DIY electric shaver repair

In detail: do-it-yourself electric shaver repair from a real master for the site my.housecope.com.

Electric shavers are available with a mains supply from an outlet and with a built-in battery. Moreover, models of the second type are most often found. They have a power button, a charger, a battery and a motor (electromagnet) with shaving blades inside them.

1 - Grid
2 - Razor knife
3 - Clip
4 - Button for fastening the knife head
5 - Switch

Electric shavers with a grid system have a knife head, consisting of a flexible metal mesh that covers a blade, or knife, block on a holder or just a knife that makes a rapid oscillatory movement, which is created using a vibrator, consisting of two solenoid coils, which together with two springs move from side to side the holder with the knife block.

1 - Rotary knife
2 - Mesh disk
3 - the Drive shaft
4 - Switch
5 - Power cord

A rotary shaver has multiple cutter heads, each of which consists of a rapidly rotating rotary blade located under the mesh disc. Since the knives cannot be sharpened, they have to be changed when they become blunt. These razors are usually driven by electric motors connected to the blades by means of a gearbox.

To replace the blades in the shaver head, remove the protective cap from the shaver blade unit. Remove the shaver blade unit from the base. Replace the knives in the knife block.

Consider the repair of an electric shaver, using the example of a little-known Chinese razor Toshiko. If the shaver malfunctions, first check the integrity of the power cord. It may be broken inside, for example near the power plug.

Video (click to play).

The next weak link is the power button. To check it, just close the contacts with a screwdriver and see if the electric motor will work.

In this case, the problem seemed to be in the 220v voltage converter that charges the battery. As you can see in the photo, the transistor burned out and cracked.

After the replacement, a new problem was discovered - the battery almost did not hold a charge.

A 1.2 volt 600mA nickel-cadmium battery is installed here, so finding a similar one is not a problem - we just buy a new one in the store.

Do-it-yourself electric shaver repair is within the power of a master. Soberly assess the existing skills, if you do not see the difference between an inductor and a capacitor, you are afraid to measure the voltage of 230 volts without threatening people's lives, it is better to discard the venture. Everyone can clean the mechanism when the electric razor does not cut. But you boast to your acquaintances: now you know how to repair Mikma electric shavers.

Modern electric shavers form two broad classes:

The first are named for the knives that rotate the rotors of electric motors. Before considering how to repair an electric shaver yourself, we will describe the cleaning process. In most cases, when the device refuses to shape beards, it means that the working head is dirty. The electric shaver set is supplemented with a brush and a special spray. Let's find out the purpose of things.

The shaver head will last no longer than 1 year. After it is considered: it's time to replace. It is recommended to clean the unit every three weeks. In the case of a rotary shaver, start with the outer screens. Gently brush each one around, sweeping out the hair clippings.

After that, the knife block is unfastened from the shaver body. The unit is disassembled into its component parts. The holder with knives and nets is removed from the plastic frame. Each pair of cutting surfaces is divided into two parts. Now the table is littered with:

  1. plastic frame;
  2. holder;
  3. two to three pairs of cutting surfaces, consisting of:
  • rotary knife;
  • mesh.

Each knife is shaped like a flange sleeve. A section of a thick-walled tube, at one end there is a washer two to three times larger in diameter. On the formed platform with a hole in the middle, beveled projections provided with cutting surfaces are located in a circle. Be careful, even when dull, the blades of an electric shaver can be harmful to your health. By the way, it concerns mesh models. Handle knives with care. Everyone saw the grid. Round parts with slits in a circle that glide over the skin as you shave.

We sweep each element of the shaver head with a brush, if an aerosol is supplied in the kit, we process the knives and nets, and re-clean. It remains to put together the nodes by setting back.

A light click means the shaver is ready to use. Check the product after assembly. It may happen that the parts are assembled incorrectly, the knife block is crooked. The shaver does not work, still does not cut - the operation was performed incorrectly.

Disassemble the shaver following the instructions above and reassemble. It didn't help, it's time to buy a new head.

Wait a moment to take the brush. You can't do it. Even a gentle touch of the bristles can damage the correct shape of the mesh. The shaver does not work well and the blades may become blocked. Straightening the mesh at home without harming it is difficult. Electric shaver repair shops will be useless helpers.

First. If the shaver is washable, clean it after each use. Consider one thing. The electric shaver is good after the purchase for the first 3-5 procedures. Then the bacteria begin to multiply shock in the head, each use brings irritation to the skin, which is powerless to remove with special means for personal hygiene. Try to find a disinfectant spray instead, treat the blades before washing. Naturally, the remedy must be for these purposes. Try holding the knives under an ultraviolet light to block the growth of bacteria.

Regarding other types of electric shavers, they are cleaned every few procedures, without the use of water. For this purpose, the mesh is carefully removed. Cleanse from hair residues by blowing properly. Try, after removing the head, knock the end of the table gently. Partially removes dirt from the shaver mesh. The knife block is fanned with a brush. If there is an aerosol in the kit, use for additional cleaning of the device.

Try the recessed foil shaver after assembly in the same way as in the previous case. The effect is unsatisfactory - it's time to buy a new head.

The internal structure of a rotary electric shaver is simple. An engine is mounted inside, by means of an output shaft and an eccentric gear that transmits torque to two or three knives. The outside of the mechanism is protected by a plastic case.

To filter the instability of the supply voltage, there are several chokes and capacitors inside. Electric shavers designed for use with different voltages have a special switch. For the technical implementation of the possibility of operation from different networks, the stator coil has four windings. Copper wires clad with cambric have a fixed color.

Before disassembling your electric shaver, try turning on the one devoid of knives. There is no automatic blocking in the absence of a head - the drive must rotate. It turns out - it's the head. Remove, disassemble, look. It is possible that the complete electric shaver buzzes and the knives refuse to rotate.

The next step is to check the mains voltage. OK - we disconnect the wire with the block from the case, measure the voltage by plugging it into the socket. Attention, be extremely careful to avoid electric shock. Check the cord by ringing a multimeter (tester). The signal passes uncertainly - it's a floating cliff. Try using a different cord to power your shaver.OK - problem limited to wire.

It is the turn of the chokes, harmonic filter capacitors. Testing is done differently depending on the specific design of the shaver. In a difficult case, the elements are soldered (removed) in turn, the integrity is examined:

  • chokes are ringing;
  • the capacitors are not swollen.

There are special devices - it will be useful to measure the denominations of the elements. The capacitance of the swollen capacitors is less than the number on the case. It is simply impossible not to notice.

You can go the other way. Disconnect the stators, measure the terminal voltage in both switch positions. Be careful to avoid electric shock. The multimeter probes are connected to the switched off device.

If no malfunction is identified, go to the stator windings. Call each one if you know the pin locations. The resistance of the windings is Ohm units. It is impossible to fix a shaver with a faulty stator at home.

The terminals ring in pairs - a little, there is no guarantee of complete serviceability. Carefully measure the output current of the voltage switch in both positions. Let's make a reservation right away, the Russians in the country use a nominal 230 volts, measurements in this position will be enough. If there is no current, the problem is limited to the stator.

You can wind the stator coils at home if you have the appropriate skills. You can buy suitable ones.

The next thing to do when repairing electric shavers is to examine the armature winding. Let's check the voltage value of the motor brushes. The voltage is present, the razor does not work - the matter is in the anchor winding. Rewind at home if you know the parameters of the wire, the number of turns, and other characteristics.

Check the stator windings and armatures with a multimeter. Each is removed from the electric razor and rings. You can also measure resistance.