How to repair yourself?
Even for professional, careful users, hammer drills sometimes break. But you can do something to correct the situation with your own hands. Without contacting specialized repair centers, it is possible to replace brushes and starters, a bearing and a switch, even a power cable. Home renovation is likely to be done with light hammer drills.
Disassembly of the punch is as follows:
- sequentially remove the end part, washer, spring and ball;
- unlock the case;
- take the ends of the wire feeding the stator;
- pull out the brush holder;
- the gearbox and the housing are spread apart so that the switch can be pulled out;
- holding the body in a vice, take out the necessary parts;
- they are replaced or cleaned;
- collect everything in reverse order.
See below for an overview of the Hammer PRT650A rotary hammer.
How to work properly?
Even the cheapest rotary hammer must be used wisely. Otherwise, he will not work even half of the due date. The most important rule is correct insertion of the drill or drill. You need to fix and remove these devices only as instructed by the instructions. When planning to use the hammer mode, it is required to apply a protective lubricant under the brand of the manufacturer of the drilling machine.
This will not affect the speed and quality of work. It is also impossible to turn on the shock mode when the working part does not rest against the surface. Air strikes are extremely harmful to technology.
When working with a rock drill, it is always best to use a safety sleeve. It is she who helps to avoid unpleasant consequences both for the equipment and for its owner, if suddenly the drill or drill is jammed. It is categorically unacceptable to put pressure on the hammer drill as a whole or on its handle. Usually they start working at the lowest speed, only then gradually increase them.
And you should also remember about such rules as:
- the perforator is cooled only by stopping for a certain time, and nothing else;
- before starting work, you should check the quality of the insulation of the case and all wires;
- it is undesirable to drill or hammer in anything without protective glasses and gloves.
How to choose?
Getting to know the models isn't everything. Be sure to study the technical nuances of the perforator, its work, before giving money for it. For beginners, first of all, you should understand: there is a direct relationship between the mass of the device and its power. There are no lightweight models capable of delivering the most powerful blow.
Special accessories are a useful addition. If the kit already includes dust-proof and vibration-limiting devices, that's very good.
As for the electric "heart" of the hammer drill, its horizontal layout is preferable for household machines. All the same, you will not have to punch 3 reinforced concrete walls every day. Therefore, lightness is much more important.
Indeed, in this case, the maximum power and the ability to drill, chisel without interruption for longer are your own earned money.
Passive vibration protection is a useful addition. Yes, it dampens only a small part of the vibrations, but it additionally reduces the risk of the rock drill slipping out of your hands.
Which hammer drill to choose for household tasks
If you want to decide for yourself the question of which rotary hammer is better to buy for your home, you should also pay attention to the location of the engine. Horizontal models, for example, have a familiar, comfortable shape for most DIYers.
If the device has a vertical engine layout and an L-shaped design, it will appear more balanced and will be more compact.It is more convenient to work with such a hammer drill in difficult positions, for example, when drilling a floor or ceiling. This is due to the fact that less vibration is transmitted to the handle here, the tool cools better and is able to withstand intense loads.
But the first of the described options is more suitable for solving problems at home.
You can also pay attention to the type of food. Equipment can be battery or electric
These two models handle concrete well. The only difference is that the battery does not require a network connection and is designed for longer work.
The battery life is limited by the battery charge. But home craftsmen quite often choose just such devices, because they are compact, cost less, which means they are more suitable for those consumers who are used to using the tool only from time to time.