Regular maintenance and upkeep methods for motors

In order to ensure the normal operation of high-voltage motors, in addition to using them according to operating procedures and paying attention to normal monitoring and maintenance during operation, regular inspections should also be carried out to ensure proper motor maintenance and upkeep. This can eliminate some problems in a timely manner, prevent faults from occurring, and ensure the safe and reliable operation of the motor. The time interval for regular maintenance can be determined based on the form of the motor and the operating environment.

The content of regular maintenance for high-voltage motors is as follows:

1. Clean the motor. Timely remove dust and oil sludge from the outside of the motor base. If the environment is dusty, it is best to clean it once a day.

2. Check and clean the motor wiring terminals. Check if the wiring screws of the junction box are loose or burnt.

3. Check the screws of each fixed part, including foundation screws, end cover screws, bearing cover screws, etc. Tighten the loose nuts.

4. Check the transmission device, pulley or coupling for strength, damage, and secure installation; Is the belt and its coupling intact.

5. For the starting equipment of the motor, it is also necessary to timely clean the external dust, wipe the contacts, check whether there are burn marks on all wiring parts, and whether the grounding wire is in good condition.

6. Inspection and maintenance of bearings. Bearings should be cleaned and replaced with lubricating grease or oil after a period of use. The time for cleaning and oil change should depend on the working condition, working environment, cleanliness level, and lubricant type of the motor. Half of the time should be cleaned and replaced with lubricating grease every 3-6 months of operation. When the oil temperature is high, or when the environmental conditions are poor and there is a lot of dust on the motor, it is necessary to regularly clean and change the oil.

7. Inspection of insulation condition. The insulation ability of insulation materials varies depending on the degree of dryness, so it is very important to check the dryness of motor windings. The humid working environment of the motor and the presence of corrosive gases in the workplace can damage the electrical insulation. The most common type is winding grounding fault, which refers to insulation damage, causing the live part to collide with metal parts such as the casing that should not be live. This type of fault not only affects the normal operation of the motor, but also endangers personal safety. Therefore, during the use of the motor, the insulation resistance should be checked frequently, and attention should also be paid to checking whether the grounding of the motor casing is reliable.

In addition to regular maintenance of the motor according to the above items, a major overhaul is required after one year of operation. The purpose of major repairs is to conduct a thorough and comprehensive inspection and maintenance of the motor, supplement missing and worn components of the motor, completely eliminate dust and dirt inside and outside the motor, inspect insulation, clean bearings, and inspect their wear. Discover problems and promptly handle them.