How to disassemble the Bosch screwdriver button. Elements of the power supply

Do.It.Yourself screwdriver repair and causes of malfunction

Screwdriver. A mobile tool that facilitates work with fasteners and threaded joints. Until recently, battery screwdrivers could only be found in the arsenal of professionals, but with the advent of inexpensive inexpensive household models, their popularity increased sharply.

Unlike expensive professional tools, budget analogues have a smaller resource, which more often fail.

One of the weakest places of household screwdrivers is the start button and the reverse switch. As practice shows, it is they who break most often.

Over time, the tool ceases to respond to any manipulation. Often there is a problem of the opposite nature when the motor begins to work spontaneously.

Bosch GO Screwdriver. Disassembly

In some cases, to eliminate the defect, it is enough to disassemble the tool and clean, although more often you need to complete Replacing the screwdriver button. Both in the first and in the second case, you can eliminate the problem with your own hands. About everything in order.

Screwdriver and its design features

You should start repairing a screwdriver with your own hands with familiarization with its design. The main element of the screwdriver is an electric motor. Screwdrivers are both network and battery type. The use of a network screwdriver resorts less often, due to such a drawback as the need to connect the tool to the 220V network. The battery.Type tools are more popular, as they allow not only the repair work of the house, but also beyond its borders.

The main nodes of the battery screwdriver are:

  • Frame. Usually all screwdrivers are made of durable plastic.
  • Start button. It is arranged so that the number of revolutions of the cartridge depends on it.
  • Electric motor. In the battery tools, single.Phase collector.Type and direct current engines are used. The engine is a rotor, a stator in the form of magnets, as well as a brush unit.
  • Gearbox.
  • Effort regulator.
  • Reversion switch.
  • Battery. It is usually removable and often equipped with a product in a double copy.
  • Cartridge. As a rule, fast.And.Packed cartridges are used.

Some models are additionally equipped with LED lighting lights, as well as battery charging indicators. Returning to problems with a screwdriver, it should be noted that any of the above elements can cause a tool malfunction. What is needed for repair? First of all, it is required to find the cause of the breakdown, and then make the appropriate decision to eliminate it. The tool can be divided into two parts: electrical and mechanical. Initially, it is required to find out what is the problem of the inoperability of the screwdriver: in mechanics or electrician. This will not be difficult to do, so we consider the breakdown in more detail.

Malfunctions of the mechanical part

It is possible to identify mechanical malfunctions of screwdrivers by such a feature as the audibility of the functioning of the electric motor. When you press the start button, signs of the electric motor are heard, but at the same time the tool cartridge does not rotate or the characteristic sounds of a malfunction are heard during rotation.

The device of the screwdriver is quite simple, but a significant drawback is that all elements are almost 2-3 times smaller than electric drill. The mechanical possible breakdowns of the screwdriver include the following malfunctions:

    Bench of the cartridge. Despite the fact that fast.Sounding cartridges are more universal and simple in work, their significant drawback can be called a low service life. It is impossible to fix a fast.Packed cartridge, so if the tool refuses to hold a drill or bit, then the cartridge should be removed and replaced with a new. This is one of the most frequent malfunctions of the tool, but at the same time it will not be necessary to disassemble the screwdriver.

It should be noted that the small dimensions of the mechanical part of the tool are somewhat complicated by the process of repairing the tool, so be sure to be careful when carrying out repair work.

Malfunctions of the electric part

Unlike a drill, screwdrivers function mainly from batteries. This means that different electric motors are used in the design of these tools. Determining the malfunction of the electrical part of the screwdriver is not difficult. If the battery is charged, but when the “Start” button is pressed, the sound of the electric motor is not heard, then the reason is the breakdown in the electrician. Consider the main types of malfunctions of the screwdrivers on the electric part.

  • Battery malfunction. Initially, you should pay attention to the battery. As a rule, boat-quality nickel-cadmium batteries are used at screwdrivers. They have a significant drawback, which consists in the need to charge it only when it completely “sits”. Such batteries cannot be recharged, as this reduces their service life. If one day the screwdriver refuses to function, then do not rush to disassemble it, make sure that the battery is working and gives out a charge. You can check by connecting the second battery. The battery charge can also be checked using a tester, which should show the corresponding voltage value.
  • Charger malfunction. There is a special charger for charging the battery. If the battery is discharged even after you have charged it, then you should check the integrity of the charger. For these purposes, there are usually light indicators on charging devices. If they are not, then you need to use the multimeter.
  • Failure to include button. It is necessary to check the start button, since often the cause of its inoperability is the oxidation of contacts or dust. The tool should be disassembled, then clean the contacts. Buttons usually in screwdrivers have a function of regulating the speed of rotation of the cartridge, for which the transistor is installed. If the tool works, but the function of regulating the speed number is absent, then you need to replace the transistor.

Now you know the main signs and types of screwdrivers of screwdrivers. To repair it, you do not need to be a specialist, but enough to stock up on the tool and free time.

How to repair a screwdriver button if it does not work, detailed instructions

The following tools will be needed to conduct diagnostics and repair the screwdriver:

As a result of the active operation of any power tool, dirt is inevitably accumulated inside its body.

Therefore, before going to the store for a new block, you should try to clean the old. Feasted on the contacts should also be cleaned with small sandpaper. If the button is indifferent, you will have to replace the entire block.

  • We disassemble the tool case. To do this, disconnect the battery, unscrew all the screws (they can be hidden behind the decorative pads that will have to be removed).
  • Check the serviceability of the electric motor. To do this, disconnect two power wires from the control unit and connect them to the battery contacts (the engine must earn).
  • We disassemble the screwdriver button. To do this, squeeze plastic latches and disconnect the two parts of the button case.
  • We make a visual inspection of the state of the button for the presence of dirt and damage.
  • Next, you need to carefully assemble the screwdriver button, install in place and test.
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If the cleaning of the control unit did not give the result, it is necessary to replace the entire button block.

  • Disassemble the screwdriver (the process is described above);
  • Install a new button in the place of the old;
  • Connect the engine to the terminals of the buttons (compliance with polarity in this case is optional);
  • Collect a screwdriver, gently placing the wire in the case.

It is very important to choose a button for a specific screwdriver model, because with all the external similarity and visual accordance, the part may not stand in the grooves. As a rule, new buttons are sold complete with battery terminals and transistor.

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How to repair a screw.With a screw button with your own hands?

On the example of a screwdriver Skil 2007 Consider the repair of its power button.

How to eliminate its main frequently encountered disease. Self.Propelled?

Let’s take a closer look at the article below.

By purchasing a screw.Off Skil 2007, you are more likely to receive this disease, which, in principle, is solved. I have a spontaneous rotation in a screwdriver appeared after 3 weeks and since it was under warranty, I naturally did not think for long and gave it to the repairs under the guarantee. They made it quickly in a few days, in the service I found out that these screwdrivers often fails the launch button, and as a result of which self.Propelled. After the repair, the screwdriver worked normally about the same amount of time, and then everything repeated again. When a breakdown happened, I was in my business in Orenburg and therefore turned to the service center for repair there. This time the repair of the screwdriver turned out to be better or as it seems to me just got a better start button, because then the screwdriver worked for more than a year without problems, and at the same time I worked for them a lot.

The next time everything was repeated, the screwdriver was no longer under warranty and I decided for myself that I would do it myself. And I’ll look at one thing, what’s the cause of the self.Propelled. Dismantling of the screwdriver itself does not cause any problems, just unscrew the screwdriver on the perimeter with a cross. Inside you will not see something complicated. There is an engine with a gearbox, a button and two wires that go from the contacts where the battery of the button moving to the button to the engine is inserted to the button and two wires. If you want to go in a simpler way, then just buy a new button that costs about 300 r. And just reinforce the wires going from the engine to the button, and the wires from the button to the connector are included. Well, after checking the button by connecting the battery, if everything works, then collect a screwdriver in the reverse order. And Skil 2007 screwdriver is ready to work.

But there is a second option for repairing a screwdriver. This is the repair of the very button itself. Why did I talk about such a development event as the repair of the button? Yes, because when I turned to the service center with a request to sell my button, I received the answer that they ended and will not be earlier than in a week. And the screwdriver, as luck would have it, was very necessary for work not in a week, but tomorrow. Searches in other stores and other places were unsuccessful and I decided to make out and try to make the button on my own.

In order to disassemble the button case, you need to remove the pressure of the red mechanism of the red color, this must be done carefully so as not to damage the base for which it is dressed. It is best to shoot around the axis and at the same time pull a little over.

Now you need to remove the protective cover of the button, for this you will need a knife and a flat screwdriver. Podging in turn and pushing the latches, in those places where the arrows in the photo indicate, we remove the lid and our gaze appears the reversal compartment, but the mechanism of turning on the screwdriver is not yet available.

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disassemble, bosch, screwdriver, button, elements, power

Now you have to use the soldering iron and solder two elements from each other, as shown in the figure. And now, slowly, we pull out the element under the number 1, which is located on top, after which you can safely remove the cover of the closing coat of turning on the screwdriver.

Do.It.Yourself screwdriver repair

To eliminate most malfunctions of the screwdriver, it requires disassembly, t. E. Removing the case and disconnecting the main nodes from each other.

How to make out a screwdriver

Shurovyrt is disassembled in the following sequence:

The screwdriver body consists of two parts connected by a rather large number of screws. In order to disassemble it, you need to find all the mounting places

Bosch GSR Lithium-Ion Cordless Drill Driver Opening/ Repair and Look Inside

  • Remove its upper part.
  • Take out the contents.
  • Disconnect the button.

The screwdriver button is a single whole with the powerage mechanism, which is connected to the engine, so when separating the button from the socket on the body, you must be careful not to tear the wires

In order to disconnect the screwdriver gearbox from its engine, it is necessary to unscrew four screws located at the contact site of two plastic casings

Repair of the cartridge

Cartridges in different models of screwdrivers may be slightly different from each other. They can be attached to the shaft in three ways:

To determine the method of fastening the cartridge, you need to read the inscription on its sleeve:

If the cartridge is threaded, the following actions must be performed:

  • Eliminate the fists of the cartridge.
  • If there is a screw inside, twist it clockwise (the screw has the left thread).
  • Take a hexagonal M-shaped key size of 10 mm.
  • Insert the short edge into the cartridge and tighten tightly in fists.
  • At low speeds, start and immediately turn off the screwdriver so that the long edge of the hexagon hit the table. Instead of turning on the device, you can simply hit the key with a hammer. The thread will move and the cartridge will get out.

In order to remove the cartridge, you need to clamp it with a hexagonal key and start the engine at low speeds until the key hit the table

If these methods do not help, disassemble the screwdriver and remove the gearbox assembly. Take the M-shaped tubular key (most often at 19 ”) and unscrew the cartridge by holding the gearbox bolts on the back of the key head of the key. It will give the necessary emphasis with which the cartridge can be unscrewed with a hand.

To disassemble the cartridge, you need to remove the plug at its base. The plastic plug is neatly packed with a knife. Metal. Knocked out by the beat of the hammer at the base of the cartridge:

  • Take a large bolt, insert it into the cartridge and slightly press it for centering. The bolt head should protrude two to three centimeters over the cartridge.
  • Ham with a hammer on the bolt head. The cartridge will jump out of the case.
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Common cartridge malfunctions:

To clarify the reasons and eliminate them, follow the following actions:

  • Disassemble the cartridge.
  • Remove the conical nut, which consists of two parts.
  • Remove the clamping fists.
  • Check the condition of the thread on the nut and on the fists, replace faulty parts.

In the process of working on fists or conical nut, which controls their work, carving can be developed or crumble, then these parts must be replaced

It should be noted that such details as fists or conical nut are unlikely to be able to buy separately, they can only be removed from another similar cartridge. Therefore, in most cases, a faulty cartridge is best attributed to the workshop, and even easier to buy and put a new. To buy a new cartridge, be sure to take a screw and a dismantled old cartridge with you to the Shurovyrt store.

Battery repair

Three types of batteries are used in screwdrivers:

  • Nickel-cadmium (Ni-CD). They can be charged very many times, but they have a memory effect. If you do not wait for complete discharge and begin to charge the battery, then gradually its capacity will decrease. Swing the battery before the first use. Discharge three times and charge it so that the capacity becomes maximum.
  • Nickel-metal-gidrid (Ni-MH). A feature of such batteries is a less pronounced memory effect, but a high current of self.Discharge. If you intend to store a screwdriver without using for more than a month, be sure to completely charge its battery.
  • Li-Ion (Li-Ion). These batteries quickly charge, but do not tolerate frosts. They can be charged when convenient.

Store all types of batteries is necessary separately from the screwdriver and charger. With a long.Term non.Use, they need to be recharged once a month.

Cordless Screwdriver or Cordless Drill?

If the battery does not hold the charge, disassemble it. It consists of several nutritional elements. Check the voltage in each. The value of the working voltage is indicated on the case (it is the same for all elements). Replace non.Working batteries.

Sizes and how to decipher them

Several sizes are used. They need to know them in order to choose the right product for replacement. Marking is applied to the cone.

Consider an example: 1. 6 in 7. Numbers 1-6-the range of sizes of the shank, which can be installed on the product. In this case, it is expressed in millimeters. At 10 and further to 45 indicate the caliber of the cone. There are 9 calibers in total.

Marking can have this type: 1. 13 m 12×1.4. The numbers to the letter designation. The range of shanks of the shank, after it. The parameters of the thread. The values ​​are indicated in millimeters or inches.

Boot battery drill

Consider another example: 4. 15 mm ½. 22 UF. The inscription suggests that you can use bats with a diameter of 4 to 15 mm, ½ is the size of the thread in inches, 22. The number of threads (threaded turns) in an inch.

How to disassemble the battery

The number of fasteners from below can vary from four to six. Often unscrewed with a cross screwdriver. Screws are different lengths. This should be taken into account so as not to confuse them when assembling. In some versions you can find an integral case. Then inspect the entire surface and find a special strip along which the factory gluing occurs. Next, you need to take a strong knife and insert it into the groove, swaying slightly to the sides. If the body penetrates the upper and lower parts, the autopsy passed successfully. Not a problem if this happens behind the groove. All differences can be glued with a good superglue. There are several parts for the battery in the upper part of the case. The voltage is measured on each of these components, which, of course, should be within the optimal level. If the difference exceeds 10%, this battery must be replaced.

Each manufacturer seeks to create a tool that will be as convenient as possible in this process, creating a wide range of models. From basic screwdrivers to professional samples.

Hitachi screwdrivers prefer an excellent quality of assembly and the practicality of their tools. The Bosch model of the battery screwdrivers is practically no different from analogues with a cord for connecting up to 220 V. Equipped with modes switches, as well as a power button and an accelerator, Bosch screwdrivers. Great solution for home and professional use. In addition, brands such as Interskol, Makita, CMI, BISON have proven themselves well.

Cartridge. This is a mobile metal cylinder in a screwdriver that is attached to the shaft. This is one of the most important elements that retains the working bit. The cartridge is constantly spinning, so it quickly wears out and becomes unsuitable for twisting. In such cases, it will have to be replaced.

Do.It.Yourself screwdriver repair

To eliminate most malfunctions of the screwdriver, it requires disassembly, t. E. Removing the case and disconnecting the main nodes from each other.

How to make out a screwdriver

Shurovyrt is disassembled in the following sequence:

The screwdriver body consists of two parts connected by a rather large number of screws. In order to disassemble it, you need to find all the mounting places

The screwdriver button is a single whole with the powerage mechanism, which is connected to the engine, so when separating the button from the socket on the body, you must be careful not to tear the wires

In order to disconnect the screwdriver gearbox from its engine, it is necessary to unscrew four screws located at the contact site of two plastic casings

Repair of the cartridge

Cartridges in different models of screwdrivers may be slightly different from each other. They can be attached to the shaft in three ways:

To determine the method of fastening the cartridge, you need to read the inscription on its sleeve:

  • Marking “1-6 B10” means Morse cone. Nozzles with a shank diameter from 1 to 6 millimeters are used. Coding “B10” indicates the size of the cone. Take a hammer and knock out the cartridge with blows on the body;
  • Inscriptions like “1.0–11 m12x1.2” or “2–13 mm ½-20 UF” mean metric and inch thread.

Bosch DIY Cordless Screwdriver: IXO 5

If the cartridge is threaded, the following actions must be performed:

  • Eliminate the fists of the cartridge.
  • If there is a screw inside, twist it clockwise (the screw has the left thread).
  • Take a hexagonal M-shaped key size of 10 mm.
  • Insert the short edge into the cartridge and tighten tightly in fists.
  • At low speeds, start and immediately turn off the screwdriver so that the long edge of the hexagon hit the table. Instead of turning on the device, you can simply hit the key with a hammer. The thread will move and the cartridge will get out.

In order to remove the cartridge, you need to clamp it with a hexagonal key and start the engine at low speeds until the key hit the table

If these methods do not help, disassemble the screwdriver and remove the gearbox assembly. Take the M-shaped tubular key (most often at 19 ”) and unscrew the cartridge by holding the gearbox bolts on the back of the key head of the key. It will give the necessary emphasis with which the cartridge can be unscrewed with a hand.

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To disassemble the cartridge, you need to remove the plug at its base. The plastic plug is neatly packed with a knife. Metal. Knocked out by the beat of the hammer at the base of the cartridge:

  • Take a large bolt, insert it into the cartridge and slightly press it for centering. The bolt head should protrude two to three centimeters over the cartridge.
  • Ham with a hammer on the bolt head. The cartridge will jump out of the case.

Common cartridge malfunctions:

To clarify the reasons and eliminate them, follow the following actions:

  • Disassemble the cartridge.
  • Remove the conical nut, which consists of two parts.
  • Remove the clamping fists.
  • Check the condition of the thread on the nut and on the fists, replace faulty parts.

In the process of working on fists or conical nut, which controls their work, carving can be developed or crumble, then these parts must be replaced

It should be noted that such details as fists or conical nut are unlikely to be able to buy separately, they can only be removed from another similar cartridge. Therefore, in most cases, a faulty cartridge is best attributed to the workshop, and even easier to buy and put a new. To buy a new cartridge, be sure to take a screw and a dismantled old cartridge with you to the Shurovyrt store.

Battery repair

Three types of batteries are used in screwdrivers:

  • Nickel-cadmium (Ni-CD). They can be charged very many times, but they have a memory effect. If you do not wait for complete discharge and begin to charge the battery, then gradually its capacity will decrease. Swing the battery before the first use. Discharge three times and charge it so that the capacity becomes maximum.
  • Nickel-metal-gidrid (Ni-MH). A feature of such batteries is a less pronounced memory effect, but a high current of self.Discharge. If you intend to store a screwdriver without using for more than a month, be sure to completely charge its battery.
  • Li-Ion (Li-Ion). These batteries quickly charge, but do not tolerate frosts. They can be charged when convenient.

Store all types of batteries is necessary separately from the screwdriver and charger. With a long.Term non.Use, they need to be recharged once a month.

If the battery does not hold the charge, disassemble it. It consists of several nutritional elements. Check the voltage in each. The value of the working voltage is indicated on the case (it is the same for all elements). Replace non.Working batteries.

The screwdriver of the screwdriver consists of several elements, calling which you can find and replace those that failed

If the battery is not removed, most likely the fixing button jam. It is necessary to remove the upper part of the case, disconnect the battery, disassemble it and adjust the button.

Repair of the charger

If you disassemble the charger of the screwdriver, then we will see a lowering transformer and a fee. Through the network wire, the voltage enters the primary winding of the transformer. The heat.Guide is turned on sequentially with a network winding, so it overheats first and protects the winding from the cliff. From the secondary winding, the voltage passes to the diode bridge. If charging passes the current, then yellowness forms around the diodes. The transformer windings overheat, diodes break through.

Electronic adjustment of the rotation speed of a screwdriver

Adjust the speed of rotation of the screwdriver nozzle is possible mechanically or automatically. Automatic revolutions are used using the processor. You can set the desired operation parameters using a speed.To.Speed tolerate. It is located on top of the case. In many models, the speed adjustment is implemented through the start button. The stronger the pressure of the finger on it, the higher the speed.

After reading this article, you received information on how to assemble a control control regulator with your own hands, got acquainted with the design of the force regulator, dealt with the function of electronic adjustment of the tool. We hope the article was useful to you.

Screwdriver button, control element, which is responsible for several functions of the tool. In this small and very important control unit, combined: the power button, the switch of the rotation of the electric motor, the device of the smooth start and the speed of the working tool.

Each of these adjustment and inclusion devices built into the screwdriver button, in itself, separately, fully and correctly cannot work. The only structural element of the rotation switch (reverse) is practically made as a separate functional block.

In most drifts and screwdrivers that have shopping and markets for the Russian power tool, the start button has the designation Jin Ding EA-12/Z1 DC16-18V. Judging by its reliability in work, the manufacturer, most likely China.

The general device of the screwdriver button is as follows: the case assembled from three compartments, in which the working nodes of the entire structure are actually located. In the lower part of the unit is the control unit control unit and speed of the electric motor, and hence the working tool fixed in the cartridge.

In the middle part of the structure is the inclusion button, the speed of rotation of the electric motor depends on the magnitude of its movement into the movement. Button, a purely mechanical structure of the structure, moving the alternating resistor of the electronic circuit regulator.

In the upper part is the switch of the rotation of the electric motor. The direction of rotation of the electric motor depends on the polarity of the voltage supplied to it. Collector DC Elector has one winding. The winding is located on the rotating part of the electric motor called the anchor.

In order to create a rotating torchor of the rotor, its winding is placed in the magnetic field of two constant magnets located inside the stationary part of the electric motor called the stator.Changing the direction of the current flowing through the anchor winding, using the switching lever, the direction of rotation is changed.

By raising the fastener located on the back of the button, you can unfasten the switching mechanism and separate it from the button. Two power wires, plus and minus come from the lower part of the button. Changing the rotating drum switch, the connection of these wires to the beginning, or the end of the anchor winding, the direction of rotation of the electric motor changes.

The lower part, where all the electronic filling is collected, is the most interesting node. It collected an electronic scheme of a wide-pulse regulator, which controls the power transistor. This transistor, depending on the position of the control resistor of the PWM regulator, opens the power transistor of the screwdriver through which a certain amount of electricity flows to the electric motor winding. The speed of rotation of the rotation of the screwdriver of the screwdriver depends on the size of the opening of this transistor, and hence the value of the current.

This is how the screwdriver button, or a drill having a smooth start, works.