thermistor, which is needed to protect against overheating (not all models have it);
The main types of batteries and their features:
Nickel cadmium. are cheaper than others, are lightweight. Minus. in the effect of memory. They need to be discharged to zero and charged to the end. If this is not done, the capacity decreases.
Nickel metal hydride. This type of memory effect is not so pronounced, therefore, such devices are more expensive. When the Ni-MH type battery is idle for more than 30 days, a full recharge is required.
Li-ion. One of the most popular types. They work poorly in frost: they discharge faster, and with regular use and storage at sub-zero temperatures their service life is reduced. But otherwise, such batteries are better than others. The high cost of Li-Ion is fully justified by the speed of charging and impressive capacity, as well as the absence of the aforementioned memory effect.
General battery charging rules
If everything is done as it should, the battery will last a long time. Here are the basic principles for properly charging a screwdriver:
1. If the battery is being charged for the first time, it must be fully discharged before use and then fully charged.
2. The temperature in the room should be between 10 and 40 °.
3. To prevent the unit from overheating, it is necessary to disconnect the battery (battery) from the charger as soon as it is charged.
4. If the screwdriver is not used for a long time, it is necessary to recharge it once a month for preventive purposes.
Video: How to Charge a Bosch Screwdriver Battery
The nuances of charging various types of batteries
Most of the features that need to be considered are described in the first section. Here it’s about how long you need to keep the power tool on charge.
How long does it take to charge a screwdriver
The indicator is individual. It varies from 30 minutes to 7 hours and depends on capacity. Usually time is written in user manuals.
Most memories are equipped with indicators, so you can see how much more percent is left until the end of the charge.
Charging methods without using a special charger
If for some reason the memory of the kit is out of order, you can use a third-party device.
It is important to consider the characteristics of the battery when selecting such a memory. Voltage and capacitance must match. Otherwise, the battery may be damaged.
Interesting: Included with the DF457DWE impact screwdriver is 2 batteries. If one is discharged, you can simply insert the second and continue to work.
If there is no charger at all, there are three alternative methods.
You do not need to use this method all the time due to mismatch of parameters. An automobile charger is suitable if it is equipped with voltage and voltage adjustment elements. It is only necessary to set the indicators correctly: the current is set as 0.5-0.1 of the total battery capacity.
An option that is suitable for almost any battery. Usually this is a model with crocodile clips. Often the user has the ability to set the required values. The method will not harm the battery, since the charging process will proceed in the same way as with the complete charger.
External power sources
The option described above also refers to the category of external devices for charging a battery. In addition, you can connect the instrument to another power source, for example, an old battery, which will play the role of a power bank. The main thing is that it be working and have identical parameters. But it requires remarkable knowledge of electrical engineering: it is necessary to create a circuit with the help of crocodile adapters. You will need a 10 amp fuse, and you also need to use wiring with an increased cross section.
Tip: If a power tool is needed to work for a long time, it is better to choose a model among professional options. Their batteries are much more powerful than household models.
Battery Storage Recommendations
For the battery to last for a long time, it is necessary to store it correctly:
So, the electric hob is connected to a specially branched outlet with a high level of grounding with a capacity of 25 to 32 A. As for the wires, they should be copper, with three cores, have a cross section of at least four millimeters. However, today electrical wiring is designed to connect four-core cables. Speaking of outlets that are designed to connect hobs, they are classified as follows:
Of course, if you have a ready-made plug, then connecting the electrical panel is greatly simplified. But in order to connect the wire to the outlet, you need to know the specifics of this process. Suppose that the stove has 4 wires (phase, phase, zero, ground), and there are 3 wires in the wall. This indicates that the stove requires a jumper between the phases on the terminal block to connect to a three-wire cable.
So, we proceed as follows: between the black and brown wires we install a copper jumper, which is usually supplied, after which we connect one of the phases to the phase conductor of the apartment wiring (it must be black, brown, white). As for grounding conductors and ground, they remain intact.
The resulting cord needs insulation. If the wires from the wall are the same color, then using a multimeter, determine where the zero and phase are.
It is important! Disassemble the socket into which you intend to connect the electric hob, and carefully check, because in some cases there is a mismatch between the contacts and wires of the tile, as a result of which after connection it may happen that the socket sparks or starts to melt.
Consider the following DIY tips for connecting your equipment:
Before connecting an electric hob, it is necessary to install an RCD and an automatic machine.
The case must be grounded, but not to the conductor from other equipment, but to those cores that connect to the terminals from the outlet. Most manufacturers offer models that already have a protective bus for grounding, which only needs to be connected to the ground wires of the apartment wiring.
Video: How to Connect a Bosch Hob
An induction panel or an oven, about the installation of which we have already written, can be connected almost by analogy with a hob electric panel. Make sure that there is no fundamental difference by reading the tips below, where we will talk about connecting the stove.
To connect the hob, you can use a PVA wire of suitable cross section.
Next, open the access panel. To do this, you need to find a rectangle on the back of the electric stove, hidden by a metal plate. Using a screwdriver, unscrew it.
After removing the metal plate, locate the terminals. Insert the cable clamp into the hole first. The cord must be held in place by the use of clamps. This must be done so that the electric wire does not fall out. Next, run the cord through the cable clamp. Wait while tightening the screws.
If we want to connect an outdated oven, then we will find 3 wires there. The latest models should have 4: 2. phase, 1. neutral, 1. ground. Their location is this: in the center there is a neutral point, on its two sides there are phase wires, under it there is a grounding point. Before connecting the wires together, make sure there is a copper strip that usually connects the grounding wires to the neutral ones. Seeing, simply eliminate it. The phases must be connected by a jumper, as we said above in the instructions for connecting the electric hob.
A necessary process when connecting to a cooking electric panel is the combination of cords. Of these, black and red are phase wires, green is grounding and blue is neutral. Before connecting the wires, unscrew the connection points and connect the wire instead. First, connect the cable in green, then blue, then already remaining (red or brown from the jumper).
Then make sure that the cord is tight. It is not desirable that it be overtightened or hung.
The difference between the electric stove panel and the gas one is that to control the first one, a computer circuit is required, which is available in the technology of the latest generations.
Please note whether the connection is firmly made, otherwise it may not be able to withstand the machine, and you will have to repair not only the device, but also all the wiring. It should also be noted that the installation of the electric hob can be done without a plug, directly to the network. To do this, remove a separate line from the junction box.
The puncher is a construction tool with which they perform mortising and drilling operations. Thanks to a special mechanism, the punch is very effective and quickly punches a hole in different materials. It can be used in work with concrete, brick, metal, wood, stone. Bosch brand rotary hammers are very common among builders and ordinary people, so it is very important to know how to repair these devices in case of breakdown.
Important Pay attention to the original models! There is a fake Bosch Hammer Drill 32 hammer drill. Beware of fakes!
with horizontal installation of the engine (the barrel and engine armature are placed in parallel);
with vertical engine mounting (the same parts are at right angles).
Electrical and mechanical parts are the main components of this tool.
The electrical part consists of:
engine control device (sometimes combined with a switch);
on / off switch;
elements that suppress interference;
The composition of the mechanical part is as follows:
gearbox, which is mounted on the motor shaft;
Various add-ons in the form of a drill, crowns, a vacuum cleaner and other details can be attached to this device in the kit.
Dismantling the punch and removing the cartridge
To repair a hammer drill, you must first disassemble it correctly. And we begin to do this by disassembling the cartridge.
Remove the rubber tip and circlip;
We remove the washer and conical spring;
We get the side balls (preferably with a magnet);
We put the lever of the operating modes in the position equivalent to the maximum, and remove the switch knob. We fix the position;
Remove the back pad on the handle and brush of the engine;
Unscrew the 4 screws near the drill to remove the front cover;
We take out the barrel and shaft, and with a screwdriver. the bracket and bearing;
Open the back cover and take out the reverse switch;
We remove the rotor, for which we unscrew the crepes and disconnect the terminals from the starter, which also needs to be removed by removing the protective cover.
Video: How to Disassemble a Bosch Rotary Hammer Reducer
Important! When disassembling, be extremely attentive to where and when you remove certain parts. Fold them so that in no case lose. It depends on whether you fold the tool back or not.
DIY Bosch rotary hammer repair
If any parts in the tool are damaged, broken, or poorly perform their function, then they just need to be replaced. If the brushes are worn out, then when parsing them, they simply replace them with new ones. The hammer drill during slow rotation of the rim, a worn out boot, defective bearings are also replaced. But there are other malfunctions that you can fix. If a breakdown of the winding occurs, then the stator and the armature must be rewound. Care must be taken to lubricate and lubricate some parts from time to time.
Repair of Bosch 2 punchers 26
Before you fix something in this model, you need to familiarize yourself with the features of the device, the circuit and the principle of operation. The rotor shaft transmits rotation to the shaft shaft through an intermediate shaft, the bearing of which directs the return movement to the shock piston.
When disassembling the barrel shaft in the impact block, special attention must be paid to fixing the spur gear. Before removing it, it is necessary to remove the 3 pins on which it is fixed in this model.
Repair of Bosch 2 24 punchers
In this bosch gbh 2 24 dsr rotary hammer, the countershaft consists of a shift part, bearing assembly and clutch. The latter spoils most often, because the teeth wear out quickly in it. Repairing this breakdown consists in correcting the profile of the teeth in engagement. Often you can see that there is no blow. The hammer can gradually stop hammering due to wear of rubber parts that need to be replaced on time. And if more force is used than necessary, this can lead to jamming of the firing pin in the shock piston.
Repair of Bosch 2-28 punchers
In this model of tool, the splines sometimes wear out. In this case, it is necessary to disassemble the gearbox (it is almost similar to Bosch 2-24, only the bearing is different). It is better to replace the entire barrel, because the strikers wear out along with the splines.
As you can see, hammer repair can be done at home with your own hands. At the same time, do not spend large sums on various types of repairs in service centers, which, as we know, are very expensive. But do not forget that you must adhere to the rules of use and safety.
I want to devote today’s article to the sore topic of summer residents and gardeners of the entire post-Soviet space "How to refill a fishing line into a trimmer." Not many trimmer manufacturers answer this question in their operating instructions. Therefore, it is difficult for ordinary gardeners to figure out how to do this correctly.
I want to start with a brief description of the technical characteristics of the trimmers.
So, trimmers are electric and gasoline. The cutting element of the trimmers can be a fishing line and a knife. The fishing line is ordinary, four. pentahedral and intertwined (in the form of a pigtail). Knives come in 2, 3 and four blade blades. Knives are also plastic and metal.
The feed system of the fishing line from the trimmer is manual, semi-automatic and automatic.
Development engineers who create new models of trimmers clearly calculate the diameter (thickness) of the fishing line and the number of knife blades, according to the power of the trimmers. Otherwise, the engine is overloaded, which as a result leads to its breakdown. And this is an additional and significant cost.
Today on the market are trimmers:
With one nozzle. only fishing line. With two nozzles. fishing line and three-four-blade knife. With one nozzle. only a three-four-blade knife.
Our Kulibins long ago learned to improve any mechanisms. So, for example, some gardeners make successful, in their opinion, replacing the fishing line with a metal cable, or fishing line. But at the same time, they do not think about the safety of their and their loved ones, because, as a cable with the power of a working trimmer, it can easily break out and not only injure the mower and others, but leave it crippled for life. Using fishing line can and gives a better effect, I have never personally tried it than fishing line for trimmer, but this work has a number of inconveniences: when it comes into contact with solid objects it dissolves or can simply be pulled out of the reel without limit.
So what is called closer to the topic. I give an example of how to fill a fishing line into a trimmer (BOSCH Art 30 trimmer). Everything is very simple. We started.
Video: How to Insert a Fishing Line into an Electric Bosch Trimmer
After you have chosen the fishing line for refueling, you need to cut off the necessary amount of fishing line, because all the fishing line in the skein is not wound into a reel.
Cut off and start winding.
Remove the coil and the protective cover from the coil.
They took off. We fix one end of the fishing line into the gap and carefully and evenly wind the fishing line.
The amount of fishing line should be such that the protective cover of the reel closes and the line on the reel unwinds itself a little.
The second end of the fishing line is planted in the hole on the protective cover.
Next, take the coil and the protective cover of the coil. We sink the end of the fishing line from the reel into the metal hole on the protective cover of the reel. Tighten the fishing line a little.
We put it all on the trimmer. Turn the coil clockwise until it clicks.
Secured. Now connect the trimmer to the network. We put the trimmer in the starting position for the job. Turn on the trimmer. The excess length of the fishing line will be cut off on the cutting blade.
That’s all starting work.
You can watch the video
A little tip. Make sure that the fishing line does not come into contact with solid objects when cutting. With this contact, the fishing line will be cut. And since, in this trimmer, the fishing line is not supplied automatically, then you have to stop the work each time, remove the reel and re-release the fishing line.
In my trimmer, in addition to the standard line for mowing the lawn, there is still a thick fishing line for mowing coarse weeds. It has the shape of a pigtail, i.e. Three fishing lines are tightly intertwined. Such a fishing line has its own reel.
Thick fishing line
It is stored at the top of the trimmer body.
Spare coil storage space
Installing such a fishing line into the reel is very simple. according to the internal circuit inside the reel. We insert the center of the fishing line with a metal mount at the top of the reel, and draw the ends of the fishing line along the grooves and bring it out.
The trimmer is a wonderful modern device designed for mowing unnecessary grass, and its main advantage is that you can use this technique in places where a regular lawn mower will simply not be able to get because of its massiveness. It is necessary to understand in more detail what kind of trimmers are, and how to choose the best option for a particular summer cottage.
What is a trimmer?
The basis of this equipment is the following elements:
an engine whose main function is the rotation of the cutting head at the end of the rod;
directly the head, consisting of a coil on which either a fishing line or a knife can be wound;
knives or fishing line rotating at high speed, which are the main cutting part of the device, about how to charge the fishing line into the trimmer, we will go a little further.
An electric apparatus is inferior in power to a gasoline one, so it is ideal for working on a standard plot of land that adjoins a house with an electric energy source. The main positive aspects of this technique are the absence of noise during operation, light weight, ease of operation and, of course, environmental friendliness.
As for gas trimmers, such equipment, of course, is more mobile, so it can be safely transported from place to place and get rid of annoying vegetation in any area. It is not necessary to use electric energy at all, which positively affects the functionality of such an apparatus. cutting nozzles can be changed while working with the most diverse weeds of their type.
One of the most common attachments is fishing line, so you should dwell on this element in more detail.
Types of fishing line for trimmers
As a rule, the separation of fishing line is based on a different diameter of the samples, which can vary from 1.2 to 4 mm. The most commonly used material is a thickness indicator of 2 mm, but in no case should we forget that the choice should depend primarily on the trimmer model.
Video: Refueling Fishing Line In Bosch Trimmer Coil Video
There is one main rule: the more power the device has, the thicker the fishing line should be.
This element can also differ in the type of its section. So, it can have a round (suitable for cutting simple grass) or square (for mowing a soft green cover) shape, sharp edges (tall grass) or it can be equipped with notches that are ideal for thin-diameter grass.
Do not forget that with the help of a fishing line it is allowed to mow exclusively grass, and for other, coarser vegetation, knives must be used.
Next, you should consider in more detail the process of how to insert the fishing line into the trimmer correctly. Indeed, it is with this procedure that many consumers often have difficulties.
How to fill the line in the trimmer?
Any machine for mowing vegetation is necessarily equipped with a coil, which, in turn, may already differ for different models with a filing system (automatic, semi-automatic and manual). It is from this parameter that it is worth starting from before deciding how to fill the line into the trimmer.
In order to fill the fishing line into the trimmer, it is necessary to take at least 5 meters of material, which is then folded in half. The center of the cutting element must be inserted in a specially designed place for this, and after that, using the visual tips on the coil, showing the direction, you should wind the cutting device. At the end of all work, the cover, of course, will need to be tightened.
Fishing line adjustment
One of the main rules when replacing and adjusting equipment is that any manipulations with the mechanism should be carried out exclusively with the engine turned off and the plug of the device disconnected from the network.
Perhaps these tips will tell you how to fill the line into the trimmer as correctly as possible and, accordingly, give your site a neat and aesthetic appearance. All that is required is to correctly select the type of cutting material necessary for the type and, of course, determine the category of the most used trimmer.
Optimum cutting width, as we have many flower beds and we need to crawl between them to maintain a neat appearance of the lawn. Not less than 32 cm, but not more than 42 cm. It turns out that 37 cm came out in the middle ground.
The presence of a grass catcher. I hate picking grass after mowing rake, let the machine do it for me;
Light weight, because if it is too heavy, it means not so maneuverable and I will get tired of mowing our site.
EXTERNAL VIEW OF THE BOSCH ARM 37 MOWER MOWER
It looks cool, even somewhat cosmic. I can’t call it compact, but nevertheless it doesn’t take up much space in the yard, especially if you remove the grass catcher.
ERGONOMIC HANDLE OF THE MOWER BOSCH
Adjustable handle for the growth of the operator (yes, I found this definition in the instructions). The husband put her under my height, the mother-in-law does not rearrange the situation, so as not to knock down. In addition, there is a lever to control the mowing height. Only 5 positions, from 20 to 70 mm. I always mow in the middle, if I set the minimum value, I just need a perfect surface, without holes and bumps, otherwise the knife will cut the ground. We don’t have such an ideal lawn, so I’ve got the mow in regime 3-4, I found it out experimentally: by convention, this is short enough, but I don’t cut the bumps.
Everything seems to be cool and thought out, BUT even if I work in gloves, then puki knock down, especially the right palm at the junction with the thumb. It’s not critical, but this area is 3-4 months per day napyvana significantly, so don’t even try to work without gloves!
For the cord there are special loops on both sides, fasten on the one with which it is convenient to mow. I usually throw the cord over the already beveled part, so as not to accidentally go over it, depending on how I go, from the other side and hang the cord. Fastens easily, but reliably:
The knife is fastened with a hex bolt; it unscrews without problems. The father-in-law removes it to straighten and sharpen. The steel of the knife itself is of high quality, for the first two months we definitely did not have to grind it, and the sharpening lasts much longer. Again, in comparison with AL-KO, whose steel was of poor quality, and almost every mowing knife required updating sharpening, otherwise the grass simply broke and crumpled.
When meeting with pebbles, notches naturally form, but in general, this does not greatly affect the performance of the device. For example, after 3 months of mowing, the knife already had the following traces of encountering obstacles:
Objectively, the grass catcher is small. only 40 liters, but this is more than some other electric lawn mowers. It is filled very quickly and actively, but the mower leaves no gaps, i.e. from the first pass collects all-all cut grass. If you suddenly notice that something remains, then the grass catcher is already full. You can check by simply lifting the lid:
INPUT DATA OR OPERATING CONDITIONS OF THE LAWN MOWER
Our site is rather big: 27 hundred parts. It should be understood that it is rather difficult to maintain a lawn in such good condition. It was easier for me when I was on maternity leave and could mow grass at any convenient and appropriate time. Now I come to the country on short visits, mainly on weekends, so it is important for me to quickly put the site in order. Now this is partially possible, so the mother-in-law also has to mow.
Hence the conclusion: the lawn in our family is mowed mainly by women.
The second conclusion: sometimes I could walk along the wet grass, because I couldn’t wait for good weather. No, I don’t mow in the rain (firstly, it is forbidden by TB, and secondly, wet grass clogs the inlet and the grass catcher does not fill up), but you have to mow the slightly wet grass.
The rest is no exotic if you do not take into account the size of the site.
Average, 27 acres at work every day for 3-4 hours are put in order for 4 days, given that we grow not only beautiful lawn grass, but also meadow grass, but also special grass that is resistant to trampling: it is terribly dense and shallow. It turns out here either to mow all days on the weekend or to break this process into stages. The indicator for such a mowing width is normal and in this respect I am satisfied.
So, let’s startfrom the cut. I am satisfied with this parameter, the grass does not crease, does not chew, it is cut off. The cut is smooth without torn edges:
Second point: processing the edges of paths, flower beds etc. In this regard, I also have no complaints. It turns out pretty neat, while without harm to the knife thanks to the limiter. For example, here is the area near the stone river:
In dense areas, or areas with hard meadow grass, the machine may lose power, this is noticeable in the corresponding sound, but it chews it all the same.
The third point: maneuverability and lightness. And this is just a song. After I got acquainted with a 40-pound gas mower, and then picked up this one again, it seemed to me like a feather. I have 57 kg of weight and I can do it perfectly even with 1 hand. It’s easy to deploy even 360 degrees. I always mow a snake in a straight line, i.e. reached the end point, turned in the opposite direction and went back. I did not have problems with maneuverability.
BOSCH WARRANTY MAINTENANCE
Even a year ago, I would have put the well-deserved 5 points and would have been unconditionally satisfied. BUT in July of this year, she suddenly refused to work. It does not turn on and that’s it. Our mowing season lasts from mid-May to mid-September, i.e. 4 full months. We bought it in August 2016. It turns out that it worked for about 6.5 months and died. SO, not a single equipment worked for us. it was at least 2.5-3 full season.
There was only one joy: the guarantee for unprofessional gardening equipment BOSCH is 2 years, i.e. Until August 2018, we could still use the repair service under the guarantee.
I must say right away that my idea of confusing myself with this was met with skepticism in the family: my husband did not want to carry a mower, rather large in size, back and forth, and he did not particularly believe in success. But I insisted on my own. I called on a hot fishing line and they explained everything to me, in general there were 2 options:
Bring the mower on your own from any of the 3 services located near Moscow (located not to say that it is very convenient)
Order free delivery of your instrument to the service.
Actually, I decided to use the second option. It seems that this offer is available only to residents of Moscow, but I could be wrong. In general, you need to fill out an application on their official website by filling out all the data on the instrument. I’ll leave a direct link to this section for you, because it is extremely difficult to find the site itself and this tab: LINK
Important! Have a completed warranty card on hand! I had it partially filled: with the seller’s seals and some data, but the serial was not entered, and I entered it myself from the sticker on the typewriter itself.
In general, everything is simple: they filled out an application, packed a tool in a box, and put a warranty in it. We had difficulties with the box, but they shoved the machine into the box from under the car seat without a grass catcher.
The courier arrived, took the instrument and that’s it. Silence. I was already mentally preparing for a verbal struggle in an attempt to prove that they say they used the tool carefully, didn’t force it much, and there were no objective reasons for the breakdown. A week passed, and there was not a rumor, and when a courier calls her husband to work, they say he brought the tool, take it.
In general, they just silently changed our engine assembly. And this, for a minute, 70% of the cost of the machine! No questions, comments or bickering. They simply took it away, repaired it and delivered it back for free. This is a service!
Actually, if not for this fact, I would be very angry and significantly reduce the overall assessment of the lawn mower, and so, the work of the service center and the maximum customer focus melted my heart
In general, I am satisfied with my purchase, the BOSCH lawn mower has a lot of advantages: it is light, maneuverable, mowing grass the first time, perfectly collects garbage from the lawn in the form of leaves and twigs, the grass catcher is very capacious. The controls are clear, simple and convenient, there are many different adjustments to tailor the tool for you and your needs. The annoying trouble with the breakdown brought some smack of disappointment, but the work of the service center and warranty service as a whole sweetened this pill. I RECOMMEND!
Video: How to Disassemble the Bosch Rotak 1400 Lawnmower
Average price: 11 957 rub.
Pluses: Lightweight, large grass catcher.
Minuses: not found.
Advantages: Easy to operate, (especially for women), lightweight, nice design.
Disadvantages: not yet discovered.
Comment: quality costs money; in this model, the costs are worth it. Mowing, including tall, dense grass. Very comfortable grip. I liked to manage, holding on to the vertical part. Hands are tired, you can change position and grab the horizontal part. The pick-up box is large enough; you do not have to shake it often. During storage it takes up little space. the handle and grass collector quickly and simply fold up. I went to the second season, very happy!) Recommended to relatives and friends.
Pluses: lightweight, good wheels
Minuses: noisy, although /. they are all noisy
Comment: good mower, reliable
Pluses: Flat bevel, roomy container, convenient to mow along the fence (mows straight close)
Disadvantages: You need to get used to ergonomics (at first it seemed a very inconvenient step-by-step system with two buttons)
Advantages: Heavy, does not jump on bumps. Good mowing. Lots of modes.
Minuses: motorized motor
Comment: Compared to other previous models, the quality is noticeably better.
Pluses: Quiet electric mower, roomy grass catcher. 37 cm knives are suitable for several Bosch models.
Disadvantages: The previous model lasted 3 years and flew an anchor on the engine. Only change the engine for 5500 rubles. meaning! bought a new mower for 8500
Advantages: Easy running, quiet, easy to clean, easy to cut. Mows everything, copes with unevenness. Excellent device, did not regret it.
Comment: There is a nuance when mowing grass that is too long: if the tank overflows from it, the grass begins to fall out. This is not critical, but it is better to look. An extension cord is required, there is a specific plug connector.
Pluses: It works quietly. Easy. The knife, in my opinion, is already dull, but mows the grass and does not chew. Easy to disassemble and clean. My darling, collects me mulch for all beds regularly for the third season
Minuses: Not very maneuverable. If small areas will not be very convenient. Well, in principle, it is not intended for this.
Advantages: does not pray grass for porridge like a trimmer, but mows it. convenient for compost
Minuses: the knife quickly dulls
Advantages: Quiet, comfortable, powerful. Before that there was AL-KO, after her mowing this sheer pleasure
Minuses: I would like a harder knife, even damaged on small pieces of wood
Pluses: Very easy to manage, just what I wanted. As soon as I turned in love with this mower. It works like a beast, mows grass above a knee and cuts it into chips. Not very noisy. I bought a wire for 50 meters already adapted to it.
Minuses: I have not seen them yet.
Advantages: Lightweight, well made, cuts well, the blades do not blunt.
Pluses: assembly. Ease of use. Noise level.
Minuses: Very soft knife. The output of grass to the tank will be functional provided that only dry grass is sheared
Comment: Section haircuts 5 acres. The lawn is not gentle, many dandelions and bumps. I took this baby to replace the cheaper noname model and immediately felt the difference in performance. Materials, mounts and ergonomics are not made anyhow, but with care for the owner. Yes, she is not a monster who will chop a large weed or molehills, but she must be watched and looked after after 1-2 haircuts. But the result justifies these efforts. It is convenient to carry, roll, store. It is not noisy, not narrow. Easy to adjust cutting height. In general, I would just like a more thorough knife (in terms of metal).
Pluses: Easy. Mows perfectly! You can mow without a bag, “take it” at a good angle and the mowed grass does not fly at you and the gap between it and the lawn mower’s body does not clog (it’s very convenient when you keep the lawn of the right height with its frequent mowing)
Disadvantages: Well, maybe once out of ten you don’t get the grass catcher into the landing method from the first time.
Pluses: I write after a year of use. Powerful, easy to drive, the grass catcher is roomy and reliable.
Minuses: Not detected
Comment: Very pleased with the purchase
Pluses: awesome! Mows dead wood and fresh (quinoa does not take the old), but mows amazingly! The grass was tall, the grass tank clogged quickly, but by doing this you allow the engine to rest during breaks to clean the tank. But mowing quickly, in one penetration, even grass. You can even manage to climb the curb and gently holding a knife over the curb to cut the grass that grows close to the curb. Very like. No trimmer needed! Thanks!
Minuses: There is no holder-clamp for the extension cord.
Pluses: Good power, copes with small bushes, works for a long time without a break, mobile.
Advantages: light, comfortable, cuts grass well, even tall.
Advantages: The wife is delighted, light, shears with dignity, a trap for moles from a thick steel wire was wound on the knife, but she didn’t do much trouble, slightly adjusted the knife with a sharpener and drove on
Advantages: Price and quality, easy handling, powerful engine
Comment: I bought for a lawn with an area of 200 square meters, as well as tall grass around a site up to 50 cm high. It copes with all the tasks with a bang.
Advantages: 15 acres in 2 hours. Unpretentious. Mowing normally even wet tall grass. Sometimes chopped grass sometimes bends. It’s better to go through your hands to remove it so that the roots do not remain. Roughness slips without any problems. I am very glad that I took the electric. Pushing uphill is not difficult
Advantages: Excellent mowing, mowing close to side obstacles.
Minuses: missing assembly instructions &# 128578; It is funny and sad at the same time
Comment: Perfectly mows any grass. He took in return the deceased gasoline. A few observations: 1. two extension cords of 25m each. enough for my eyes on a plot of 20 acres. 2. Whatever the wires would interfere with, lay out the rings in the middle of the end of the lawn, with oblique passages left and right. An hour later they will stop bothering you 3. Do not be lazy to shake grass from the collector. 4. DO NOT BE LAZY to inspect the lawn for stones and large branches. Sharpening or changing the knife is not easier. 5. After mowing, be sure to clean the mower. The grass dries up. spend 5 times more time. 6. If you have a low voltage in the network. use a stabilizer. I work in tandem with 3kW-com, always at full power. 7. If the same stone or branches hit, inspect the knife. Dumb. shoot and sharpen. Otherwise, the knife will grind the grass, and the wet mass will clog the channels. 8. Feel free to take if there is 220V. No gas, oil, etc. The total area of lawns is 20 acres. Koshu once a week, it happens more often. All perfectly.
Advantages and disadvantages
There is a nuance when mowing grass that is too long: if the tank overflows from it, the grass begins to fall out. This is not critical, but it is better to look. An extension cord is required, there is a specific plug connector.
Recommendation for users: at least once a season of use, remove the top cover and clean the electric motor of grass. Otherwise, the engine overheats and, as a result, the seat of the ED bearing and the failure of the entire unit are deformed. Repair in specialized workshops is not economically feasible.
I tried not wet grass (the weather brings) because of this, the grass container is quickly overloaded.
In general, like it. Suitable for not running lawn. Do not believe those who write that they take thick and tall grass in one pass. you need to go through dense thickets at least twice back and forth. Then shake out the grass catcher and clean the niche with a knife. To be honest, I did not believe that a machine with such grass could handle it in principle, I was already thinking of getting a trimmer. This year, I started to mow late. But here it is, an even lawn already turns green after a mowed high cover. As for the handle, which on the grass catcher, had to be further strengthened with a simple construction and self-tapping screws, now I am not afraid that it will fall off when moving a full container. The knife was already pocked with stones, removed and ground with a file.
mowing it for several years in the country, the plot is not always flat, but due to the adjustment of the knife, this is not a problem. quite large, it can be problematic to store, it stands in the greenhouse, does not interfere. knives sharpen in any sharpening, that is, a dull knife is also not a problem. good mower.
Perfectly mows any grass. He took in return the deceased gasoline. A few observations: 1. two extension cords of 25m each. enough for my eyes on a plot of 20 acres. 2. Whatever the wires would interfere with, lay out the rings in the middle of the end of the lawn, with oblique passages left and right. After an hour, they will stop bothering you. 3. Do not be lazy to shake grass from the collection. 4. DO NOT BE LAZY to inspect the lawn for stones and large branches. Sharpening or changing the knife is not easier. 5. After mowing, be sure to clean the mower. The grass dries up. spend 5 times more time. 6. If you have a low voltage in the network. use a stabilizer. I work in tandem with 3kW-com, always at full power. 7. If the same stone or branches hit, inspect the knife. Dumb. shoot and sharpen. Otherwise, the knife will grind the grass, and the wet mass will clog the channels. 8. Feel free to take if there is 220V. No gas, oil, etc. The total area of lawns is 20 acres. Koshu once a week, it happens more often. All perfectly.
I think a perfectly balanced model Price-Quality-Reliability
quality costs money; in this model, the costs are worth it. Mowing, including tall, dense grass. Very comfortable grip. I liked to manage, holding on to the vertical part. Hands are tired, you can change position and grab the horizontal part. The pick-up box is large enough; you do not have to shake it often. During storage it takes up little space. the handle and grass collector quickly and simply fold up. I went to the second season, very happy!) Recommended to relatives and friends.
I like it. Small, light, understandable.
The machine for work on a well-groomed lawn; the rains passed, the grass got out nourishing, but naturally did not mow in the rains. It is difficult for her to cut a thick and juicy grass, especially if set up shorter. We have to take breaks and slow down during work. But in general, very good. The move is easy, the quality material. For regular mowing. excellent, for tall and dense grass. rather weak.
Not a bad device, the same engine as on Viking, only the price is higher due to the brand). Very easy to operate.
Mows regularly for the third summer. The volume of about 400 square meters. Periodically point knives. There are no global complaints, given that it was bought for less than 4000 rubles. He works out his money, but if you skip mowing for a week, the whole process turns into horror. It does not cope with tall grass, so you have to mow once a week.
Pros: Quiet electric mower, roomy grass catcher. 37 cm knives are suitable for several Bosch models. Cons: The previous model lasted 3 years and flew an anchor on the engine. Only change the engine for 5500 rubles. meaning! bought a new mower for 8500
Pros: Easy running, quiet, easy to clean, easy to cut. Mows everything, copes with unevenness. Excellent device, did not regret it. Review: There is a nuance when mowing grass that is too long: if the tank overflows from it, the grass begins to fall out. This is not critical, but it is better to look. An extension cord is required, there is a specific plug connector.
Pros: Easy control, sufficient power, light weight Cons: Often have to clean. No hopper full indicator. Review: Honestly, I was not familiar with lawn mowers before. It seemed to me that I would roll it in front of me, the grass would be cut and stacked in a bunker. And I received something similar, but with some reservations. The space where the knife is located is very quickly clogged. Literally 40-50 meters and all the cut grass is pressed into a solid moist mass and covers the entire space around the knife. Clogs the hole for feeding grass into the hopper and the grass ceases to flow there. There were times when I mow grass, mow, look, and the bunker is empty. And this turns out to be clogged inlet and all this mulch fell out onto the lawn. It’s bad that there is no hopper filling indicator. Again, the bunker is full, you don’t see this, and all the cut grass falls out onto the lawn again. Therefore, all by trial and error. He squinted a little, checked the hopper, turned the mower over, cleaned the knife and mowed on.
Pros: Easy. Mows perfectly! You can mow without a bag, “take it” at a good angle and the mowed grass does not fly at you and the gap between it and the lawn mower’s body does not clog (it’s very convenient when you keep the lawn of the right height with its frequent mowing) Cons: Well, maybe one out of ten times you don’t get the grass catcher into the landing method the first time.
Pros: Convenient handle, reliable design, wide grip angle. Cons: since April we use not found Review: Gave her husband a birthday, Kosh herself)))
Pros: Lightweight, powerful, compact, convenient cutting height adjustment, a sufficiently large and rigid grass catcher. Cons: The cost is a bit upsetting. It is unsuitable for repair, since the cost of spare parts covers the cost of a new unit, not to mention the cost of the repair itself. There is not enough mulching or lateral ejection function, but I adapted to this with the help of improvised means. Review: Recommendation for users: at least once a season of use, remove the top cover and clean the electric motor of grass. Otherwise, the engine overheats and, as a result, the seat of the ED bearing and the failure of the entire unit are deformed. Repair in specialized workshops is not economically feasible.
Pros: I liked the mower. Lightweight, obedient, reliable. Cons: Not yet discovered Testimonial: I tried it on wet grass (the weather is bad) because of this, the grass container is quickly overloaded.
Pros: powerful motor, comfortable handles. Easy to change knife height. Cons: Uncomfortable to deploy. A small box for grass. Designed only for a round socket, which is not always at hand. All the time strives to run into a wire)
Assessment Pros: Lightweight, relatively quiet, copes with the work, the cutting height is conveniently adjustable. The handles are comfortable. Cons: Power is sometimes not enough on bunches of grass, in thick grass it can also jam. The handle on the grass catcher is weak. The space with knives is clogged with grass, it is impossible to clear the cracks, I will wash with a Karcher, at the risk of pouring water on the motor Review: Overall, I like it. Suitable for not running lawn. Do not believe those who write that they take thick and tall grass in one pass. you need to go through dense thickets at least twice back and forth. Then shake out the grass catcher and clean the niche with a knife.
To be honest, I did not believe that a machine with such grass could handle it in principle, I was already thinking of getting a trimmer. This year, I started to mow late. But here it is, an even lawn already turns green after a mowed high cover.
As for the handle, which on the grass catcher, had to be further strengthened with a simple construction and self-tapping screws, now I am not afraid that it will fall off when moving a full container.
The knife was already pocked with stones, removed and ground with a file.
Pros: The ability to adjust the height of the knife, a container for grass (light enough, can be easily taken out and does not crumble Cons: Small wheels, it is better for her to mow a perfectly flat surface Review: we mowed her at the dacha for several years, the site is not always flat, but by adjusting the knife, this is not a problem. quite large, it can be problematic to store, it stands in the greenhouse, does not interfere. knives sharpen in any sharpening, that is, a dull knife is also not a problem. good mower.
Pros: I am writing after a year of use. Powerful, easy to drive, the grass catcher is roomy and reliable. Cons: Not Found Review: Very pleased with the purchase
Pros: Awesome! Mows dead wood and fresh (quinoa does not take the old), but mows amazingly! The grass was tall, the grass tank clogged quickly, but by doing this you allow the engine to rest during breaks to clean the tank. But mowing quickly, in one penetration, even grass. You can even manage to climb the curb and gently holding a knife over the curb to cut the grass that grows close to the curb. Very like. No trimmer needed! Thanks! Cons: No holder-clamp for the extension cord.
Pros: light, comfortable, cuts grass well, even tall. Cons: no
Pros: The wife is delighted, light, shears with dignity, a mole trap from a thick steel wire was wound on a knife, but she didn’t do much trouble, slightly adjusted the knife with a sharpener and drove on
Pros: Price and quality, easy handling, powerful engine Cons: None Review: I bought for a lawn with an area of 200 square meters, as well as tall grass around a site up to 50 cm high. She copes with all the tasks with a bang.
Pros: Excellent mowing, mowing close to side obstruction. Cons: Missing assembly instructions laughter and sin Review: Perfectly mows any grass. He took in return the deceased gasoline. A few observations: 1. two extension cords of 25m each. enough for my eyes on a plot of 20 acres. 2. Whatever the wires would interfere with, lay out the rings in the middle of the end of the lawn, with oblique passages left and right. An hour later they will stop bothering you 3. Do not be lazy to shake grass from the collector. 4. DO NOT BE LAZY to inspect the lawn for stones and large branches. Sharpening or changing the knife is not easier. 5. After mowing, be sure to clean the mower. The grass dries up. spend 5 times more time. 6. If you have a low voltage in the network. use a stabilizer. I work in tandem with 3kW-com, always at full power. 7. If the same stone or branches hit, inspect the knife. Dumb. shoot and sharpen. Otherwise, the knife will grind the grass, and the wet mass will clog the channels. 8. Feel free to take if there is 220V. No gas, oil, etc. The total area of lawns is 20 acres. Koshu once a week, it happens more often. All perfectly.
Pros: Excellent mower. Maneuverable Mows well in size Can be compactly stored Very comfortable handles Cons: The grass container is worrying, but has proven to be excellent in a month. We will have a look. Review: I consider a perfectly balanced model Price-Quality-Reliability
Pros: Lightweight, comfortable. Cons: Not yet discovered Review: It is convenient to adjust the height. Pens are correctly made.
Pros: Perfectly mows grass, quickly, smoothly. Excellent maneuverability, convenient to maneuver around and around the flower beds. Cons: Not revealed yet! it was not possible, now in the city of Moscow. winter, grass under the snow, there is nothing to mow. WAITING FOR SPRING AND SUMMER. Review: HOW DECEMBER 24 was bought, SO MOSCOW EVERY WEEK. )))))))). This poll is just for show. What is its relevance. maybe I don’t understand what or don’t know, tell me. In general, the thing is great, we are already buying 3 copies (for 15 years!), According to our recommendations, 2 neighbors bought this model (2 years ago). Thanks.
Pros: Easy to operate, (especially for women), lightweight, nice design. Cons: not yet discovered. Review: quality costs money; in this model, the costs are worth it. Mowing, including tall, dense grass. Very comfortable grip. I liked to manage, holding on to the vertical part. Hands are tired, you can change position and grab the horizontal part. The pick-up box is large enough; you do not have to shake it often. During storage it takes up little space. the handle and grass collector quickly and simply fold up. I went to the second season, very happy!) Recommended to relatives and friends.
Bosch ARM 37 (0.600.8A6.201) reviews:
In this review, we will consider the operation of one of the most popular Bosch lawnmower models. Rotak 37. This is far from a novelty that has already managed to win the favor of many customers. The digital index of the model indicates the width of the mowed lawn in centimeters. This is the average value for the Rotak line, since all models for this parameter are in the range from 32 to 40 cm. The larger the mowing band width is, the higher the price, and the Rotak 37 model here looks like some kind of optimal choice.
In addition to the Rotak range, Bosch also has cordless lawn mowers (they can be recognized by the letters “LI” in the model name), hand-held lawn mowers and the new Bosch Indego garden lawn mower. I hope we will have the opportunity to tell you about him. But for now, let’s take a closer look at our current hero.
A properly working hammer drill is an excellent assistant in the household and in production. This versatile tool with many functions allows you to comfortably solve even the most complex tasks. If the punch is broken, it is not necessary to immediately carry it in for repair. A home foreman can independently disassemble and repair this tool. How to repair a punch do it yourself?
Perforator device and its mechanism
Unlike a drill, as well as an impact drill, a rotary hammer has an enhanced impact function, which puts it an order of magnitude higher in situations where it is necessary to use significant mechanical stress on the processed materials.
This is achieved by the design features of the punch device. The device is equipped with an independent mechanism for generating a powerful pneumatic push of the working tool, and this ability relieves the master from the use of physical effort when drilling and chiselling concrete and stone.
Sectional percussion hammer mechanism
The conversion of the rotational motion of the electric motor into the translational oscillation of the shock mechanism is carried out by creating compression between the pistons. This movement is transmitted to the drummer. The striker made of high-strength steel, in turn, sends the energy of compressed air directly to the working tool. a drill, chisel or blade. Such a device unit allows you to increase the impact power to a huge destructive force. 20 kJ.
Depending on the location of the engine, drill-shaped and barrel-shaped types of perforators are distinguished.
The first type of device is similar to a drill, in which the motor is located in the same axis as the drill.
In rotary hammers of the second type, the motor is mounted perpendicular to the axis of drilling.
Barrel perforators differ in large dimensions, but at the same time have a more advanced cooling system, which allows the tool to be used for a long time without stops. Devices in the form of a drill are much more compact, they are convenient when working in cramped circumstances, when access to the object is limited.
Hole Punch Diagnostics
If during operation, malfunctions in the operation of the rotary hammer become apparent, disconnect it from the power supply and conduct an external inspection. If no external signs of damage are found, you will have to disassemble the case and look for the problem inside.
One of the reasons for the failure of the device is a break in the power cord. In this case, the punch motor does not turn on. For its diagnosis, it is necessary to carefully inspect the cable connecting the tool to the network. It must not be damaged, broken or melted. A working power cord remains cold during operation. If the wire is not in order, it should be replaced with an equivalent one. The cross section of the conductive elements must correspond to the power consumed by the tool.
A multimeter is recommended for testing electrical circuits. Using this device, you can not only detect a power failure, but also “ring” the motor winding coils, determine the presence of voltage on the start button.
Conventionally, all punch malfunctions can be divided into two categories. mechanical and electrical.
Malfunctions in the mechanical part: the crown cannot be pulled out of the barrel, the drill does not hammer, the drill does not rotate and others
The mechanical category of malfunctions includes malfunctions that occur when the engine is running:
the drill does not hammer;
the drill does not rotate;
the crown is not pulled out of the trunk (jammed);
the chisel does not hold in the cartridge (pops up);
extraneous sounds are heard inside the mechanism, rattle, vibration.
Failures in the electrician: the motor does not rotate, spark brushes on the collector and other types of breakdowns
The following symptoms indicate problems with the electrical part of the punch:
the motor does not rotate when turned on;
brushes sparkly on the collector;
the smell of burning insulation emanates from the body;
caustic smoke comes out of the tool during operation.
In order to find out and eliminate the cause of all these phenomena, the hammer must be disassembled.
The procedure for disassembling and assembling the device
You should only start disassembling yourself if you have the proper tools and equipment. To repair the puncher with your own hands you will need:
screwdrivers with different slots;
wrenches and socket (hex) wrenches;
pullers for bearings.
In addition, replacement parts, rubber seals and gaskets will be needed. To lubricate the gears of the mechanisms you will need:
In case of self-repair of an electric motor, in addition to a multimeter, you will need:
spare carbon (or graphite) brushes;
copper wire of the required section;
Disassembly of the punch begins with the removal of the cartridge. As a rule, this is an SDS-plus system cartridge, which is disassembled with a flat-head screwdriver. In this case, the cartridge should not have a drill or a chisel.
There are times when the drill sticks and it is not so easy to get it. Then you need to gently knock the cartridge around with a rubber mallet and pour a few drops of WD-40 type grease inside. After a few minutes, try again, the drill should be easily removed. After this, you can begin to disassemble the cartridge itself. Procedure:
Pull the plastic skirt down.
Use a screwdriver to remove the rubber protective boot.
Release and remove the snap ring located behind the boot.
Remove the plastic boot, spring, retaining plates and balls.
Clean all parts from old grease and put in a clean place.
Video: how to remove a drill stuck in a cartridge
Mode switch dismantle
To remove the mode switch, you must:
Turn the toggle switch to the “strike” position (the icon with the image of a hammer) and turn it about 1 cm lower.
Release the lever from the socket.
Pull the lever towards you.
How to check the start button and brushes
To get to the collector brushes and start control buttons, you need to remove the back cover. For this, two or three screws are unscrewed (depending on the model) from the plastic case.
If the cause of the malfunction was due to the wear of the brushes, you can eliminate it by installing a new pair. The working length of the brush must be at least 8 mm. The rubbing surface. without traces of scale or chips.
The start button is checked with a multimeter. It must be remembered that the engine speed control system is also located inside the trigger. If melted plastic is visible on the button body, it should be replaced entirely, since it will no longer function properly.
Attention! It is strictly forbidden to check the operation of the button when the tool is connected to the network!
After replacing the button, it is necessary to replace the housing cover, do not forget to tighten the screws securely. Only then can the perforator work.
How to disassemble an electric motor
To disassemble the electric motor, it is necessary to disconnect the motor housing from the gearbox. Between themselves they are fastened with four screw screws. If you unscrew them, the mechanical part is easily separated from the plastic casing. When disassembling, the rotor of the motor is removed from the guide sleeve, freeing up access to the gearbox. Accordingly, it becomes possible to examine the electrical components of the engine.
Video: Metabo Bosch Makita Hammers Best
The motor consists of a movable rotor and a rigidly fixed stator. The rotor rotates under the action of an electromotive force arising on the windings, consisting of turns of a copper conductor. Inspection of the windings is to determine the integrity of the insulation, the absence of a short circuit between the turns. This is done with a multimeter by successive measurements of resistance on the lamellas. In the event of an interturn short circuit, the anchor must be replaced or repaired. Stator windings can be rewound independently at home using a special template.
The anchor, as a rule, changes as a whole, together with bearings and an air intake plate.
How to disassemble and check the gearbox: how to remove the plastic case, remove the “drunken bearing” and other elements
In order to determine the malfunction of the gearbox, it must be completely disassembled. To do this, the plastic case is removed, the gearbox is thoroughly cleaned of old grease. From the gear case are disconnected:
drive gear shaft;
sleeve with a piston.
The floating bearing, also referred to as the “drunk bearing”, is mounted in the aluminum gear housing with a staple, which must be pressed with a flat screwdriver. The released bearing is removed and replaced if necessary. In addition, you should pay attention to the fact that inside the "drunken bearing" is a needle bearing on which the drive gear rotates. When the hammer is in impact mode, it experiences heavy loads, and therefore often fails. The new bearing is purchased separately or assembled with a gap.
The raster sleeve contains an impact bolt, which is mounted inside with a metal retaining ring. On the sides of the sleeve there are two technological holes through which access to the locking mechanism. After the ring is removed, the impact bolt freely falls out of the sleeve. Inside it is located directly the drummer made of high alloy steel.
When repairing or replacing an impact bolt, it is also necessary to replace the rubber sealing bushings, which ensure the tightness of the mechanism. All parts of the hammer are subject to heavy lubrication with special grease.
In the plastic casing of the gearbox at the output of the raster sleeve there is another needle bearing, which must be well lubricated.
Video: how to fix a punch and replace an impact bolt
Possible malfunctions, causes and solutions
To repair the punch with your own hands, you must first determine the external manifestations of malfunctions.
The punch does not hit
If the puncher stopped beating when switching to impact mode, but the drill rotates, it is most likely that the floating bearing is damaged. The solution will be to replace it with a new one.
The second possible reason is the disruption of the shock mechanism. Often during overloads in work, the steel hammer strikes, this first leads to a weakening of the impact, and then to its complete absence. The striker must be replaced.
The third probable cause is wear or damage to the piston group of the perforator. The sleeve and piston should be replaced.
The rotary hammer does not spin or drill
If the chuck does not rotate when you press the start button, the cause can be determined by sound. If the electric motor is buzzing, but does not turn the cartridge, most likely, something does not allow the rotor to rotate inside the gearbox. What happened to the engine will have to figure out by disassembling the mechanical part of the tool.
If the engine does not hum when turned on, it is more likely that the motor has failed. Opening the lid of the device, it is necessary to determine what exactly led to this phenomenon. This can be an open circuit, a breakdown of the start button or a short circuit in the coil windings. With the help of a tester, a specific reason is determined and appropriate repairs are made.
The drill does not hold in the cartridge and flies out
Incontinence of tool accessories can occur during continuous operation. The drill or chisel inserted into the cartridge does not hold and flies out during operation. With such a tool it is not only impossible to continue chiselling, it is also very dangerous. a chisel that has flown out can cause injury.
The reason for tool incontinence lies in the wear or breakage of the cartridge. The cartridge must be disassembled and determined what the problem is. The balls may have deformed, a workout has appeared on the restrictive ring, or a fixing spring has slipped. Usually, after replacing a damaged part, the cartridge starts functioning normally again.
Video: why drills fly out of a punch
Brush sparking is a fairly common occurrence when using the tool in dusty environments. As a rule, sparking is a consequence of the development of the material of the brushes themselves. Replacing the situation with new ones will help to correct the situation; sparks will no longer fly out.
If not, the cause must be sought in the stator or rotor windings. It is possible that a large amount of dust penetrating the engine abrased the protective varnish covering the copper conductors. And this entails a short circuit. The presence of inter-turn circuit is checked by electrical devices (multimeter).
Preventative maintenance of the tool: replacing the brushes, lubricating the bearings of the rotor working shaft and additional varnishing of the windings on the coils will reduce the likelihood of breakage.
In addition, it should be borne in mind that dust can adhere to the grease of the bearing located near the collector. To prevent this, the collector is degreased with a swab dipped in alcohol or solvent.
The puncher is very hot
If the rotary hammer overheats during operation, this is a clear sign of a malfunction in the normal operation of the electric motor. First of all, to prevent overheating, the operating mode of the device must be observed:
pause at regular intervals;
after loading give the tool the opportunity to idle.
When drilling, it is recommended to use a periodic mode: apply maximum power no more than 1 minute, then turn on idle for 3-4 seconds.
If the case temperature does not decrease, then it is necessary to revise the electric motor. Having felt a characteristic odor from under the instrument cover, you must immediately stop working and disconnect the device from the network. It can be disassembled only after complete cooling.
The hammer does not hold a cartridge
Sometimes there is a situation when a cartridge flies with a snap on a working punch. This is due to wear on the holder housing of the cartridge at the end of the raster sleeve, which is a snap ring. When it breaks, the fixation is broken and during the push a rubber boot flies, followed by a spring and balls.
You can restore the cartridge to normal operation by installing a new retaining ring. This is done quickly and does not require any additional devices other than a conventional screwdriver.
Replacing the main components of the hammer drill
The replacement of key elements is best done before the part becomes worthless. This will protect the tool from more severe damage, the correction of which will cost more and take more time. Most often you have to perform a replacement:
How to change bearings
If during a routine inspection the grease is visible on the bearing, it cracks or crunches when scrolling by hand, this means that it is time to replace it. Dismantling of the bearing is carried out using a special puller, consisting of a screw part and a device for gripping the housing of the bearing sleeve. Tightening the thread creates a force that removes the bearing from the shaft.
The installation of a new bearing at the workplace is carried out with a rubber or wooden hammer. When installing, it is important to prevent the bearing axis from skewing with respect to the shaft axis. Lubricate the part after installation.
How the start button changes
To replace the start button, you must remove the cover that covers the electrical equipment of the punch. Then you should disconnect the contacts of the conductors connected to it and pull out the button housing from the seat. In this place, install a new button, connect the contacts and assemble everything in the reverse order.
How to remove and change brushes
The replacement of the carbon brushes of the collector is carried out by an electric screwdriver. If you unscrew the lid, access to the brushes will appear. Each part is removed in turn from the nests of the brush holder. In some models, the device of the clamping mechanism differs, as a rule, this is a spiral spring, which must be removed during replacement.
Attention! Before replacing the brushes, the hammer must be disconnected from the power supply.
How to replace a cartridge
In most cases, the cartridge can be repaired. If the wear of individual parts has exceeded the permissible limits or the rubber boot and the plastic skirt are damaged, it is advisable to change the cartridge as a whole.
The procedure for replacing the cartridge is clear from the above procedure for disassembling the punch.
Features in the repair of barrel drills
All the described procedures for assembling and disassembling the mechanisms of perforators are true for its barrel version. However, there are several nuances that must be considered when repairing it. The vertical arrangement of the engine at right angles to the impact mechanism somewhat changes the disassembly order. So, to gain access to the gearbox and piston, it is necessary to remove the plastic cover located in the upper part of the tool case. This facilitates the repair of the mechanical part of the device if the shock function suddenly disappears.
Access to the electrical part of such a perforator is carried out after removing the lower casing. And the replacement of the brushes is simplified, since there are holes on the sides of the glass through which they can be easily removed.
It should be noted that many professional barrel drills do not have a drilling mode. Since their purpose is to a greater extent in drilling and chiselling of heavy concrete surfaces, they are equipped with an SDS-max cartridge with a shank of 18 mm. There is no fundamental difference in the design of the SDS-plus cartridge, but the dimensions differ markedly. L-shaped punchers are recognized as more reliable in operation and belong to the rank of a professional tool.
Video: how to repair a vertical hammer drill
Routine Care and Storage
In order for the tool to serve for a long time and in good condition, you need to follow simple rules.
Before starting work, conduct a quick inspection of the technical condition of the tool. In no case do not ignore the signs of a malfunction, if any.
At the end of work, clean the hammer from dust and debris. It is advisable to blow a stream of air from the vacuum cleaner.
When transporting in the cold season, before starting work, give the device at least 20 minutes to “acclimatize” the device. The grease should thaw and become elastic.
Work in compliance with the operating standards described in the technical data sheet of the tool.
Store the hammer in a dry and warm place. For long-term preservation, it is recommended to pack in a plastic bag and a cardboard box. Prevent moisture from entering electrical parts, including condensate from the air.
Aware. means armed. Knowing the intricacies of the device of the mechanism of perforators, you can repair the tool yourself and in the shortest possible time. However, if you timely look under the casing of the punch, clean and lubricate the mechanisms, then it is quite possible that you will not have to resort to repair at all. Regular maintenance of the instrument will help extend its life.
The presence of an angle grinder in the household makes it easy to solve the problems of processing solid-state surfaces in the repair process. In addition, this equipment, also known as the “angle grinder,” may be needed in locksmith events, as well as when removing unwanted raids. Today there are many models of angle grinders from different manufacturers, but the choice is recommended to make in favor of reputable companies. These include the Bosch GWS 850 CE Professional, which comes in a wide configuration, is characterized by build quality and reliability. Despite positioning as a professional unit, the angle grinder is quite suitable for private needs. The tool is not difficult to handle, but a set of useful options and high performance will not be superfluous. However, this model should not be overestimated either, as competing grinders also have something to offer.
The device is presented in the line of professional equipment, which is designed for a wide range of operations. In particular, the Bosch GWS 850 CE angle grinder handles the processing of metal materials, stone and wood. The operator will be able to perform cutting, grinding, painting, and also remove traces of paintwork and rust. High power helps the instrument to perform the listed actions qualitatively. However, this does not affect the dimensions and ergonomics of the device. The user can easily manage all the capabilities of the unit without outside help. of course, basic training and knowledge of the handling of an angle grinder will still be required.
In addition to compactness and maneuverability, the device will please the owner with electronic filling. Actually, the introduction of control systems with a hint of intelligence has long been practiced by other manufacturers, but this concept is implemented most successfully and without serious errors in the Bosch GWS 850 CE angle grinder.
Not only advanced electronic systems, but also the basic technical potential speak of the accessory of this unit to professional models. So, the German angle grinder has the following characteristics:
The power potential is 850 watts.
The number of revolutions. a range from 2 800 to 11 000 with the possibility of adjustment.
The size of the grinding wheel in diameter is 12.5 cm.
Grinding spindle thread. M14.
The length of the spindle thread is 2.2 cm.
The mass of the device in full is 2.6 kg.
The mass of one tool is 1.6 kg.
The main thing that the tool pays attention to is a high level of power and an extensive speed range. Thanks to these characteristics, the Bosch GWS 850 CE angle grinder shows its effectiveness even when working with stone surfaces.
Features and benefits of the model
The user controls the instrument using an electronic settings system. Compared with the adjustment in traditional models, this innovation allows you to set the machine optimal parameters for working with a specific material. In addition, the Bosch GWS 850 CE is equipped with a soft starter. This means that a sharp start of processing is excluded, as a result of which the largest number of errors are made. The user of this angle grinder will start work quietly, slowly and accurately. To ensure stable processing in the future, the device is also equipped with a current limiter, which will eliminate the negative effects of voltage drops.
Video: Bosch 850 Angle Grinder Adjustable
So that the operator can easily and quickly change the components of the machine, a fixed spindle is provided in its design. Facilitates maintenance operations and the location of carbon brushes with direct access. To increase the overall structural strength, the Bosch GWS 850 CE angle grinder was provided with reinforced plastic and armored winding. On the one hand, protective barriers protect the user himself, on the other hand, they increase the tool wear resistance.
The manufacturer strongly recommends keeping the tool clean and in good condition. For this, it is necessary to use work elements that correspond to the characteristics of the material and processing conditions. It is also necessary to regularly check all slots and ventilation openings of the device, since their contamination can lead to breakage directly during the operation. In case Bosch GWS 850 CE spare parts or accessories are required, the manufacturer’s service department provides original components upon request. In addition, the user can get a wiring diagram of the device. then, in accordance with it, independently determine the malfunction and eliminate it. However, without appropriate preparation, such actions are not recommended.
You can start work if several conditions are met. Firstly, the tool must be in good condition, and all its components and functional parts must be correctly selected from the point of view of the upcoming processing. Secondly, the workpiece must be securely locked. During operation, the Bosch GWS 850 CE angle grinder must not be subjected to excessive pressure. Even coarse abrasive work should be carried out with moderate tension, correctly grasping the handle of the tool. After the operation is completed, it is not necessary to turn off the machine immediately. You should leave it idling for a few minutes. This must be done, as sudden changes in voltage in the mechanical elements adversely affect the durability of the device.
Each material has its own processing characteristics. For example, in the process of cutting metal should lead the working body against rotation. This will bring the Bosch GWS 850 CE to the end of the intended section without leaving the laid line. In the case of stone, another nuance is important. The dust generated is dangerous for breathing, therefore, an effective suction of dirt should be provided, and work must be done in a respirator.
Almost all Bosch angle grinders are renowned for sophisticated ergonomics in every way. And the adjusting capabilities, and the device handles with protective coatings cause only positive feedback. Despite its high performance, the power tool can be operated even with one hand. this is evidenced by user experience. In terms of the direct function of the processing machine, the Bosch GWS 850 CE also shows its best. Opportunities for working with stone and metal are implemented in accordance with advanced German standards.
Professional equipment is not cheap. The difference with a budget power tool can be several thousand rubles. However, in the case of the Bosch GWS 850 CE, the price is quite acceptable and averages from four and a half to five thousand rubles. Given the high level of the manufacturer, the considerable power of the device and acceptable functionality, the price really looks attractive. But, with a detailed analysis, the angle grinder all falls into place. In addition to electronic adjustments and a really high-quality housing, the German company does not offer anything special. Therefore, the price justifies the purchase, but no more.
If you need a modern functional tool for periodically solving simple problems at home, then the modification of Bosch GWS 850 CE Professional may be one of the best options. The tool is easy to use, convenient and safe. In addition, the ability to process metal and stone makes it almost universal in terms of operation. However, if you plan to purchase an angle grinder for permanent work at construction sites, you will have to think about it. If we talk about the purely professional qualities of the device, it will not please anyone with anything special. Sufficient power, functionality at an average level. these same qualities are provided by less famous models of the segment. Ergonomics can be called the only trump card of this angle grinder, so if a short cable does not bother you, then you should consider this option.
The modern market for building power tools offers a very large selection, both in terms of the brands presented, and in terms of specific models. But which brand is better, only experienced professionals know. And this is a big problem. a beginner who made the wrong choice can lose not only his money, but also something much more. Since poor-quality construction or repair work in some cases leads not only to injuries and financial losses, but also to deaths. And so that this does not happen, the tool used in such robots must be of the best quality.
For example, you can compare Bosch and Makita for the brands of rotary hammers, grinders and screwdrivers they sell.
In this market segment, you can compare the models BOSCH 2-24D and Makita HR2470.
As you can see from the table, the difference between the models is very small. However, for the sake of fairness, it should be noted that in the BOSCH 2-24D, a chiseling function is better developed. In contrast, we can say that the Makita HR2470 is equipped with special carbon readouts that increase the service life, and this model is also easier and faster. What is more important for professional use, since it is important during long work and will save in the future. Therefore, in this example, the last mark wins between bosch or makita.
Bosch or Makita angle grinder, which is better?
Moving on to the next pair, this time compare the Bosch GWS 850CE and Makita GA5030.
In this comparison, the GWS 850CE looks like a clear leader because of its greater power, but there are a lot of complaints about it. In particular, to a too hard switch, as well as to the factory lubrication of the gearbox. The latter applies only to the Russian assembly. In addition, professionals blame for the lack of a complete set of this model.
Regarding the model Makita GA5030, it has a clear advantage is a small weight, due to the small size of the tool. Thanks to this, the hands are not so tired. Otherwise, these angle grinders are almost identical in terms of performance and functionality. Therefore, choosing only between them is difficult to point out the unique advantage of a particular model. However, if you take the approach, the choice again is inclined in favor of Makita, because of the supremacy of simplicity and convenience over purely technical characteristics.
Makita or Bosch screwdriver, which is better?
When comparing screwdrivers of these brands, perhaps you should not resort to the previously selected method, because if you compare, you need twin tools. And in this case, they are difficult to pick up, except that the Bosch GSR 10.8-2-Li and Makita DF330DWLE models. But these are tools of old models and their technical characteristics are already outdated. Therefore, comparing screwdrivers it will be better to summarize the pros and cons of Bosch or Makita.
Bosch brand features:
Germany. Assembly, as a rule, Malaysian;
Basically three year warranty (one year in makita);
The best performance characteristics and, as a consequence, more weight.
Makita brand features:
Japan. The assembly is usually Chinese;
Affordable prices (compared to Bosch).
As you can see the difference between the brands in their approach. For Bosch, this is German precision, reliability and power. Makita is characterized by convenience, economy in terms of price and excellent equipment. In other words, the former are guided by the instrument itself, and the latter by the one who will use it. That allows you to give a clear answer to who is better. Namely:
If the tool is needed for a beginner and not for frequent use, then Makita should be chosen.
While professional builders are better off choosing Bosch, a Polish 3 year warranty and reliability are more important when using power tools permanently.
Which screwdriver is better to choose Makita, Hitachi or Bosh?
Video: Bosch Screwdriver Or Makita Which is Better
Each owner of his home and a professional builder want to have a universal screwdriver in the house with good technical characteristics. Professionals need a versatile tool that has great power, good equipment and the maximum number of settings. Manufacturers offer various models of screwdrivers. The MAKITA BHP442RFE and BOSCH GSR 10.8-2-LI models have similar characteristics. But, the most convenient to use, is the HITACHI DS12DVF3 cordless tool.
One of the drawbacks of these models is the lack of battery power, so they are charged when the instrument is completely discharged.
The tool, of a high price category, has a lithium-ion battery, one of the most popular models. The screwdriver, quickly recharges, has a pulse charger, has 16 steps for setting torque. The advantages of the tool are long-term operation without recharging, it is very functional, it is equipped with a backlight and a motor cooling system, it has a small size and weight. The maximum number of revolutions is 1300 per minute. The battery is able to charge in 22 minutes.
The tool, a relatively low price category, is intended for professionals, has two nickel-cadmium batteries, an additional flashlight. The design of the tool protects it from shock when dropped, the keyless chuck is included. The screwdriver has the function of smoothly adjusting the speed, the maximum speed of 1100 per minute, which allows you to work comfortably. The tool is equipped with 22 steps of torque, the charger is included in the package.
BOSCH GSR 10.8-2-LI
The professional tool is very compact, has a charge indicator with LEDs, is equipped with all the necessary functions and additional settings. The maximum speed of 1200 per minute. A screwdriver has a battery that is able to work four times longer than previous models, has 25 steps of torque. One of the functions of the tool, protecting the battery from overheating and full discharge, has an LED backlight. The screwdriver cable can be connected to the USB port, the tool handle is equipped with a shock-absorbing gasket, a quick-clamping chuck is included.
Makita or Bosch. which is better?
When choosing a hand tool, there is a dilemma today. By and large, there are two leaders on the market who do not want to give in to each other “not a span”. We are talking about such venerable manufacturers as Makita and Bosch. In specialized forums, disputes are constantly flaring up, which translate into intense discussions. Someone assures that better Makita tools do not exist. Others claim Bosch reliability and ergonomics. On whose side is the truth?
An authorized Makita dealer is able to provide a wide range of equipment on favorable terms. Bosch prices are slightly higher. This is understandable, because most of the technical innovations that are used by many brands in hand tools were first used in Bosch.
Categories that Masters Hunt
In fact, in order to get a positive rating, a tool must have only a few categories:
According to the first indicator, Makita wins unambiguously. Regarding the resource, everything is not so simple. The fact is that Bosch has two lines of tools. household and professional (yellow and blue).
Makita has an exceptionally professional line of tools. But let’s not forget that back in the early 90s, Makita created a subsidiary company Maktec.
It is she who sells household tools. It turns out that manufacturers are equal in this category.
Any professional repairman will confirm that the design of most Bosch equipment is more complicated. But it provides somewhat more functionality. In comparison, Makita is easier. However, this simplicity provides a huge resource. the tool simply does not break.
The possibility of continuous work is very important.
Regardless of whether a professional tool or a household one, if long work is required, the master should be able to carry it out. This indicator largely depends on the ergonomics of the instrument.
Any tool (unless it is pneumatic) has a very significant weight. And if, for example, it is necessary to perform work under the ceiling, holding the tool on half-extended arms, you get tired very quickly.
But due to the use of special handles, the tool can be taken differently. Due to this, fatigue in the hands accumulates much more slowly. In terms of ergonomics, both brands are also equal. So it turns out that with a minimal advantage, Makita prevails.
Find out which screwdriver is recommended for purchase.
The experienced master will issue his verdict in the ongoing dispute between adherents of Bosch and Makita:
Bosch or Makita screwdriver which is better. which screwdriver is better than Bosch or Makita? 2 answers
In the Other services section, to the question of which screwdriver is better than Bosch or Makita? the best answer given by the author Magomedov pyrmagomed is that Bosch is no better. Judge for yourself. Bosch does everything at once, and Makita is just a tool. My friend is engaged in wood. So he took makita to himself and presented it to me for the DR. I use and am very satisfied. Charges in 2 hours. Very ergonomic. Although Bosch, in principle, is also a good tool.
When the batteries fail, you have to think about how to remake a 220 volt screwdriver. Replacing an energy source is sometimes too costly and troublesome. Some types of batteries are almost impossible to find on sale.
The home foreman rarely uses hand tools. The cordless screwdriver is idle for a long time. And during this period, an arbitrary discharge occurs in the power source, which leads to changes in the internal structure.
By remodeling a 220 Volt screwdriver, the home master gets these advantages:
no charging takes time;
storage does not entail violations in the design of the instrument;
mains power provides constant torque.
The minus of the converted screwdriver is one: binding to the mains.
Important! A battery that has been disassembled and removed from the housing must not be thrown into the trash. It is disposed of in specialized services.
What will be needed for alteration
In the process of work you will need:
Charger included with the cordless screwdriver
electric cable (multicore);
worn out battery.
In addition to the above, it is necessary to prepare an insulating tape, a screwdriver, a soldering iron, solder and phosphoric acid for soldering.
Video: Bosch Screwdriver 12 Volt Alteration
The procedure is as follows:
Disassemble the battery: unscrew all the screws hidden under the stickers. The batteries inside are interconnected. Two wires are suitable for them: red () and black (-).
Cut wires from batteries. It is necessary to cut off precisely from the elements, and not from the battery contacts.
Connect the wire to the open contacts of the charger by soldering, having previously treated the brass terminals with phosphoric acid. This will ensure a reliable connection between brass and copper cable.
Insert the load as a counterweight into the housing where the batteries were located.
Solder the battery leads inside the case to the free contacts of the cable, observing the polarity. If the polarity is violated, the tool will work, but rotate in the opposite direction.
Plug in and check operation.
Additionally, make a hole for the wire in the screwdriver case on the left side. To ensure a snug fit, make a “lock” of insulation tape.
Power Supply Recovery
If the power supply is inoperative, external sources are suitable for replacement:
power supply from a PC or laptop;
Alteration of power supplies from any other devices consists in connecting a low-frequency cable to the charging outputs. Reliable and durable operation will provide a power supply with a capacity of 300. 350 watts.
Chargers from laptops with an output voltage of 12 to 19 Volts are suitable for resuscitation of a tool. In this case, the output plug is removed, the wires are stripped and soldered to the cable of the desired length.
A reliable option for long-term operation is a computer PSU. Its advantages are the presence of a cooler in the design, which prevents the transformer from overheating.
Remaking a 220 volt screwdriver is quite simple. The procedure does not require material costs. The converted tool will serve more than one year, provided that the master does everything right.