How to turn the handle of the punch Bosch. How amplifier cartridges are arranged

How to remove the handle at the perforator

The principle of operation of the Bosch 2-26 perforator does not differ from the perforators of well-known brands. The rotating rotor transfers torque to the intermediate shaft of the mechanical node of the perforator, while transmitting the progressive movement through the rolling bearing to the driving mechanism of the perforator and the impact pulse. A rotational moment is transmitted to the working tool with a progressive shock impulse. This principle is implemented in all perforators.

But various firms producing perforators have their own design features.

Bosch perforators are considered the best in their segment of power tools. But there is nothing eternal.

If your punch Bosch 2-20, 2-24, 2-26 stopped working, then it can be restored with your own hands. You need to have elementary locksmith skills and understand a little in electrical engineering. And another important detail, the design of Bosch perforators is so simple that it does not cause difficulties in repairing.

When repairing power tools, including Bosch perforators, strictly observe safety precautions when working with electrical appliances.

To facilitate the repair of the Bosch punch, its disassembly and assembly, study the instrument assembly scheme:

Bosch 2-26 perforator scheme

Any disassembly of the Bosch 2-26 perforator begins after inspection, testing and identifying the causes of the device malfunction.

Bosch 2-26 punching video

The procedure for disassembling the punch Bosch 2-26

Since the procedure for disassembling the punch 2-20; 2-24; 2-26 is almost the same, consider the sequence of disassembly on the example of the Bosch 2-26 punch.

Dismantling of the punch Bosch GBH 2-26 DRE begins with disassembling the fast-parting cartridge.

Dismantling of a quick.Parting cartridge

In Bosch perforators, two types of cartridges are most often used: SDS-Plus cartridges and SDS-MAX cartridges. The difference between them in the principle of the clamp of the tail of a working organ.

The device of the Bosch perforator cartridge is different in the design of the planting rods of the tool depending on the SDS-Plus or SDS-MAX model. In addition to the listed types of cartridges, SDS-Top, SDS-Quick cartridges are found.

The difference between cartridges attachment nodes

The procedure for disassembling the cartridge of the perforator Bosch 2-26 is simple:

• Remove the rubber tip pos.34;
• Get out the stop ring pos.87;
• Remove the steel puck pos.833;
• Draw a conical spring pos.833;
• Gently, so as not to lose, using the magnet, take out the barrel balls pos.89.

Carefully inspect all the details of the cartridge.

SDS-PLUS rapidly leaning in disassembled

SDS-Plus cartridges were developed specifically for drilling tools. The diameter of the instrument shanks is 10 mm, the length of the working tool in the range is 110 1000 mm. The diameter of the drills lies in the range of 4 26 mm.

How to remove modes switch

Having put the perforator on the side, remove the post switch of poses.832.

First, turn the switch to the “drilling” position, press the screwdriver until the end of the switch button (it is red) and turn the switch counterclockwise at an angle of 70º.

Pulling the switch handle, pull the switch handle from the body.

Dismantling of the assembly unit

By putting the punch 2-26 vertically on the handle, twist four screws poses.90 holding the cover of the body of the mechanical node.

Click on the end of the shaft of the shock mechanism and remove the lid. Black plastic cover.

Now we need to remove the barrel pos.821 and intermediate shaft pos.826. They are not fixed with anything.

Then, using a screwdriver, you need to remove the bracket pos.48 rolling bearings poses.830. By the way, in a simple way it is called a “drunk bearing”. Closely removed: sleeve pos.26 and “Drunk bearing”.

Victorlab phono preamp test track on iPhone

Got to a drunken bearing

Dismantling the cylinder

A drummer poser is inserted inside the cylinder.27, from which you need to remove the rubber ring pos.73. In case of any disassembly, rubber parts must be replaced without fail.

A hinge of poses is inserted at the opposite end of the cylinder.29 and two flat pucks poses.41.

Dismantling of the intermediate shaft

The intermediate shaft is understood by removing the shaft pos.24 and pulling out from the case pos.77 “Drunk bearing”.

Bearings are removed by pullers or manually, using the device.

Malfunction of the mechanical part and their elimination

To the natural question why the punch does not hammer, there is no unequivocal answer. This can happen for reasons that are given below:

• The main function is not performed (does not hammer).

• A breakdown of any of the metal parts standing inside many models in such a sequence.

After inspection and detection of a malfunction, the worthless details change.

• Fluid flow from the cylinder due to damage to gaskets. Change the gasket.
• The getting of dirt inside. Clean the tool.
• Lubrication of lubrication. Remove the old grease and apply a new layer.
• Damage to the gear of the gearbox. After detection. Replace.
• Bearing malfunction. Replace

• Crossed a rattle or cracking due to such reasons:

• Bad lubricant. Mandatory to change to the same. It is forbidden to use solidol and other lubricants of this type.
• Crack in bearings or gears. Change.
• The details worked. For example, fingers of the switch of modes. Change the switch

• The modes do not switch due to what happened:

• Production or breakdown of the switch.

The switch needs to be replaced, but for a while you can turn a worn finger at 180 about.

Spontaneous change of modes occurs due to a breakdown of the fixator. Some people continue to work in this mode, but it is best to replace the fixer.

Uncharacteristic malfunction of the punch Bosch

Bosch perforators are very reliable. But there are malfunctions that are practically not found in practice. Below is one of them.

Bosch punch drills, but does not hammer

If the perforator stopped hammering, but at the same time allows you to drill, the most likely cause may be the destruction of a “drunk bearing”. This malfunction is not often found and it is not easy to find it.

You do not have to go to the repair workshop to eliminate it. Such a malfunction will eliminate any person who is more or less versed in mechanics.

A new drunk bearing

First you need to disassemble the punch to the intermediate shaft. The disassembly procedure is given above.

Having removed the intermediate shaft, you will get to the “drunk bearing”. The destruction of the rolling bearing is indicated by a broken clip, scattered balls, pieces of clips.

Take out a bearing, remove dirt, all parts of the destroyed mechanism.

Buy a new “drunk bearing”, and, lubricating all the details with a new grease, replace and assembly, in the sequence, reverse steps of disassembly.

Perforator device

Regardless of the functions and structures, the perforators have similar basic elements.

A simple punch device with a network drive

The barrel punch has the same main nodes.

Barrel punch with a network drive

The barrel punchoring of the main nodes

The strike mechanism of the perforator can be made in two versions:

Mechanism with a curvature-shawl mechanism

The swinging bearing is also called drunk. This mechanism is used in light and medium perforators.

Repair of a raster sleeve and shock bolt

To disassemble the ragged sleeve, you need to squeeze the spring, remove the locking ring and gear.

Rodbar’s sleeve assembled and without a gear

Rodbar’s sleeve assembled and without a gear

The shock bolt is repaired by replacing parts or changes completely if it falls apart.

There are holes in the raster sleeve on both sides, in which the locking ring is clearly visible. Small a small flat screwdriver and move the ring on both sides.

The procedure for disassembling the punch Bosch 2-26

Since the procedure for disassembling the punch 2-20; 2-24; 2-26 is almost the same, consider the sequence of disassembly on the example of the Bosch 2-26 punch.

Dismantling of the punch Bosch GBH 2-26 DRE begins with disassembling the fast-parting cartridge.

Dismantling of a quick.Parting cartridge

In Bosch perforators, two types of cartridges are most often used: SDS-Plus cartridges and SDS-MAX cartridges. The difference between them in the principle of the clamp of the tail of a working organ.

The device of the Bosch perforator cartridge is different in the design of the planting rods of the tool depending on the SDS-Plus or SDS-MAX model. In addition to the listed types of cartridges, SDS-Top, SDS-Quick cartridges are found.

The procedure for disassembling the cartridge of the perforator Bosch 2-26 is simple:

• Remove the rubber tip pos.34;
• Get out the stop ring pos.87;
• Remove the steel puck pos.833;
• Draw a conical spring pos.833;
• Gently, so as not to lose, using the magnet, take out the barrel balls pos.89.

Carefully inspect all the details of the cartridge.

SDS-Plus cartridges were developed specifically for drilling tools. The diameter of the instrument shanks is 10 mm, the length of the working tool in the range is 110 1000 mm. The diameter of the drills lies in the range of 4 26 mm.

How to remove modes switch

Having put the perforator on the side, remove the post switch of poses.832.

First, turn the switch to the “drilling” position, press the screwdriver until the end of the switch button (it is red) and turn the switch counterclockwise at an angle of 70º.

Pulling the switch handle, pull the switch handle from the body.

Dismantling of the assembly unit

By putting the punch 2-26 vertically on the handle, twist four screws poses.90 holding the cover of the body of the mechanical node.

Click on the end of the shaft of the shock mechanism and remove the lid. Black plastic cover.

Now we need to remove the barrel pos.821 and intermediate shaft pos.826. They are not fixed with anything.

Then, using a screwdriver, you need to remove the bracket pos.48 rolling bearings poses.830. By the way, in a simple way it is called a “drunk bearing”. Closely removed: sleeve pos.26 and “Drunk bearing”.

Dismantling of the stress mechanism trunk node

• Dismantling the Bosch punch stem starts from the side of the cavity, taking the cylinder from it.26 with a drummer pos.27;
• From the cavity you need to get a boiler assembly;
• From the side of the cartridge shaft, remove the locking ring of poses.85, steel ring pos.38 and one more stop ring pos.85;
• Remove the direct gear poses.22.

Dismantling the cylinder

A drummer poser is inserted inside the cylinder.27, from which you need to remove the rubber ring pos.73. In case of any disassembly, rubber parts must be replaced without fail.

A hinge of poses is inserted at the opposite end of the cylinder.29 and two flat pucks poses.41.

Dismantling of the intermediate shaft

The intermediate shaft is understood by removing the shaft pos.24 and pulling out from the case pos.77 “Drunk bearing”.

Bearings are removed by pullers or manually, using the device.

SDS Patrons (STECK, DREH, SITZT)

At the end of the 20th century, Bosch made a breakthrough and proved that the simplest design provides high reliability of the device.

Thus, the latest category of fasteners for nozzles, which everyone knows under the reduction of SDS, was born. It is deciphered like stack, DREH, SITZT. Install, scroll, fix it.

Прошиваем Bosch 7.9.7. KEFICO! SPECTRA, ACCENT, AMULET, ELANTRA разными способами!

Almost all electric perforators today use this particular type of cartridge. Most consumers and inexperienced builders can confuse the SDS-patron with fast-packed devices, since in our country many call it that. But it is worth remembering that this type of cartridge is fixed with simple adhering, and the rapidly causal device involves clamping the cartridge by rotation of the couplings.

All features of consolidation and functioning of SDS pumps are intuitively understood from their appearance, namely from the structure of the tail. You can see 4 main grooves on it. The first 2 grooves are open on the end side, the other 2 grooves are closed. Open recesses act as guides used to place nozzles. Closed grooves are designed to fix the device, for this there are special mechanisms in the form of balls inside the cartridge. When installing the desired drill, it must be carefully screwed, the mechanisms are fixed in closed excavations. This is where the fixation of the nozzle is completed.

To make the drill even easier, it is necessary to slightly grease its base. It is worth noting that with this method of fixing in the nozzle, a slight beating during rotation, which manifests itself during dry movement, may occur. This practically does not affect the drilling of the openings, but the idle movement of the drill inside the mount leads the cartridge from the shock pressure. Drill nozzles are inevitably subjected to this.

Bosch 2-20 punch diagram and designs

Repair of the Bosch 2-20 perforator will not be possible without knowledge of the design of a fixed tool.

The principle of operation of the Bosch 2-20 perforator is based on the transfer of the rotational moment from the shaft of the Rotor pos.3 to the shaft of the shock block pos.22 through the intermediate shaft pos.824, simultaneously transmitting a longitudinal pulse to a working tool.

Rotor pos.3 transfers a rotational moment to the gear of a shock.Absorbing intermediate shaft pos.824.

The scanty gear is fixed on the intermediate shaft and transfers the moment of rotation to the shaft. A drunken bearing is fixed on the shaft, receiving the moment of rotation through the clutch coupling. Due to its design, a drunken bearing transfers progressive movement to the cylinder of the stress mechanism barrel.

The design of the intermediate shaft of the perforator Bosch 2-20

The intermediate shaft of the Bosch 2-20 perforator consists of a rolling bearing node (drunk bearing), clutch couplings, a large lobby gear, and a small rejection of a cylindrical gear.

Most often, breakdowns are manifested in the wear of the clutch huts, which leads to the disappearance of the rotation of the perforator cartridge in the presence of a shock pulse.

Corrected by the replacement of the clutch coupling or the restoration of the teeth of the coupling parts.

How to make a punch boshe

Perforator, Like at least some kind of electronic tool, asks for a careful business, the use and conduct of timely prevention.

If you touch these norms, then the device can fail without developing its own resource.

Repair of a perforator with certain defects is carried out on their own, to eliminate breakdowns associated with the electronic part of the motor, the help of a specialist will need to help.

What remains to make our client a malfunction of the unit is divided into 3.5 groups: mechanical and electronic.

If any mechanical malfunction occurs in the perforator, then the presence of it is certainly by ear (noise increases, a rattle occurs).

You can also feel high vibration or a nasty odor emanating from the unit body.

What will be needed, the subsequent ones include mechanical breakdowns:

• Damage to the operating mode of the device;
• Worn elastic bands of a drummer and a box;
• Breakdown of the shock mechanism;
• Breakdown of the unit trunk on the basis of wear;
• A breakdown of the teeth of the gears;
• A breakdown of a clamping cartridge, under the influence of which a boat flies out.

Malfunctions associated with the electronic part of the perforator are also accompanied by a nasty odor of the apparatus, and sincere. It is also possible to see that the engine is rapidly heating and buzzing, without rotating, in another way with its use, smoke arises.

Electronic breakdowns of the apparatus include such as:

• The device does not cut;
• Black button breakdown;
• Wear of brushes;
• Collector clogging;
• Violation of electronic contacts;
• Figure of the winding of the stator or rotor of the electronic motor.

To eliminate mechanical and electronic defects (not counting the breakdown of the electronic fork), you can’t do without disassembling the aggregate case. Particular demand in the middle of the masters, both home and prof, are used by brands of pierce Bosch, Makita, Intercker, Energomash.

The design of units of various manufacturers is approximately similar, therefore, the methods of disassembling the devices will be similar. Alas, you do not need to disassemble the device one hundred percent, since it will be difficult to assemble it back. The photo below shows how one hundred percent punch looks like.

Bosch 2-24 \ How to change the rabbit \ restoration of the coupling \ repair of tools \ Service \ RB

The disassembly of the unit for the search for defects should be carried out carefully, with the inspection of each removed part. So that the assembly does not cause difficulties, the process of disassembly is better to photograph. If you have not found external flaws on the apparatus, then it is recommended to start disassembly with the cartridge.

• First remove the boot (1) made of rubber.
• Neatly to support, use a screwdriver remove the lock ring (2.4) and after which. A boot of plastic (3).

If the unit housing is required, then at first it is necessary to remove the switch of operating modes.

Put the switch in the position of “hit”. Usually here a place on the case is drawn a hammer. If the passage, when this mode is not, put the switch to the position “Drilling”.

To get to the electronic part of the apparatus, if there are suspicions that there is a breakdown, it is possible to complete subsequent deeds.

• Unscrew the screws holding the back cover and remove it.
• Turn out the fastener that holds the network cable.
• Next, remove the wire mounts and remove the start button.

If you need to disassemble the barrel punch, with the vertical location of the electric drive, then at first the handle is removed, and then the bolts holding the engine are unscrewed.

The main sign that it is time to change the brushes is the formation of overstated sparking in the area of ​​the electric motor collector, the frisky heating of the holders of the brushes, and the smell of Gary is additionally smell. When the brushes are not worn out, we see the spark only under them. Otherwise, a spark is visible throughout the collector circle.

The presence of a spark in the collector circle with unprofitable brushes is a sign of bearings wear, violation of the insulation of the rotor or stator, the burning of the collector records, the stator burning out in another rotor.

An additional sign that the stator burned out is the presence of sparks only under one electrode. If you have a tester, then they have an option to check the stator and rotor: measure the resistance on the rotor and stature alternately.

If it is idyntually on both windings, it means that with the stator what remains to make our client in order. If you saw the obvious signs of troubles with a rotor in another stator, you will have to carry the device to the service center during the repair.

As for the brushes, they have an option to change without the help of others.

The brushes that are installed on the movements of the perforator are 3 types.

• Graphite. Differ in durability, but since they are very solid, their rubbing to the collector does not completely happen, which negatively affects the last.
• Coal. Simply rubbing to the collector, providing good contact, but they wear out rapidly.
• Coal-graphite is an ideal option, because they are the consistency of the 2 components that complement themselves.

It is fundamentally not to wait until the engine is sparkled, and then change the brushes. A change is needed after their wear 1/3 of the face value (8 mm). Even if one brush has worn out less than the other, then both you need to change both.

Look at the state of the spring in new brushes and contact mounting. If the spring flies at the time of the engine, then it will receive significant damage. Also, if the spring is weak, then it will not be able to provide good contact.

Dismantling Bosch punch with a switch removal

For work, it is important to use a quality tool: it is more pleasant to work with this, and it has a much less often less often. But still when breakage occurs, it will be useful to know how they can be fixed on your own.

Perforator is the tool that is always useful in the household. It is used for drilling and drilling holes is indispensable for owners of housing made of reinforced concrete structures, since the drill in such conditions may be useless.

Bosch 2-26 punch rosbiranna

Oskilki order of the rosbiranny punctuator Bosch 2-20; 2-24; 2-26 is practical, however, the rosary of the rosoboring of the rosor on the Bosch 2-26 punch.

Rosbiranna of the perforator Bosch GBH 2-26 DRE COMPLED IN ROSBIANNE OF THE CARTRON of Shvidkoroz’mny.

Rosbiranna Shvidkoroz’mmal cartridge

Bosch punching punching often stalls two viscous patronas: SDS-Plus cartridges SDS-MAX. RIZNITSYA MIZH in the principle of the hindling of the tail part.

Strong cartridge of the perforator Bosch RIDELASE OF THE STRISTICS STRIZHNIV ISTRUPENT IN LASTISH VID SDS-Plus Abo SDS-MAX. KRIM of the grinding type of ammunition cram the cartridge SDS-Top, SDS-Svidko.

RIZNITSYA MIZh unusals KRIPLENNA PACH

The order of the rosbiranna of the cartridge of the punch Bosch 2-26 Force:

• Sick the humovy tip pos.34;
• Distan Steporne Kilze pos.87;
• Rymіt Staleva’s puck pos.833;
• Vityagnist conil spring pos.833;
• Acurantly, Schob is not to the rosor, the gates of the Magnit, Distant the Barel Culture poses.89.

SDS-PLUS Bistrozhmodrozhim Mago

SDS-PLUS cartridges cracked specially to ISTRUMENNA for BURINNE. Diameter Khvostovikiv Instrument Dorivnu 10 mm, Dovzhina Robocho Istrument in Diapasoni 110. 1000 mm. DIAMARIT BURIV Lie in DIAPAZONI 4. 26 mm.

Yak tsnyati moved mode

Placing the punching punching, nick.Oned a truce.832.

The spockey turn the truck in the position of the “Sverdlinnya”, rub the vicruto to the stop in the end of the Trekach buttons (overwhelming the Chervoye Caralus) I turn the truce of the opposite of the General Strika on Kut 70º.

Abducted handle handle, knit the handle of a truck with the body.

Rosbiranna unuswed shock mechanism

Putting the punch Bosch 2-26 vertically on the handle, the vicruiti Chotiri Gwinti pos.90, trimat the crush with the body of a mechanical universal.

Rub on the end of the shaft of the shock mechanism і ib. Krishka Plastmasov Chorny Komilor.

Now Treba is a dungeon pos.821 I industrial shaft poses.826. Stench noted.

Dali for the pretext of the vicurots of the trebus of the tape of the bracket pos.48 pidshiper Kochennya poses.830. Before the speech, in the simplest vin, “Padshipnik”. Post.Ilmagn: Gilsa poses.26 I “P’yanii Pidshiper”.

Get to the P’yana Pidshiper

Rosbiranna Tsilindra

Elistral Tsilindra of inserts Drive poser.27.73. When whether it is a member of the Gumovi Pidlyagayut deputy.

On the opposing Kinzi Tsilindra inserts Skarnir pos.29 I DVI Ploski Shaibi pos.41.

Rosbiranna of the industrial shaft

The industrial shaft rosobs the shaft of the shaft pos.24 I Vityagvannya Z case pos.77 “P’yanny Pidshiper”.

PIDSHIPS I will handle the nzimachi submarines, for the pre.Allocation.

Repair instructions. Replacing and connecting a perforator button using the example of Makita 2450

Most Makita perforators (in HR2020, 2432, 2440, 2440F, 2450, 2455, 2475 and 2641 models) uses a typical TG813TLB-1 switch.

To conduct his audit and/or replacement, it is necessary to prepare the following tools:

The procedure for repair/replacement of the power button on the perforator Makita 2450 is as follows:

Useful tips

Often, even professional equipment quickly fails. This is due to the operation of the tool with a significant overload of the electric motor. The power unit should not be overheated, it is periodically necessary to do technological pauses. Sometimes a serious breakdown of a perforator is a consequence of a careless handling of a tool during operation or during storage.

After each use, it is necessary to carefully clean the perforator from dust. With a soft cloth or a napkin, not only the housing of the power tool should be wiped, but also the ventilation grooves.

It is regularly carried out by inspection of coal brushes, which are a responsible part of the electrocope. They conduct current to the collector and gradually wear out during operation and require replacement.

Do not buy non.Original components of dubious quality, which can lead to more significant breakdowns.

Uncharacteristic malfunction of the punch Bosch

Bosch perforators are very reliable. But there are malfunctions that are practically not found in practice. Below is one of them.

Bosch punch drills, but does not hammer

If the perforator stopped hammering, but at the same time allows you to drill, the most likely cause may be the destruction of a “drunk bearing”. This malfunction is not often found and it is not easy to find it.

You do not have to go to the repair workshop to eliminate it. Such a malfunction will eliminate any person who is more or less versed in mechanics.

A new drunk bearing

First you need to disassemble the punch to the intermediate shaft. The disassembly procedure is given above.

Having removed the intermediate shaft, you will get to the “drunk bearing”. The destruction of the rolling bearing is indicated by a broken clip, scattered balls, pieces of clips.

Take out a bearing, remove dirt, all parts of the destroyed mechanism.

Buy a new “drunk bearing”, and, lubricating all the details with a new grease, replace and assembly, in the sequence, reverse steps of disassembly.

What malfunctions do Bosch perforators have and how to fix them with your own hands

There is nothing eternal. And the most reliable Bosch punching starts to break over time. But any malfunction can be repaired with your own hands, if you have a detailed guide to carry out repair work. Below we offer you a benefit of detection of malfunctions in Bosch perforators and a methodology for their elimination.

• Mechanical malfunctions of the punch Bosch

• The perforator stops hammering, but drill
• The perforator stopped drilling, but hollows
• Consider options in which the punch does not hammer, but drill
• Consider the options in which the punch is drilling, but does not hammer
• Consider options in which the punch does not drill and does not hammer

The main causes of breakdowns are:

• Inaccurate work with tools;
• Improper storage of a perforator;
• Large loads when working on the working bodies when you have beaten or drill;
• Overheating of the tool;
• Long work without a break;
• Non.Compliance with the terms of maintenance.

Conditionally malfunctions can be divided into mechanical and electrical.

Next, we will consider the malfunctions on their belonging, dividing into malfunctions by the mechanical and electric part.

When mechanical malfunctions appear in the operation of the tool, an outsider appears, sparking in the collector area is enhanced, the smell of Gary appears, the instrument is excessively warming, its power drops depending on the duration of the work and the impact on the material.

We will consider all the malfunctions on the Bosch 2-26 perforator circuit. The remaining models, such as Bosch 2-20, 2-24, differ in the design of the intermediate shaft, the installation of various drunken bearings.

The perforator stops hammering, but drill

The perforator does not hammer under load or in idle mode for the following reasons:

• The rubber rings of the drummer, a box, a piston were worn out;
• The roller of the rolling bearing collapsed;
• The cylinder, a strike of the stress mechanism trunk, collapsed;
• Cut the slips of the clutch mounted on an intermediate shaft;

The perforator stopped drilling, but hollows

The main reasons for which the punch is hollowing, but does not drill, this is:

• The power of the conical spring, pressing the clutch clutch, weakened;
• The stopping video does not fix the large gear of the shaft of the barrel;
• Does not hold the mechanism for fixing the tool in the barrel;
• The perforator does not hammer and does not drill.

The main reasons for which the punch does not hammer or drill are: are:

• Cut teeth on a small gear of the rotor or on a large gear of an intermediate shaft;
• The perforator electric motor does not work;
• No power supply for the perforator.

Wear of rubber rings on a drummer, boy, piston.

This reason appears gradual, as the rubber rings are worn out. At first, the blow weakens, then disappears in general.

The malfunction is eliminated by replacing these rubber rings with new.

With any repair of perforators, its components, all rubber products are subject to replacement.

When the drunken bearing is destroyed.830 The rotational movement of the intermediate shaft cannot be converted into the progressive movement of the cylinder in the shock mechanism.

Eliminated by fully replacing the rolling bearing.

The cylinder, drummer, a barrel of the trunk of a shock mechanism were destroyed

There are times when the drummer is bitten in the cylinder pos.26, which leads to the destruction of the cylinder and the impossibility of creating air pressure in the trunk of the shock mechanism. And the second reason: the destruction or breakdown of the box pos.28, leading to curvature of the part and the impossibility of transmitting an impulse impulse.Breakage is eliminated by the complete replacement of the failed parts.

Cut the slings of the clutch coupling pos.67 installed on the intermediate shaft

The malfunction is eliminated by the repair of clutch couplings or its complete replacement.When repairing the clutch coupling, worked outluded teeth are recorded. To correct this defect, a round suprafil and drill is used. The coupling is clamped in the hand, and the boys profiles are straightened with a bormashin with the corresponding suprafil. Similarly modify the slots on the intermediate shaft.

The power of the conical spring, clutching the clutch clutch, weakened

When the force of the spring pressure is pos.50 decreases, the clutch clutch slips on an intermediate shaft, without transmitting rotation from the small straight.End of the gear to a large gear posture.22 shaft barrel poses.821 shock mechanism. By the way, on different models Bosch clutch couplings are arranged in different ways.

The stopping video does not fix the large gear of the shaft of the barrel

Great gear pos.22 is attached to the shaft of the barrel pos.01 video pos.88, pressed to the bourge of the shaft with a conical spring pos.80 and fixed by the stop ring pos.85.

The reason may be a weakening of the effort of the conical spring pos.80, Destruction of the stop ring pos.85, loss of the fixing video pos.88.

The drill does not hold the mechanism of fixing the tool in the punch trunk

Bosch perforators use two types of cartridges: SDS-Plus SDS-MAX. The difference in the design of the fixing mechanism.

The reason is the wear of the antennae of the raster sleeve of the cartridge, which leads to the impossibility of transmitting a shock impulse to a working tool of a perforator.

Cut the teeth on a small gear rotor

The gears are twisted with cutting teeth on one of them, more often on a small.

When jaming the working tool and improper operation of the clutch coupling, there is a wear or complete destruction of the gears of the gears on the shaft of the perforator and the intermediate shaft.

In this case, the rotor or large gear of the intermediate shaft changes completely.

The perforator electric motor does not work

The reasons for a non.Working electric motor can be:

• Short circuit in the rotor, stature;
• Destruction of coal electric grinders;
• Weakening of the fastening of the brush holders;
• Burnout of the lamella on the rotor manifold;
• Rotor or stator windings.

Bosch GBH 2-28 DV punch instructions-Free instructions in Russian, Forum

If the instruction is not complete or you need additional information on this device, if you need additional files: drivers, additional user guide (manufacturers often make several different documents of technical assistance and manuals for each product), a fresh firmware version, you can ask a question administrators or all users of the site, everyone will try to quickly respond to your request and how could you help.

Your device has characteristics: type of fastening of drill/drill: SDS-Plus, number of speeds: 1, power consumption: 850 W, max. The number of idle revolutions: 900 rpm, max. Frequency of strikes: 4000 beats/min, max. Impact Energy: 3.2 j, full characteristics see in the next tab.

Useful files and by

For many products, for working with Bosch GBH 2-28 DV, various additional files may be needed: drivers, patches, updates, installation programs, list of error codes, electronic circuit or photo. You can download these files online for a specific Bosch GBH 2-28 DV model or add your own for free downloading other visitors.

Instructions for similar perforators

If you have not found files and documents for this model, then you can see incections for similar goods and models, as they often differ in small changes and are complementary.

Reviews about Bosch GBH 2-28 DV

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Characteristics Bosch GBH 2-28 DV

Text describing the characteristics of the device.

Damage to the perforators

Here is a list of the most frequent and common breakdowns and malfunctions of perforators. If you have such a breakdown, then you are lucky, this is a typical fault for Bosch GBH 2-28 DV and you can ask a question about how to eliminate it and will be quickly answered or read in questions and answers below.

If no breakdown from the list is higher than the description for your case, then you can add your breakdown and masters from service centers or just visitors to the site will be able to advise you. It’s free!

Elimination of other breakdowns

In addition to problems with buttons, brushes and shock mechanism, there are a number of other malfunctions that can be repaired and repaired at home. And for this you will also need the ability to disassemble a punch.

The drill was stuck

If the drill does not hold in the cartridge, then It is worth paying attention to a small metal ball. It should be replaced or fixing the spring. When the drill is stuck, the problem is insufficient lubrication.

When the drill is not inserted or not pulled out, the problem lies in small details. You should disassemble the mechanical part and see the cause of the breakdown. As in the case when the drill hangs in the cartridge, the cause of this may be a ball defect.

Stopped working

If your punch has become worse beaten, It is possible that the problem in the worn teeth of the gear on the mobile part of the engine. This could arise due to strong loads or interruptions in the work of the coupling. As with other faulty details, they should be replaced.

The drill does not hold

If during work you feel that The cartridge does not hold the drill, this means that the punch is faulty, and the best option will be turned off, since continuing work is dangerous for health.

The problem is most likely not in the drill, but in the cartridge. As in previous cases, the only way out will be disassembled and determine the cause of the breakdown.

A rattle is triggered

This ratchet is called a coupling, it protects you from a breakdown and is a warning signal that the performance of the perforator is approaching the limit. But this signal does not prohibit you to continue work, you just need to take breaks and give the device to relax. Typically, such problems arise only in cheap devices.

The peak flies out

During operation, the brick is divided into small pieces, which then find themselves everywhere, especially inside the tool. The cause of the peak departure may be pollution of the cartridge with fragments of brick. In this case, the way out of this situation is to clean the cartridge.

The main differences in Bosch perforators designs

Repairing Bosch punch, you will not do without an electrical and disassembly scheme of the tool of the model that you are going to repair.

Electric circuits of the piercing punch 2–20, 2–24, 2–26 are almost the same. Although some non.Specific differences are available.

But the mechanical blocks are equipped with details that differ together constructively. The main differences are collected in two nodes: in the intermediate shaft and shaft of the stress block barrel.

The greatest differences are presented in the designs of the intermediate shaft, the assembly of the “drunk bearing”, in the switch of modes. Unprincipled features are present in the designs of the stress block, drummer, striker.

Elimination of other mechanical breakdowns

When you fail a special mode switch, which occurs due to clogging with dirt and construction dust, it is removed according to the instructions described above, cleaned and set back or changed to a new one if it is broken.

With the loss of drilling properties and long operation of the perforator, the teeth of the gear on the rotary shaft can be worn out. The problem often arises if you use the tool incorrectly (too strong loads) or due to the malfunction and interruptions in the work of the clutch couplings.

If the drill, drill or spatula simply does not hold in the cartridge, it is necessary to disassemble it and replace the ball, restrictive ring or fixing spring. In the event of a storm stuck inside the cartridge, the reason lies either in the insufficient lubricant on the shank (it can be solved by additional spraying WD-40 under the sealing gum), or the holder is riveting.

In this case, they apply additional lubrication and after some time a drill is pulled out manually, shaking it in different directions. If this did not help, then the cartridge is disassembled and the equipment is mechanically knocked out with a hammer.

To avoid a large number of problems with the punch, it is necessary to observe the rules of its operation:

At the end of all the work, all the garbage, dust and dirt accumulated in the cartridge are necessarily removed; when drilling concrete structures, the frequency of work is observed (every 2-3 cm, the drill is removed from the wall and allowed to cool slightly); they are preventive lubrication of external and internal details of the tool, especially when its long.Term operation; observe the rules of storage of a perforator in a plastic packaging box, in a room with low humidity.

The normal operation of a high.Quality perforator will avoid technical breakdowns for a long period of time. Buy only models from trusted manufacturers and use the tool strictly for its intended purpose. If you are not sure in what place and what type of damage to your device, do not experiment with it. It is better to contact specialists or to the service center if the factory warranty is valid on it.