Whether It Is Necessary To Lubricate The Drill Bit

How to choose a drill for a hammer drill: 5 tips
How to choose the right and really high quality rotary hammer drill? What should you pay attention to when buying? This article will help you. Read on MOYO.Ua!

How to choose a drill for a hammer drill: 5 tips

Punch drills are officially produced by not so many companies. But in any building supermarket, you can find dozens of brands offering accessories for punchers. It is not worth buying the first set that comes across, focusing on the advice of the seller. It may well be of poor quality, or even completely fake.

In order not to waste money, it is better to first familiarize yourself with the key parameters and functional characteristics of the drills, read the opinions of users and select a tool that has earned the trust of specialists. So how to choose a drill for a rock drill?

What are the drill bits for a hammer drill

Before buying, you should compile for yourself a short list of parameters that are really important for understanding which drill for a hammer drill you need to choose:

Drill sizes / dia. This indicator depends on the type of work and the material being processed;

Shank. There are several standard sizes. It is important that it is compatible with the existing instrument;

Manufacturers. There are first-class drills produced by renowned manufacturers. They are not cheap, but reliable and durable. It is worth purchasing them for responsible and professional work. If you have to drill several holes, then it is better to find cheaper components. There are companies that offer inexpensive consumables for power tools;

Soldering. At the very tip of the drill there is a soldering from a hard special alloy. This tip increases the drilling speed and keeps the tool longer;

Types of grooves. The helical grooves on the bore can be of different types. For a professional unit, they are made with a ledge at the bottom or under a bevel. In everyday life, the grooves are semicircular.

The main parameter by which the nozzle must be selected is the shank. It is called the lower part of the rod, clamped in the tool holder. They are released according to several standards:

SDS-plus. This size is 10 mm in diameter and recessed into a 4 mm socket, such as Bosch SDS-Plus 12×165. It is used for household appliances of low power;

SDS-max. It is used in professional high-performance tools, ∅18 mm, and the clamping depth in the chuck is 9 mm, like Bosch SDS-Max 16×400 / 540 mm;

SDS-top. Practically not used (except for some old Bosch models) format with a diameter of 14 mm;

SDS-quick. Applies exclusively to Bosch Uneo and UneoMax units, in hexagon configuration.

If it suddenly turns out that the hammer drill has an SDS-max connector, and the drill has an SDS-plus, do not worry. There are special adapters that will allow you to use a different standard size.

Whether It Is Necessary To Lubricate The Drill Bit

Important information: Which of the 2 types of rock drills is better. Vertical or horizontal?

What are the attachments

Many craftsmen value a hammer drill for its versatility. It can easily replace a drill or bump stop. You just need to insert the corresponding attachment. The set offers several types of tips:

Boers. They can be centering and traditional. The former are adapted for puncture accuracy, without breaking the hole. Traditional, cross-brazed, suitable for all materials and more suitable for chiselling.

Crowns. Ideal for wall chipping. If you need to hide the wiring or hollow out a place for an outlet, then it is better to use crowns. Varieties of crowns:

What parts and how to lubricate?

To begin with, it is worthwhile to understand that one lubricant, no matter how versatile it is, cannot indiscriminately process all the details. One type of lubricant is suitable only for the gearbox, the other for drills and drill bits. Each unit, such as the PBH 2100 RE or GBH 2-24 DRE, is supplied with an instruction manual that describes the lubrication frequency of the parts.

Before starting the lubrication procedure, the power tool must be cleaned and blown out and then wiped dry.

What and how to process:

  1. Reducer. To the question: what is it worth to lubricate the gearbox of a household or professional puncher, the answer is as follows. With a composition in the form of liquid oil. The substance is simply poured in certain quantities into a specially designated place in the shell of the device. Oil fills the gearbox housing, and during operation, all of its parts are covered with a uniform layer of grease. If there is no special hole in the power tool and you need to disassemble it in order to lubricate the gearbox, it is better to contact a specialist.
  2. Boer. It must be lubricated before each installation in the chuck. How to lubricate a perforator drill? All grooves of the nozzle are processed with a small amount of the agent. The instructions for the apparatus usually indicate the type and amount of lubricant with which the drill can be processed.
  3. Cartridge. The ponytails of the replacement drill bits must also be machined each time before installation. The amount of the drug should be strictly the same as indicated in the instructions, no more and no less. How and with what to lubricate a hammer drill chuck (a special attachment that is used to securely hold the drill), for example, HR2470 or any other? The drilling lubricant simply needs to be applied to the drill stem and then inserted into the chuck socket. And after removing the nozzle, it must be cleaned of dust and recycled oil.

And how to lubricate the piston of a perforator? Each manufacturer has its own piston lubricant. It is best to use the original one.

Elements that do not require sliding during operation (transmission clutch, core, firing pin, cylinder) do not need to be lubricated.

Design features

Such power tools are barrel and straight, mechanical and pneumatic, and depending on the size. Light, medium and heavy.

  • Core;
  • Boer;
  • Firing pin;
  • Piston;
  • Cylinder;
  • Electromagnetic coil.

There are differences in detail depending on the type of fixture. And that’s not all the details from the list. So how does a perforator, useful in construction, work? The units, in addition to the above parts, are equipped with:

In addition, such instruments have a variety of indicators and speed controls. Having dealt with the nuances of the construction of this construction tool, it’s time to move on to lubricating its individual elements.

How and what to lubricate a rotary hammer: lubricants for 6 brands

The puncher will come in handy if you need to make a hole in the wall, grind a “track” under the wires and for other construction issues. The tool will faithfully serve its owner, if you do not forget to take care of it.

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Elements such as a drill, a reducer, a cartridge require periodic processing with special equipment. How and with what to lubricate various types of rock drills? Here are the answers and nuances of processing electric devices produced by 6 well-known brands.

Which rotary hammer lubricant is best to use?

The best option is to use only branded lubricants. So that the masters do not rack their brains about how to lubricate the hammer drill, the manufacturers of these devices made sure that their assortment included special means for this.

What else can you lubricate the individual elements of the BOSCH (Bosch) rotary hammer?

The brand manufactures more than 300 types of various tools, including punchers. And there are thousands of accessories to all these devices.

To care for the “destructive” tool, the company produces the following products:

The assortment of the Japanese brand includes:

The Japanese corporation also took care of its customers and provided a wide choice of how to lubricate the Makita hammer drill.

You can use a multipurpose grease such as 042005-4A. Alternatively, use separate lubricants for specific parts of SPARKY gearboxes (042024-0A) or drills (181573-3).

A set with many Energomash models is already supplied with grease for gearboxes and tails. If there is none or the product is over, use 042005-4A universal grease.

Basically, all manufacturers of rotary hammers equip their products with branded lubricants, complete with the delivery of equipment. You can use both universal options and substances for gearboxes or drills. Many masters prefer to use ordinary lithol instead of original means, which is fundamentally wrong, because it is not resistant to moisture. This can lead to the formation of corrosion on the inside of the device. Therefore, it is worth using branded lubricants, cleaning and processing the power tool as necessary, and then it will 100% serve for more than one year.

Drill lubricant

Everything is exactly the same here. Special greases for this purpose are called. For drills. And they are also usually produced by the same firms that make rotary hammers.

In the absence of a special lubricant, you can use graphite. But it does not remove heat from the shank so well, and this is important, since sometimes during prolonged operation the shank sometimes becomes flattened, which makes it difficult to extract it later.

Lubricate the gearbox

You will need to disassemble the tool body. Follow the points:

  1. Disassemble the cartridge. To do this, first remove the rubber ring. Then use a screwdriver to pry and remove the retaining ring. Next, the outer casing of the cartridge is carefully removed, and then the pressure ring, ball and spring are removed.
  2. Now unplug the mode switch. This is done differently depending on the model. At the end of the article, I gave a number of links to, which describe how he is removed on a particular model. If your unit is not among them, then you can look at any similar one to understand the principle. And further, I think, it will not be difficult for you to disconnect it from yourself.
  3. Free the collector from the brushes. To do this, unscrew the rear housing cover and remove the brushes.
  4. Unscrew the self-tapping screws that pull the body longitudinally and separate it.
  5. Remove the gearbox with the motor armature.

Now thoroughly rinse the gearbox itself, as well as the inside of its housing. Flushing can be carried out, for example, with gasoline.

After that, the most critical parts are first smeared. And then the entire gearbox is completely coated with grease.

Well, it remains to collect everything in reverse order.

How and with what to lubricate the gearbox and drill chuck?

Welcome to my site! This article will focus on lubricating a rock drill. The operation of this tool requires more than simple care. Be sure to periodically lubricate the gearbox and cartridge.

In this case, the gearbox, of course, comes already lubricated from the factory. But over time, the lubricant leaks somewhere, dries somewhere. In addition, it is intended only to reduce friction, not to eliminate it. Therefore, one way or another, and the parts still rub against each other, due to which fine metal dust is gradually formed, which remains in the lubricant.

As a result of this mixing of the metal and the lubricant, the properties of the latter are gradually lost and the wear of the parts is accelerated.

The cartridge is dry from the factory. Here, in fact, it is not the cartridge itself that is completely smeared, but only that place of it that comes into contact with the drill, since it is in it that strong friction occurs, without reducing which it is possible to damage both the cartridge itself and the drill shank.

So, below we will consider how and how to lubricate these elements. The SDS rotary hammer with a horizontal engine will be considered, since it is in the overwhelming majority of cases that home craftsmen use it, and the article is mainly written for them.

How to lubricate a punch

Different types of grease are used to lubricate the gearbox and drill chuck.

Gearbox grease

A special lubricant is used here, which should be called a gear lubricant. It can be as under the brands under which the perfs themselves are produced. Makita, Bosch, AEG, etc. But it can also be produced by a company that deals with this particular type of product, for example, Ravenol, Shell, Xado, etc.

Some people use simple lithol or salidol for these purposes. But compared to specialty lubricants, they dry out faster and do not eliminate friction as much as necessary.

Lubricate the chuck and drill shank

This operation is very simple, so its description will be rather short.

We just take the drilling lubricant and add it directly to the chuck. Another option involves applying it to the shank and then installing it into the socket of the cartridge. But no one forbids combining these two methods for reliability.

It is necessary to ensure that the lubricant is constantly present and add new as necessary. If this procedure is neglected, the shank will overheat, which will either tear it off the rest of the drill or flatten it. So don’t be lazy and add.

That’s all there is to know about the chuck and shank.

As I promised, I am attaching at the end of the link to the disconnect switch:

This is all the information I have on the lubrication of the hammer drill. I hope it was clear and accessible. On this I say goodbye. Until we meet again!

How to lubricate a gearbox in a hammer drill: lubrication and stages of work

Every tool needs timely maintenance, and the hammer drill needs it first. After all, the work of this tool is accompanied by a huge number of reciprocating rotations and movements, and the volume of dust emitted from the working object has a high concentration. Under these operating conditions, careful maintenance of the device and timely replacement of the lubricant in the perforator gearbox are required.

Most users believe that if grease is present, it can be used indefinitely. This opinion usually exists among users due to the poor level of knowledge of the laws of physics, so let’s talk about the mechanism of the lubrication in more detail.

Why is the hammer drill overheating?

And now we lubricate all parts of the gearbox and assemble it in reverse order. Do not forget that excessive amounts can also affect the performance of the tool: the heating of the gearbox may increase significantly.

If the hammer drill began to heat up more than usual during operation, this does not mean that there is a problem with lubrication. Most likely, you used the chiseling mode for a very long time and the lubrication simply did not pass to all parts of the hammer drill in the right amount.

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Another reason may be clogged motor cooling holes. In this case, there is only one solution: to clean the tool from dust and switch it temporarily to another operating mode. If the hammer drill works for half an hour like a regular electric drill, then the body temperature will drop significantly. Reducer must have the same temperature in any mode operation of the puncher.

What is needed to lubricate the rotary hammer gearbox?

This lubricant is also demanding for the temperature regime of operation. But this does not mean at all that it is impossible to use lithol. There are factors when, during the use of domestic lubricating fluid, the impact force of the tool only increases and the noise level generated by it decreases. Over, this is true for a Chinese-built punch.

Users of the Chinese tool do not rely on warranty service, therefore they act at their own discretion from the very beginning of the operation of the hammer drill (or electric drill). As a hammer drill of any manufacturer has its own fundamental design features, then there is simply no single lubrication instruction. The main thing is that you have at hand:

  • Rags;
  • Perforator operating instructions;
  • Branded lubricant or its domestic analogue.

And then, as you already understood, we act clearly according to the instructions. And remember that anyway the perforator must be cleaned as much as possible from dust after work. Make sure that the lubricant level is not more than the reference mark. Most often, the perforator has a special container for the lubricant, that is, it will not be difficult to do this whole procedure.

It is undesirable to lubricate the gearbox in a hammer drill immediately after work, because hot parts, when cold lubricant gets on them, lose their physical characteristics. The drill shank also needs to be lubricated with lithol or grease. If the hammer drill has an open chuck, then it is advisable to process the oil seal. First, you need to disassemble it and wipe it thoroughly. The applied lubricant will make it possible to extend the service life of the device and will protect against dust getting into the tool. There are several types of lubricants:

  • For the gearbox;
  • For drill bits;
  • For drills.

Features of maintenance of an electric drill with a punch function

It is much more difficult to maintain an electric drill, which works with a hammer drill function. This hybrid of tools has some disadvantages, unlike a conventional rock drill:

  • They do not have special containers for pouring lubricant;
  • It is much more difficult to service the drill chuck.

Permanent lubrication is required only for the bit tip. The amount of lubricant is minimal: you just need to clean the drill from dust and apply a small (the size of a match head) amount of grease to the tip. The same requirements apply to the lubrication of a conventional rotary hammer drill. An excess amount of grease on the drill will not harm the tool mechanism, but it will splatter in any case and can damage the repair of the room. But if the grease is brought into the gearbox in an excessive volume, it will simply leak out.

There is little to say about professional rotary hammers. In home use, this tool, as a rule, does not exist. Here, first of all, the price of the instrument plays a role, therefore, it is chosen much less often. But at the same time this tool is considered the simplest and unpretentious in operation. There is usually no problem with the lubrication of this tool, because the design of the mechanism is very simple.

The gearbox also does not have any features that make it difficult to maintain. It’s simple: we unscrew the drain valve, pour the used grease into the container, rinse the reservoir for the punch lubricant, tighten the drain hole and pour new grease to the desired mark. The gearbox of this rock drill is serviced in the same way as described above.

What is hammer drill lubricant and why is it needed?

Lubricant is a viscous substance designed to minimize the coefficient of friction between tool parts. Reduce, not completely remove. That is, it means that friction between parts is almost always, and some of the small particles are separated from the tool and get into the oil itself. After a while, this grease saturated with metal dust no longer fulfills its direct function. At first, its viscosity simply changes, and later the lubricant itself causes the rapid wear of the tool parts. Viscosity is considered the main parameter that you need to pay attention to when purchasing it.

The manufacturer must indicate in the technical documentation all the characteristics of the tool and the lubricating mass to be used. Much attention should be paid to the frequency of maintenance, which indicates after what time it is necessary to change the lubricant.

For a hammer drill that has a quality certificate, you need be sure to use only original lubricants, otherwise, after failure of the tool, you will lose the right to warranty service. After the warranty period has passed, it is also better to use the lubricant recommended by the manufacturer, but at this time, most often, the user uses cheaper domestic counterparts. Litol or grease will not harm your instrument in any way. But do not forget that lithol is produced much faster, that is, it needs to be replaced much more often.

How to choose a drill lubricant?

One of the most popular products is diesel engine oil. Also graphite lubricant is quite good, it is often used for open worm gears. Litol 24 is also popular, but this grease also causes braking and additional heating. And it works for a relatively short time, unlike branded lubricant for a hammer drill and for cordless tools, it is extremely undesirable.

Gearbox lubrication

The hammer drill reducer is the most complex structural unit of the device, therefore it requires special attention. It is not so difficult to lubricate the hammer drill gearbox, but self-assembly of a pre-disassembled unit can cause serious difficulties. If the hammer drill is still under warranty, then it is best to contact a specialized workshop with a question about lubricating its gearbox, which provides warranty service for such equipment.

A detailed diagram of the device of your punch will help you understand the mechanism and correctly assemble the tool

If the hammer drill you own is not covered by any warranty or the warranty period for your equipment has already expired, and the authorized service center is far enough away, you can lubricate the gearbox yourself, observing the maximum accuracy and care. To do this, you need:

  • A set of locksmith tools with which you will assemble and disassemble the perforator gearbox;
  • Clean rags;
  • The composition itself for performing the lubrication.

“Native” grease for the Makita P-08361 reducer. Refueled upon initial tool assembly and recommended for maintenance

It is better if the lubricant is a proprietary agent specially designed for equipment of a certain brand. So, it can be grease for a Makita rotary hammer or grease for a Bosch rotary hammer. If you do not have a branded lubricant, but you cannot buy it, you can also use inexpensive domestic lubricants.

It is very important that you have instructions for the hammer drill you are going to lubricate. Naturally, if you are the owner of a Makita or Bosch hammer drill, this should be a manual for the equipment of these particular brands.

All parts of the gearbox must be completely cleaned of old grease

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Having carefully studied the instructions for the hammer drill, you can begin the procedure for lubricating its gearbox.

  • Before disassembling, the rotary hammer should be well cleaned of dust.
  • When disassembling the gearbox, it is advisable to immediately remember how the elements of its design are located in it. It should be borne in mind that it is not recommended to disassemble and lubricate the gearbox immediately after using the hammer drill. This is explained by the fact that the still hot parts of the gearbox can lose their physical characteristics when a cold lubricant gets on them.
  • After all component parts of the gearbox have been removed from its housing, they should be thoroughly washed with gasoline or spindle oil and wiped dry.
  • The inside of the gearbox housing must also be washed, wiped clean (as far as possible) and allowed to dry completely.
  • When disassembling the perforator gearbox, you can pay attention to the fact that there is no lubrication on some elements of its design. This only means that such parts do not need lubrication and there is no need to apply it to them.
  • As mentioned above, it is better to use a proprietary lubricant for the gearbox of a drill or hammer drill, which has a number of advantages. In particular, branded lubricants retain their original characteristics much longer, so they can be used much less frequently. In addition, the proprietary lubricant composition has such an important quality as water resistance, so it effectively protects the metal parts of the hammer drill from moisture and, accordingly, from corrosion. As a good alternative to branded lubricants for a hammer drill or drill gear, you can use Metabo oil, the cost of which is quite affordable.
  • After lubrication of all elements, the gearbox must be carefully assembled following the reverse sequence.

Before performing this procedure, the tool shank must be thoroughly cleaned. After that, a special lubricant for rock drill drills or regular lithol is usually applied. In addition, if an open-type cartridge is installed on the perforators, it is advisable, after wiping it, to process its oil seal, which will provide more reliable protection of the inside of the device from dust entering it.

Hammer drill bit lubrication

Taking proper care of your hammer drill

The hammer drill is a hybrid of two types of equipment used to create holes in different materials. Unlike the classic hammer drill, such a drill has some design flaws, which makes its maintenance more difficult and not very convenient. Such disadvantages, in particular, include:

  • Lack of a special container into which the lubricating composition is poured;
  • The complexity of servicing the cartridge due to the peculiarities of its structure.

The main care of a drill with the functions of a hammer drill is that after each use, the drill of such equipment (including the tail) must be well cleaned of drilling waste, and before inserting such a tool into the drill, a small amount should be applied to its shank lubricants (you can use ordinary grease). Excessive lubricant on the shank will not harm the tool and equipment used, but may adversely affect the appearance of the surface you are drilling, as excess lubricant will spray out from the rotating chuck.

Impact Drill Gear Lubrication

As a rule, drills with the functions of a perforator are purchased for domestic use, since their price is quite affordable, and they do quite well with their functions when performing simple repairs around the house. Despite the fact that these power tools have the features mentioned above, maintenance of the rotary hammer drill is not time-consuming and does not cause problems even for inexperienced users.

Equipment overheating reasons

Many home craftsmen have a question about how to use a hammer drill so that the housing of its gearbox does not overheat. First of all, you should find out the reason for the excessive heating. One of these reasons may be too much grease in the inner part of the gearbox, which also negatively affects the performance of the device.

The reason for the intensive heating of the perforator gearbox may be that an insufficient amount of lubricant is supplied to its internal parts. This can happen when the hammer drill is used for too long in chiseling mode.

Through this hole in the punch body, grease is periodically added during operation

Another common cause of device overheating is clogged holes that supply cooling air to the hammer drill motor. In such cases, it is necessary to thoroughly clean the rotary hammer from dust and put it in the normal drilling mode for a while. When operating in this gentle mode for about half an hour, the temperature of the gearbox housing should drop.

Lubricant selection

A versatile and relatively inexpensive lubricant that can be used on most modern rock drill models is diesel oil. Compounds based on graphite are actively and successfully used to lubricate rock drills. Such compositions, in particular, are used to lubricate open-type worm gears.

Gearbox and Rock Drill Bits Lubrication: Proper Tool Care

Rotary hammer lubrication extends its life and makes its use more efficient. In order for the effect of the lubricant to bring the expected results, when choosing it, one should take into account not only the characteristics of the lubricant, but also the technical parameters of the device for which it is planned to be used. When choosing how to lubricate a rotary hammer, one must also bear in mind the fact that different parts of such equipment need different types of lubricant.

Correct Lubrication of the Rotary Hammer Gearbox

There is an opinion that the presence of grease on the moving elements of the rock drill allows you to postpone its replacement for a long time. Meanwhile, this opinion is fundamentally wrong, and in order to change it, it is enough to get acquainted with the principle by which lubricants work.

Why do punch elements need lubrication

Lubricant, including that used for a perforator, is a viscous substance, the use of which is necessary to reduce the coefficient of friction between structural elements of a mechanical device moving relative to each other. Thus, the lubricant only reduces friction, but does not completely eliminate it, so the lubricating composition is gradually saturated with wear products of rubbing parts. Metal dust. As a result, not only does the viscosity of the lubricating composition change, but it itself becomes the cause of more intensive wear of the equipment.

Over time, the grease becomes dirty and loses its properties

How to choose the right lubricant for a specific rock drill model? First of all, it is necessary to take into account the recommendations of the equipment manufacturer, which necessarily indicates both the required type of lubricant composition and the frequency of its replacement. It is especially important to be guided by such recommendations before the warranty period for the hammer drill has expired. Otherwise, in the event of a device breakdown, you will not be able to take advantage of the manufacturer’s warranty obligations.

Many owners of rotary hammers after the expiration of the warranty period begin to use not proprietary formulations for lubrication, but their cheaper counterparts. Lithol or solidol. Of course, such lubricants are not able to harm the structural elements of the perforator, but when using them, it should be borne in mind that they should be replaced much more often.