Core Tip: According to Xingke Hardware Network, the excavator is widely used in earthwork construction. The maintenance of the second-hand excavator excavator can be extended, which can prolong the service life of the machine and reduce the operating cost. In the maintenance of second-hand excavators, as long as the fuel, smooth oil, water and air are managed, the problem of 70% can be reduced. Fuel management is the key to obtain greater economic benefits.

It is understood that excavators are widely used in earthwork construction. With the increasing production and sales of domestic excavators and the increasing quantity of used excavators, the maintenance volume of used excavators has also increased rapidly. The maintenance and maintenance of the second-hand excavator excavator can prolong the service life of the machine and reduce the operating cost. In the maintenance of second-hand excavators, as long as the fuel, smooth oil, water and air are managed, the problem of 70% can be reduced. Fuel management is the key to obtain greater economic benefits.

1. Fuel management. According to the ambient temperature, different grades of qualified fuel are used. Otherwise, the inferior fuel with high sulfur content will cause damage to the initiator; diesel oil should not be mixed with impurities, dirt and water, otherwise the fuel pump will wear out prematurely; the excavator driver is required to fill the fuel tank after daily operation, avoiding Water droplets appear on the inner wall of the fuel tank; before the daily operation, the drain valve at the bottom of the fuel tank is opened to release water.

2. Initiating the management of engine oil, hydraulic oil and gear oil. Remember not to mix different grades and grades of oil; ensure oil cleaning to avoid mixing of debris (water, dust, particles, etc.); use different grades of oil depending on the ambient temperature and use, high ambient temperature, high viscosity oil If the ambient temperature is low, the oil with absolutely small viscosity is used; the viscosity of the gear oil is absolutely large to conform to the larger transmission load; the viscosity of the hydraulic oil is absolutely small, in order to increase the liquid activity resistance.

3. Management of smooth grease. Smooth oil can increase the wear and tear of the sports exterior. When storing smooth grease, be careful not to mix dust, sand, water and other impurities. Li-based smooth grease G2-L1 is recommended. It has good anti-wear function and is suitable for heavy load. When filling, try to use old The oil is completely squeezed out and wiped clean to avoid sand adhesion.

4, the maintenance of the filter. The filter element acts as a filter to filter impurities in the oil path or gas path, preventing impurities from invading the fragmented exterior and forming faults; using the original filter element; various filter elements should be changed according to the requirements of the (manual maintenance manual), and the filter element should be inspected when the filter element is changed. Whether metal is attached to the old filter element, if metal particles are found, timely diagnosis and improvement measures should be taken.

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Label: Fuel management is the key to daily maintenance of used excavators

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