How to unscrew the nut on the grinder?

Nowadays, almost everyone who loves and knows how to tinker has such a tool at home as a grinder. The correct name for this tool is an angle grinder (angle grinder). It is called a Bulgarian because the first mechanisms of this type were brought to the Soviet Union from Bulgaria.

A common problem during the operation of angle grinders 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. Carve four projections on the head of the end face 24 mm, which 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 the 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 key, you can increase the moment of force, since the length of the arm will increase.

• Use a puncher. If you set the hammer drill in chiseling mode without the rotation function, then it will work on the principle of a jackhammer. A six-millimeter drill is placed on the flanged end and work begins. After the nut moves, it can be easily unscrewed with a special wrench for the grinder.
• Warming up. If the nut is heated with a technical hair dryer or a gas burner, then the metal will become more malleable. You just have to unscrew the nut with a wrench. But during the heating process, care must be taken not to damage the plastic parts and the gearbox.
• Breaking a disc is an easy and quick way to unscrew a jammed nut without a wrench. It implies a complete shredding of the disk. For this purpose, it is worth using a hacksaw or pliers. When only the inner ring remains of the abrasive wheel, clamp the unnecessary metal plate in a vice (its thickness should not exceed the thickness of the disc). Next, you need to start the angle grinder and grind off the abrasive to the landing sleeve. Remember to wear protective goggles and gloves when doing this. Then it remains only to unscrew the flange nut by hand.

In order not to get into a similar situation in the future, carefully read the following recommendations of experienced craftsmen:

• when tightening the disc nut, do not exert unnecessary efforts by pressing the key, since at the moment of rotation the nut will tighten itself to the desired level;
• before installing a new disc, place a cardboard or plastic washer under the nut; it can be cut from any available material;
• the labeled side of the abrasive disc must touch the support flange and not the nut; if this condition is met, the metal ring of the circle will protect it from jamming;
• weld a regular hex nut onto the flange, which can be unscrewed with a simple wrench.

Cutting stones or discs for a grinder are not always of good quality and accurate size. This can lead to a situation where the nut is jammed. But if this happens to you, do not despair. Useful advice from experienced craftsmen and your own ingenuity will always help you out in difficult times and tell you what to do in this situation.

For information on how to unscrew the nut on the grinder without much effort, see the video below.