The angle grinder is a power tool that is frequently used in our daily life by using a high-speed rotating thin-section grinding wheel, a rubber grinding wheel, a wire wheel, and the like to grind, cut, rust, and polish metal components. The angle grinder is suitable for cutting, grinding and brushing metal and stone, and it is not allowed to use water during operation. Stone guides must be used when cutting stone. For models equipped with electronic controls, grinding and polishing operations can also be performed if suitable accessories are installed on such machines. Because we often use angle grinders in our daily lives, it is very necessary for us to master the angle grinder maintenance methods and the daily maintenance methods of angle grinders. Let's take a look.

Angle grinder maintenance method

Lead to leakage of the angle grinder is common: stator leakage, rotor leakage, brush holder leakage (angle grinder of the metal shell) and internal wire breakage.

1. When brush is removed, the principle of stator and coating thickness gauge can be judged whether the brush holder and internal conductor have leakage.

2, disconnect the stator and brush holder connection, can determine whether the brush seat leakage.

3, independent measurement of rotor leakage.

4, the rotor and brush holder leakage can only be replaced, the stator can be re-wound or replaced.

First of all, open the inspection line without any damage to the skin. The thickness of the coating thickness meter can be detected with the multimeter. Then the rotor can be measured. It can be measured whether the rotor is leaking or the stator is leaking. The rotor leakage can only be changed. , Stator leakage is to see if the carbon powder and other debris accumulated too much and leakage, clean and then measure, or leakage is the stator winding insulation is not good, see if it is winding shell or wet, not You can only rewind.

Angle grinder failure and troubleshooting

The angle grinder uses a series-excited motor. This motor is characterized by two carbon brushes and a commutator on the rotor.

The most common burnout of this type of motor is the commutator and rotor winding ends.

If the commutator burns, the carbon brush pressure is generally not enough. When the motor is working, if the current continues to be large, the carbon brushes wear quickly, the time is longer, the carbon brushes become shorter, the pressure becomes smaller, and the contact resistance becomes larger. At this time, the surface of the commutator is very hot.

If the winding is burned, it means that the pressure on the workpiece during the working of the angle grinder is very large, the friction is very large, and the motor is in overload state for too long. It's also because the current is too high.

Angle grinder daily maintenance method

1. Always check if the power cord connection is firm, if the plug is loose, and if the switch action is flexible and reliable.

2. Check if the brush is worn too short. Replace the brush in time to prevent excessive sparking due to poor brush contact or burn armature.

3, pay attention to the inspection tool inlet and outlet can not be blocked, and remove any part of the tool oil and dust.

4, should add grease in time.

As long as we usually use the angle grinder in the process of strictly in accordance with the operation process, and in daily life more attention to maintenance and inspection angle grinder, general angle grinder is more durable, less failure. Above angle grinder on repair methods and routine maintenance method of an angle grinder brief introduction here, I hope for your help. For more information, please visit this website. Stay tuned.

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