Excavator Maintenance Tips

Mar. 04, 2020

The purpose of carrying out regular maintenance on the excavator is to reduce the failure of the machine and prolong the service life of the machine; shorten the downtime of the machine; improve the work efficiency and reduce the operating cost. By managing fuel, lubricants, water, and air, you can reduce failures by 70%. In fact, about 70% of failures are caused by poor management. Excavator Manufacturer will tell you next.

1. Fuel management

Different brands of diesel should be selected according to different ambient temperatures; diesel must not be mixed with impurities, lime soil and water, otherwise it will cause premature wear of the fuel pump; high paraffin and sulfur content in inferior fuel will damage the engine; daily operation After completion, the fuel tank should be filled with fuel to prevent water droplets from forming on the inner wall of the fuel tank. Before the daily operation, open the drain valve at the bottom of the fuel tank to drain water. After the engine fuel is used up or the filter element is replaced, the air in the road must be discharged.

2. Management of other oils

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 have different chemical or physical additives added in the production process; it must be guaranteed Clean the oil to prevent foreign matter (water, dust, particles, etc.) from entering.



3.Lubricating grease management

The use of lubricating oil (butter) reduces wear on moving surfaces and prevents noise. When storing grease, do not mix dust, sand, water and other impurities.

4. Maintenance of the filter element

The filter element plays a role in filtering impurities in the oil or gas circuit, preventing it from invading the system and causing failure; various filter elements must be replaced regularly in accordance with the requirements of the (operation and maintenance manual); when replacing the filter element, it should be checked whether there is metal attached to the old On the filter element; use a pure filter element that complies with the machine regulations. The filter capacity of the inferior filter element is poor. 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.

5. Regular maintenance content

(1)After the new machine works for 250H, the fuel filter and additional fuel filter should be replaced; check the engine valve clearance.

(2)Daily maintenance; check, clean or replace the air filter element; clean the cooling system; check and tighten the track plate bolts; check and adjust the track tension; check the intake heater; replace the bucket teeth; adjust the bucket clearance; check Front window cleaning liquid level; check and adjust the air conditioner; clean the cabin floor; replace the crusher filter (optional). When cleaning the inside of the cooling system, after the engine has sufficiently cooled, slowly loosen the water injection port cover to release the internal pressure of the water tank before discharging water; do not perform cleaning work while the engine is running. High-speed rotating fans will cause danger; when cleaning or replacing the cooling When liquid is used, the machine should be parked on a level ground.

(3)Inspection items before starting the engine. Check the liquid level of the coolant (add water); check the engine oil level and fill the oil; check the fuel oil level (fill the fuel); check the hydraulic oil level (fill the hydraulic oil); check whether the air filter is blocked; check the wires; Check whether the horn is normal; check the lubrication of the bucket; check the water and sediment in the oil-water separator.

(4)Long-term storage. When the machine is stored for a long time, in order to prevent the piston rod of the hydraulic cylinder from rusting, the working device should be placed on the ground; the whole machine should be washed and dried and stored in a dry environment indoor; fill up the fuel tank before storage, lubricate all parts, and replace the hydraulic oil Apply a thin layer of butter to the exposed metal surface of the piston rod of the engine oil and hydraulic cylinder, remove the negative terminal of the battery, or remove the battery and store it separately; add an appropriate proportion of antifreeze to the cooling water according to the minimum ambient temperature.

The above is the excavator maintenance tips introduced by Crawler Dozer Supplier.

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