Which Way To Unscrew The Nut On The Angle Grinder

Which way to unscrew the nut on the angle grinder

And check again. by disconnecting the angle grinder from the mains and disassembling the structure on the spindle. It should be something like this:. a washer (with slots fixed on the axis and a projection for the diameter of the disc). the disc itself (which rests on the washer and is centered by the projection). a nut (which presses the disc with its flat part). Collect all this without effort and try to turn the disk in the direction opposite to its rotation with your hand (i.E., simulating its behavior in real rotation). the nut, when rubbed against the disk, should tighten. If so, it is not clear what and at what moment is unscrewed.

PS And the profile under the gypsum board is more humane and faster to cut with scissors!

And what kind of balgarka is this? Maybe it’s done so badly that you can’t really tighten it? Or, for example, when starting and stopping, she unscrews the nut itself (if it is absolutely cheap).

You can counter if everything is so bad

When stopping, only the angle grinder with brake can be unscrewed. And this is not a cheap # 128521 angle grinder;

In general, it’s really strange.

A nut, but its sides are not flat and these nuts are made of different materials (even at home they are even made of aluminum somewhere)

Imhome ›Forums› hands from the shoulders ›The clamping nut is unscrewed on the angle grinder

This thread has 11 replies, 10 members, last updated by Vitaliy on Aug 21 ’14 at 06:42.

The disk turns clockwise. The nut must turn clockwise or counterclockwise too?

The nut was clockwise, never unscrewed, but quite the opposite.

The nut is tightened clockwise. Lock shaft normally and tighten. often she does not want to unscrew than flies. Once I had to disassemble the entire head of an angle grinder (at the same time I cleaned and greased it) to unscrew it, broke the disc and in the process tightened it so that I bent 2 keys (they are somehow flimsy).

ZY Before operating the angle grinder, do not be too lazy to put on the protection

The disc rotates clockwise.

))))))))))))))) Really? …. Clockwise. the nut, and the disc should rotate towards.

If you specifically bite, you can unscrew with an adjustable wrench.

When I disassembled my head and squeezed it in a vice from the other end, I unscrew it only with a gas key

Cardboard circles help from biting, in most cases I twist 99% with my hands. You stop it with a button, and turn it right behind the disc, there have never been any problems.

And I heard that welded ones are specially made so that the disk spins in the other direction, but why? I do not know.

An arrow is stamped on the angle grinder (on the body). This is in which direction it is shown. in that direction the disk is spinning. And in that direction you need to tighten the disc. To do this, simply turn the disc by hand. the whole nut is tightened On the nut, right-hand thread.

If sparks fly at you. then the right-hand thread and upon impact (pulling the angle grinder from the hands), the thread is automatically tightened.

If sparks come from you, the disc will loosen if not fully tightened. To avoid when your angle grinder is knocked out of your hands and the nut is jammed, you need to put a cardboard gasket between the disc and the nut (it will even go from a pack of cigarettes)

This simple operation sometimes baffles even experienced locksmiths or users of an angle grinder. The reason is that the disc is fixed with a special nut. The nut has 2 or 4 holes, into which a special key is inserted. This key was always included with the purchase of an angle grinder. Perhaps he is now included in the kits.

According to the instructions for the angle grinder, press the lock, which is located on the back of the gearbox. When the shaft is fixed, unscrew the nut with a special wrench and change the disc. But it is difficult to unscrew the nut if it is not clamped. And it clamps it with such a nut almost always. An attempt to unscrew the disc leads to breakage of the retainer behind the gearbox.

What is the solution to the problem offered by experts and amateurs

• Install a newspaper gasket under the nut;
• Install a gasket from a plastic bottle under the nut;
• Replace the nut with a nut of a different design.

What is a newspaper strip. This is a nut-sized paper washer. It is put on the installed disk, and a nut is screwed on top. This piece of paper was a sticking point, because the safety inspectorate has always broadcast about the harmfulness of such a decision.

Representatives of safety authorities treat the installation of gaskets made of any other materials in the same way:

• Cardboard;
• Paronite;
• Gaskets from various plastics;
• Rubber gaskets of various thicknesses.

But there is a solution that does not contradict the safety requirements, and allows you to install and remove the disk normally. This is a special nut that consists of two elements. a nut and a pressure washer. The use of such a nut does not require any shims, because the disc does not jam with it.

If there is no special key at hand, then the craftsmen offer to do without the key. This does not mean that you can do without a key at all, but use a "gas key" or other device. To do this, tighten the retainer, tighten the nut with a gas wrench and unscrew it. This way you can replace a jammed disc, but this is a very inconvenient operation for one person.

There are also suggestions to clamp the disc with your hand and unscrew it. Perhaps, but it is unlikely that it will be possible to replace broken disks. It is better to use keys that are designed to remove and install disks.

Some foreign companies producing power tools, such as Bosh, produce an angle grinder with easily removable nuts. They securely fix the disc on the tool shaft, easily and quickly removed for disc replacement.

How to remove a hardened disc from an angle grinder

Applying new nuts solves the problem of removing the disc, but what to do with an already eaten disc? Even if the disc was installed correctly, it is not always possible to remove it. Practice suggests different ways to solve the problem. You can clamp the retainer and hit through the extension on the nut holes in the direction of untwisting. This option is possible only if the retainer is in good condition. But the retainer may not withstand such a solution to the problem and break.

The second method is more logical. Under the clamping nut and the lower support washer there is a gearbox shaft with turned chamfers. They put on the lower support washer. A standard wrench cannot be installed there. it is very narrow. But you can take a regular open-end wrench on "17" and grind it on both sides.

The turned key will enter the gap, fit on the shaft chamfers and fix it. Now any nut will be unscrewed with any key, and the disc or its remains will be removed from the angle grinder.

How to properly place a disc on an angle grinder

Grinding discs have different diameters, different thicknesses and different uses. Some are made for metalworking, others for ceramics, and still others for wood.

The angle grinder must be fitted with a disc of a size that does not exceed the size of the protective cover. The size of the disc to be installed is indicated in the instructions and on the marking table of the angle grinder.

The thickness of the disc is selected according to the technological parameters of the processed material. All discs (grinding wheels) have their own classification. Disc shape, material abrasiveness, grain size, hardness, accuracy class and unbalance class are classified. It is the last value that is responsible for the fact that some discs begin to beat during operation.

The grinding wheel has a front and a back. The front side is the one on which the manufacturer’s markings and corporate drawing are applied. Face upwards when installed on an angle grinder.

Installs the disc in this way. So that during work, sparks with particles of the processed material fly towards the worker. This is related to a safety issue. If the angle grinder breaks free from the hands, it will not fly towards the worker.

Therefore, it is imperative to wear protective clothing or a heavy apron when working with an angle grinder. Eyes and open parts of the face must be protected with a mask or at least goggles.

How to unscrew a disc (nut) on an angle grinder, if bitten, jammed, cannot be unscrewed # 128249;

The angle grinder, or as it is called more popularly and in the popular way, the angle grinder, is nowadays an irreplaceable and very useful tool. Without him, neither here nor there! And if it suddenly fails, then you have to dodge in every possible way, look for alternatives and think about restoring the instrument. At the same time, it is impossible to use an angle grinder for its intended purpose because of a kind of simple lining when the disc does not unscrew. Rather, the nut that holds this disc is not unscrewed. Here you can "break the wood", namely, bend or break the key, damage the lock button, break the case, but still not unscrew the very unfortunate nut. So, we will immediately warn you, if it is not too late. If you suddenly do not unscrew the nut holding the disc with a key, then you need to change tactics. And it is precisely the cardinal method of unscrewing that our article will be devoted.

What to do to prevent this from happening again? Main Applications of Angle Grinder

• Surface cleaning, peeling off old paint. It is carried out with a brush with steel rods or sandpaper petals. No difficulties in work, except that brushes with sandpaper require observing the direction of rotation.
• Sanding with sandpaper. A concentric velcro attachment is screwed onto the angle grinder, on which the abrasive is attached. Before use, check the correspondence of the direction of the screw mount and the rotation of the tool shaft.
• Grinding with abrasive wheels. These attachments must be handled with care as the abrasive can break under heavy load. Material cannot be cut with such discs, shock loads are unacceptable.
• Cutting metals, stone, concrete slitting. Performed by cutting discs.

It is with such nozzles that abnormal situations most often occur.

With a hammer drill in jackhammer mode

The hammer drill must be switched to the chiseling mode without rotation. A 6 mm drill must be placed on the end of the flange or rest against the edge of the hole. The task is to unscrew the nut, to move it from its place. After that, unscrew it with your hands or with a key. During work, you need to block the rotation of the spindle.

Intertool Disc For Sandpaper. Drill.

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Disk destruction

Before unscrewing the nut on the angle grinder, you will have to completely crumble the disc. If it is already destroyed, you can break it with your hands. Solid circles can be sawed with a hacksaw or a metal blade. The inner metal ring and pieces that do not lend themselves to mechanical stress should remain from the abrasive wheel. Then you need to clamp a metal profile or any unnecessary plate in a vice, the thickness of which is less than or equal to the thickness of the disk (but not more). Then turn on the angle grinder and grind off the remaining abrasive to the seat sleeve. Then the flange can be easily unscrewed with the universal angle grinder wrench.

You can take care in advance that the tool does not jam in the angle grinder:

• Cut washers out of cardboard or plastic and place one under the disc and the other between the disc and flange. Even if the circle gets stuck, the plastic washer will melt when heated;
• The face of the abrasive tool, to which the marking label is affixed, must be in contact with the support flange and not with the clamping nut. With this installation, the metal ring of the circle acts as a washer and protects it from jamming;
• Weld a standard hex nut onto the flange and unscrew it with a regular wrench;
• If possible, use the angle grinder wrench only to loosen the clamping nut. When installing a new tool, it is better to tighten it manually or at least control the tightening force.

How to avoid snacking?

To avoid trouble when changing the angle grinder attachment, it is advisable to prepare in advance for work. To do this, you can insert a small spacer between the disc and the nut. Suitable material is cardboard, a piece of linoleum or plastic.

If the fastener is constantly tightening too tightly, it is advisable to use a circle with a smaller diameter. It is also important to monitor the cleanliness of the tool, timely treat the thread with oil, WD-40.

Reasons for biting

As a rule, this problem occurs on an angle grinder with a working surface diameter in the range of 150-180 mm. When a strong torque occurs, the disc bites. This leads to the fact that the attachment cannot be removed with a conventional wrench, even with the application of serious physical effort.

The second common reason is the use of an angle grinder disc that does not match the factory parameters of the tool. This leads to a disruption in the operation of the entire mechanism and jamming. In rare cases, the nut does not lend itself to loosening when rust appears on its threads. This most often occurs during prolonged use of the instrument or storage without changing the tip.

What is the solution to the problem offered by experts and amateurs

• Install a newspaper gasket under the nut;
• Install a gasket from a plastic bottle under the nut;
• Replace the nut with a nut of a different design.

What is a newspaper strip. This is a nut-sized paper washer. It is put on the installed disk, and a nut is screwed on top. This piece of paper was a sticking point, because the safety inspectorate has always broadcast about the harmfulness of such a decision.

Representatives of safety authorities treat the installation of gaskets made of any other materials in the same way:

• Cardboard;
• Paronite;
• Gaskets from various plastics;
• Rubber gaskets of various thicknesses.

But there is a solution that does not contradict the safety requirements, and allows you to install and remove the disk normally. This is a special nut that consists of two elements. a nut and a pressure washer. The use of such a nut does not require any shims, because the disc does not jam with it.

If there is no special key at hand, then the craftsmen offer to do without the key. This does not mean that you can do without a key at all, but use a "gas key" or other device. To do this, tighten the retainer, tighten the nut with a gas wrench and unscrew it. This way you can replace a jammed disc, but this is a very inconvenient operation for one person.

There are also suggestions to clamp the disc with your hand and unscrew it. Perhaps, but it is unlikely that it will be possible to replace broken disks. It is better to use keys that are designed to remove and install disks.

Some foreign companies producing power tools, such as Bosh, produce an angle grinder with easily removable nuts. They securely fix the disc on the tool shaft, easily and quickly removed for disc replacement.

What to do if a nut is stuck?

A common problem when using an angle grinder is a jammed nut. The first thing to do in such a situation is to determine the direction of rotation of the disc. It is recommended to unscrew the jammed nut in the same direction. There are several most effective ways to solve this problem.

• Use an open-end wrench and socket. To do this, it is necessary to grind off the surface of the open-end wrench by 4 millimeters, which has 17 millimeters. On the head of the end face 24 mm, carve four protrusions that will align with the holes of the flange nut. Then an open-end wrench is placed under the disc and the end head is placed on the nut of an angle grinder. After that, the ratchet should be turned in the direction of rotation of the disc.
• Apply a gas wrench. Knowing the laws of physics and using a gas wrench, you can increase the moment of force, since the length of the shoulder will increase.

An angle grinder, or angle grinder, is a versatile tool with which you can perform a wide range of actions. It has a simple mechanism of action based on the rotation of the shaft by an electric motor. Essential for cutting metal parts, polishing surfaces and sanding various materials. One of the common problems during operation of an angle grinder is biting the nut that holds the disc. This does not allow replacing the nozzle, and strong impact can damage its thread, break the key or break the body.

How to remove a hardened disc from an angle grinder

Applying new nuts solves the problem of removing the disc, but what to do with an already eaten disc? Even if the disc was installed correctly, it is not always possible to remove it. Practice suggests different ways to solve the problem. You can clamp the retainer and hit through the extension on the nut holes in the direction of untwisting. This option is possible only if the retainer is in good condition. But the retainer may not withstand such a solution to the problem and break.

The second method is more logical. Under the clamping nut and the lower support washer there is a gearbox shaft with turned chamfers. They put on the lower support washer. A standard wrench cannot be installed there. it is very narrow. But you can take a regular open-end wrench on "17" and grind it on both sides.

The turned key will enter the gap, fit on the shaft chamfers and fix it. Now any nut will be unscrewed with any key, and the disc or its remains will be removed from the angle grinder.

How to unscrew if tightened?

Remember! Unscrew in the direction of rotation of the disc. THOSE. If the disc rotates clockwise, then you need to unscrew the nut clockwise.

The easiest way to unscrew the disc mount is to place the wrench and then hit it with a moderate hammer several times.

If that doesn’t work, there are alternative methods for solving the problem:

• Heat the fastening mechanism with a torch, which will lead to the expansion of the metal. As a result, the structure will become mobile;
• Use a small metal plate to grind the disc down to the nut. Continue grinding until its surface touches the nut and begins to twist it;
• Insert a steel pipe into the holes in the nut, use it as a lever to unscrew the tightened nut. Do not apply too much force so as not to break the thread;
• Lubricate the threads with a machine oil such as WD-40. Wait 3-5 minutes and then try unscrewing the mount with a wrench. Using this method, you can get rid of rust inside the landing shaft;
• If you need to remove a circle that has not been used for a long time, you can start tightening the fasteners even more. After that, try again to weaken it;
• Boiled or rusted threads on an angle grinder can be treated with turpentine, vinegar, white spirit or rust remover. After processing, you need to wait at least 30 minutes, and then try again to unscrew the nut.

If a situation arises when you are left without a key, you can cut down the stuck mount with a chisel or grind it off with a second angle grinder with a disc for working on metal. After that, you will have to restore the thread, and also look for a spare nut. If the circle still does not lend itself, you can try to combine different methods. For example, treat the shaft with machine oil, and then start unscrewing the nozzle with a lever or tapping the mechanism with a hammer.

Unscrewing the hub nut on the VAZ: "burn, beat and twist!"

Now let’s consider the methods that may be the only effective in your case, but from this they are no less radical, even barbaric.

Take a chisel, make notches on the edges

The increase in diameter, of course, makes the hub nut unsuitable for further use, but it will be easy to unscrew it.

Khimichim

Now we will consider ways for those who do not rely on the help of physics, but want to solve the problem with the help of chemistry. Your laboratory should have: kerosene, white spirit, acidified sulfuric acid, zinc, plasticine, hammer, water, sandpaper, wrench, chisel.

Attributes of the chemical method for loosening the nut

With kerosene (experienced people recommend making a mixture of White Spirit and kerosene) we moisten the nut and bolt, applying a tampon to them, no matter what, cotton or gauze. After some time. from an hour to a day, and with repeated attempts, you may find that the hub nut can be easily unscrewed. But even here you can’t do without strength: at least, you will probably have to work with sandpaper to clean the parts from rust. If after this it does not go well, you should help with a hammer: knock it on the edges of the hub nut.

If in this case you did not succeed, make a small container of plasticine, fix the hub nut on top, pour water with sulfuric acid into it, put zinc in the container. A chemical reaction starts that does a very good job with rust. Usually a day is enough for even running corrosion to release the part. Finish the job with a wrench. But this method is valid only in the case when the reason that the nut is firmly stuck and / or rusted, and if it was simply pulled over, neglecting the required tightening torque (in order "for sure"), then you just need to chick it.

• Tubular socket wrench. "knob". The tool must be made of high strength steel.
• Powerful screwdriver.
• Iron pipe.
• WD-40.
• Metal brush.

• We clean the thread from dirt using a brush with metal bristles. The hub nut should now be soaked in penetrating grease. For example, WD-40.
• We saturate the hub with a penetrating mixture. You can rest for 10-15 minutes, and then you should put the head of the key on the nut and hit it with a hammer several times, gradually increasing the impact force. Just do not overdo it: the meaning of this action is to make a slight deformation of the nut, due to this it will be easier to remove it. And immediately after the blows, you should try to unscrew the hub nut on a VAZ or a car of another brand.

Which way the hub nut is unscrewed

Yes, it is very possible that you are one of the lucky ones who will not need additional efforts, since the problem with unscrewing the hub nut may simply be in the wrong direction.

So, we take the crank and, when your car is far from new, try, if the nut does not lock, on the left wheel. unscrew the nut counterclockwise, and on the right, clockwise. In modern brands, usually both left and right you need to unscrew the hub counterclockwise.

Before you start unscrewing the hub nut, do not forget that it breaks off when the machine is on its wheels, and there are stops under them. On the side from which the nut will be unscrewed, the stop is securely installed.

Although if the nut is located deep, and the brake disc is ventilated, then you can try to unscrew (fixing with a powerful screwdriver) and so, only making sure that the car is reliably insured. Remember also about your personal safety: protect your eyes, do not be too zealous, because you can accidentally injure yourself or spoil the car body in a swagger.

Unfortunately, in most cases, it is not enough to use a knob with a large lever; you have to use additional tools, special mixtures. Let’s consider other options.