What lubricant to use for electric screwdriver. Electric screwdriver “Makita”

Cyatim in the gearbox of an electric screwdriver

Electric screwdriver, like another mechanism, needs to maintain and care. Sometimes users forget about such a simple procedure as lubricating the details of the tool. This article will tell you what grease to lubricate an electric screwdriver and how to do it right.

There is nothing complicated in the electrical screwdriver device. The main thing, with the subsequent disassembly of the instrument, remember the position of the details:

  • Frame. Often it is made in the shape of a pistol. This is due to the convenience of operation and the ability to work at different angles. The case itself is made of plastic. It costs inexpensively and has a slight weight.
  • Cartridge. Since electric screwdriver is used for twisting and drilling, a cartridge is installed on it. Depending on the model, it can be quick.Collapsible or selfless. It is located at the end of the spindle wound on the thread.
  • Adjustable rotation clutch. So that the electric screwdriver does not overheat during operation, a rotation clutch with adjustment is installed on it. In the case of excessive effort on the tool, the rattle is triggered and the cartridge stops working.
  • Engine. All models of screwdrivers are equipped with engines. It can be brush and brilliant motors. The engine is a hollow cylinder, inside which there is a rotor and magnets. The rotor stands on small brass supports. On the rotor itself, around the circle, grooves are located. They have a wire with increased permeability. In collector engines, the brushes are made of graphite or coal. There are no brushes in the biases.
  • Gearbox. An important mechanism of electrical screwdriver. Located in a separate building. Planetary gearbox is a few gears, which have a total axis of rotation. Many are interested in which gearbox is in an electric screwdriver and what material is made of. In inexpensive models, many details are made of plastic, which is fraught with a quick failure. In professional units, the gearbox and other elements are completely metal. This significantly reduces the risk of breakdown.

Electric screwdriver is powerful: for wireless models. From batteries. For network tools. From a power source 220 volts.

What lubricant grease the electrical screwdriver gearbox

Corner grinder Bosch Gws 1000 in work. Photos all tools.RU

In this article, we consider the issue of lubricant angular grinding in all details and from different sides. If you are looking for where to buy a lubricant, is it worth doing with your own hands, how to lubricate or where to find a service center for maintenance, then please follow the links.

About the essence of the problem

Pioneers of operation of the first angular grinder, who began to act in the USSR from the Bulgarian People’s Republic in the 70s of the twentieth century, will be eager to talk about their meetings with a corner grinder. “The machine was good, everyone is good. But only breaking very.»Yes, this is a fact.

Corner grinder received by a co-master worker, for example, a chopper of steel casting, worked in three shifts at maximum loads and rarely lived up to a year. The reason for the failure, or even emergency breakdown of scarce grinders, was one general. The wear of the gearbox with the destruction of the gears.

The repairmen of those years recall: “You will break it, the engine is like a new one, at least where, the brushes are intact, and the gearbox is the end”

In the instructions for the operation of the first Bulgarians in pure Russian it was said: “Conduct regular maintenance using the recommended materials for lubricating bearings and gear, see see. List”.

The trouble was that the “recommended materials” were even greater shortage than the grinder itself.

When you need to replace the lubrication

What is the state of my (mine) angular grinder and what service she (it) needs? How to determine it? This question worries every normal owner of a single corner grinder and every normal owner of the enterprise, on the balance of which a whole park of manual power tools “hang”.

Any user of the corner grind.

Having worked with a corner grinder for several minutes, cutting off something serious, such as a strip “100 to 4”, tear off the circle from the workpiece, turn off the “machine” and listen.

lubricant, electric, screwdriver, makita
  • The rotation of the circle slows down smoothly, the characteristic noise of the corner grinder becomes quieter, and finally the spindle stops, having made several almost soundless turns before. The gearbox body is barely warm. You can confidently put in the column “grease” of your “diagnostic card” and feel free to boldly clamp a new piece of iron in Titsa.
  • Slowing rotation is uneven, with “rifts”, the spindle stops without “run”. The gearbox body is very warm, almost hot. Summary: gearbox requires replenishment or replacement of lubrication.
  • The speed of rotation of the circle fixed on the spindle drops sharply. Characteristic rattling and mechanical knock are heard. Spindle stops the impetus, sometimes with the sound of a blow. The gearbox body is hot, the hand barely tolerates. Diagnosis: Perhaps it is no longer required lubrication, but a reducer repair with a replacement of gears.

Corner grinder Makita Ga 5030 with a circle. Photos all tools.RU

The process of wear of the gear of the gearbox with a lack of lubrication. “oil starvation” develops an avalanche.Like:

  • The noise when working intensifies and increases in proportion to the wear of the teeth in thickness. Wear products, mixing with grease, worsen its properties.
  • Wear reaches such a value that when changes in the load (torque or rotation frequency), the tops of the tops of the teeth arise against each other. Lubricant mixed with wear products does not perform its functions.
  • With a sharp, peak overload of the “cars” of the top of worn teeth, finally meet. The lubricant of lubrication from the corner’s corners that has lost the protective properties observes how the teeth of the sliding gear are cut off, the teeth of the driven are painted.
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The autopsy will show the emergency destruction of the gearbox caused by a lack of lubrication.

Refurbished and repaired Makita DF012D electric screwdriver

Frequency of replacement

Many sources (manufacturers of manual power tools, lubricants, authors of instructions and good tips) recommend replacing the lubricant in gearboxes in angular grinders, drills, peorators “at least once a year, or more often, depending on the intensity of operation”.

Corner grinder of a professional class, capable, as stated in its operating manual, “work with full load for a long time and without a break”, will simply not live a year without lubrication.

Professional corner grinder Bosch GWS 22-230 H requires frequent lubrication. Photo 220 volts

Corner grinder stored on a shelf in a garage (or in a barn in the country), it takes more than one year without breakdowns, if only moisture would not get into the gearbox and did not do its own business there.

Decide for yourself whether to lubricate or not, focusing “on the intensity of operation” and on the results of the diagnosis, you and the.

Characteristics of lubricants

Lubrication for gearboxes of corner grinding machines should have a number of properties, sometimes contradictory in order to fully meet their purpose.

  • High thermal stability, the ability to maintain lubricating properties in a wide range of temperatures;
  • Significant dynamic viscosity at non.Working temperatures that prevent flowing from the gearbox;
  • Low kinematic viscosity at 120-140 O C, normal operating temperature in gearing during prolonged operation;
  • High surface activity, providing the strength of the oil film on the rubbing surfaces;
  • Small volatility and resistance to aging. Lubrication should not dry out and lose properties for a long time.
  • High inconceive properties, the presence of friction modifiers in. These indicators are especially important in gearboxes with hypoid hooking.
  • Compatibility with seals, lack of aggressiveness for aluminum alloys (gearbox) and copper alloy (spindle bearings in some models);

Another important quality of lubrication for the gearbox of the corner grinding is. It should be moisture.Resistant and not hygroscopic, that is, not absorb water and not enter into reaction with it.

Lubrication of domestic manufacturers for bearings and gearboxes of Bulgarians

With an increase in for foreign lubricants, especially the lubricants of domestic manufacturers have become in demand.

Russian manufacturers of lubricants have learned to produce high.Quality lubricants suitable for any tools.

Lubricants have been developed for gearboxes of grinders, peorators, drums.

Particularly popular is the products of Nanotek metal plaque Electra. The manufactured series of lubricants with this company allows you to choose the lubricant you need for each assembly

Lubrication for bearings angular grinder

Three bearings are installed in the design of the angle grinding machine. Two bearings are installed on the rotor of the tool, one bearing is mounted on the shaft of a led scooter of the gear of a larger diameter.

Bearings already filled with grease are used in the corner grinder. But from improper operation, overheating of the lubricant tool.

How to choose the right lubricant for bearings of corner grinders?

Lubrication for bearings should satisfy the following requirements:

  • Increase sliding;
  • Reduce friction between the component parts of the parts;
  • Evenly distribute heat and perform the role of coolant;
  • Prevent corrosion;
  • Protect against pollution and dust from entering;
  • Work in the required temperature range up to 150C;
lubricant, electric, screwdriver, makita

The operating conditions of the electric motor bearings differ from the working conditions of the gearbox bearing not only due to temperature requirements, but also due to operating modes, load modes, frequency and speed of rotation.

The lubricant for bearings of the electric motor should have protective properties that prevent the ingress of dirt, dust and moisture on the parts of the bearing.

The Russian market presents a wide range of foreign lubricants intended for bearings operating in different conditions. But their cost makes you look for cheaper, not inferior in quality, domestic lubricants.

From domestic lubricants, we recommend that you pay attention to the lubricants of the CITIMI-221, VNIINP-246 (GOST 18852-73), VNIINP-235. Lithium lubricants have proven themselves well. Lithium lubricants have proven themselves well

Lithium lubricants have proven themselves well.

With high water.Repellent properties, they have a wide temperature range. The role of the thickener in them is performed by organic and inorganic substances. For closed bearings, it is best to use the lubricants of the CITIMI-203, VNIINP-242.

Of the pigment lubricants for the electric motor bearings, VNIIIMP-246 and dark purple ointment VNIINP-235 were distributed. The first lubricant due to the high price is less common than the second.

In today’s Russian market, domestic manufacturers of lubricants are represented in a wide range of products.

Lubricant for gearbox angular grind

The lubricant for the gearbox of the corner grinder differs from the lubricant for bearings with the main feature. Increased adhesion. She should firmly hold on the gearbox tooths with a large rotation.

In general, the process of lubrication of the gearbox in angle grinding machines occurs due to small spraying of the lubricant and its suspension. The gearbox works, as it were, in oil fog. Therefore, lubrication requirements for gearboxes are slightly different.

In addition to increased adhesion, lubrication for gearboxes should have high heat resistance and not melt at elevated temperatures.

DIY lubrication for gearbox with your own hands

But is it possible to make a lubricant for a gearplay gearbox with your own hands

And there is an affirmative answer to this question.

Since the main technical characteristics of the lubricants for gearboxes are presented above the angular grinding grinding, they can be taken as the basis for making lubrication of the desired characteristics with their own hands.

The basis of homemade lubrication for gearboxes should be a lubricant with high adhesion. She should hold tightly on contacting details.

High adhesion has a lubricant for cries. Shrus is a hinge in a front.Wheel drive car, working in conditions of increased contamination, shock loads, temperature fluctuations and humidity.

Having taken as the basis, the lubricant for the crows, it is necessary to add liquid lubricant (MS-20) to give a lot of the desired consistency. MS-20 oil must be served drops, thoroughly kneading the mass with a homemade mixer.

Good results are given by a mixture of lubrication of CITIMI-221 and TAD-17, where the basis is cyatim.

Do.It.Yourself repair

In a home workshop, it is not so difficult to repair a gearbox. Repair is reduced to the analysis of the unit for separate parts, checking the integrity of their design, purging and lubrication, followed by reverse assembly. The process is divided into the following stages:

  • The separation of the gearbox from the engine and extract (usually with the cartridge) from the casing of an electric screwdriver.
  • Writing the body and removing a fixing washer.
  • Serial removal of satellite gears and gear plates (2 or 3, depending on the structure).
  • Extracting the ring gear and checking the balls-bearing (they can ride throughout the seal, but should not roll out beyond its limits).
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After extracting all the parts, they must be cleaned from the “old lubricant”, wipe dry and make sure that they are not damaged.

Then the masters recommend folding them in the reverse order “dry” and make sure that when the satellites rotate the cartridge spindle also rotates. If the rotation is carried out without scrolling, then it can be assembled back.

First, bearings are placed in the recesses in the housing, on which the ring gear is installed. Then, one at a time, put the gear plates with satellites installed on them and laid on top of the fixing washer.

What lubricant for electrical screwdriver to choose, how to use it. All the information can be obtained in specialized centers. Friends can give good advice. You can learn more about lubricants for electric screwdriver from reviews and user reviews.

Please tell me what lubricant for the gearbox you need to rummage for Bosch screwdrivers!

Usually at this point “ends” either the motor or the battery. Or all at once

PS. IMHO, you can with any lubric.Based lubricant. Better imported.

In my instructions for the screwdriver Dewalt 981, it is written. Nothing needs to be lubricated, the lubricant is laid for the entire period of the tool of the tool. I think Bosch also has something like that too.

Serg wrote: In the instructions for the screwdriver Dewalt 981 it says. Nothing needs to be lubricated, the lubricant is laid for the entire period of the tool of the tool.

Serg wrote: I think Bosch also has something like that too.

But Atlas Copco in the Service Manual, the lubricant replacement is regulated: 10 grams of a certain LDS-18 are laid.

KVOST wrote: But Atlas Copco in the Service Manual Substitution is regulated: 10 grams of a certain LDS-18 is laid.

What is written in the Dewalt service I did not read. There the engine can be changed when it is worn out, probably at this moment and the gearbox is lubricated

Serg wrote: what is written in the Dewalt service I did not read. There the engine can be changed when it is worn out, probably at this moment and the gearbox is lubricated

Home workshop: how to repair a gearbox of an electric screwdriver?

Any tool, regardless of the model and brand, sooner or later undergoes breakdowns. Electric screwdriver is no exception: individual parts and nodes wear out over time, and without proper care or under force majeure may refuse.

The main functional load during the operation of the tool is distributed through the gearbox between the engine and the cartridge, so if something happens to the gearbox, the work will become. In order not to spend money on the services of the repair service, it is enough to use the advice of the masters to restore the work of the unit yourself.

Repair of electric screwdriver “Makita

Repair button of the electric screwdriver “Makita

The turning on-off button is a complex electronic mechanism. It consists of several components of its elements:

When repairing the button, first you need to disassemble it by promoting the screw screws and disconnecting the battery. After that, you must check the connections and contacts for the presence of contaminants, clean them. If the stripping of contacts did not help to eliminate the problem, the button should be replaced in the collection.

Repair of the charger of an electric screwdriverMakita

When repairing a charger, it is necessary to promote the screws fastening the cover covers. Inside there is a printed circuit board with contacts. First you need to check the transformer by the tester. To do this, measure the voltage at the output. Then you should call the cable to exclude its fracture. Then the primary and secondary windings of the transformer and the fuse are checked. You need to collect it in the reverse order.

Repair of the battery of the electric screwdriver “Makita

When repairing the battery with a cross with a screwdriver, spin the screws of the body mounting. There are several cans inside the case. With the help of a visual inspection, it is necessary to inspect them and identify geometry disorders, such as bloating, for example. We test the banks using a multimeter for the presence of a residual charge. In its absence, the bank is replaced by a new.

Repair of the electric screwdriver gearbox “Makita” (scheme)

To remove the gearbox, you need to disassemble the case by unscrewing the screws with a cross screwdriver. We take out the start button, the reverse switch button, disconnect the engine mounting bolts to the gearbox. Then you need to remove the contents of the gearbox (various gears), the puck of the speed switch

When examining an empty reducer, separate attention should be paid to the teeth located around the circumference of the gearbox body. In the case of their oststability, the gearbox will not be able to fulfill its function: the speed switch will not work incorrectly

To restore teeth, it is necessary to use small bolts, inserting them into the place of original plastic. Collect the gearbox in the reverse order. The reducer diagram is shown in the figure below. It presents the general diagram of the gearbox.

About the essence of the problem

Pioneers of operation of the first angular grinder, who began to act in the USSR from the Bulgarian People’s Republic in the 70s of the twentieth century, will be eager to talk about their meetings with a corner grinder. “The machine was good, everyone is good. But only breaking very.»Yes, this is a fact. Corner grinder received by a co-master worker, for example, a chopper of steel casting, worked in three shifts at maximum loads and rarely lived up to a year. The reason for the failure, or even emergency breakdown of scarce grinders, was one general. The wear of the gearbox with the destruction of the gears. The repairmen of those years recall: “You will break it, the engine is like a new one, at least where, the brushes are intact, and the gearbox is the end”

In the instructions for the operation of the first Bulgarians in pure Russian it was said: “Conduct regular maintenance using the recommended materials for lubricating bearings and gear, see see. List”.

The trouble was that the “recommended materials” were even greater shortage than the grinder itself.

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What a lubricant in the gearbox is a drill

The lubricant for the peorater allows you to extend its service life and make its use more effective.

So that the effect of lubrication brings the expected results, when choosing it, you should take into account not only the properties of the lubricant, and the technical characteristics of the device that is planned to use it.

When choosing how to lubricate the peorator, you need to imply the fact that different parts of such equipment need different types of lubricants.

There is an opinion what is really that the presence of a lubricant on the mobile elements of the penetrator allows you to postpone its shift for several years. Although this worldview is fundamentally incorrect, and if you set a goal to change it, it’s enough to get acquainted with the principle by which lubricants work.

The lubricant, including the pedorator used for a viscous substance, the use of which is necessary to reduce the friction coefficient between the structural elements of the mechanical device moving relative to themselves.

Such a macar, lubricant only reduces friction, but does not save it 100 %, therefore the lubricant is evenly saturated with the products of wear of rubbing parts. Iron dust.

For a reason not only the viscosity of the lubricant changes, and he himself becomes a prerequisite for more saturated wear of equipment.

It should be immediately noted that specifically viscosity is a more fundamental parameter, which needs to be navigated, choosing a lubricant of a certain type.

Over time, the lubricant is polluted and loses its characteristics

How to correctly choose a lubricant for a specific model of the penetrator? It is immediately necessary to take into account the advice of the manufacturer of the equipment, which will certainly shows both the required type of lubricant and the frequency of its change.

In particular, it is fundamentally focus on such advice, yet the warranty period for the peorator has not expired.

For which the design of the device is intended for you, you cannot use the manufacturer’s warranty responsibilities.

Probably the owners of the penetrators, after the expiration of the warranty period, begin to use not branded compositions for lubrication, but their cheaper analogues. Lilest in other words of solidol. This, such lubricants are not able to harm the elements of the structure of the penetrator, but, using them, it should be understood that they should make their change much more often.

The peorater gearbox is a more complicated device in design, because it asks for special attention to himself.

It is not so difficult to make lubrication of the peorater gearbox, however, independent assembly for the previously disassembled node causes severe difficulties.

If the peorator is still under warranty, then with the question of lubricating its gearbox, it is most perfect for contacting a specialized workshop that provides post.Sales maintenance of such equipment.

The detailed diagram of the device of your peorater will help to understand the mechanism and correctly assemble the tool

On the contrary, the poosa of which you are, the discs or cassettes of warranty obligations or the warranty period for your equipment has already expired, and the authorized service center is quite distant, there is an option to lubricate the gearbox without the help of others, observing the highest accuracy and vigilance. For this purpose, you will need:

  • A set of locksmith tools with which you will collect and disassemble the peorater gearbox;
  • Unsuccessful rags;
  • The composition itself for lubrication.

“Native” lubricant for the gearbox Makita P-08361. Refueling with the initial assembly of the tool and is recommended for maintenance

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It is better if a corporate remedy specially created for equipment of a certain brand is a lubricant. So, you will like a lubricant for the Makita peorator or a lubricant for the Bosch peorator. If you do not have branded lubricant, but it does not come out to purchase it, cheap Russian lubricants are also used.

It is important that you have an annotation on the peorator, which you are going to lubricate. What, if you are the owner of the Makita or Bosch peorator, this is suitable for an annotation for the technique of specifically these brands.

Our client remains the parts of the gearbox should be cleaned absolutely from old lubricant

Having intently examined the annotation on the peorator, proceed to the lubrication procedure of its gearbox.

  • Before disassembling, the peorator should be perfectly cleaned of dust.
  • When performing the disassembly of the gearbox, it is better to remember immediately how the elements of its design are placed here. At the same time, it is necessary to imply that to disassemble and lubricate the gearbox immediately at the end of the use of the peorater is not recommended. This is explained by the fact that still hot parts of the gearbox when they get a cool lubricant for them, of course, lose their physical properties.
  • If something remains to make our client, the components of the gearbox are extracted from its body, they should be painfully washed with gasoline or spindle oil and wiped dry.
  • The inside of the gearbox body also needs to be washed, wiped (if possible) and let it dry completely.
  • When disassembling the peorator gearbox, of course, to study that there is no lubricant on some elements of its design. So this is only that such details do not need lubrication and it is not required to apply it there.
  • As it is written earlier, it is better to use proprietary lubricant for the gearbox of the drill as it is also called the peorater, which differs a number of advantages. Specifically, branded lubricants retain their initial properties significantly longer, so using them there is an option significantly more often. Already today, the branded lubricant has such a fundamental quality as water resistance, therefore it perfectly protects the iron details of the peorator from water exposure and, accordingly, from corrosion. How a good candidate for proprietary lubricants for the peorater gearbox what it is also called drills used Metabo oil, the price of which is fully available.
  • After lubrication of all parts, the gearbox must be carefully assembled, observing the flip sequence.
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