1. Fuel management
Different grades of diesel should be selected according to different environmental temperatures; diesel cannot be mixed with impurities, dust and water, otherwise the fuel pump will be worn prematurely; the high content of paraffin and sulfur in poor-quality fuel will cause damage to the engine; daily operation After the fuel tank is finished, the fuel tank should be filled with fuel to prevent the inner wall of the fuel tank from producing water droplets; the drain valve at the bottom of the fuel tank should be opened to drain the water before daily operation; after the engine fuel is exhausted or the filter element is replaced, the air in the road must be drained.
The lowest ambient temperature 0℃ -10℃ -20℃ -30℃
Diesel grade 0# -10# -20# -35#
2. Other oil management
Other oils include engine oil, hydraulic oil, gear oil, etc.; different brands and different grades of oil cannot be mixed; different types of excavator oils add different chemical or physical additives during the production process; ensure that Clean with oil to prevent impurities (water, dust, particles, etc.) from mixing in; choose the oil label according to the ambient temperature and purpose. If the ambient temperature is high, oil with high viscosity should be selected, and the oil with low viscosity should be selected for low ambient temperature; the viscosity of gear oil is relatively large to adapt to large transmission load, and the viscosity of hydraulic oil is relatively small to reduce liquid flow resistance.
3, Lubricating grease management
Using lubricating oil (butter) can reduce the abrasion of the moving surface and prevent noise. When the grease is stored and kept, dust, sand, water and other impurities should not be mixed; lithium-based grease g2-l1 is recommended, which has good anti-wear performance and is suitable for heavy-duty conditions; when refilling, try to squeeze all the old oil Remove and wipe clean to prevent sand and soil adhesion.
4. Maintenance of filter element
The filter element plays the role of filtering impurities in the oil or gas circuit, preventing it from entering the system and causing failure; various filter elements should be replaced regularly according to the requirements of the (Operation and Maintenance Manual); when replacing the filter element, check whether there is metal attached to the old On the filter element, if any metal particles are found, timely diagnose and take improvement measures; use the pure filter element that meets the machine regulations. The filtering capacity of the fake and inferior filter element is poor, and the surface of the filter layer and the quality of the material do not meet the requirements, which will seriously affect the normal use of the machine.