8. Check the tightness of the flange at the output shaft end of the motor. The oil seal of the output shaft is well sealed and no foreign matter is entangled.
8. Check the fastening of the flange plate at the output shaft end of the motor, and the oil seal of the output shaft is well sealed without foreign matters
8. Check the fastening of the flange plate at the output shaft end of the motor, and ensure that the oil seal of the output shaft is well sealed without foreign matter entanglement.