Lubricating grease management 

The use of lubricating oil (butter) can reduce the wear of the moving surface and prevent noise. When storing grease, do not mix dust, sand, water and other impurities; lithium-based grease G2-L1 is recommended, which has good anti-wear performance and is suitable for heavy-duty working conditions; when filling, try to squeeze out all the old oil and wipe it clean to prevent sand adhesion.