Five major inspections for excavators: How many have your beloved machines undergone?

1. Blood test: Analysis of hydraulic oil contamination degree and filtration

Function: To prevent wear of hydraulic components such as the main pump and control valves caused by hydraulic oil contamination

Hydraulic oil can be compared to the "blood" of an excavator. Just like the human body, the quality of hydraulic oil directly affects the health of the entire hydraulic system. The decline in the properties of the oil affects the operational efficiency of hydraulic equipment and may even lead to malfunctions. Moreover, the cost of hydraulic component failures is far greater than the cost and time required for oil maintenance. In addition to regularly changing the hydraulic oil, filtering the hydraulic oil can eliminate impurities and other contaminants, reduce the wear of hydraulic components, achieve the maximum equipment efficiency, and save equipment maintenance costs.

Doosan's comprehensive inspection vehicle is equipped with a hydraulic oil contamination level detector and an oil filter, providing precise inspection and filtration services for hydraulic systems

2. Lung examination: Clean the filter element and radiator

Function: Ensure that filter element components effectively block external debris from entering the system, reducing the occurrence of problems such as high temperature and poor cooling

During the operation of equipment, even if the surrounding environment is excellent, the internal and external air filters, air conditioning filters, condensers, radiators, oil coolers, etc. will all be contaminated or even clogged as the equipment is used, leading to various faults of different sizes and affecting the use of the equipment. Regular cleaning of the above components can reduce equipment malfunctions.

The Doosan comprehensive inspection vehicle is equipped with a power source, an air compressor and an air gun, etc., and can perform cleaning based on the air compressor

3. Cardiac function tests: Engine and fuel cleanliness tests

- Function: Reduce the occurrence of engine wear, sintering and other faults caused by overly dirty fuel, master engine operation data, and detect potential faults

The engine is like the heart of an excavator, providing power for the machine. Regularly checking whether the engine's appearance and structure are damaged, whether the engine load, smoke, and exhaust are in good condition, whether there is any oil or water leakage, and whether the radiator and oil cooler are in good condition, and choosing high-quality and regular source fuel, is a necessary condition to ensure the healthy operation of the engine.

The Doosan comprehensive inspection vehicle is equipped with engines such as DDT and DMS-3, as well as inspection tools and a fuel filter

4. Physical fitness test: Comprehensive performance inspection of the excavator

- Function: Detect operational data and prevent faults from occurring

Equipment performance testing is also an important part of excavator inspection. The test results are helpful for predicting performance faults. Performance testing mainly includes: maximum speed, low speed, action speed, working pressure, etc

The Doosan comprehensive inspection vehicle is equipped with over 180 types of inspection tools, including hydraulic test kits and precision optical tachometers

5. Living habits: Excavator operation habits and maintenance habits

Function: Guide the formation of good operation and maintenance habits to extend the service life of equipment

Good driving and maintenance habits for excavators have a significant impact on the machine's lifespan and operational efficiency. During the operation or use of excavators, many accidents and malfunctions are caused by neglecting safety and not following the basic safety regulations for operation and maintenance. Therefore, mastering and paying attention to safety operation procedures can prevent accidents from happening and eliminate potential accident hazards.