The Hammer Drill Does Not Twist Under Load

How to repair a punch if it stops working

We find out the reasons why the perforator does not work; we consider different situations, the essence of breakdowns and how to eliminate them with our own hands. Why does the tool heat up, a smell appears, slips, hammers, but does not drill. Many other questions can be solved on their own without resorting to the help of a wizard.

Oil flows from the hammer drill

Leakage is a direct indicator of wear on some parts inside the mechanism. Unscrew the model and make diagnostics, change the lubricant if necessary.

Reverse does not work

The reason is the breakdown of the mode switch button. Disassemble the back panel and, if necessary, replace the contacts.

The hammer drill slips

The reason for this is a loose coupling. It is enough to tighten it or replace it.

Why does the rotary hammer heat up?

The most common reason for this is the length of the operating time and the high load on the tool. The engine interacts with the working units, as a result of which overheating may occur. When it appears, turn off the tool, let it cool down for at least half an hour.

Perforator smell

Third-party odors can occur at the time of overheating or increased load, for which the model is not designed. If it is new or only from repair, most likely, the parts simply did not get used, and this process will take time.

Barrel hammer repair

This procedure is no different from repairing a conventional rock drill. It is worth considering that the motor and shaft are located vertically.

Barrel hammer repair

This procedure is no different from repairing a conventional rock drill. It is worth considering that the motor and shaft are located vertically.

If the hammer drill hits but does not drill

  • The conical spring holds the clutch, if it looses, a problem may arise;
  • The lock roller has stopped fixing the large shaft gear;
  • The tool retainer stops working in the barrel.

In this case, it is enough to replace or tighten the problem parts, start in a gentle mode.

The hammer drill does not twist under load

Most likely, the load does not correspond to the permissible norm, as a result of which this defect occurs.

The hammer drill slips

The reason for this is a loose coupling. It is enough to tighten it or replace it.

Oil flows from the hammer drill

Leakage is a direct indicator of wear on some parts inside the mechanism. Unscrew the model and make diagnostics, change the lubricant if necessary.

Punch device, assembly diagram and spare parts list

The tool consists of a single-phase motor and a rotor. A gear located on the armature shaft is responsible for the rotational movements. Between them there are bearings, one of which is drunk, it is he who transmits the movements to the working parts.

How to repair a hammer drill if it stops working. Finding out the causes of tool breakages

The construction industry develops daily and is replenished with new tools. For several years, the hammer drill has been at the top of the power tools. In fact, this is a regular drill that is equipped with a percussion effect. Every day, every second employee faces malfunctions.

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Oil flows from the hammer drill

Leakage is a direct indicator of wear on some parts inside the mechanism. Unscrew the model and make diagnostics, change the lubricant if necessary.

The punch does not work

  • A short circuit that caused the rotor or stator to burn out;
  • Full wear of the carbon electric brushes;
  • The brush holders are loose and do not hold them;
  • The lamellas on the collector are burnt out;
  • The winding on the rotor or stator has broken;
  • Battery breakage;
  • The power cord is bent.

The winding can be made at home. If you are going to replace brushes, buy two at once, regardless of whether one or both are damaged. If a short circuit occurs, replace the burned-out parts with good ones. If the problem lies in the wire or battery, buy new ones and refit them.

If the hammer drill hits but does not drill

  • The conical spring holds the clutch, if it looses, a problem may arise;
  • The lock roller has stopped fixing the large shaft gear;
  • The tool retainer stops working in the barrel.

In this case, it is enough to replace or tighten the problem parts, start in a gentle mode.

The hammer drill does not twist under load

Most likely, the load does not correspond to the permissible norm, as a result of which this defect occurs.

How to fix a punch with your own hands

The home repair procedure is the best solution and will cost less than the services of a service center. Repairing the tool is expensive and it is not a fact that a conscientious master will come across. Before thinking about how to make a puncher, you should acquire the necessary tools, stock up on theoretical knowledge of how to disassemble and assemble a puncher. After completing the repair, start in a gentle mode.

How to work with a puncher: 7 nuances that are important to know

Even small repairs, not to mention professional construction, are not complete without the use of a hammer drill. It is with its help that you can make a hole in a stone wall or a depression in a concrete structure. Therefore, both the home craftsman and the builder should know how to work with a puncher.

Also, such a tool allows you to quickly and easily drill the required number of holes in ceramic tiles, brick, wood, metal. And additional nozzles will allow, for example, to drill the floor, compact the material, hammer in the rod and even tighten the screw.

Depending on the application and the availability of additional accessories, the rotary hammer can be used for a wide variety of construction operations. But how to do it correctly to prevent the tool from breaking down?

The Hammer Drill Does Not Twist Under Load

For what materials can the rotary hammer be used:

  1. Is it possible to tighten screws, self-tapping screws with a puncher? Whenever possible, many professional builders prefer to use a power tool that is capable of performing the functions of several types of equipment. The puncher is one of them. For quick and convenient screwing in screws or screws, special nozzles are used. Among them there are models with a limiter, which guarantee control of the recession of fasteners.
  2. Is it possible to interfere with the solution with a perforator? It is possible, and quite effective at a low viscosity of the solution (for compositions of high viscosity, it is recommended to use a stirrer nozzle and work at minimum speed). Additional arguments in favor of this use can be that the speed of rotation of the tool shaft can be easily changed. In addition, according to the principle of its operation, the perforator differs little from the construction mixer.

3. Can a puncher drill wood? Using a puncher, you can get enough quality holes. To do this, you need to use the power tool in drill mode and use special drills. The drilling speed is determined depending on the material and hole diameter.

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4. Can a puncher drill tiles? The main problem in working with ceramics is that they can crack if mishandled. That is why, when using a hammer drill, it is necessary first of all to turn off the percussion mode, and it is better to start drilling at low speeds with a gradual increase in speed.

Five. Can a puncher drill metal? Provided that a special drill is used, it is possible to create holes with this tool in almost any material. In most cases, they have a cylindrical shank and a spiral design. The material for their manufacture is high strength steel (often based on cobalt alloys). Versatile in use will be drills equipped with carbide inserts on the cutting edge.

Rock drill tips

There are several rules for operating rock drills that must be followed.

  • During work, do not press too hard on the tool to prevent damage to the drill. Power and performance will not increase from this in any case.
  • A common mistake is the desire to perform the entire operation in full at one time. The drill needs to be cleaned periodically.
  • The choice of equipment is determined by the type of work performed and the specific features of the tool itself. For example, when using one type of rotary hammer, an adapter is required to replace the nozzle, and the second has a quick-release design.
  • Mechanical damage or systematic overheating of the equipment is not allowed. When choosing, you should pay attention to models in an aluminum case, which, due to the nature of the material, always cool better.
  • When working with the hammer drill, it is recommended to wear rubber gloves, which will help to dampen vibration, despite the fact that the tool itself is equipped with special inserts for this purpose.

Rotary hammer care tips

The service life and the overhaul interval directly depend on how timely and competently the set of work on the maintenance of the perforator is performed. Much attention should be paid to the lubrication of the gearbox, especially if work is carried out with concrete structures, the drilling of which is accompanied by the formation of a large amount of dust.

A good protection against it can be the use of a vacuum cleaner; many models of power tools are even equipped with special devices for fixing the hose. It should also be borne in mind that when operating at low speeds, the equipment quickly heats up, therefore, constant monitoring of the rest and work mode is required.

After the end of use and disconnection, it is recommended to clean the tool with a soft cloth from dirt. A soapy solution can be used if necessary. Pay particular attention to the cleanliness of the ventilation openings. It is equally important to conduct regular preventive inspections of equipment.

Also, before starting work, it is imperative to lubricate the nozzle shanks. This is to avoid excessive stress on the drill barrel due to friction. If such work is not performed, then it can result in expensive repairs.

Preparing the punch for work

Pre-preparation of the tool is required in cases where it is assumed that during operation, replacement of bits will be performed. In this case, the following operations are carried out:

  1. Removing and cleaning the cartridge;
  2. Lubrication of its inner part;
  3. Installation of the cartridge with the lubricating ring shifted;
  4. Turning the cartridge for more reliable fixation;
  5. Blocking after releasing the ring.

All work in accordance with the operating instructions and safety precautions can be performed only on condition that the rotary hammer is disconnected from the mains. It is recommended to run the tool in idle mode before use. This is necessary to make sure that there is no extraneous noise, vibration while working with a drill or chisel.

Working with a punch in different modes

Drilling mode

It is recommended to start drilling at a low speed without pressing the surface too hard. After starting the engine, it should run in idle mode. This is necessary so that, in the event of vibrations, extraneous noise or smoke, react in time to a malfunction and prevent more complex consequences in the form of injuries, damage to building structures, complex tool breakage.

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In the technology of performing work, much depends on the characteristics of the material. For example, there are often questions about how to drill metal with a hammer drill. Experts recommend using only high-quality drills that are specifically designed for such operations from trusted manufacturers. In addition, the surface must be properly prepared. The hole is made in stages with a gradual expansion of the diameter to the desired size.

Impact drilling mode (drilling)

The hammer drill has become a common designation for the drilling mode among most manufacturers of construction tools. Particular attention during the execution of work should be paid to prevent skewing of the nozzle. It is also important not to put additional pressure on the rock drill, this will not increase the motor power or speed up the work.

This function is not always used. For example, before drilling tiles with a hammer drill, it is important to turn off the impact mode and prevent the drill from sliding over the surface, which often causes scratches.

Impact mode

To work in impact mode (the toggle switch rotates to the position indicated by the hammer), special chisels are used. During operation, the perforator must be clamped with both hands. In the process, the chiseling speed can be adjusted depending on the characteristics of the work performed. It is necessary to constantly monitor the tool, since situations often arise in which the drill inside the structure stumbles upon the reinforcement. If the hole becomes full of crumbs, it is enough to remove the drill in idle mode to clean it (you can also use a construction vacuum cleaner).

Bort Bws-780 Angle Grinder Stopped Working / Does Not Twist / Tool Repair / Ushm 125

The hammer drill stops hammering, but drills

  • The hammer drill does not hammer under load or idle for the following reasons:

  • The rubber rings of the striker, striker, piston are worn out;
  • Collapsed roller bearing race;
  • The cylinder collapsed, the firing pin of the percussion mechanism barrel;
  • Cut the splines of the clutch mounted on the intermediate shaft;

The cylinder, the striker, the barrel striker of the shock mechanism collapsed

There are times when the drummer bites into the cylinder poz.26, which leads to the destruction of the cylinder and the impossibility of creating air pressure in the barrel of the impact mechanism. And the second reason: destruction or breakage of the striker, pos. 28, leading to the distortion of the part and the impossibility of transmitting the shock impulse.
Breakdowns are eliminated by complete replacement of the failed parts.

The striker is jammed in the piston, the destruction of the piston

The hammer drill motor does not work

The reasons for a not working electric motor can be:

  • Short circuit in the rotor, stator;
  • Destruction of coal electric brushes;
  • Weakening of the fastening of the brush holders;
  • Burnout of lamellas on the rotor manifold;
  • Breakage of the rotor or stator windings.

The listed malfunctions are eliminated by repair (rewinding the winding manually, replacing the collector and wiring the winding leads) or replacing the rotor, stator, carbon electric brushes with new ones.
The main part of the malfunctions of the electrical part of the Bosch 2-26 rotary hammer is confirmed by increasing sparking in the collector area.

The length of serviceable electric brushes cannot be less than 8 mm. When replacing one brush, the second should change automatically.

The rotor or stator windings can be rewound independently with your hands at home.

Burnt manifold of the rotor of the Bosch rotary hammer

Cut off the splines of the clutch poz.67 installed on the intermediate shaft

The malfunction is eliminated by repairing the clutch or completely replacing it.
When repairing the clutch, worn teeth are cut down. To correct this defect, a round file and a drill are used. The clutch is clamped in the hand, and the tooth profiles are straightened with a drill with an appropriate file. The splines on the intermediate shaft are modified in a similar way.

Restoration of teeth of the intermediate shaft clutch