Seal Inspection: Regularly inspect the various seals of a submersible pump, such as the sealing ring and seal box. Tighten any loose parts immediately and replace any damaged parts to prevent water from entering and short-circuiting the motor.
Lubricant Replacement: After a certain period of operation, the lubricant in the seal chamber and motor cavity of an oil-immersed submersible pump needs to be replaced to ensure proper operation of the lubrication system.
Rust Removal and Rust Prevention: After one year of use, inspect the submersible pump for rust, remove any rust, and apply anti-rust paint for protection.
Regular Maintenance: After a certain number of years of use, inspect each component individually, disassemble it for cleaning, lubricate it, and reassemble it.
Storage and Maintenance: When not in use for an extended period, lift the submersible pump out of the ground, wipe off any water stains, and store it in a dry and ventilated area.
Electrical Maintenance: Regularly check the submersible pump's insulation resistance to ground and ensure that the cables are intact to prevent electrical leakage.









