Excavator Lovers Need to Know How to Maintain The Excavator

The purpose of regular maintenance of the excavator is to reduce the failure of the excavator, shorten the downtime of the excavator, extend the service life of the excavator, and improve the working efficiency of the excavator. According to scientific statistics, as long as the fuel, other oil, water and air inside the excavator are managed, it can reduce the failure by 70%. After all, the failure of many excavators is due to the lack of regular maintenance.

1. Fuel management

Different types of diesel oil should be selected according to different working environment temperatures. Try to choose high-quality diesel. The high content of paraffin and sulfur in inferior diesel will cause damage to the engine of the excavator. It is important to note that diesel cannot be mixed with impurities such as dust and water, which would otherwise cause severe wear on the fuel pump. After the daily operation, the fuel tank should be filled with fuel to prevent water droplets from forming on the inner wall of the tank. Open the drain valve at the bottom of the fuel tank before the daily work. After the engine fuel is exhausted or the filter element is replaced, the air in the lane must be drained.

2. Management of lubricating oil

The use of lubricating oil can reduce the wear on the surface of the excavator components during exercise and prevent noise. Do not mix dust, sand, water and other impurities when storing the lubricant. When filling the lubricating oil, try to clean all the old oil to prevent the impurities from sticking.

3. Management of other oils

Other oils include engine oil, hydraulic oil, gear oil, etc. The oils of different models cannot be mixed. Different types of excavator oils are added with different additives in the production process. It is necessary to ensure oil cleaning and prevent debris (water, Dust, granules, etc. are mixed in, and the type of oil is selected according to the ambient temperature and use. The viscosity of the gear oil is relatively large to accommodate large transmission loads, and the viscosity of the hydraulic oil is relatively small to reduce the resistance to liquid flow. If the ambient temperature is high, oil with high viscosity should be used. For low ambient temperature, oil with low viscosity should be used.

4. Filter maintenance

The filter element acts as a filter to filter impurities in the oil path or the gas path, preventing it from invading the inside of the system and causing malfunction. Various filter elements should be replaced periodically according to the requirements in the operation and maintenance manual. When replacing the filter element, it should be checked whether metal particles are attached to the old one. On the filter element, if there are metal particles found, it is necessary to find the cause and take corresponding measures. The use of high-quality filter elements that meet the requirements of the excavator, the poor filter capacity of the inferior filter element will seriously affect the normal use of the excavator, which may cause serious consequences, and will not be worth the candle.

5. Regular maintenance

Every 100H maintenance project

Check the oil level in the swing mechanism box, the water and sediment discharged from the fuel tank, the boom cylinder pin shaft, the boom pin, the boom cylinder rod end, the arm cylinder pin shaft, the boom , stick connecting pin, stick cylinder rod end, bucket cylinder head pin shaft, half rod connecting rod connecting rod, stick rod, bucket cylinder rod end, bucket cylinder head pin shaft, stick connecting rod Connecting pin.

Every 250H maintenance project

Check the tension of the fan belt, check the tension of the air conditioner compressor belt, check the oil level in the final gearbox, check the battery electrolyte, replace the oil in the engine oil sump, replace the engine filter, and lubricate the slewing ring.

Every 500H maintenance project

At the same time, every 100 and 250H maintenance items, replace the fuel filter, clean the air filter inside and outside the air conditioner system, replace the hydraulic oil vent filter, check the height of the rotary pinion lubricant, check and clean the radiator fin, oil cooling Heat sink and cold heat sink, replace the hydraulic oil filter and replace the oil in the final gearbox.

Maintenance items per 1000h

At the same time, every 100, 250 and 500h maintenance items, replace the oil in the swing mechanism box, check the oil level of the damper housing (return oil), check all the fasteners of the turbocharger, check the turbocharger rotor The clearance, the inspection and replacement of the tension of the generator belt, the replacement of the anti-corrosion filter, and the replacement of the oil in the final transmission.

Maintenance items every 2000h

First complete every 100, 250, 500 and 1000h maintenance items, clean the hydraulic tank filter, clean, check the turbocharger, check the generator, start the motor, check the engine valve clearance, check the shock absorber.

6. Excavator maintenance for not used for a long time

When the excavator is stored for a long time, the whole machine should be washed and dried before being stored in a dry indoor environment. If it is limited to outdoor conditions, the machine should be parked on a well-drained concrete floor. Full fuel tank, lubricate all parts, replace hydraulic oil and oil. Start the engine once a month and operate the machine.