Maintenance and servicing of high voltage motors
 
1、Clean and wipe the motor. Clear the dust and mud from the outside of the motor base in a timely manner. If the use environment is dusty, it is best to clean once a day.   
2、Check and clean the motor terminals. Check whether the terminal box wiring screws are loose and burned.   
3、Check the screws of each fixed part, including the foot screws, end cover screws, bearing cover screws, etc. Tighten any loose nuts.
4、Check the transmission device, check the belt pulley or coupling for prana and damage, and whether the installation is firm; whether the belt and its coupling buckle are intact.   
5, the motor starting equipment, but also in time to clear the external dust, you enough, wipe the contacts, check whether the wiring parts have burn marks, grounding wire is good.   
6, the inspection and maintenance of bearings. Bearings should be cleaned and replaced with grease or lubricant after a period of use. The time for cleaning and oil change should be determined by the working condition of the motor, the working environment, the degree of cleanliness and the type of lubricant, half of them should be cleaned and re-greased once every 3-6 months. When the oil temperature is high, or poor environmental conditions, dusty motors should be frequently cleaned, oil change.
7、Insulation condition inspection. Insulation material insulation capacity varies due to different degrees of dryness, so it is very important to check the dryness of the motor winding. The motor working environment is wet, work between corrosive gases and other factors exist, will destroy the electrical insulation. The most common is the winding ground fault, that is, insulation damage, so that the electrically charged part and the case and other metal parts should not be charged touch, the occurrence of this fault, not only affect the normal work of the motor, but also endanger personal safety. Therefore, the motor in use, should often check the insulation resistance, but also pay attention to see whether the motor casing grounding is reliable.
8, in addition to the above-mentioned several elements of the motor for regular maintenance, after a year of operation to overhaul. The purpose of the overhaul is to carry out a thorough and comprehensive inspection and maintenance of the motor, add the missing and worn components of the motor, completely eliminate the dust and dirt inside and outside the motor, check the insulation, clean the bearings and check their wear and tear. Problems are found and dealt with promptly.