1, the sewage pump should be someone to manage and use, and regularly check the electric pump winding and the insulation resistance between the chassis is normal.
2, each time, especially for thicker than the viscous medium, the pump should be run into the water for a few minutes to prevent sediment retention pump to ensure that the sewage submersible sewage pump clean.
3. Under normal conditions, the sewage pump should be filled or replaced with oil (oil No. 10-30) after every 300-500 hours to keep the mechanical seal in good lubrication condition and improve the service life of mechanical seal.
4. Non-clogging submersible sewage pump If the pump should not be removed from the water when not in use for a long time, do not soak in water for a long time to reduce the chance of damp motor stator windings to increase the pump life can be sprayed paint to the paint off place, So as not to rust.
5. Replace the seal ring: the long-term use in the sewage medium, the impeller and seal ring clearance between the gap may increase, resulting in reduced pump flow and efficiency, should turn off the gate, the pump lift, remove the bottom cover, remove Seal ring, according to the actual size of impeller ring with seal ring, the gap is generally about 0.5mm.
6. Submersible no clogging Sewage pump disassembly, maintenance, chassis components must be 0.2MPa airtight test to ensure that the motor seal reliable detection of water pumps should adopt the click approach to ensure that the product is normal and then start the motor.
7, small-scale sewage pump can be used mobile installation, the diameter of more than 100mm submersible sewage pump is recommended to use coupling installation for future maintenance and testing.
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