Can you believe it is close to 25 to 30 parts mill, an angle grinder to make die? O-ring, retaining rings, spiral bevel gears, bearings, shaft, wheel cover, pan head tapping screw, inner flange, nut, wedge, wheel assembly, cable guard, lighting, floor nut, rubber washer, compression spring, partition board , fan, insulating mat. There is a varied selection available for these grinders from different manufacturers, which are more competent and interesting market. If your unit does not completely discard.
If you want to debug an angle die grinder that has not the center of the work, can contain a lot of dust inside, because some particles have worked with or due to wear. security, remove the power cord. Make sure you cover your eyes, nose and glasses, so not breathe dust .
This may be a small problem with windmill parts are usually brushes. Will the screws to hold your angle grinder to die case. Please and remove the lid. Identify the brush holder. Remove from units using tools such as flat screwdriver. If the brushes are dirty, you can clean like a pencil eraser. If more dust, you can use an air blown to remove dust. But if they gone out of shape or worn, replace it ..
Take a piece of sandpaper and rub the brush against them, until the surface is smooth. Now check the power Sander parts of your device.