SEW motors require regular maintenance and inspection.

At present, when selecting and using various types of equipment, it is important to pay attention to the specific characteristics of each device. Therefore, during operation and while reducing speed, if any other issues arise, they should be promptly inspected and addressed. When using a gearbox, the lubricant should be changed regularly, and the oil’s quality should be checked periodically thereafter. Any contaminants or degraded oil must be replaced without delay. In general, for gearboxes in continuous long‑term service, fresh oil should be changed either after a specified number of operating hours or once per year. For gearboxes that have been idle for an extended period, new oil must be replaced before restarting. These considerations should be factored into the design process, ensuring that the appropriate procedures are followed. Particular attention should be paid to monitoring the oil level and determining the frequency of oil changes.

When working with SEW motors, always disconnect the power supply to prevent electric shock before proceeding with further inspections. Allow the motor to decelerate and cool down; these steps are essential. Similarly, when checking the oil level, be sure to de-energize the equipment to avoid electrical hazards, wait for the gearbox to cool completely, and confirm that no risk of ignition remains. During operation, open the oil drain plug to fully drain the oil, reinstall the drain plug, and then refill with new oil of the same brand and grade, ensuring the oil level matches the pre‑installation mark. Finally, perform the necessary checks. When using gear reducers, wear or other malfunctions may occur; if the reducer bearings show signs of wear, they should be replaced promptly.

When equipment is used over the long term without proper maintenance, it may become damaged. Therefore, when operating a reducer, it’s important to understand the service life and condition of its materials and to assess its overall performance. Some reducers utilize polymer‑based repair compounds that can extend their service life and address issues such as leaks by enabling timely repairs. It’s essential to identify and troubleshoot various malfunctions and to determine the root causes of oil leakage, which can result from internal pressure differentials or suboptimal structural design. Such problems should be addressed promptly, with a thorough inspection of both the failure mechanisms and the underlying conditions.