How to spin a grinder if the disc is jammed

Preventing disc seizure

We figured out how to unscrew the clamped nut and change the disk to the angle grinder, and now we will consider how to safely operate the grinder so that this problem does not arise anymore. This requires:

  • Place cardboard, rubber or plastic washers between the nut, the spindle head and on both sides of the disc. They will not allow the nut to be tightened too tightly and significantly reduce the likelihood of tool jamming, and if clamped, they can be easily and quickly removed and the clamping flange unscrewed.
  • Install the cutting or stripping disc correctly. It must be mounted face-down on the spindle head.
  • It is advisable to weld a regular nut onto the clamping flange, which will allow you to use a regular wrench in case of jamming.
  • Check the tightening force of the clamping nut. Excessive force will cause the tool to stall under heavy load.

spin, grinder, disc, jammed

Rotary hammer or impact drill

Honestly, it is not the best and easiest option to unscrew the clamped nut on the grinder, but it is used if other methods do not work. As an attachment for a drill or hammer drill, you need a drill of a suitable diameter, most often 6 mm. If a drill is used, then you need to put it in the jackhammer mode in advance. It is better to fix the grinder in a vice, clamp the spindle stopper, insert the drill into one of the holes of the clamping nut with an emphasis in the direction of unscrewing, and briefly press the “Start” button. This method allows you to move even a tightly clamped flange. The disadvantage is that this way you can break the bore holes for a standard key.

Disk destruction

The cardinal solution for unscrewing a clamped lock nut is the destruction of the disc. It is necessary to break the disc with pliers or pliers. As a result, a ring and hard-to-reach fragments will remain. Next, you need to take the largest piece of the disc and clamp it in a vice, with the cutting edge up. Now grind off its remains and the ring on this shard. After that, you can easily unscrew the clamping nut with a standard wrench that comes with the grinder.

Using an adjustable wrench

The use of an adjustable wrench of the “toad” type in order to unscrew the clamped disc on the angle grinder has its advantage due to the increased lever. However, it should be borne in mind that applying too much force can damage the spindle stop and the pressure flange.

Spin the disc in the opposite direction

This method is good because you can unscrew the locking flange without a standard wrench and even with a broken spindle lock. Novice locksmiths often believe that if the stopper is broken, then the nut will be impossible to unscrew using conventional methods. This is a misconception, since you don’t even need the key that comes with the angle grinder.

The essence of the method lies in the fact that the grinding or cutting wheel needs to be given short-term sharp rotations in different directions. To do this, you need to put on tight work gloves, preferably leather, and hit the working edge of the consumable several times sharply. If it did not work out the first time, you need to repeat the operation. Usually 2-3 such blows are enough to unscrew the lock nut of the grinder.

If the grinder is jammed: effective ways to solve the problem

During the operation of the power tool, an abnormal situation can occur at any time (overheating of the engine, breakage of the drill or disc, jamming, etc.). The most common problem when working with an angle grinder (angle grinder) or grinder is the clamping of a cutting or grinding disc. In today’s HouseChief review, we’ll show you how to unscrew the clamping nut if it gets stuck.

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Read in the article

Tapping the nut

This method is similar to the previous one, with the difference that instead of a hammer drill or hammer drill, a chisel or metal rod of a suitable diameter is used. Having locked the spindle of the grinder, you need to insert the rod into the hole in the nut and tap with a hammer in the direction of the circle’s movement. By moving the flange slightly from its place, it can be unscrewed by hand. This method has the same disadvantage as when using a punch.

Flange sawing

Another radical way to remove a tightly clamped nut on an angle grinder, if other measures did not help, is sawing. This option should only be used as a last resort and provided that you have a spare flange. Some models of grinders from well-known manufacturers are equipped with an additional clamping nut.

Why bites the nut on the grinder that holds the disc

I will say, perhaps, a well-known truth. He bites nuts more often on grinders with a disc size of a significant size, say 150-180 mm or more. The thing is that the resulting torque, in the case of a disk impact at the time of the start of cutting, is much greater than for a disk, say 125 mm. As a result, the nut is tightened by inertia so much that it is very difficult to break it in the usual and usual ways. Now about the special ways.

Disk destruction

Before unscrewing the nut on the 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 sawn 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 grinder and grind off the remaining abrasive to the seat sleeve. After that, the flange can be easily unscrewed with a universal key for angle grinders.

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

  • cut washers out of cardboard or plastic and place one under the disc and the other between the disc and the 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, the wrench for the angle grinder should only be used to unscrew the clamping nut. When installing a new tool, it is better to tighten it manually or at least control the tightening force.

Warming up

The clamping nut must be heated with a hot air gun or gas burner to make the metal more pliable. Then unscrew it with the universal wrench or by hand. But the risk of this method is that you can spoil plastic parts and gearbox elements.

How to make sure that you do not bite the nut and disc on the grinder

And a few words about preventing such unpleasant precedents again. You can use small cardboard spacers by inserting them between the disc and the nut. As a last resort, we use a disc of a smaller diameter, unless, of course, the nut is tightened from above. As a result, it will be possible to unscrew such a nut without any problems. It will not be squeezed, for a bite on the carving.

And another small video about a problem that I studied on my own experience.

How to unscrew the nut of the grinder disk (angle grinder) if it is bitten

So, if there is no way with the key, even if you insert it and hit it slightly with a hammer, then we begin to use something more serious.

What to do when your grinder is jammed shut

The first thing you can try, but again without fanaticism, is to take a rod, insert it into the holes on the nut and, using a hammer, move the nut in the direction of its untwisting. The main thing here is not to break the button and not to rip the holes, as here

The second thing that many advise is to warm up the nut. We warm up the nut. As a result, it is slightly, but physically still obliged to expand. Resizing may or may not help.

Do not pull all the way until the scroll hold button stopper or the button itself bursts. In this case, it is not the tool with which you unscrew it that breaks, but often the case of the angle grinder.

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The third method is the most effective, and, oddly enough, one of the safest for the grinder itself.
We take and break off the edges of the disk along the nut.

Next, we use a thin metal plate or another disc (thinner), and maybe a second grinder with a disc. In this case, a broken disc must be turned either with a plate or a disc. We try to sharpen the disc so as not to damage the nuts holding this disc, because they will still be useful to us. So we sharpen the whole broken circle until we grind it off and the nut is unscrewed.

This business is 4-5 minutes, no more.

If you will be using a second disc or metal plate, it is best to insert them in a vise to hold them. Since it is dangerous to hold such objects with your hands. This method is the most effective.!

How to unscrew a disc (nut) on a grinder, if it has a bite, squeezed, does not unscrew

LBM, or as it is called more popularly and in the folk way, the Bulgarian, nowadays an indispensable 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 the grinder for its intended purpose because of a kind of simple overlay, 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 never unscrew that same unfortunate nut. So, we will warn you right away, 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.

How easy it is to unscrew the grinder nut if the disc is jammed

Various mechanisms make our work easier, both in production and in domestic conditions. But sometimes they bring unexpected and not very pleasant “surprises”. After all, it is impossible to foresee all the situations in which you will have to use the tools.

This also applies to the grinder (angle grinder), when the cutting disc is clamped on it so much that it is impossible to unscrew the clamping nut with a standard wrench or other tools or methods. In this case, there is a risk of breakage of the quick clamping button of the disc and even the body of the tool, usually made of aluminum alloy. The matter is further complicated by the fact that the surface against which the working disk is pressed is often round and it is impossible to stop it.

What to do to prevent this from happening again?

In order not to get into this situation anymore, you can put a plastic, paper or cardboard washer under the nut before clamping a new disc. And in such a case, the nut can always be unscrewed without problems.
Cut stones or discs are now not always of the proper quality, and therefore breaking them becomes a frequent problem. Of course, the human factor of misuse is not excluded. But now, if you find yourself in a similar story, you know what to do. Until next time!

Using a homemade weed grinder

The main component of this device is the chewing tobacco can. If you are already diving and you have a bunch of cans lying around, then you are already halfway there.

After making sure the jar is empty, all you have to do is pierce nails. preferably with buttons. the top and bottom of the can. As with a real grinder, make sure the top and bottom rows of buttons do not overlap or you will not be able to close shape and grind. After you insert the nails / buttons at the correct intervals, place the weed in the jar like a normal sander, close it and rotate. You won’t have a third compartment or buzz trap at the bottom, but your bud should definitely be chopped up.

Flange sawing

Another radical way to remove a tightly clamped nut on an angle grinder, if other measures did not help, is sawing. This option should only be used as a last resort and provided that you have a spare flange. Some models of grinders from well-known manufacturers are equipped with an additional clamping nut.

how too Remove a stuck grinder disk 100% works hack

How to replace a disk normally

With regular work with an angle grinder, you should constantly replace the wheels, which are the most common consumable. If the tool is already inconvenient to work, then the worn out wheel with an abrasive coating should be replaced.

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note, that it is imperative to check the disconnection from the mains to avoid injury.

Step by step instructions

So, the circle should be fixed on the spindle head using a lock nut, which has an M14 thread. As standard, there is an open-end wrench with special lugs for engagement with flange holes for fixing. In order to unscrew the nut, fix the spindle. This will require a special clamp, which is located on the back of the grinder. When you press the button, you can fix the gearbox with a cotter pin, and exclude the possibility of its rotation.

Now you need to insert the key into the hole. With one hand, you will hold the lock, and with the other, turn the wrench counterclockwise and move the nut. The direction of movement of the circle is usually clockwise, however, it is worth mentioning that there are models that can have everything differently. In any case, unscrewing is performed in the opposite direction of rotation. When the nut has been moved, it can be unscrewed by hand without much effort. It remains to remove the retainer and the old circle, remove the bottom flange. After intensive work with a tool such as an angle grinder, you may find a build-up of burnt scale and abrasive inside the casing. Use a steel brush to clean and remove residues.

After the bottom flange has been cleaned, reinstall it and align the spindle grooves with the flange slots. Place a special gasket on top. If your device model does not have additional spacers, then such useful washers can be made yourself from plastic or even thick cardboard. Next, you should correctly put the disc on the grinder and close it with a similar gasket.

note, that the installed gaskets make it possible to easily unscrew the nut, even if you have a jammed disk or it breaks.

Turn the top lock counterclockwise (counter-rotating) by hand and support the blade. In this case, it is imperative to tighten the spindle lock and tighten the flange until you feel resistance. Using an open-end wrench, you should tighten the nut with a little effort, but you should not overtighten the fastener, otherwise you can overtighten the circle and it will begin to warp. After that, you can work quietly. But from time to time, problems still begin to appear and it just won’t work to unscrew the disc on the grinder. How to remove a disc from a grinder with a key and more, consider further.

Pestle and mortar

This method may make you feel like a 14th century pharmacist, but it is still effective nonetheless. The pestle and mortar have long served as a way, so to speak, to “mix medicine,” and chopping herbs certainly falls under this umbrella.

But seriously, these things were literally invented to grind herbs. Think of it as your great, great, great, great, great, great ancestor grinder. And this is pretty understandable. just place the buds in a mortar (aka a bowl-shaped vessel) and crush them with a pestle. The only thing we can suggest is to let the buds dry out a bit before using this method. After all, it’s pretty hard to break a wet sticky kidney with a pre-Christ tool.

What causes the problem

During idle rotation, it is almost unrealistic to encounter such or a similar problem, especially when working with light discs and tools that have a soft start function. But after the number of revolutions increases and contact with the cut surface, the following will occur:

  • With the appearance of material resistance, the circle will sharply decrease the angular velocity of rotation, and it will slow down.
  • The electric motor continues to run at normal speed by inertia for a moment, which is why it carries the spindle and gearbox with it.
  • The nut for fixing by inertia must be tightened even more against the threaded connection of the spindle head, and this contributes to the crimping of the cutting disc.

How to loosen angle grinder disk that is stuck – (jammed)

And when the process of tightening the flange for fixing is completed, we have an extraordinary situation. Its appearance will be influenced by the following factors:

  • Huge disk size.
  • Very high power tool.
  • Rotor dimensions.
  • A sudden increase in the depth of cut, i.e. resistance increases.

In this case, you should remove the disc from the grinder, but this can be very difficult to do. Here you will need to take additional measures.


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