Common cause grinder leakage failure: rotor stator leakage, leakage, brush seat leakage (The Angle of the metal shell mill)And internal wire breakage. )Brush to remove, can judge the stator, brush and internal wires for leakage. )Disconnect the connection wire of the stator and brush holder, can judge brush bases for leakage. )Independent measuring rotor for leakage. Rotor and brush change seat leakage, stator can rewind or replacement. Lithium brushless electric Angle grinder faults and elimination method of Angle grinder with the is series motor, the motor is according to the characteristics of the two pieces of carbon brush, commutator rotor. The most common motor burn out part of commutator and rotor winding end. If the commutator is burned, general carbon brush pressure is not enough. When the motor work, if the current continuous, carbon brush wear quickly, time grew, carbon brush shorten, pressure decreases, the contact resistance is very big, the fever is very serious at this time the commutator surface. If part is winding burned, Angle grinding machine the workpiece under a lot of pressure at work, the friction force is very big, the motor is in a state of overload time is too long. It is also because electric current is too big.
