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What are the contents of excavator maintenance?

Print  Published Time:2018/7/10 16:33:23

1. Fuel management

Different brands of diesel fuel should be selected according to different ambient temperature. Diesel oil should not be mixed with impurities, dirt and water, otherwise it will cause premature wear of fuel pump. The high content of paraffin and sulfur in inferior fuel oil will cause damage to the engine. After daily operation, the fuel tank should be filled with fuel to prevent water droplets from occurring in the inner wall of the tank. Open the drain valve at the bottom of the fuel tank before daily operation; After the engine fuel is exhausted or the filter element is replaced, the air in the road must be drained.

2. Management of other oils

Other oils include engine oil, hydraulic oil, gear oil, etc. Different brands and grades of oil cannot be mixed; Different kinds of excavator oil added in the production process of chemical or physical additives are different; Keep the oil clean and prevent the impurities (water, dust, particles, etc.) from mixing in. Select oil label according to ambient temperature and use. When the ambient temperature is high, the oil with high viscosity should be selected, and when the ambient temperature is low, the oil with low viscosity should be selected. The viscosity of gear oil is relatively large to adapt to larger transmission load, while the viscosity of hydraulic oil is relatively small to reduce the resistance of liquid flow.

3. Lubricating grease management

The use of lubricating oil (butter) can reduce the wear of moving surface and prevent noise. The grease shall not be mixed with dust, sand, water and other impurities when stored and kept. When adding, try to squeeze out all the old oil and wipe it clean to prevent the sand from sticking.

4. Maintenance of filter element

The filter element ACTS as a filter for impurities in the oil or gas path, preventing them from entering the system and causing failure. The filter elements should be replaced regularly in accordance with the requirements of the operation and maintenance manual. When replacing the filter element, check whether metal is attached to the old filter element. If metal particles are found, timely diagnosis and improvement measures should be taken. Use pure filter elements that meet the requirements of the machine. The filter capability of the fake filter element is poor, and the quality of the filter layer is not up to the requirements, which will seriously affect the normal use of the machine.

5. Regular maintenance


After 250H operation of the new machine, the fuel filter element and additional fuel filter element should be replaced. Check engine valve clearance.

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