"Makita 2450": characteristics, assembly diagram, repair by hands, reviews

In our country one of the most popular punchers is "Makita 2450". And this is not accidental. After all, "Makita 2450" has good characteristics, and its assembly scheme allows you to repair the perforator with your own hands. The firm "Makita" is known as a quality Japanese manufacturer, but the model HR 2450 is produced in China. To draw conclusions about the quality of the equipment presented, users' reviews of the "Makita 2450", left in different sources, should be considered. Deepening knowledge about the presented tool, it will be simple to make a conclusion about the expediency of its purchase.

General characteristics

"Makita 2450" is known among builders and repairmen as a rather functional professional tool. It is simple and reliable in operation, it has ease and good balancing. Thanks to this "Makita 2450" will last a long time. It has a good dust protection system, which makes the operation of the equipment durable.

Its popularity is explained by the possibility of repairing the Makita 2450 perforator at home. Do not need to spend a lot of money on his maintenance. However, before the process of assembling the Makita 2450 perforator, you should familiarize yourself with the technology of its dismantling and repair.

Specifications

A certain set of qualities has a puncher "Makita 2450". The characteristics given by the manufacturer in the instructions are as follows.

The weight of the tool is only 2.4 kg. Mounting of drillers is carried out by the SDS + system. The perforator is designed for crushing, drilling and impact drilling. It has three modes of operation. The idle speed is 1100 per minute, and the maximum number of strokes is 4500 per minute. The translational force at the maximum is 2.7 J. Maximum drilling diameter:

• For wood - 32 mm;
• For metal - 13 mm;
• For concrete - 24 mm;
• For a hollow crown - 54 mm.

There are also additional functions for the perforator "Makita 2450". The features highlight the presence of a safety clutch, reverse, locking the power button, as well as electronic speed control.

Power supply network is 780 watts. The length of the cable is 4 m.

Signs of forgery

Due to the great popularity of the equipment presented, cases of forgery are not uncommon. There are special features that define a non-real-time HR 2450 puncher. These include a short cord (about 0.5 m). The letters on the black clasps of the suitcase are forged at the matte, and the original ones have shiny ones.

On the photo of the puncher in the instructions for this product the background is light gray, almost white. The copy will have a dark, dull back-ground color image.

If the suitcase model HR 2450 is listed as the manufacturer of Japan, this is not a real tool. The original says: "Made in PRC", i.e. "made in China".

"Makita 2450" includes a rubberized handle on which the serial number is indicated. All parts of the suitcase must also contain each of its designations. At a fake the handle is executed not from rubber, and from plastic. This should also be a signal of the need to abandon the purchase of such a tool.

Disassembly diagram

In the process of repairing the presented technique, the user should be able to disassemble the instrument. Scheme of assembly of the perforator "Makita 2450" has a lot of nodes and elements. To carry out repairs, you do not need to know all of them. Here are the most basic elements that the scheme represents ("Makita 2450" - the device is very complicated).

The first is a retaining ring. It is involved in the process of dismantling the cartridge cover. Then comes the ring locking device. It holds the ball to fix the drill. Its guide is a washer and a conical spring.

The reducer with the motor connects 4 screws. In the scheme there are many rubber parts, which, when worn, become a frequent cause of breakdown.

This knowledge is enough to carry out repairs at home. Then you should familiarize yourself with the technique of its conduct.

Feasibility of self-repair

Repair of the perforator "Makita 2450" with their own hands should be carried out for several reasons.

Representatives of the service center perform troubleshooting by a certain algorithm. This leads to a large enough cost for repairing the tool.

It is also very likely that employees of the company's representative office will conduct a routine inspection, the need of which is questionable. And pay for it still have to.

If the node or several of them still require a replacement, the service staff will supply only licensed parts of the "Makita 2450". Repair in this case may be comparable in value with the purchase of a new instrument. All these facts speak in favor of independent adjustment or replacement of equipment parts.

Repairs

"Makita 2450" with their own hands is repaired with certain knowledge and skills. The technology of inspection and replacement of parts of the model HR 2450 is quite simple. It involves the disassembly of the tool, after which all old grease, dust, dirt is removed. Damaged nodes are replaced with new ones. Then all the details of the puncher are assembled. It is necessary to familiarize with each item of such works. They can be produced in the area of the cartridge, mode switch, hammer body.

To carry out repairs, first remove the cartridge, then switch the speeds. After this, the inside of the case is repaired. The lubricant and worn rubber elements are replaced.

Cartridge

Using a flat screwdriver, the cartridge is disassembled. Repair of the Makita 2450 perforator begins with this element. Unscrew the lid of the cartridge, remove the rubber dust cover. The circlip is removed. Then the cartridge cover and the metal ring are removed. It locks in the barrel a ball of fixation of the drill. It is removed, and the metal washer, conical spring is effortless.

The cause of breakage can be wear parts. It is detected if the drill does not snap automatically, without pressing the lid. Checking all the details, identify the cause of the failure. Old elements are cleaned of dirt and old grease. The ball is densely treated with new oil. The conical spring is fitted with a narrow side to the resistor.

The guide washer should press it so that it is below the hole in the barrel. Repair of the Makita 2450 perforator from the area of the cartridge requires the fixation of the ball in the hole. All parts are assembled in the reverse order.

Mode switch

For dismantling, the T-shaped latch on the switch handle is removed. Use a 2 mm screwdriver to do this. Very carefully, you need to press the latch paws. It is pulled out. The red lock must be held in place so that it does not come out under the action of the spring.

After carrying out these actions, the switch knob should be turned to the leftmost position. So its protrusions will coincide with the grooves of the editor's body. The switch is easily removed. The retainer is removed together with the spring. The rubber ring on the switch handle should be pinched by a thin screwdriver and removed. It prevents the lubricant from escaping from the housing.

Scheme assembly of the perforator "Makita 2450" in the area of the switch assumes a certain sequence of conduct. All parts and seat are cleaned of old dirt. Densely lubricate two metal pins and a rubber ring. He is put on the switch. A spring is inserted into the handle, then a lock. He should not jump out when a latch is installed in the body.

Then the switch is inserted into the reducer. In this case, the handle is directed to the sector between the designation of the combined mode and impact. He does not get stuck in the process. The switch should be turned to the drilling mode and a little further. Thus it is necessary to not forget to press the lock button that it did not stir to movement.

Then turn the switch clockwise and push the latch all the way to the end.

Switch Malfunction

In the process of getting acquainted with the question of how to assemble the "Makita 2450", you should find out the frequent malfunctions of the switch. They can be caused by the wear of metal pins. In this case, any of the modes will not be activated. It will be necessary to replace the switch. This should be done in the event of a break in the landing protrusions.

If the rubber ring is worn out, there will be a slight leakage of grease. Have to replace it.

It happens that the lock breaks the beak, which it is attached to the hollows of the reducer. The clamp feet can be damaged. To avoid all the aforementioned breakdowns, you must carefully handle the tool.

Gearbox body

To remove the housing from the gearbox, raise the tool bar up. The perforator should be pressed to the workbench, while pulling the shell up. In this situation, all the details remain in their places.

After they have been inspected, checked and replaced, the gearbox housing is in place. All of its elements should be located in its original form. Required elements must be lubricated.

During assembly, the gearbox housing must be cleaned with kerosene or gasoline. Then the shell is put on the original place. The mode switch should not be in it.

Malfunctions in the gear housing

The case of the model HR 2450 is characterized by high strength, breakages in this node are quite rare. But it happens that here there are certain troubles. If the body got together with a needle bearing, it means that its seat was badly worn. When this part is extremely diluted, replace the case.

Sometimes the intermediate shaft seat is broken. Repairs are supposed to be similar to the first case.

The housing of the reducer housing has an oil removal ring. If it is damaged by building dust (it happens very rarely) or inaccurate actions of the repairman, it is changed together with the hull.

The same procedure is performed in the event of failure of the mode switch holes. The listed types of breakdowns are typical for counterfeit copies.

Customer Reviews

Among users, opinions about the instrument were divided. Of the deficiencies, overheating and leakage of the Makita 2450 perforator lubricant were noted. Reviews also make it clear that repairs are done by the service center long and expensive. However, by eliminating the cause of the problem yourself, you can expect the tool to function normally. Especially often there are malfunctions in the punchers, which were released in recent years. But earlier products are known as the most qualitative. This is due to the appearance of many substandard counterfeits, which are not manufactured by the original technology.

Positive features of the model considered are convenience in operation, durability and endurance. It, according to consumers' reviews, is quite universal. The puncher is ready to perform the tasks of both a screwdriver and a shock bumper of walls. In this case, the tool can work with refueling oil once every 2 years without repair. Suitable for both home use and professional use.

It is noted that this is one of the most inexpensive punchers. It's light, but powerful. When buying the original and the normal handling of the user during operation, the equipment will work long and productively.

Having acquainted with the characteristics, schemes of assembly and repair of the Makita 2450 perforator, it is possible to extend the life of this tool. By servicing and replacing parts yourself, the user will save considerable money. At purchase it is necessary to pay attention to characteristic differences of the original tool. It will last longer than fake.