brush: nuances

Side brushes are easier to understand, but they have their own characteristics.

Step 1: Remove the brush from the vacuum cleaner

The sidebrush is attached to the spring-operated axle to remove it.

1. Pull the brush aside (perpendicular to the vacuum cleaner body).
2. If it does not come down, press the lock (a small button next to the axle).
3. In some models (Dreame Bot) D9) brush is attached to the magnet – just pull it with effort.

Step 2: Disassembly of the hull

The side brush usually consists of:

• 🌀 Rotating base (with bristles).
• ⚙️ Plastic housing (protects the mechanism).
• 🔄 Springs (provides pressure on the floor).

To make sense of:

1. Remove the rotating part (pull up).
2. Put a screwdriver on the hull cover (usually it is on the latches).
3. Take out the spring and inspect it for deformation.

Clean the bristles of the wound hair and check if the axis rotates freely. If the brush does not rotate or rotates with difficulty, lubricate the axis with silicone lubrication (do not use oil-based oils - they attract dust).

Typical problems and their solutions

If after disassembling and cleaning the brush still works incorrectly, check the following points:

Problem 1: The brush doesn't rotate

• 🔌 Check the contacts (if the brush is electric) oxidized contacts can be cleaned with a blower or alcohol.
• ⚙️ Check the gears for chips. Weared gears need to be replaced.
• 🌀 Check the shaft, it should rotate freely. If it jams, lubricate it.

Problem 2: The brush is spinning in jerks

• 🧲 Magnetic debris can block the mechanism. Remove it with tweezers.
• 🔋 Weak vacuum cleaner battery - with a low charge, the brush engine works unstablely.
• 🛠️ Wear of motor brushes (in electric brushes) Replacement required.

Problem 3: The brush makes a creak.

• 💧 Insufficient lubrication of the shaft or gear. Use silicone lubrication.
• 🧹 Sand or fine debris gets into the machinery. Wash the parts with warm water and dry.
• ⚙️ Deformation of the gears - replace them.

If none of these points worked, the problem could be the electronics of the vacuum cleaner (e.g., the engine driver of the brush is faulty).

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Most brush breakages are due to contamination of the mechanism or wear of the gears. Regular cleaning (every 1-2 months) prolongs the life of the brush by 2-3 times.

6. Assembly of a brush: how to avoid mistakes

Assembling a brush is the reverse of disassembly, but with several critical nuances:

Step 1. Checking details

Before assembly, make sure that:

• 🌀 All the gears are in place and not mixed up (if there are several of them).
• 🔩 All screws in their places (do not confuse long and short).
• 🧲 Springs (in side brushes) are not deformed.

Step 2. Assembly of the hull

When connecting the halves of the body:

1. Make sure all latches are in the slots (you should hear a slight click).
2. Do not apply force - if the body does not close, check whether the internal mechanism interferes.
3. Twisting the screws cross-cross to avoid distortion.

Step 3. Testing

After assembly:

1. Put the brush back in the vacuum cleaner.
2. Turn on the cleaning mode and check if the brush rotates evenly.
3. Listen to if there are any extraneous sounds (squeaking, knocking).

⚠️ Warning: If the brush turns backwards after assembly, you have misplaced the gears or misplaced the polarity of the contacts (in electric brushes). Disassemble it again and check the location of the parts.

7 How to prolong the life of a brush: tips for care

To make the brush last longer, follow these recommendations:

• 🧹 Clean your brush after each cleaning (remove the wound hair and threads).
• 💧 Wash your brush with warm water once every 2-3 weeks (do not use hot water!).
• 🛡️ Avoid cleaning up large debris (pieces of paper, plastic can jam the mechanism).
• 🔋 Watch the charge of the vacuum cleaner - at a low charge, the brush engine works with overload.
• 🔧 Every 3-6 months, disassemble a brush for deep cleaning and lubrication.

If you use a wet vacuum cleaner, wipe the brush with a dry cloth after each cleaning and leave it to dry for 1-2 hours, which will prevent mold and corrosion of metal parts.

For models with self-cleaning brushes (e.g. DreameBot) L10 Ultra) regularly check the condition of rollers and scrapers in the docking station, and their contamination can lead to incomplete cleaning of the brush.

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If the brush has started to eat the pile or rubber blades, it's a sign of wear and tear on the bearings of the shaft, and in this case, just cleaning it won't help, you need to replace the shaft or the entire brush.

FAQ: Answers to Frequent Questions