General recommendations for the use of a grinder - how not to expose yourself to danger.

How to teach a husband and children to fill themselves? We start with ourselves Take care of yourself first, then of others: become yourself first cleaner soul, and then try to make others cleaner. N. Gogol We ourselves must become the changes that we want to see in the world. Mahatma Gandhi We ourselves

The grinder is a useful device that should be in the arsenal of any craftsman. It allows you to perform a whole range of complex and important work however, use it with care to avoid injury. About the rules for using the corner grinder we will explain in this article.

Personal protection rules when working with dangerous tools

Correctly working with a grinder, without endangering yourself, can only be extremely collected and attentive. The device should not even be taken in hand, being unhealthy, tired and drunk. Inattention can be costly when using a sander. In some cases, negligence leads to very serious injuries, and sometimes to the death of a negligent master.

Main condition correct work with a tool - the use of glasses and a protective cover. Working with a grinder necessarily leads to the scattering of sparks, metal fragments, scale and abrasive particles. If you don't protect your face and eyes, there is a high chance of injury. It is best to use a mask or goggles. Fragments and sparks from the grinder fly along complex trajectories, therefore they can fly under the glasses if in some part they do not fit tightly enough to the body. The mask is best used with a safety net, as during operation there is a possibility of debris separating from the circle, which fly at high speed and can penetrate unreinforced protective equipment.

The first barrier between the grinder operator and the rotating wheel is the guard. In practice, the wheels often break during operation, which usually occurs due to the wheel jamming in the cut. The casing is fixed to the instrument in such a way that it protects the person from sparks and possible fragments in the event of their appearance. The cover must be fixed to the machine as securely and firmly as possible in order to completely exclude the possibility of its spontaneous rotation. Of course, working with the casing is more difficult and less convenient than without it, but removing this protective shield, you are putting yourself in unnecessary danger.

To work with a grinder, you need not only a casing and a protective mask, but also hand protection - gloves or gloves. Your hands will be very close to the spinning circle, so they should be protected from sparks and all kinds of debris. We recommend using thick leather gloves or gloves to protect your hands, cotton products are not able to reliably protect you.

When processing concrete and stone materials it is also necessary to use a special respirator - it will protect the respiratory tract from dust. All of your clothing should be wide and well tucked in, any loose piece of clothing can get caught in the high speed spinning circle and cause injury.

How to use the detachable tool on the grinder?

LBM allows you to perform different types works, process various materials and a dedicated abrasive tool should be used for each. By using the wrong circle, you increase the likelihood of it splitting and endanger yourself. Never place larger discs on the unit than specified for this model.

Small angle grinders differ from large ones in a higher rotational speed of the disc. Circles of large diameters can simply not withstand too high rotation speeds and collapse. This applies to both new circles and used and because of this reduced in size. Another reason for avoiding large circles is that to use such a disc, you have to remove the cover that protects the operator, and this is completely unacceptable. Moreover, large circles create a greater load on the tool assemblies - it wears out faster and may soon fail.

You can put the disc on the grinder if it matches the device used and is not damaged in any way. Cracks, potholes, chips and other irregularities or flatness significantly increase the likelihood of kickback and wheel clearance during operation.

For safety reasons, it is completely forbidden to install saw wheels for wood on the angle grinder. Very often, such actions lead to tragic consequences, so do not repeat other people's mistakes if your life is dear to you. You should not cut wood with a grinder for several reasons. Firstly, wood is a heterogeneous material, in which there are knots, and sometimes foreign bodies, for example, nails, because of which the circle can break at high speeds. Secondly, such work is simply impractical - due to high revolutions, the discs for wood will quickly become dull.

To safely use the grinder, after installing the disc, check the operation of the device at idle speed at maximum speed for 60 seconds. When checking, the circle should rotate freely, with minimal vibration, without touching the protective casing.

It is equally important to secure the workpieces with high quality before work. Its own weight can rarely guarantee the complete immobility of an object, therefore it is best to fix materials in a vice or clamps on heavy structures. Do not try to handle objects that are being held in your hands. By doing this, you violate two safety requirements at once, which read:

1. 1. The grinder must be held with both hands.
2. 2. The workpiece to be processed must be fixedly fixed.

Holding the workpiece with your hand increases the likelihood of the workpiece shifting and wheel jamming. You should completely avoid bending the workpiece in the cut area, especially if it can narrow the cut. This will almost inevitably cause pinching of the disc and kickback.

General recommendations for the use of a grinder - how not to expose yourself to danger?

Despite the danger of the grinder, it can be used safely if you follow safety precautions and do not make any mistakes. To do this, you need to hold the tool with only two hands. If you hold the device securely, even a kickback will not lead to strong displacement and falling out of your hands. It is also necessary to ensure that the position of the whole body is as stable as possible, without the risk of losing balance.

Operate the apparatus so that the power cord is always kept away from the rotating circle. If the cord is near, you could cut it, or it could be pulled into the blade, creating the risk of a short circuit or an abrupt stop of rotation with the tool shifting.

The machine must not be released until the disc movement has completely stopped. If this requirement is not met, the rotating disc may catch on objects or surfaces. Move from one working area it is possible to move to another place only with the device turned off, otherwise the circle may seize your clothes. In the event of a power outage, the grinder must be unplugged from the outlet, otherwise it may turn on uncontrollably when the electricity supply resumes.

Keep in mind that discs can become very hot during use and should not be touched until they have cooled completely. Make sure that all bystanders are on the safe removal from the place of operation of the tool, because abrasive particles can harm not only you, but also those around you.

To start working with a grinder - to make contact of the rotating disc with the material or workpiece, it is possible only when the spindle reaches full revolutions, otherwise the disc may jam. Machine manufacturers advise cutting so that the tool always moves in the same direction as the installed disc rotates. So you will protect yourself from a sudden exit of the circle from the cut made.

Many users do not follow this recommendation, since when the tool is held in this manner, a jet of sparks from under the circle hides the markings applied to the workpiece. If you drive the device in opposite direction, you can easily control the accuracy of the cut, but because of this, the safety violation does not cease to be. And when choosing between convenience and safety, it is better to give preference to the latter.

It is imperative to ensure the correct position of the tool throughout the entire process of using it. The cutting line should not rest against the operator, it should pass by, away from you. In case of jamming, jamming of the circle, the jet movement of the apparatus will continue to the side of the person. When cutting, you do not need to press hard on the tool, let the grinder be able to cut it yourself. A heavy load on the machine can lead to skewing and even jamming of the wheel. Your task is to direct and adjust the tool, you only need to press on it occasionally and not very hard. Never turn on the tool if the wheel is in the kerf; cutting metal and other materials in this case is likely to result in a kickback.

It is imperative to observe safety regulations during grinding work. It is not necessary to use very thin discs for grinding, and cutting wheels not intended for such work - they may break. Grinding should be done with the edge of the disc at an angle of 15-40 degrees to the surface. The tool should be moved forward and backward with moderate pressure. After installing a new, unused disk, it is better to first work with it in one direction - forward. If guided backwards, it can cut into the work surface. Once the disc has been rounded, it can be operated in both directions.

For cutting tiles, stone and concrete foundations use special circles. When working with these materials, a lot of dust hazardous to health is generated. It is best to organize automatic dust extraction using construction vacuum cleaner connected to the protective casing. Otherwise, be sure to use a respirator. To reduce the amount of dust, it is necessary to ventilate the room during work, and also suppress the dust with a stream of water, which is directed to the cut. To do this, you need an assistant.

Grinders can be used for different works, including for chipping. When cutting walls, in which there may be reinforcement, as well as elements engineering communications, you need to be especially careful and careful. A short circuit or kickback may occur if the disc comes in contact with such elements. Therefore, before carrying out work in unfamiliar places, be sure to examine the presence of communications within the walls.

There should be no flammable materials and flammable liquids inside or near the work area. Remove products and any objects that may be damaged by sparks and abrasive debris away from the grinder. If such things cannot be removed, it is best to cover them with a wet rag. In wet rooms to use the grinder, you must connect it through an RCD. Only in this way can you be guaranteed to prevent electric shock.

Never entrust work with angle grinders to unauthorized persons if you are not sure of their qualifications and ability to comply with safety precautions.

Kickback - what is it and how to avoid it?

Kickback is a sharp, sudden kickback of the grinder due to a jammed rotating circle. It poses the greatest danger to the operator, as it is usually accompanied by the destruction of the disc. When the disk is jammed, the reactive displacement of the tool is carried out in the opposite direction to the rotation of the disk. Most often, kickback occurs due to operator erroneous actions or direct violation them safety precautions.

Our recommendations will help you avoid the problem of kickback or, if it occurs, avoid severe consequences... Always use standard handles to hold the tool and do not hold it with only one hand. Stand firmly on the ground so that you do not lose control of the tool if the tool is thrown. Always stay away from where the tool will move on kickback. When the grinder moves away from you, it can bounce right into you.

Special care must be taken when processing edges and corners. Kickback often occurs at the end of the cut, when the last bridge is cut, connecting the two parts of the same object. In such a situation, in order to avoid problems, it is recommended not to bring the cut to the very end, it is better to remove the circle from the opening and cut the jumper on the back side. If the device is jammed, it should be turned off and carefully removed from the cut made.

Despite all the difficulties and dangers, you are quite able to work independently with a grinder. Just follow our guidelines, they will help you cut and sand without any problems.

The Monk Daniel the Stylite once wanted to go to Jerusalem to worship holy places.

But Saint Simeon the Stylite, loving Daniel, advised him to stay with him; Daniel, having a strong desire to see the holy places in Jerusalem and go into the inner wilderness for the exploit of silence, set out on a journey towards Palestine.

There were wars in Palestine at that time: the Samaritans rebelled against Christians, and therefore the road through that area was unsafe. Daniel knew all this, but he neglected all this and with a firm intention and fearless heart, not fearing death, he began his path, all enveloped in only one strong desire to complete his path, long outlined. Having traveled quite a considerable distance, he met a certain venerable monk, aged, handsome in appearance, with gray hair... Embracing Daniel, the elder asked him in Syriac where he was going. Daniel replied that if God bless, then to the holy places. The elder said:

That's right, you said, if God bless; now know for sure that your real journey is not with God's blessing. Haven't you heard of riots and strife in Palestine?

Daniel replied:

I heard, but I hope in God: He will be my helper, and therefore I think that nothing bad will happen to me; and even if something like that happens, I am not afraid: for "whether we live or die, it is always the Lord's" (Rom. 14: 8).

But the elder, in response to this, gave Daniel a prophetic word: "Do not give your feet to turmoil," then "the angel will not slumber and Guard you" (Ps. 120: 3).

Daniel, opposing the elder, expressed his readiness even to die for Christ during this journey.

Then the elder with anger turned his face away from him and said:

God did not command us to untimely expose ourselves to death and, as it were, involuntarily go to certain death, when he said: "When they will persecute you in one city, flee to another" (Matthew 10:23).

Daniel began to lean towards the elder's advice and said to him:

If, father, it seems to you so, I am ready to go back.

The elder answered:

I advise you not to completely abandon your decision, but only point out that it would be unreasonable for you to go there in the present unfavorable time... Now go to Byzantium, by the abundance of shrines representing the second Jerusalem, whose grace now rests on it at the command of God; there you can visit many churches and get enough contemplation of many shrines. If you decide to devote yourself to the feat of silence, whether in upper Thrace or at the very mouth of the sea, it will be salutary for you and God will help you in this. In general, beloved, one should not think that you can find God in Jerusalem, and not in Byzantium; for God is unlimited by any space.

While they thus talked with each other, the sun began to set, and on the way they met a monastery, to which for the night they had to turn off the road; they went to this monastery. The elder said to Daniel:

You go ahead, and I will follow you.

Daniel thought that the elder needed to stop for some reason, and he went ahead, and, having come to the monastery gates, sat down to wait for the elder. But since the elder did not appear, Daniel thought that he had gone to another place to spend the night. Entering the monastery, he greeted the abbot and the brethren and tasted the food offered to him. When he then fell asleep, that old man appeared to him again in a dream and again began to advise him: to fulfill what he had told him on the way, and to go to Byzantium as soon as possible. Awakening from sleep and not seeing anyone around him, Daniel wondered who it was that appeared to him: a man or an angel. And then there was Simeon, the great pillar.

After such a vision, Daniel, having committed morning prayers and wishing peace to those monks who lived in the monastery, he went to Byzantium.

(Life reverend father our Daniel the Stylite. Commemoration December 11)