What causes an electric drill to strike?
There are also some may be a carbon brush fixed set position is easy to loose what position, and try to find a way to be fixed can be more stable, such as what the pad sheet what, in fact, the carbon brush under normal use is not love too bad, bad is mostly caused by loose displacement contact will be very bad no fast firing, this lets it fixed is the most important
However, it is best to look at the rotor, to see it dirty, dirty, black, black, black, serious, you can use the primary school eraser slowly wipe clean, basically wiping clean, I tried. Do not use sandpaper or computer memory wipe finger special rubber (speed a little rough oh) to wipe out, that kind of rough, after rubbing will cause the rotor surface roughness, accelerated wear and carbon brush, remember.
Carbon brush problem, long-term use lead to wear short, and so the circular copper rotor contact is not tight, so it will strike fire, need to replace carbon brush.
