How to remove the rear wheel from the electric scooter Xiaomi M365: nuanced

Xiaomi's rear wheel M365 — One of the most vulnerable parts of the scooter is the brake mechanism, the engine and the main load when driving, which you may need to remove to replace the tire, repair the engine, clean the brake pads or eliminate the backlash. However, the design of the scooter with an integrated engine and brake drum makes the dismantling process unobvious for beginners.

Unlike the front wheel, where you just unscrew the nut and remove the plug, the rear axle requires care: wrong actions can damage the engine power cable, break the thread or disrupt the centering of the brake mechanism. This article is a step-by-step instruction with photos of key stages, a list of necessary tools and a list of typical errors that lead to breakdowns. We will also discuss how to avoid wires break and what to do if the wheel is stuck to the axle.

Preparation: security tools and measures

Before you start dismantling, make sure you have everything you need, and not even one tool can turn a simple procedure into an hour-long struggle with jammed nuts.

• 🔧 End key 10 mm (preferably with a rattle) - for unscrewing the wheel axis.
• 🔧 Hexagon by 5 mm - for removal of the brake drum.
• 🔧 Flat screwdriver - for slashing the engine cover and locks.
• 🔧 Hammer and wooden bar - if the wheel "stick" to the axis.
• 🔧 Passenger or circ-cutters - to work with brake springs.
• 🔧 Isolation or marker - for marking engine wires.
• 🔧 WD-40 or similar lubrication - if the thread is acid.

Important: Xiaomi M365 It has a left thread on the rear wheel axis (backwards from the standard!) which means you have to unscrew the nut clockwise and twist it against. Ignoring this rule will cause the thread to fail.

⚠️ Warning: Never use a key extension cord or pipe to break a nut that has been stuck. Excessive force can break the axle or damage the frame of the scooter. If the nut fails, treat it. WD-40 And wait 10-15 minutes.

Also, prepare the workplace: put the scooter on its side so that the rear wheel is on top. Put a soft cloth under the frame so that you don't scratch the plastic. If you remove the engine repair wheel, completely discharge the battery, which will eliminate the risk of short circuits in the event of accidental wire snatching.

Step 1: Removal of brake drum and engine cover

The first step is to access the wheel axis, and that's to remove the brake drum and the plastic engine cover.

1. With the help of a hexagon 5 mm unscrew two screws fixing the brake drum (they are located symmetrically on the outside of the wheel).
2. Take the drum off by pulling it over you. If it doesn't, tap it lightly with a hammer through a wooden bar.
3. Under the drum, you'll see the brake pads and the spring, and you'll be able to move them aside carefully so you don't lose them.

Now we move on to the engine cover:

1. Put a flat screwdriver on the plastic cover on the outside of the wheel (on the opposite side of the brake) and it holds on the latches.
2. Take the lid off and put it aside, and underneath it you'll see the power connector of the engine and the wire.

Important: don't pull the wires so as not to tear them off the board! If you need to completely remove the wheel (for example, for replacement), disconnect the connector by pre-photographing or marking the position of the wires.

💡

If the brake pads are worn out (less than 1 mm thick), replace them immediately while the wheel is removed.

Step 2: Untwisting the axle and removing the wheel

Now, the most important part is the axle removal, and the key is not to break the thread or damage the engine wires.

• 🔧 Take the end key 10 mm and put it on the axis nut. Remember, the thread is on the left, so you need to unscrew it clockwise!
• 🔧 If the nut fails, apply it to the thread. WD-40 And wait 10 minutes. Don't use too much force.
• 🔧 After unscrewing the nut, remove the puck and carefully pull the axis out of the slots of the fork. If the axis is jammed, slightly tap it with a hammer through a wooden bar.

When the axle is removed, you can remove the wheel from the fork, but here's a caveat: if you don't disconnect the engine connector, don't pull the wheel over yourself, it can break the wires. First, carefully remove the cable from the slots of the frame, and then remove the wheel.

⚠️ Note: On some modifications of Xiaomi M365 (for example, M365 Pro) the axis is fixed not only by a nut, but also by a locking ring. If the wheel is not removed after unscrewing the nut, check for the ring and remove it with pliers.

If the wheel is stuck to the fork (a common problem after driving in the rain), do not try to pull it out by force. WD-40, wait 15-20 minutes, then gently shake the wheel from side to side, gradually removing it.

Brake drum screws unscrewed|Engine cover removed|The engine power connector is disconnected|Axis nut unscrewed (clockwise!)|Axis pulled from the fork grooves-->

Step 3: Working with engine wiring (if required)

If you remove the wheel to replace the engine or repair the wiring, you need to carefully disconnect all the connectors. M365 three-wire:

• 🔴 Red plus food.
• ⚫ Black is minus (mass).
• 🟢 Green – signal (for speed control).

Procedure:

1. Take a picture or draw a connection scheme so as not to confuse the wires when reassembling.
2. Carefully unplug the connector from the engine board. If it's tight, don't pull, you'd better screwdriver it.
3. If the wires are soldered (in older versions) M365), You'll need a soldering iron. Before you puff off, isolate the bare contacts to avoid short circuits.

Critical: If you accidentally close the red and black wires, it can disable the scooter controller. Always check with a multimeter for no voltage before working!

Step 4: Backup: How to Avoid Mistakes

Putting the wheel back in is just as important.

1. Properly tighten the axis nut (puffing moment - 40-50 Nm). Too weak puff will lead to backlash, too strong - to deformation of the axis.
2. Make sure that the engine wires are not clamped and do not touch the rotating parts.
3. Check the brake before the first exit: the wheel should be locked smoothly, without creaking.

After assembly, perform the test:

• 🔄 Scroll the wheel manually - it should rotate freely, without touching the fork.
• 🛑 Press the brake lever - the wheel should be locked without jamming.
• 🔋 Turn on the scooter and check that the engine is working (the wheel should slightly "twistle" when the gas is supplied).

If after assembly the scooter "twitches" when moving or the brake creaks, disassemble the wheel again and check:

• 🔧 The center of the wheel (it should be exactly in the middle of the fork).
• 🔧 The condition of the brake pads (whether they have oil or dirt).
• 🔧 Puffing up all nuts and screws.

💡

If the scooter is not driving or makes unusual sounds after assembly, stop operating immediately and check the connection of the engine wires. A short circuit can incapacitate the controller!

Frequent Mistakes and How to Avoid Them

Even experienced Xiaomi owners M365 Sometimes they make mistakes when you take off the rear wheel, and here are the most common ones and how to prevent them:

• 🔧 Counterclockwise axis nut unscrewing → The carvings are broken. M365 left-carving!
• 🔧 Sharp removal of the wheel without disconnecting the engine connector → Always turn off the power beforehand.
• 🔧 Loss of brake springs or pads → Remove the drum over a container or cloth.
• 🔧 Axis nut pull → Deformation of axle or bearings. Use a dynamometer key (optimum 40 Nm).
• 🔧 Getting dirt into the engine → Reduce your resource, work in a clean room and cover the open parts with a cloth.

Another common problem is the uneven wear of the tire after improper assembly, and if the wheel is curved, it will go eight, which will cause vibrations at high speed, and to avoid this, before the final nut tightening, scroll the wheel and make sure it doesn't hit the sides.

When to contact the service: signs of serious breakdowns

Not all problems with the rear wheel Xiaomi M365 You can do it yourself. You can talk to professionals if you want to do it:

• 🔥 The engine smokes or smells of smoke – this is a sign of an interturn circuit requiring rewinding or replacing the engine.
• 🔊 When the wheel is rotated, metal grinding is heard - there may be a break in bearings or deformation of the axis.
• ⚡ The scooter spontaneously brakes or twitches - a problem with the Hall sensor or controller.
• 🛑 Brake completely failed, despite the replacement of the pads - the brake mechanism or cable is defective.

It is also not recommended to repair yourself:

• 🔧 Scooter controller (sweetening equipment and experience with electronics required).
• 🔧 Battery (risk of fire if mishandled).
• 🔧 Speed sensors (needs precise adjustment after replacement).

The cost of repair in the service depends on the breakdown:

If you're not confident, it's better to pay for service than make a costly mistake, such as rewinding the engine incorrectly can cause the engine to fail completely, and damage to the controller often makes the scooter unfit for repair.

FAQ: Frequent questions about removing the rear wheel Xiaomi M365