Electric wire rope hoist wire rope hoist assembly faults and repair methods rope hoist, fault and maintenance: 1, started, the motor can not lift heavy objects excessive overload, low voltage, poor contact, brake wheel and rear end caps apparel killed, motor lock chamber. 2, the brake is not reliable, fell over a distance requirements brake ring wear, brake ring surface contact with the rear cover poor braking surface with oil, brake ring is loose, the pressure spring fatigue, couplings ran ineffective or stuck. 7, the motor temperature overload to use the job too frequently, the brake gap is too small, the operation is fully disengaged the brake ring, equivalent to additional load. 8, the sound is too large accelerator poor lubrication, excessive wear gear tooth gap is too large, gear damage, bearing damage 9, start the motor power and motor hum worry less phase, AC contactor bad