Buy high quality and standard oil seal for arc gear pump. When installing the oil seal of the circular gear pump, if the outer surface roughness of the shaft diameter is low or has defects such as rust, corrosion, burr, etc., it should be polished with fine sand cloth or oilstone; apply clean oil or lubricating grease on the lip of the oil seal or the corresponding position of the shaft diameter.
Apply sealant on the outer ring of the oil seal, wrap the keyway on the shaft with hard paper, avoid scratching the oil seal lip, rotate and press the oil seal inward with a special tool, do not smash the oil seal hard, in case the oil seal is deformed or break the spring and fail; if lip flanging, spring falling off and oil seal skew must be removed and reinstalled.
It should be noted that:
Arc gear pump when the shaft diameter is not worn and the oil seal spring is elastic enough, do not tighten the inner spring without authorization.
The oil seal used in machinery should be inspected, maintained and maintained frequently when the working conditions are bad, the environmental temperature difference is large, there is a lot of dust, and the mechanical parts are constantly changing due to frequent vibration. Such as serious shaft diameter and bearing wear; oil seal rubber aging or spring failure, etc., should be repaired and replaced in time.
For abnormal heating parts or assemblies should be timely troubleshooting; avoid mechanical overspeed, overload operation, in order to prevent oil seal lip temperature rise, rubber aging, lip early wear and so on.
Always check the oil level. If there are too many impurities in the oil, replace the new oil thoroughly when there are alloy powder and metal iron shavings. The brand and quality of the changed oil should meet the requirements of the season. Oil seals that are not in use for the time being should be properly kept to prevent oil, dust or sun exposure.
When the shaft diameter of the circular gear pump is worn into a "V" groove, so that the contact pressure between the new oil seal lip and the shaft can not play the role of sealing oil, AR-5 two-component adhesive can be selected, which is simple, reliable and wear-resistant. It can also be made up by the method of oil seal displacement.
