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. )To measure the rotor for leakage. Rotor and brush change seat leakage, stator can rewind or replacement. First apart procuratorial connection line skin have no damaged, can be detected with the multimeter to case, and then on the rotor measuring, rotor leakage or stator leakage can be detected, the rotor leakage can be replaced, the stator leakage and see if it is carbon brush powder and other sundry product to too much and leakage, clean again measurement, or leakage is the stator winding insulation is not good, see if windings to shell or damp, not only can rewind. Angle faults and elimination method of mill, grinder with the is series motor, the characteristics of the motor is that there are two pieces of carbon brush and commutator rotor. The 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.
