How to independently disassemble the grinder

Analysis of the grinder does not require special plumbing skills, it does not cause serious difficulties. However, the work must be done very carefully and with the utmost care. How to disassemble the grinder, you can read on the pages of the Internet. Many sites show video with detailed technological process. It is necessary to disassemble the grinder, not only when it is out of order and it was necessary to replace any part, it must also be done to clean the instrument from dirt.


When the grinder breaks, the first thing is to disassemble it and clean it thoroughly, in most cases the tool starts working.

That is why the actions that are necessary to disassemble the grinder should be known to anyone who owns such a tool and wants it to work long and efficiently. The stores offer a large assortment of this mechanism, manufactured by various companies. They differ:

  • dimensions;
  • form;
  • quality.

However, all models of any manufacturer have the same technological assembly. All grinders are equipped with the same set of parts.

Main modules used


Bulgarian device

The device is Bulgarian.

  1. The body, usually made of special impact-resistant plastic.
  2. Powerful electric motor.
  3. High quality gearbox.
  4. Smooth start.
  5. Motor switch
  6. SJS system. The presence of the system allows the tool to work smoothly without jumps. In addition, it turns off the grinder in case of a disk jamming, minimizes vibration. It saves the operator from severe injury.
  7. Protective cover
  8. Additional handle. With it, you can keep the grinder during the work. Such a handle can be installed in a variety of positions, which gives the instrument versatility.
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What may be required for work

The process of disassembling the grinder requires several tools:

  • spanners;
  • screwdrivers;
  • pliers;
  • vice;
  • hammer;
  • grease;
  • rags;
  • gas wrench.

The difficulty of disassembling the grinder due to the fact that the parts have very tight contact. This allows you to cope with the highest loads. The parts do not move when working, and no oscillatory movements occur. Of course, the master will do the disassembly best of all, but you can try to do everything yourself with maximum accuracy.

Tools needed for work

Tools required for work: round pliers, ruler, caliper, pliers, electric drill, steel brush, megger.

Before you begin to disassemble the grinder, you must prepare the workplace, removing all unnecessary parts from the workbench. A clean table will provide an opportunity to not accidentally lose any small detail.

At the first stage, the bolt holding the casing is unscrewed. It is very easy to remove it, there are no especially dense connections here. Then you need to unscrew the screw, remove the plastic plate. The outer cover needs to be moved towards the cord.

Basically, all models of Bulgarians have a variety of devices. However, a common detail is the electric motor, which includes:

  • anchor;
  • stator;
  • collector;
  • brushes.

Another mandatory part of the grinder is a gear designed to regulate the power and speed. The electric motor together with the gearbox is mounted in the housing.

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Gear Reducer

He is held by four bolts. They need to be unscrewed and with extreme caution remove the gearbox from the body of the grinder. Analysis of the gearbox is necessary for its cleaning and replacement of worn parts. This is one of the most important components of the Bulgarian, which is experiencing huge loads during operation.

It includes:

  • housing;
  • large gear;
  • driven gear;
  • bearing. It must be lubricated to reduce friction.

To get the rotor out of the gearbox housing, it is necessary to unscrew the nut that holds the rotor. Special puller to get the rotor. Such an operation is associated with some difficulties, so if there are no special skills, it is better to provide such work to professionals. Without a puller is not enough.

I must say that for simple removal of dirt, such a detailed disassembly is not required. It is only needed to replace a worn bearing or a damaged rotor.

To remove the anchor, you must first remove the brushes and gearbox, gently pull the anchor, holding it by the gear.

This operation will require some effort. Removing the anchor from the case should be done very carefully, as it breaks easily.

When during work there is a strong arcing, a large body heat, you just need to get an anchor for cleaning the collector. The device will be ready for operation again.

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How to disassemble the gearbox correctly: recommendations

When the gearbox completely refuses to work, it requires complete disassembly to replace parts and thorough cleaning. To carry out the work, you need to prepare the locksmith vise. All work is performed in a certain technological sequence:

  1. The wrench unscrews the bolt holding the gearbox housing.
  2. The body of the rotor with great care is fixed in a vise.
  3. Making the hammer slack, the body is removed.
  4. The rotor is in a comfortable position to remove the bearing. Again clamped vise.

Putting a wooden block, knocked out the bearing. To remove the gear from the gearbox axis it is necessary:

  1. Wrap the rotor with a cloth and fasten it with jaws.
  2. The gear is also wrapped with rags, using a gas key, turn it counterclockwise.
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How to remove the spindle: tips

The spindle axis works in conjunction with the main gear, which in its composition has:

  • housing;
  • bearing;
  • rubber cuffs.

To disassemble the spindle housing, you must first remove the main gear, for which special tools are used.

Removing the gear, the body is set in a vice. By applying a wooden bar, striking it with a hammer, with great caution remove the spindle, which is wearing a bearing. Bearing removal is done as described above.

Gearbox disassembly should be performed regularly, especially when the tool has been subjected to intensive use. After disassembly, replace the lubricant. Most often used "Litol-24". I must say that the lubricant should change constantly after a certain period. This allows you to extend the life of the gearbox for many years, due to the reduced wear of its component parts.

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