Domestic excavator parts supplier tells you the 4 most practical maintenance methods for excavator repair

2025-02-27

Before you read this article about the maintenance of domestic excavator parts suppliers, you may have read many related articles online. Today, the editor of the domestic excavator parts supplier has compiled the four most useful maintenance methods. I hope you have read it and it will be helpful to you. The intention of implementing scheduled maintenance for excavators is to reduce machine problems and extend machine service life; Shorten the downtime of the machine; Improve work efficiency and reduce homework costs. By properly handling fuel, lubricants, water, and air, 70% of problems can be reduced. In fact, about 70% of the problems are caused by poor management.

1. Handling of fuel

Choose diesel with different trademarks based on different environmental temperatures; Diesel fuel should not be mixed with impurities, dust, and water, otherwise it will cause premature wear of the fuel pump; The high content of white wax and sulfur in residual fuel can pose a threat to the engine; After completing daily homework, the fuel tank should be filled with fuel to avoid water droplets on the inner wall of the tank; Before daily homework, open the drain valve at the bottom of the fuel tank to release water; After the engine runs out of fuel or the filter element is replaced, the air in the pipeline must be exhausted. The minimum ambient temperature is 0 ℃ -10 ℃ -20 ℃ -30 ℃. Diesel trademark 0 # -10 # -20 # -35 #

2. Handling of other oils

Other oils include engine oil, hydraulic oil, gear oil, etc; Different trademarks and grades of oil cannot be mixed; Different types of excavator oil have different chemical or physical additives added during the production process; Ensure that the oil is clean and avoid impurities (water, dust, particles, etc.) from entering; Select the oil grade based on the ambient temperature and usage. When the ambient temperature is high, high viscosity engine oil should be selected, and when the ambient temperature is low, low viscosity engine oil should be selected; The viscosity of gear oil is relatively high to accommodate larger transmission loads, while the viscosity of hydraulic oil is relatively low to reduce fluid resistance. Table 2 Selection of Excavator Oil Containers External Temperature ℃ Oil Type Replacement Cycle h Replacement Quantity L Engine Oil Bottom Shell -35-20 CD SAE 5W-30 250 24 -20-10 CD SAE 10W -20-40 CD SAE 10W-30 -15-50 CD SAE 15W-40 0-40 CD SAE 30 Rotary Organization Box -20-40 CD SAE 30 1000 5.5 Shock Absorber Shell CD SAE 30 6.8 Hydraulic Oil Tank CD SAE 10W 5000 PC200 Type: 239 PC220 Type: 246 CD SAE 10W-30 CD SAE 15W-40 Final Drive CD SAE90 1000 5.4

3. Lubricating oil processing

Choosing lubricating oil (butter) can reduce wear on moving surfaces and avoid noise. When storing lubricating grease, dust, sand, water, and other impurities must not be mixed in; Recommend using lithium based grease G2-L1, which has good anti-wear performance and is suitable for heavy-duty working conditions; When adding, try to squeeze out all the old oil and wipe it clean to avoid sand adhesion.

4. Maintenance of filter element

The filter element plays a role in filtering impurities in the oil or air circuit, preventing them from entering the system and causing problems; Various filter elements should be replaced regularly according to the requirements of the operation and maintenance manual; When replacing the filter element, check if there is any metal attached to the old filter element. If metal particles are found, promptly diagnose and adopt improvement measures; Use pure filter cartridges that comply with machine rules. The filtering ability of fake and inferior filter cartridges is poor, and the quality of the filter layer and materials does not meet the requirements, which will seriously affect the normal operation of the machine. Domestic excavator accessories