How To Lubricate A Makita Hammer Drill

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 only suitable for the gearbox, the other is suitable 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.

How To Lubricate A Makita Hammer Drill

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 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 devices 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 a 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.

Elements that do not require sliding during operation (transfer 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 details 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 device 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.

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.

What kind of lubricant is best for which rock drills?

The best option is to use only branded lubricants. So that the craftsmen 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.

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

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

To care for the “destructive” weapon, 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 selection of how to lubricate the Makita hammer drill.

You can use a multipurpose grease such as 042005-4A. Or use separate lubricants for specific parts of SPARKY attachments. 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 has run out, use multi-purpose grease 042005-4A.

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 craftsmen 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 internal components of the device. Therefore, it is worth using branded lubricants, clean and treat the power tool as necessary, and then it will 100% serve for more than one year.

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

Welcome to my site! This article will focus on lubricating a rock drill. 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 only intended 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 metal and lubricant, the properties of the latter are gradually lost and wear of parts is accelerated.

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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 is in contact with the drill, since it is in it that strong friction occurs, without reducing which both the cartridge itself and the drill shank can be damaged.

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 it that DIYers use in the overwhelming majority of cases, and the article is mainly written for them.

We 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 at your own.
  3. Free the collector from the brushes. To do this, unscrew the back case cover and remove the brushes.
  4. Unscrew the self-tapping screws that pull the case longitudinally and separate it.
  5. Remove the gearbox together 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.

Gearbox grease

A special lubricant is used here, which should be called. 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 also use simple lithol or salidol for these purposes. But in comparison with special lubricating products, they dry faster, and they do not eliminate friction as much as necessary.

How to lubricate a punch

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

Drill grease

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 punches.

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 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 grease 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 you need to know for 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 regarding the lubrication of the hammer drill. I hope it was clear and accessible. On this I say goodbye. Until we meet again!

Impact shaft assembly

First, you need to lubricate the inside of the cylinder (pos. 32) and insert the striker (pos. 30) into it.

It remains in the inner case of pos. 49 to put the lubricated barrel assembly in position 21 in place, putting it on the lubricated cylinder of pos. 32.
It is recommended to use a special grease developed for Makita rotary hammers as lubricants.
Lubricants are available in several types: Makita P-08361 and Makita 183477-5 SDS-PLUS.
Makita Grease 183477-5 SDS-PLUS is recommended for the gearbox. For drill shanks, Makita grease 196804-7 is used.

Lubricants vary in color, but have exactly the same characteristics.
And what other lubricants are used in the Makita 2450 and 2470 hammer drill?

And here we have an assembled mechanical block.

Rotary hammer reducer grease

Before starting work, you need to know how to lubricate the perforator gearbox.

Trong The unit uses liquid oils with a low viscosity index. A filler neck with a cap equipped with an O-ring is provided on the housing in the area of ​​the gearbox installation. Complete isolation of the gearbox from external contamination is the only condition that must be met when changing its lubricant.

How to lubricate the punch inside. Novaso

A hammer drill, like any other tool, needs timely and high-quality service, otherwise there is.

091; reinforced concrete assemblies and parts.

Periodic grease change is one of the most important maintenance components. But before you start prevention.

You need the torus.

How to change the oil?

If the warranty period has already expired and you want to change the oil yourself, you should refer to the manufacturer’s instructions. It indicates the compartment where the grease for the punch is poured.

The inside is washed with a special solution or kerosene. In addition to the gearbox, replaceable couplings and a drill, other elements of the tool do not need lubrication.

A small amount of oil is applied to the indicated areas. There should not be too much or too little lubricant. In both cases, the result will be unsatisfactory. Further assembly is carried out in the reverse order.

Rotary hammer lubrication is extremely important. By correctly selecting and changing the oil, you can significantly extend the life of your equipment. Without proper maintenance, the presented power tool fails quite quickly. Due to the complexity of the design and high loads, this equipment is in dire need of the use of lubricants. It is necessary to select them very carefully. Indeed, thanks to the additives contained in the oil, its viscosity, various qualities of such substances are provided.

How to lubricate the Makita 2450 rotary hammer

Welcome to my site! This article will focus on lubricating a rock drill. 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 only intended 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.

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As a result of this mixing of metal and lubricant, the properties of the latter are gradually lost and wear of 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 is in contact with the drill, since it is in it that strong friction occurs, without reducing which both the cartridge itself and the drill shank can be damaged.

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 it that DIYers use in the overwhelming majority of cases, and the article is mainly written for them.


Liquid oils can be used for the gearbox. They are poured in the quantities specified by the manufacturer. There are special holes in the body. Through them, oil is poured inside. The covers close tightly sealing the liquid. The most popular today is the grease for the hammer drill Makita, Bosch.

It is important for the gearbox that the consistency of such products is liquid. Some models use creamy lubricants. But this is rather an exception.

Liquid oil leaves a thin but durable trace of the substance on the gearbox parts. It is also called film. Too liquid substances will not be able to maintain the integrity of the coating. The thick substance creates a too dense film. It prevents the movement of the gearbox.

The most popular products of this type today Makita P-08361, Bosch 1615430005.

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 is the cause of the rapid wear of the tool parts. Viscosity is considered the main parameter that you need to pay attention to when buying 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, where it is indicated 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 the failure of the instrument, 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.

Is it possible to disassemble the rotary hammer reducer yourself?

The tool reducer requires a lot of attention. It is not so difficult to lubricate the gearbox parts, but before the expiration of the warranty period, it is undesirable to lubricate the rock drill. You will be able to disassemble the gearbox in any case, but not everyone can assemble it. With the problem of gear lubrication it is advisable to contact the corporate service center or specialized workshops. This is a rather delicate job, therefore it is advisable to entrust it to professionals. But there are times when this nearest center is far from you, so you need to lubricate the gear yourself.

Pay attention to all details during disassembly. Some of them have absolutely no lubrication. This does not mean that the lubricant has already been used up. It’s just that some parts of the gearbox are not processed. You also don’t need to lubricate them. During disassembly, we try to remember as much as possible the location of the parts and the sequence of their disassembly. Thus, you will not have “extra” parts during assembly. All gearbox parts need rinse thoroughly with gasoline (or with a spindle) and wipe dry with a cloth. It is also necessary to wash the gearbox housing inside. You should not rush to assemble: let the case dry well.

Why the hammer drill is overheating?

And now we lubricate all parts of the gearbox and assemble it in reverse order. Do not forget that an excessive amount 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.

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 punch operation.

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, in contrast to the proprietary grease for the hammer drill and for cordless tools, it is extremely undesirable.

What is needed to lubricate the hammer drill 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 it creates decreases. over, this is true for a Chinese-assembled perforator.

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;
  • Instruction manual for the punch;
  • Branded grease 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 very difficult to do this whole procedure.

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It is undesirable to lubricate the gearbox in the 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 desirable 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 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 as opposed to a conventional rock drill:

  • They do not have special containers for pouring lubricant;
  • Much more difficult to maintain 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 mechanism of the tool, 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, then it will simply leak out.

There is little to say about professional rock drills. 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 lubrication, 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.

Makita Rotary Hammer Assembly Procedure

The assembly of any mechanism should be started after careful preparation. It is necessary to prepare not only the parts, but also the tools, place, lubricant.

Of the tools, you can not do without pliers, screwdrivers, a hammer, a brush for applying lubricant.

And what is the assembly diagram of the Makita 2450 and 2470 hammer drill?

Do-it-yourself assembly of a Makita rotary hammer can only be performed if the attached instructions are followed.

The task of the assembly process is to replace faulty parts with usable ones and ensure the interchangeability and operability of the tool.

General disassembly and assembly of the Makita 2450 rotary hammer

Check its performance by rotating the intermediate shaft and controlling the movement of the piston in the percussion mechanism. All!

Now grease all parts of the mechanical block with the recommended grease. Here is an example of how to properly lubricate rotating surfaces and here is another example of generous lubrication of a mechanical block.

You can’t spoil porridge with butter

So it is also allowed to apply lubricant. You can’t spoil porridge with butter!

The lubricated mechanical block must be closed with a plastic housing pos. 14 black.
Place the body on top of the assembly and press the body down until the assembly is fully seated in it.
Backwardness, insert four bolts (pos. 10) into the body and tighten. Now it is the turn of the connection to the mechanical part of the electric motor rotor.

Installing the rotor

The helical gear of the rotor is tightly inserted into the housing of the mechanical block and pressed.

It remains to insert four self-tapping screws m4 × 60 pos. 57. And screw them into the body of the electrical unit.

Assembling the reducer assembly

The assembly of the gear unit is carried out on the inner casing pos. 49.

Inner case

By the way, there are cases when the axles pop out of the inner aluminum housing. Both axles are pressed into the housing.

The assembled intermediate shaft is inserted into the housing of pos. 49, the rolling bearing lever of which should fall into the hole of the cylinder hinge. In this case, the rolling bearing lever pos. 41 of the intermediate shaft must fall into the cylinder hinge, pos. 32, and the lower intermediate shaft bearing into the housing in the housing. This procedure is usually performed by rocking the structure until the parts completely fall into the indicated places.

Assembling the striking mechanism

And how to assemble the hammer mechanism of the Makita rotary hammer?
The percussion mechanism is assembled from two units: a barrel shaft with a spur gear and an intermediate shaft with a rolling bearing. A). A spur gear, pos. 19, is put on the barrel, pos. 21, and pressed by the compression spring, pos. 18.
To fix the spring, it is pressed with a washer 30 pos. 17 and secured with a retaining ring 28 pos.16.B). To assemble the striker, you need to put the ring 9, pos. 25 on the shaft of the striker, pull the rubber ring, pos. 26, press down with the metal ring, pos. 27.

Now we go to the opposite side of the barrel, pos.21. On the other hand, the inner surface of the barrel must be lubricated with grease and inserted inside the assembled drummer, pos.

Assembling the intermediate shaft and piston

Assembling the intermediate shaft assembly

To assemble the intermediate shaft, it is necessary to put the rolling bearing, pos. 41, on the shaft, pos. 40, with the teeth to the splines of the shaft, put the coupling on the splines, pos. 39.

Transfer of translational motion

On the opposite side of the shaft, put on helical gear 26 pos. 42, flat washer 8 pos. 45, bearing 608zz pos. 46 and retaining ring 8 pos. 47.
The intermediate shaft is assembled.

The order of assembling the punch Makita 2450