How to disassemble and assemble the punch makita

Instrument disassembly and assembly procedure

Before proceeding with the punching of the perforator, you need to stock up on tools that you cannot do without: hexagons, screwdrivers with various cuts (minus, cross, curly), special bearing pullers, vice.

It is advisable to have on hand spare parts that may be needed to replace old ones, as well as lubricants, cleaning agents.

Always useful:

• grease, solvent;
• spare brushes (if replacement is needed);
• copper wire of suitable cross-section.

It is not difficult to disassemble the unit, the main thing is to follow the instructions and be as careful as possible. Observe safety precautions, before starting work, unplug the tool from the mains.

How to insert a drill?

It is not difficult to perform this operation, the main thing is to follow the correct sequence of actions:

• insert the drill into the chuck;
• rotate the upper part clockwise until it stops;
• fix the drill.

After the performed actions, it is imperative to check the stability and quality of the drill attachment.

Does not hold a drill in a chuck

Disassemble the cartridge to find out what the problem is. Most likely. this is aging, damage to the cartridge. Maybe the fixing spring has sagged, the balls have lost their shape, and so on.

Usually, replacing obsolete or out-of-order parts allows you to fix this kind of breakdown.

Assembly

Before returning all the parts that make up the hammer drill, apply a new layer of grease. Clean the housing with petrol. If necessary, change all parts that need to be replaced, varnish the coils. Degrease the collector with a cotton pad moistened with alcohol solution to avoid dust adhesion to the lubricated bearing. Collect everything in reverse order.

May need to be repaired, serviced, preventive or even replaced.

You need to know not only the rules for disassembly and assembly, but also be able to fix minor problems.

Replacing the start button

The process includes the following steps:

• remove the cover covering the equipment;
• disconnect the contacts of the conductors;
• pull the button body out of the place where it is and put a new button;
• connect the contacts, collecting everything in the reverse order.

How to repair a Makita rotary hammer?

• Design
• Instrument disassembly and assembly procedure
• Disassembly
• Assembly
• Causes of breakdowns
• How to change the cartridge?
• How to insert a drill?
• Replacing brushes
• Troubleshooting
• Doesn’t turn the cartridge
• Does not hold a drill in a chuck
• Replacing the anchor
• The tool does not hammer
• Advice

The Makita hammer drill is a Japanese representative of repair equipment that can be used both at home and in professional activities. In the assembly of this power tool, only high-quality materials are used that meet international quality certificates.

What you need to know about the Makita tool, what information to have, we will consider further.

The tool does not hammer

Most likely, the floating bearing has broken, it will need to be replaced. The problem may also be related to the violation of the impact. It appears during long-term operation, which causes the striker to split. In this case, it must be changed.

Another type of breakdown is the aging of the piston group. It is necessary to replace the piston and liner.

How to insert a drill

Installing the drill does not require much effort and is done quickly enough:

• place the element in the chuck,
• turn the upper part clockwise as far as it will go,
• fix.

After all the steps have been taken, it is imperative to check the fasteners and their stability so that there are no problems during operation.

Each half has a specific function.

The Makita 2450 hammer drill is a serious tool with which you can perform drilling and hammer drilling, as well as crushing. A special system of protection against dust is installed in the design, the device is distinguished by the presence of anti-vibration, so the process of use is quite comfortable.

It is easy to disassemble the punch yourself

Causes of breakdowns

There may be several reasons why the device fails. The following are considered the main ones:

• Ingress of dirt, moisture, dust.
• Hardening of the grease that is inside the device and helps easier operation.
• Long-term use, use in harsh conditions.
• Constantly switching modes from one to another.

It is also worth paying attention to increased noises during operation. such a phenomenon is often a warning about the presence of problems in the operation of the device.

Instrument disassembly and assembly procedure

How to disassemble a Makita rotary hammer at home? It is possible to assemble and disassemble the device yourself.

How to Disassemble and Repair Makita Rotary Hammer

The Makita Rotary Hammer is a great tool that can be used in both home and professional environments. The manufacturer is Japanese; only high-quality materials that meet all the necessary requirements are chosen for assembly. It is quite possible to repair a Makita hammer drill with your own hands.

Makita tools are reliable and excellent quality

Design

The hammer drill differs from a conventional drill in that it has a greater impact force. The device is used when working with serious materials. Due to the high power of the device, a person spends less effort, but the result is better.

The construction of the Makita hammer drill consists of two parts. electric and mechanized. They are easy to distinguish by color. the first is green, the second is black.

Features of the repair of the HR2540 model

Rotary hammer model HR 2540 (like hr ft 2470, models hr c, 2610) is the most popular, therefore it is often bought and used for work.

It is not difficult to disassemble and assemble it. The main feature in such a case is the exact observance of the instructions. The purpose of the procedure is to replace unusable parts with new ones to ensure the operability of the device.

Troubleshooting

Makita manufactures tools that are highly reliable. However, in some cases problems arise, so you need to know how to deal with it:

• Doesn’t turn the cartridge. A similar situation is possible in the event of damage to the engine or motor. You will need to disassemble the product and inspect it carefully. Sometimes the reasons can be a breakdown of the start button or a short circuit of the coils.
• Does not hold a drill in a chuck. In most cases, the problem lies in old parts or a damaged cartridge. It is recommended to disassemble the device and look for a solution to the problem. Sometimes it is enough to replace some parts with new ones.
• Replacing the anchor. In this case, the procedure is carried out in several stages. First, open the cover from the back, remove the brushes, disconnect the gear case. Having cleaned the parts from dirt, replace the anchor with a new one, and then put on shock absorbers made of rubber and a new air intake plate. Collect the puncher.
• The tool does not hammer. Often the cause is the breakdown of the floating bearing or the splitting of the striker. In both cases, replacement parts will be required.
• Replacing the start button. Failure of the start button requires its replacement. To do this, you will have to disassemble the device. remove the cover, disconnect the contacts, remove the old button and replace it with a new element. Then put everything back together.
• Overheating during use. A similar situation occurs when the device is used incorrectly. If unpleasant odors occur, it is recommended to disassemble the device and check everything.

If necessary, parts are replaced with new ones.

Repair of the mechanical part of the Makita 2450 and 2470 rotary hammer

Any tool repair begins with determining the nature of the malfunction and disassembly.

The Makita 2450 and 2470 hammer drill can be repaired by a user who has basic locksmith skills and is familiar with electrical safety requirements.

This article discusses the mechanical part of the Makita rotary hammer, the main malfunctions and how to fix them.

Dismantling the mechanical part of the Makita 2470 rotary hammer

To get to the mechanical part of the punch, you need to remove or disassemble the cartridge.

Dismantling the quick-release chuck
Place the punch on the rear case cover on a tabletop covered with a clean cloth or paper. Using tweezers or a screwdriver, remove the rubber tip 35, item 1.

Now you can remove the housing of the mechanical part
It is black in color.
Using a screwdriver, unscrew the four screws at the end of the case.

Holding the black case with your right hand, press your thumb on the end of the shaft from which the cartridge was disassembled. Plastic housing can be easily removed.

Next, you need to remove the gearbox shaft.

To disconnect the mechanical part from the electrical one, you must first remove the electric brushes.
Remember! In the lower part of the housing, the rotor is held by electric brushes, which must be removed.

After checking that the electric brushes are disconnected from the rotor lamellas, use a screwdriver to pry the metal case of the puncher on the border of the green plastic case.

Now we turn to disconnecting the rotor from the mechanical part of the rock drill. The rotor is held in the mechanical part by the helical gears of the reducer.
If you take the rotor housing in one hand and the mechanical housing in the other and pull in different directions, swinging, you will separate these two units.

You will get such a knot in the old grease.

Then unscrew with a hexagon two bolts M4 × 12, pos. 43, art.266273-7 with an internal hex head.
Pull out the shaft with the intermediate spur gear 10 pos.80, art.226399-7.
from the inner case, pos. 49, art. 153687-8. Remove old grease from parts.

You will get such a mountain of clean details.

Now carefully look through the details, discard the rubber rings immediately after picking up new ones.
Replace defective parts with new ones.

Mechanical malfunctions of the Makita 2450 and Makita 2470 rotary hammers

Frequent mechanical failures of Makita rock drills include:

• destruction of the quick-release chuck;
• failure of bearings;
• breakage of the striking mechanism;
• drill barrel wear;
• wear of striker and striker rubber bands;
• breakage of gears.

The hammer drill chuck is repaired to replace the boot and rubber ring, as well as the conical spring and the steel ball, which secures the working tool (drill). This is indicated by what is a working tool? namely the drill, does not hold well in the chuck.

The main reason is the wear of the steel ball 7.0, item 20, art. 216022-2. Ball wear occurs from contamination of the bore of the cartridge due to the ingress of dust and dirt.

The general view and device of the Makita hammer drill chuck is shown in the photo below.

Do-it-yourself repair of the makita 2450 perforator cartridge is easy. The cartridge must be disassembled, freed from old grease, discarded rubber parts, replaced defective.

complex malfunctions require knowledge of the mechanical part of the Makita 2450 rotary hammer.

Having determined the nature of the malfunction of the Makita hammer drill, proceed to disassemble the mechanical part, called the gearbox.

Disassemble the mechanical part according to the attached video.
Free her from the old grease.
Carefully inspect all parts, their integrity, level of wear. All rubber products require replacement during any disassembly.

Consider repairing the barrel of a rock drill. Let’s analyze the mechanism completely.
Video of disassembly, lubrication and assembly of the Makita rotary hammer

Bulkhead rotary hammer Makita 2450

Repair of the mechanical part of the Makita 2450 and 2470 rotary hammer

Any tool repair begins with determining the nature of the malfunction and disassembly.

The Makita 2450 and 2470 hammer drill can be repaired by a user who has basic locksmith skills and is familiar with electrical safety requirements.

This article discusses the mechanical part of the Makita rotary hammer, the main malfunctions and how to fix them.

Dismantling the mechanical part of the Makita 2470 rotary hammer

To get to the mechanical part of the punch, you need to remove or disassemble the cartridge.

Dismantling the quick-release chuck
Place the punch on the rear case cover on a tabletop covered with a clean cloth or paper. Using tweezers or a screwdriver, remove the rubber tip 35, item 1.

Carefully loosen the annular spring, pos. 2, the coupling cover, pos. 3, and the steel ring, pos. 4. You will reach a steel ball with a diameter of 7 mm pos. 20.

Now you can remove the housing of the mechanical part
It is black in color.
Using a screwdriver, unscrew the four screws at the end of the case.

Holding the black case with your right hand, press your thumb on the end of the shaft from which the cartridge was disassembled. Plastic housing can be easily removed.

Next, you need to remove the gearbox shaft.

To disconnect the mechanical part from the electrical one, you must first remove the electric brushes.
Remember! In the lower part of the housing, the rotor is held by electric brushes, which must be removed.

After checking that the electric brushes are disconnected from the rotor lamellas, use a screwdriver to pry the metal case of the puncher on the border of the green plastic case.

Now we turn to disconnecting the rotor from the mechanical part of the rock drill. The rotor is held in the mechanical part by the helical gears of the reducer.
If you take the rotor housing in one hand and the mechanical housing in the other and pull in different directions, swinging, you will separate these two units.

You will get such a knot in the old grease.

Then unscrew with a hexagon two bolts M4 × 12, pos. 43, art.266273-7 with an internal hex head.
Pull out the shaft with the intermediate spur gear 10 pos.80, art.226399-7.
from the inner case, pos. 49, art. 153687-8. Remove old grease from parts.

You will get such a mountain of clean details.

Now carefully look through the details, discard the rubber rings immediately after picking up new ones.
Replace defective parts with new ones.

Stage V

Hammer drill Makita: DIY repair

Self-repair of the tool is allowed with special skills and knowledge.

Diagnostic technology and troubleshooting are identical to other devices. First, you need to disassemble the tool by removing the case, and then remove the obsolete grease and contamination.

It is recommended to replace the nodes that have stopped working. After that, all the components of the mechanism are set to their original position.

For correct operation, it is recommended to carefully study each point of the repair. To restore the functionality of the 2010 cartridge, the mode switch and the housing, the following steps should be performed:

• Remove cartridge
• Remove switch
• Eliminate defects in the inner part of the case
• Apply grease and replace worn parts

Why it is undesirable to hammer with a Makita hammer drill?

Often the equipment fails, and the drill flies out of the hammer drill. This happens for various reasons. Many users of Makita rotary hammers are faced with the fact that their device does not hit, but drills at the same time. You can fix the breakage yourself. The most common causes of malfunctions are listed below:

• Intermediate shaft wear
• Deformation of the clamping units
• Broken connecting rod system
• Lack of lubrication for correct operation
• Breakage of shock components

Stage IV