angle grinder jams the disk what to do
Which way to unscrew the disk on the angle grinder
It can be difficult to remove a disc from an angle grinder if it becomes jammed for some reason, especially not to damage the cutting element or the power tool itself. In addition, we suggest that you consider several ways to solve the problem.
Replacing the blade by reversing the movement
Making Angle Grinder Tool for unmounting Angle Grinder Jammed Disc
This method has the advantage that you can work without a spanner and even with a broken spindle lock. Beginners when working with angle grinders very often mistakenly believe that if the stopper is broken, it will be almost impossible to unscrew the nut. But this is really not the case, and you do not even need a wrench. The idea is to start rotating the abrasive wheel in different directions. Also put on tight gloves, and hit the cutting edge of the wheel several times. This is the way you can ensure alternating motion in different directions. As a rule, usually a few sharp strokes are enough to easily unscrew the jammed nut.
Using a socket head and a socket wrench
In this case it is necessary to slightly modify the standard tools that are available. a 1.7 mm open-end wrench and a socket head of 2.4 cm. The thickness of the wrench will be ground to 0.4 cm. There are four protrusions on the head that fit into the holes in the retaining nut. After the preparatory work, the wrench should be placed in the free space under the cutting wheel, and the head put on the flange of the angle grinder and turn it in the opposite direction from the direction. You can then easily remove it and install a new one.
This is one of the easiest ways to remove the disc from the angle grinder without using a wrench. The nut that locks will be heated with an industrial hair dryer or even a gas torch. After that, the flange can be unscrewed and it will be much easier to do. But there is still a risk of damaging the plastic part at the gearbox or angle grinder.
The best way to do this is to use a nail with a length of 10 cm. It should be bent into a U-shape so that the ends fit freely into the holes of the clamping flange. Remove the cap and point, and then you should insert the nail into the holes, and unscrew the retainer. If you do not have enough force with your hands, you should add a screwdriver or a nail as a lever.
How To Free Up An Angle Grinder Disc That’s REALLY Stuck
With a gas wrench
The use of this tool is justified by the increase of the applied torque of the power thanks to the enlarged shoulder. It will be much easier to unscrew a jammed connection with a gas wrench, but when removing the jam, remember that with excessive force there is a great risk of damaging the spindle lock or even the jam nut.
Using a rotary tool/drill with an impact function
Unscrew the disc on the angle grinder without using a wrench can be used with a rotary tool or even a drill, but first you should set it to jackhammer mode. In the role of the working head should use a drill of suitable size, usually 0.6 cm. The drill should be set against the edge of the hole of the clamping nut, lock the spindle movements and move everything out of place by briefly turning it off. This method will provide an opportunity to turn away even very complicated jams.
This method is very similar to the one described above, but here you can use a suitable metal bar or even a chisel. With the spindle head locked in place, tap the edges of the clamping hole in the direction of travel of the wheel. Slightly move the locking mechanism away from the dead center, and then you can unscrew it with your hands. But this method is not the most harmless for the electric tool, because the mounting holes for a standard spanner will be damaged.
Destruction of the cutting disc
You can unscrew the jammed nut by destroying the cutting wheel completely. If it is already damaged, you can break it by hand, but more often than not you can’t. The best option is to take a metal blade or hacksaw and saw everything off. This will leave you with a center ring and hard-to-reach pieces. When you find a suitable plate, clamp it in a vice and file away the rest of the grit (abrasive) so that only the metal ring remains. After that it can be easily unscrewed with a simple spanner.
There is also a more radical way to unscrew the jammed jam nut, namely sawing it. It can be resorted to in the most extreme cases, and of course you can find a new part, but there is a need to spend your time and money. Very often there are spare elements for the clamp in the delivery set of the angle grinder.
How to remove the disk from the angle grinder with a wrench?
If the special wrench that comes with the angle grinder is not lost, it will be easier to cope. Those who are interested in how to remove the disk from the angle grinder, experts advise to first fix the spindle. That is where the disk is mounted and clamped by the flange. It is disassembled with an open-jaw wrench. To make it technically possible the flanges are equipped with special holes into which the pins of the wrench can be inserted.
To fix the spindle, you need to press the button, which is located on the body on the back side of the disc. Do not release the latch with an open-jaw wrench, otherwise the spindle will continue to turn. If the disc in the angle grinder turns clockwise, turn the horn wrench counterclockwise and vice versa. It is important that the flange yields and moves out of place. Now it can be unscrewed completely and put aside. Then the old disk is removed and replaced with a new one.
Bitten by the disk angle grinder: two harmful “folk” tips for getting out of the problem and one correct
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“Folk” harmful tips
The problem with the vast majority of tips about the angle grinder of the people is that they all violate the safety of working with the tool in one way or another. Needless to say, if you value life and health, it is better not to violate TB? After all, among other things, in the workplace, the implementation of such amateurism can end up at a minimum with the deprivation of bonus with the sanction of the safety engineer.
Noxious tip: to break and grind a disk. The essence of this method is to break out the jammed disk from the angle grinder with a suitable tool as far as possible. After that you should take a sheet of tin plate with a thickness equal to the width of the aged disc. Tinplate is clamped in a vice, after which the rest of the disk angle grinder simply rub against it.
Problems with the tip First of all, this method is extremely dangerous for the worker and everyone around. Fragments of the disc can cause very serious injury. Especially if no protective equipment is available. The second problem is that this method is extremely demanding to the skill of the worker. The third problem is that many modern disks can not be ground in this way because of the metal ring-rim on the inner ring.
Hazardous Tip : Heat the clamping nut. The idea of this method is to heat the clamping nut by rubbing it against the wood. After that it should supposedly unscrew much easier and faster.
The metal expands in all directions. And this means that it is more likely that the nut will become even tighter, making its subsequent unscrewing an even more difficult task.
How to remove the jammed disc from the angle grinder?
Many craftsmen recommend making disc spacers when working with an angle grinder. It is believed that the artless product of cardboard can protect the tool from too much tightening of the clamping nut. In most situations it really works. If you don’t want to bother with cutting it out, you can even buy such spacers in a hardware store. However, it is much more important to know and remember the only correct recipe against jamming. All a craftsman needs to have is the right wrench for the angle grinder.
Of course, situations are different. And sometimes even the wrench stops helping. It happens when the nut is too tight or jammed as a result of previous unsuccessful attempts to remove it with a wrench. In this case, the problem will be solved only the most radical way. to cut the nut completely with another angle grinder.
And here’s an interesting video from our channel:
If you want to know more interesting things about tools, it is worth to read about what is a Canadian screwdriver: when it appeared, and why some consider it the best.
Bitten disc, how to fix the clamping
To loosen a jammed threaded connection you can heat the clamping nut by rubbing it against a wooden surface of a thick bar or a tree stump cut in the country. Unlike heating with a blowtorch or gas torch, it is possible to adjust the pressure of the nut on the wood. The more even heating of the threaded joint within a few minutes makes this method less safe in terms of preserving the performance of the angle grinder. In practice, as shown in the following video, the clamping nut is easily unscrewed at a temperature at which a drop of water will instantly evaporate after hitting the surface of the friction-heated clamping nut of the angle grinder.
How to mount the disk correctly, is it necessary to tighten
During operation of the angle grinder, the clamping device that clamps the disc tends to tighten even more. Therefore, when installing a new consumable, you should just give it a gentle squeeze. Further, the laws of physics will ensure that the tool is securely clamped.
How to unscrew the nut on an angle grinder? Which way it unscrews? What to do if the nut is jammed? An easy way to unscrew without a spanner
Consumables for the angle grinder (cutting discs, grinding discs, etc.) must be securely clamped during the performance of their functional tasks. In the construction of angle grinders, quality fastening is ensured by special clamping nuts.
Let’s dwell on the cutting-off wheels in more detail
The question of which side of the disc to place on the angle grinder has no correct answer. Abrasive wheels do not have a programmed direction of rotation, so it does not matter how you set it. The direction of rotation (toward you or away from you) is determined by the position of the guard. The choice depends on the position of the tool that is comfortable for the operator.
In addition, the position of the shroud determines the direction of the flow of sparks (or rock dust).
It is advisable to put the disc with its face (marked) upwards. That way you won’t forget which bit is installed: stone or metal. They are not interchangeable.
For mounting the disk to the shaft, a collapsible flange is included. Bottom part is firmly chamfered, top part is a conventional self-tightening nut. This is what determines the direction in which the disc on the angle grinder should rotate. The threaded joint is tightened in operation to keep the bit from coming off.
Sometimes the kit includes spacers to dampen transverse vibrations. They can be made on their own from thick electrical cardboard or paronite.
To secure the flange, the tool is supplied with a special open-end wrench. A clamping button secures the shaft to provide the necessary tightening torque.
Popular: Tip: how to choose an angle grinder aka angle grinder
For inexperienced users, failure to understand the simple question of how to install the drive properly can result in damaged equipment or personal injury. The first step in changing a disk is to grind the shaft and inside surface of the blade guard with a steel brush.
A layer of metal particles is riveted on these elements (when cutting the material). The thickness can reach several millimeters, and as a result the disc loses alignment or jams.
How to loosen angle grinder disk that is stuck. (jammed)
Important! It is strictly forbidden to install discs whose diameter does not correspond to the specification of the angle grinder.
Large attachments do not simply overload the motor. Remove the blade guard for installation. If the disc of the angle grinder breaks, but the protection is not installed, splinters can seriously injure the operator.
Another controversial question, whether it is possible to put a wood disc on an angle grinder. If you are holding the tool with your hands, the unequivocal answer is no. The circular cutter can easily jam in the fibrous structure of the wood. A tool that has been ripped out of your hands can cause a lot of damage, including fatal injuries.
It is difficult to encounter this problem when rotating at idle speed. Particularly when working with lightweight wheels and tools with soft start function. However, after increasing the RPM and coming into contact with the surface to be cut, the following happens:
- If there is resistance from the material, the wheel’s rotational angular velocity is drastically reduced and the wheel is braked.
- The motor continues to run for a few moments at the previous speed due to inertia, dragging the gearbox and spindle along with it.
- The retaining nut is tightened more by inertia on the threads of the spindle head and thus the cutting disc is pressed in.
That’s all, the process of tightening the fixing flange is finished. the emergency situation is visible. The following factors influence its occurrence:
- Large wheel size.
- High power of the tool.
- Massive rotor.
- A sharp increase in cutting depth, t.е. increased resistance.
In this case it can be very difficult to remove the disk from the angle grinder. Additional measures must be taken.
Why does the disc of the angle grinder clamping, gross mistakes for beginners
The problem happens often. for beginners, although masters who work with the angle grinder all the time are not immune from it. The main reasons: abrupt braking of the disk when clamping it in the material to be cut; sloppy start of work, when the disk is abruptly loaded due to the strong pressure on the cutting area. Among the causes may be broken threads in the bolt-nut pair, which secures the disc.
Work with the angle grinder requires a master to have a sense of proportion. It doesn’t come right away, but after a couple of years of using it all the time. One of the main requirements to work with it is to arrange a cutting disk in such a way that in case of its jamming and possible collapse the shards would fly past a person.
There is another detail that most people do not pay attention to, which indirectly affects the possibility of jamming the drive. The wheel should be placed on the angle grinder to the gearbox, not outward washer.
To avoid problems with the disk clamping and unscrewing the nut later on, it is recommended to put a washer under the latter when installing the disk. It can be made of cardboard, thin aluminum. The thicker the washer, the better.
Some craftsmen replace the staff nut on the angle grinder special, equipped with a small mechanism. There are those who connect the problem with inability to unscrew the disk with the standard spanner, which is attached to the angle grinder. They suggest buying a wrench on the market that allows you to remove the disk even if you tighten the nut too much.
There are claims by some experts that the clamping disk occurs due to problems with the thread in the bolt and nut, which is secured in a circle. They advise to use a suitable die and tap to go through the existing thread on the pair. And do it carefully, avoiding warping and always with the use of grease. According to them, the problem with jamming will disappear by itself.
A chisel and hammer are often used to unscrew a jammed disc. The method yields results, but overloads the individual nodes, which can lead to failure of the angle grinder. To avoid this, a gentle method can be used. They take pliers and methodically nail the abrasive that protrudes beyond the nut. Then, using a hacksaw for metal, remove the remnants of the disk, which are between its washers. After the clamping nut is easily unscrewed with the simplest wrench.
Locksmith tip: How to unscrew an angle grinder if the disc is jammed and torn
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What you will need: a hammer, pliers, WD-40 grease, a thin screwdriver
If the disk is torn and the fixing nut is jammed in the angle grinder, the deepest regret of the owner will not be able to solve the problem with “jewellery” methods. Rough and painstaking, but not too hard work lies ahead. Having prepared all necessary things, we take pliers in hands and start the most barbarous (but the only effective way) to break out the pieces from the working area of the torn disk. It is best to remove the blade in small pieces.
When the bulk of the disk is removed, you need to do a finer job and carefully remove any debris from under the retaining nut. You can’t rip everything out with only a pair of pliers, but you should remove as much debris as you can. Immediately after that you need to take a shovel, clamp it in a vise. We put the angle grinder so that the edge of the spade cleaned the groove in which the fragments of the drive. Turn the angle grinder on at its lowest rpm.
As a more elegant alternative to the shovel rib, a suitable piece of sheet metal and an ordinary screwdriver can be used. If it does not yield, you can grease it with WD-40. Alternatively, you can simply try to unscrew the retainer nut. To do this, you need to heat it up. The easiest way to do this is to lean it against a tree and turn on the tool for a couple of minutes. The heated nut should be easy to remove with the regular wrench. It goes without saying that a torn disk still needs to be broken out beforehand.