How to disassemble the brush of the vacuum cleaner Xiaomi Deerma: detailed instructions with photos and tips

The Xiaomi Deerma vacuum cleaner brush is a key element that determines the quality of cleaning, and over time, dust, hair and debris accumulate inside, leading to a decrease in suction power, unpleasant smell or even engine failure. Disassembly of the turbobrush may be necessary for deep cleaning, bearing replacement, repair of electrical contacts or removal of stuck objects. CXSJ, VC20, DX700) has its own characteristics - it is important not to damage plastic latches and not to lose small parts.

In this article, you will find a step-by-step photo guide, a list of tools you need, and tips for diagnosing malfunctions. We will learn how to carefully remove the lid, remove the blade shaft, clean the bearings and collect everything back without consequences. We will focus on typical errors that lead to a brush breaking after disassembly, such as the wrong position of the sealing rings or skewed shaft.

If your Deerma vacuum cleaner is getting worse at picking up garbage, humming loudly or rattling out loud, it's probably the brush that's the problem. Don't rush to buy a new one: 80 percent of the time, you just have to take it apart and clean the old one. Let's get started!

What models of Deerma brushes can be disassembled independently

Not all Xiaomi Deerma brushes are disassembled at home. The manufacturer often uses non-dissoluble body parts (glued or sealed with ultrasound), but most turbo brushes can still be service.

• 🔹 Deerma CXSJ (series 1500W–2000W) — turbobrush.
• 🔹 Deerma VC20/VC25 — vertical vacuum cleaners, disassembled through end screws.
• 🔹 Deerma DX700/DX800 — models with a metal shaft, require accuracy when removing bearings.
• 🔹 Deerma CM600 — compact brushes for hand vacuum cleaners, disassembled without tools.

⚠️ Note: Deerma brushes for robot vacuum cleaners (e.g, DX100 or CM100) They're usually indissoluble, they're glued together, they don't have any removable attachments, and you try to disassemble them, and they break down.

To determine exactly what your brush is, look at the sticker on the vacuum cleaner body or on the brush itself: DEERMA-CXSJ-1800-TURBO. If there is no marking - focus on the type of attachment to the hose (round connector or rectangular).

Tools and training required

You don't need professional equipment to disassemble a Deerma brush, just a basic set, and the rule of thumb is, don't use screwdrivers or sharp-ended knives to avoid damaging plastic parts. Here's the full list:

• 🔧 Plastic blade (or mediator) - to separate latches.
• 🔧 Cross screwdriver (usually) PH0 or PH1) — for screws in some models.
• 🔧 Tweezers - for extraction of small parts (springs, seals).
• 🔧 WD-40 or silicone lubricant - for cleaning bearings.
• 🔧 Cotton swabs and wipes - to remove dust.
• 🔧 Hair dryer (optional) - to dry parts after washing.

Before disassembling, follow the preparatory steps:

1. Disconnect the vacuum cleaner from the network and remove the battery (if the model is wireless).
2. Remove the brush from the hose or tube - usually you need to press the lock button.
3. Clean the outer part of the brush from visible debris (hair, thread) - this will simplify further work.
4. Prepare the workplace: lay a light cloth so as not to lose small details.

⚠️ Attention: If the Deerma brush connects to the vacuum cleaner via an electric connector (such as in turbo models), don't pull the wires - first disconnect the contacts by pressing the lock!

Step-by-step disassembly of the Deerma brush: from the lid to the shaft

The process of disassembly depends on the model, but the general scheme is the same for most brushes. We will consider a universal algorithm with the example of Deerma. CXSJ — If you have a different brush, you should look at the same design.

Step 1: Removal of the upper cover

Most Deerma brushes have a lid attached to plastic latches to remove it.

1. Put the brush with the blades down on the table.
2. Insert a plastic blade into the gap between the top and bottom of the body (start with the corner).
3. Carefully drive the shoulder blade along the perimeter, alternately snapping the locks. There are usually 4-6.
4. After removing the lid, put it aside - there may be springs or seals inside.

Step 2: Extract the shaft with blades

When you take the lid off, you'll see a bladed shaft that's attached to the body through the bearings to remove it.

1. Carefully pull the shaft on yourself - it should come out along with the bearings.
2. If the shaft does not lend itself, check if there are hidden screws under stickers or rubber plugs.
3. Some models (for example, DX700) The shaft is fixed with a locking ring - it must be tweezed with tweezers.

⚠️ Warning: Do not use excessive force when removing the shaft - this can damage the motor winding (if the brush is electric) or bend the axle. If the shaft is not removed, check if the bearing is jammed due to rust.

Step 3: Disassembly of the bearing assembly

Bearings are the most vulnerable part of the Deerma brush, and they get polluted and make noise and vibrations to clean them.

1. Remove plastic or metal bearing covers (they may be on latches or screws).
2. Remove the bearings from the shaft. If they're stiff, use them. WD-40 And gently spin the shaft back and forth.
3. Wash the bearings in kerosene or alcohol, then lubricate with silicone lubricant (don't use litol - it collects dust!).

Critical detail: at the brushes of Deerma VC20 Bearings are often of a non-standard size (internal diameter 6 mm). If the bearing is worn out, replace it with a labeled analogue. 606ZZ or 626ZZ.

Step 4: Cleaning and Diagnosing Parts

After disassembly, carefully examine all the elements:

• 🧹 The blades -- check for cracks and chips. If they're deformed, the brush will hit the body.
• 🔌 Contacts (for electric brushes) - clean from oxidation with alcohol.
• 🌀 Bearings - should rotate smoothly, without backlash.
• 🔋 Wires – Check the integrity of the insulation.

Use:

• Toothbrush + Soap solution - for plastic parts.
• Cotton swabs + alcohol - for contacts and motor.
• Compressed air – to remove dust from hard-to-reach places.

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If the bearings are worn out, don't lubricate them, replace them, and the lubricant will temporarily reduce the noise, but after 1-2 months the problem will return.

Typical Deerma brush faults and how to fix them

Once you have your brush taken apart, you may encounter the typical problems that Deerma has, and the table below shows the most common malfunctions and how to fix them.

If the brush does not work properly after cleaning and assembly, check:

• 🔌 The condition of the motor brushes (carbon contacts) - they could have been erased.
• 🌀 The centering of the shaft - if it is set curve, there will be a beat.
• 🔋 The voltage on the contacts (for electric brushes) - should be 12–24V.

Assembly of the brush Deerma: the order of action and nuances

Putting the brush back together is often harder than disassembling, and the rule is, watch for symmetry, all the details must fall into place effortlessly.

1. If they have protection (metal covers), orient them with a mark outwards.
2. Insert the shaft into the body so that the blades do not cling to the walls. Rotate the shaft with your hand, it should walk smoothly.
3. Secure the lid starting on the opposite side of the connector. The latches should close with a slight click.
4. Check the work: connect the brush to the vacuum cleaner and run at minimum power. Listen to outside noises.

⚠️ Attention: Deerma brushes VC20 and DX700 There's a sealing ring between the body and the lid, and if you forget to put it in, the dust will get in, and the brush will quickly fail.

If the brush vibrates or makes noise after assembly, take it apart again and check:

• 🌀 Proper installation of bearings (they must not backlight).
• 🔧 The swelling of the sleeves (if any) leads to a slew of sleeves.
• 🧲 Position of magnets (in models with brushless motor).

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The most common mistake in assembly is shaft skewing. If the brush is warm or noisy after repair, take it apart and check the bearings.

Cleaning the brush without disassembly: when it is possible

It's not always a complete disassembly -- sometimes a surface cleaning is enough -- if you:

• 🧹 The brush is clogged with hair or threads, but the shaft rotates freely.
• 🌀 Bearings don't make noise, but the blades catch the garbage.
• 🔌 No problems with the electrical part (for turbo brushes).

For clean-up purposes:

1. Remove the brush from the vacuum cleaner and remove visible debris with your hands.
2. Use scissors or tweezers to cut the coiled hair off the shaft.
3. Blow the air ducts with compressed air (for example, a canister for the keyboard).
4. Wipe the blades with a wet wipe with detergent.

⚠️ Warning: Do not wash your brush under running water - moisture can get into bearings or contacts (in electric models). If a deep wash is required, disassemble the brush first and remove the electrical components.

For the prevention of clogging of the brush:

• 🧹 Clean it after each cleaning (it is enough to remove the garbage from the blades).
• 🌀 Once a month, check the course of the shaft - it should rotate without jamming.
• 🔌 In electric brushes once every six months clean the contacts with alcohol.

When disassembly will not help: signs of engine failure

If the Deerma brush doesn't work after cleaning and assembly, the engine may be the problem, and here are some signs that it's time to replace it:

• 🔥 The smell of burning indicates a burned winding.
• 🔌 Lack of response to connection to vacuum cleaner (even in turbo mode).
• 🌀 Strong vibration with metal grinding - possible wear anchor.
• 🔋 Sparkling in the area of the collector (visible when working in the dark).

At home, it is almost impossible to repair the Deerma brush engine, requiring winding or replacing the brushes (carbon contacts), the cost of such repairs often exceeds the cost of a new brush.

• Buy the original brush (the article can be found on the old one).
• Choose an analogue from other brands (for example, brushes for Dyson or Karcher are sometimes suitable for the connector).
• Contact the Xiaomi service center - if the vacuum cleaner is guaranteed.

The average cost of a new brush for Deerma is from 1,500 to 3,500 rubles (depending on the model).

• 🔹 Type of attachment (round or rectangular connector).
• 🔹 The presence of turborezhim (if it was in the original brush).
• 🔹 The length of the brush should match the old one.

FAQ: Frequent questions about Deerma brushes