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The weather become colder and colder. Some pumps which placed outdoors were efeected to a certain extent. Here are some repair and mainenance tips for winter water pumps

1. After the pump stop working,  the remaining water in the pump and pipeline should be drained, and the external soil should be cleaned, so as to prevent the pump body and water pipe from bursting due to the freezing of accumulated water after freezing.

 2. The iron castings such as the bottom valve and elbow of the water pump should be cleaned with a wire brush, and then painted with anti-rust paint and then painted with paint. After drying, put them in a ventilated and dry place in the machine room or storage room. 

3. If the pump driven by a belt, after the belt is removed, wash the belt with warm wate and then hang it in a dry place without direct sunlight, do not store it in a place with oil, corrosion and smoke situation. Under no circumstances should the belt be stained with oily substances such as engine oil, diesel or gasoline, also do not paint rosin and other sticky substances.

 4. Check the ball bearings. If the inner and outer jackets are worn, moved, balls are worn or there are spots on the surface, they must be replaced. For those that do not need to be replaced, the bearings can be cleaned with gasoline or kerosene, coated with butter, and reinstalled.

  5. Check whether the impeller of the water pump has cracks or small holes, and whether the fixing nut of the impeller is loose. If the impeller wears too much or has been damaged, it should generally be replaced with a new impeller. Partial damage can be repaired by welding, or the impeller can be repaired with epoxy resin mortar. The repaired impeller should generally be subjected to a static balance test. Check the clearance at the impeller anti-friction ring, if it exceeds the specified value, it should be repaired or replaced.

 6. For pump shafts that are bent or severely worn, they should be repaired or replaced, otherwise it will cause imbalance of the rotor and wear of related parts.

 7. Soak the removed screws in diesel oil and clean them with a steel wire brush, and paint  engine oil or butter, reinstall them or wrap them in plastic cloth and put them away (it can also be immersed in diesel oil for storage) to avoid rust .

For more information about pump maintance, please contact: rita@ruitepump.com, whatsapp: +8619933139867