General basics of rock drill repair
The most common malfunctions in machine components are:
- wear of brushes;
- breakdown of the start / stop button.
In this case, the above problems may be accompanied by:
- unstable work;
- extraneous noises and sounds;
- the smell of burned wiring;
- inability to work in a given mode - crushing / drilling.
The reason for disassembling the tool is the dilapidated state of the boot of the cartridge. To avoid this, you only need to work with long drills in the future. However, the problem is not always in these details, and so that you can understand the nuances of repairing this device, in the article we will tell you what can be useful to you in this matter.
Cleaning and lubricating the rubbing parts of the mechanism is possible only when the device is completely disassembled, which, in order to avoid major breakdowns, should be carried out regularly. It is necessary to disassemble the device from the upper assembly of parts. First you need to remove the rubber tip. When you do this, you will see the lock washer. After removing it, the head and spring are removed. Take out the ball. The disassembled parts are best folded into a separate container prepared in advance so as not to get lost. The procedure for opening the case must be carried out after opening the gap in the case by at least five millimeters. The handle of the switch should be set to the “hammer drilling mode” position, then it can be safely removed. Then you can remove the case.
One of the most expensive and costly parts in the repair of a hammer drill is the so-called anchor. These are copper coils interconnected and bonded by lamellas. In the event of a violation of the insulation of copper wires, a short circuit and a breakdown of the wiring occurs, therefore, the entire part of the engine must be replaced.
Application features
It is recommended to use only native cartridges, lubricants and drills, which are provided by the manufacturer, together with the hammer drill. Cleaning, maintenance and lubrication are carried out regularly
Particular attention should be paid to the shanks.
It is not recommended to work with the tool for a long time without stopping. It should be stopped periodically to cool down. Reading reviews about the Metabo 2860 Quick perforator, you can highlight for yourself some of the features of the operation of such equipment. Consumers emphasize that when drilling deep holes, the work must be done in several stages. In this case, the drill is removed each time, which will allow you to clean the hole. If you press on the tool, the impact mechanism may wear out prematurely. This is also fraught with overheating of the motor armature.
Do not use chisel mode for too long. It needs to be stirred in a rotary mode for about 2 minutes. This will cool the tool and allow the lubricant to be distributed in the right places. This contributes to the activation of the forced lubrication system.
Reviews of the Metabo perforator say that to avoid damage to the cartridge, you should work perpendicular to the axis of the hole. Tool misalignment should be avoided. The electric motor brushes and dust cover should be inspected periodically. They are changed and put in order. Do not expect until a small malfunction turns into a real breakdown. Better to take the tool to a service center. It will cost you less.
Features of the repair of hammer drills of various brands. The main distinguishing features of the models
Perforator Caliber
This model is famous for its short-lived collector.It often overheats, a pungent plastic smell appears. Breakdowns are common. Strong vibrations, noise. Differs in a large mass.
Sparky's puncher
Brushes have to be changed frequently. The design has minor usability flaws. The on / off button burns out easily when it gets jammed. Bearings need to be changed frequently. The gearbox fails occasionally. The lubricant is constantly flowing, there is a strong overheating in the "jackhammer" mode, especially during intensive work.
Perforator Metabo
Overheating of the tool in the "drill" mode. There are malfunctions in the speed regulator. Large tool mass. There is a high probability of cartridge jamming due to dust ingress. Demanding tension.
Perforator Hilty
Differs in a large mass. Convenient design. Reliable, but sometimes the bearing sinks in the chuck.
Perforator Anchor
Differs in a large mass. Overheats during constant operation. Intensive wear of the conductive track in the regulator board, low revolutions often disappear.
Einhell puncher
Very high probability of breakdowns. Poor shifting of the side handle, frequent overheating of the tool even at negative temperatures. The fragility of the brushes. Sometimes grease starts to flow. Poor chuck clamping - the presence of play in the fastening of the drills.
Perforator Bison
Poor tool lubrication. Occasionally, there is a malfunction in the "crushing" mode. Unstable handle attachment. Uneven engine operation after a short period of time. Rapid wear of brushes.
Rotary hammer AEG
Brushes fail. The gear unit is not securely attached to the tool. There is a radial runout of the flare sleeve. Spins a peak when crushing. Frequent overheating.
Sometimes the stator fails.
Perforator Hurricane
This model is characterized by poor lubrication of rubbing elements. The rubber protective cover of the start button often breaks.
For a long service life of the tool, before work, you should always carry out its technical inspection so as not to miss any defect. Always keep the tool clean after finishing work. You can clean it from dust with a vacuum cleaner. It is imperative to familiarize yourself with the operating standards of the device, recorded in its technical passport. Store in a warm and dry place. If you do not use the hammer drill for a long time, it is advisable to place it in a sealed package. Avoid getting moisture and condensation on the body of the device.
Main types
Professional devices are more powerful and expensive. They have a variety of functions. They are durable and reliable. It is quite simple to distinguish such devices from household ones. They are usually painted in a different color and have a more impressive weight. The main difference is uptime. In duration, it reaches 8 hours. But at home, bulky heavy equipment is not needed at all. You do not have to perform super tasks in everyday life. For ordinary repairs, and for hanging shelves, a middle-class model will be enough.
Among the optimal characteristics of a hammer drill for household needs, power should be highlighted. It usually ranges from 0.5 to 0.9 kW. There should be three modes of operation. You should also be guided by the force of the blow. Typically, in household models, it does not exceed 2.2 joules. There should also be a protective sleeve in the design. It is necessary to protect the tool from jamming. To perform household tasks, you will need a rotary hammer with adjustable shaft rotation speed. The drill must be secured with a system that eliminates the use of a wrench to clamp the chuck.