The hair clipper does not work: diagnostics and repair

The hair clipper is an indispensable tool for both professional hairdressers and home hairdressers. These clippers are divided into household and professional. But both of them, sooner or later fail. Typically, this unit is repaired by power tool repairmen, for example, in a household. But some malfunctions of machines can be easily repaired with your own hands. Before you start looking for breakdowns, if your tool does not work well, you need to have an idea of ​​\u200b\u200bthe internal structure of this clipper.

Hair clipper device

There are 2 types of hair cutting units, which differ from each other in the principle of operation.

Rotary

This type of clipper is the most expensive on the hairdressing power tool market and is available in two versions: mains powered devices and cordless tools. Rotary machines are distinguished by their reliability, high power and durability. The main driving element of this apparatus is an electric motor, on the rotor of which an eccentric is put on. During rotation, the eccentric connected to the movable knife moves it in different directions. Also in the device there is a knife block, consisting of a fixed part and a movable one.

In a stand-alone version, the tool body contains accumulator battery (battery) and control board.

Vibrating

This is a more budget option for power tools for hairdressers than discussed above. In this machine, instead of the electric motor coil installed. In front of the coil is a pendulum containing a permanent magnet. When current passes through the coil, the polarity of the magnetic field changes at its core with a frequency of 50 Hz. Therefore, the permanent magnet in the pendulum changes its position all the time, and since the latter is connected to a movable knife, it starts to move. Also in the device you can see the power button.

Main malfunctions

The search for breakdowns in clippers may differ, depending on their design features.

Rotary device malfunctions:

• breakage in the head of the block of nozzles;
• failure of the electric motor;
• breakage of the control button;

• problems with the network wire;
• eccentric wear.

Battery unit malfunctions:

• battery life has expired, or it is faulty;
• the power supply has failed;
• problems with the cord going from the power supply to the device;
• burned out control board;

• mechanical failures in the knife block.

Vibrating machine malfunctions:

• breakage of the coil winding;
• loud noise;
• the network cable is faulty;
• broken power button.

In addition to all these problems, there are breakdowns that are inherent in all types of hair cutting units: the tool does not cut at all, cuts badly, with gaps, pulls or chews hair.

Troubleshooting algorithm

First of all, if your hair clipper does not turn on, you need to check the presence of voltage at the outlet, as well as check the power cord and plug.. The voltage in the outlet is checked very simply: plug any electrical appliance into this outlet. If it works, then there is tension. Next, you need to check the plug: if it is collapsible, then you need to unwind it and make sure that the wire has good contact with the pins of the plug. If it is non-separable, then you will have to disassemble the unit and ring both wires using a tester.

A common reason why the machine does not work can be a faulty power button. In addition, you should make sure that the wires are not soldered from its contacts.

In the case when the button, wire and plug are in order, check if the contacts inside the device leading to the motor or to the coil are soldered. If no contact problems are found, then you will need to ring the windings of the electric motor or coil.

If it stopped working cordless hair clipper, then first of all, the operability of the power supply is checked. Next, you will need to check the battery located inside the unit housing. In the case of a non-working battery, it will have to be replaced with a new one, since the battery cannot be repaired. If the power supply and battery are in order, then the control board (if any) is called.

In the event of malfunctions caused mechanical damage internal parts of the machine, the electrical part of the unit will start up. Therefore, a breakdown is sought in the head, where the knives are located, or in the block where vibrations are created. This may be a problem with the eccentric (in inexpensive models it is made of plastic, it wears out quickly), or a breakdown of the pendulum at its junction with the movable knife.

How to fix a tool yourself

You can also fix minor malfunctions of rotary or vibrating clippers at home. In complex cases, a specific tool will be required, as well as appropriate qualifications. Let’s analyze the main problems inherent in each type of device.

rotary machines

One of the most common malfunctions of rotary models is clogging of the motor shaft and, as a result, failure to start it. At the same time, the indication does not react in any way, while the machine itself starts to heat up, buzz, or even stops turning on.

To fix the problem, open the housing and clean the rotor with the eccentric from used oil and other dirt. The disassembly process largely depends on the brand of the machine. As a rule, it is enough to loosen a few screws on the case, and then slightly open the casing under which the engine is hidden. Difficulties may arise when disassembling expensive models with enhanced protection and other additional elements. Below is the disassembly and repair of the Moser ChromStyle 1871 rotary machine.

Engine problems may show up as a result of the fall of the machine. Here you also need to open the device and inspect the wires with the terminals for physical damage. If necessary, replace the first and properly tighten the second.

If along with the motor display does not work, then it would be useful to check the power cord with a plug. Kinks, high humidity and excessive heat affect the wires. This point is especially relevant for budget models, where the cable has mediocre protection.

For diagnostics, it is necessary to disassemble the body of the machine and check the power cord with a multimeter. If the ringing indicates a break, then it is better to replace the cable, rather than twist it. This is especially true for expensive and powerful models, where stable operation largely depends on the quality of the wiring.

Vibrating machines

The movement of the blades in this case is organized by means of a pair of springs working in tandem with a pendulum. A common problem is the breaking of one of the spirals or the exit from the grooves. Less often, both springs burst: the knives stop moving at all, while the engine and indication work.

Opening the case will immediately indicate the cause of the malfunction, and replacing the part will not cause unnecessary questions. Springs are sold in specialized stores. For branded and expensive models, you can look for spare parts in service centers, while the springs of budget devices can be made by yourself from improvised materials.

Springs are the weak point of vibrating clippers

During operation, the machine sometimes starts buzzing or getting hot. This may be due to voltage fluctuations in the mains. Some premium models have a built-in stabilizer, but most other machines do not have them. It is worth checking the performance of the device in another place where there were no power surges, or connect the device to an external stabilizer.

Extraneous rattling noise can be caused by poorly tightened fasteners. And this applies not only to the outer casing, but also to the threaded connections on the engine. The machine constantly vibrates, gradually loosening the washers and nuts. It is worth disassembling the device and tightening all fasteners.

Knife sharpening

Most models are equipped with solid stainless steel blades with carbon, diamond or even titanium coating. The latter practically do not need sharpening, but budget solutions, where mediocre steel is used, have to be serviced quite often. The procedure in the latter case can not be called complicated, so it can be organized at home.

Sharpening conventional knives:

1. We loosen the fasteners on the blades.
2. Carefully remove the knives, being careful not to touch the threads on the retaining bolts.
3. We clean the surface of the blades from extraneous dirt with soapy water. You can use a toothbrush and dish detergent.
4. Dry the knives dry.
5. We process blunt surfaces with a grindstone.
6. We collect the machine in the reverse order.

If the design seems complicated, then it is better to film the disassembly process on a mobile phone camera, which will allow you not to leave “extra” parts after sharpening. Some knives can be processed only with special equipment. The blades of branded and expensive products are sharpened exclusively on machines or, in extreme cases, on faceplates.

The fact is that a good knife has a clearly calibrated and far from simple geometry, which makes manual processing with a grindstone difficult. Especially advanced devices have automatic sharpening at all.

Setting the cutting unit

During operation, the main elements of the machine begin to work not as they should. One malfunctioning part can desynchronize all the others. First of all, you should check the following:

• the location of the blades — they should be parallel to each other;
• amplitude of movement of the dynamic plate;
• lugs on the casing.

Cleaning and lubrication should be carried out on a regular basis, especially if the machine is actively used.

Important! A sure sign that maintenance is needed is excessive vibration and excessive heat. Such symptoms should never be ignored.

Fault Prevention

It is much easier, and more practical, to prevent possible malfunctions by preventing equipment than to rack your brains over solving problems after. But each type of machine needs its own individual approach.

Portable models

Mid-range battery devices designed for gentle loading, and this is about 14-17 haircuts per day. Most often, such a technique is used as an auxiliary tool, and not the main one: trim, trim, etc.

Vibrating

Such equipment requires a periodic break due to structural features. Vibrating machines overheat quicklyso after 15-20 minutes of use they need at least a 10-minute break.

Rotary

This is the best option for streaming. Solid models of the mid-budget and premium sectors equipped with an intelligent cooling systemwhich allows them to be used in difficult conditions. Yes, they also require breaks during the day, but not as often as the aforementioned machines. In addition, rotary devices are noticeably easier to maintain and repair as well.

A general and mandatory rule for all types of machines is regular lubrication and cleaning. If we are talking about a beauty salon with high traffic, then maintenance must be carried out at least a couple of times a day. This will avoid many serious problems, such as excessive noise, vibration and overheating.