How often is the hydraulic oil of an excavator changed? Don t say anything domestic and imported!

To be real, hydraulic oil, not black, not white, no impurities can continue to use, I don't know what size of your hydraulic oil is? If it is No. 46 hydraulic oil, it is best to replace it, because the weather is hot, and the hydraulic oil heats up badly.

Under normal circumstances, there is no need to change the oil at this time, we have not changed it for 6000 hours with the Lewitt brand, the new machine will be used longer, if your oil becomes black and viscous, it will basically be scrapped.

If it is not replaced for a long time, the viscosity of the hydraulic oil will be reduced, and the mechanical design analysis will directly lead to the abnormal wear and tear of the hydraulic system parts such as injection, valve, multi-way reversing valve, oil seal and so on in the main pump of the excavator.

Does the excavator hydraulic oil need to be replaced?

1. Open the fuel tank cover to check the color of the hydraulic oil of the excavator, if you find obvious milky white and turbid, this situation means that the oil contains a lot of water, and it must be replaced regardless of the maintenance time.

2. The color of the hydraulic oil of the excavator can be observed to be black, indicating that the effect of the oil has been greatly reduced, and it will seriously affect the operation of the hydraulic parts, because the blackening and deterioration of the oil is a long-term formation process, indicating that the valve core is running back and forth or the cylinder is running and wearing has been more serious.

3. You can extract a small part of the excavator hydraulic oil, check whether there are metal chips through the sunlight, or grind the excavator hydraulic oil back and forth with your fingers to feel whether there is frost and granularity, both of which indicate that there are metal filings in the oil, which will cause wear and tear of precision parts such as hydraulic pumps for a long time.

4. Check whether the hydraulic system is closed, whether the breathing valve is intact, check the exposed part of the hydraulic cylinder of the excavator to see whether the seal is intact, such as the dust ring of the cylinder, etc., if the excavator hydraulic oil is exposed to the air for a long time, it will also deteriorate.

It depends on how the oil you use, under normal circumstances, there is no need to change the oil at this time, we have not changed it for 6000 hours with the Liwitt brand, the new machine will be used longer, if your oil becomes black and viscous, it will basically be scrapped.

The maintenance of the excavator is determined by the working hours, and the chronograph should be recorded for each oil change maintenance as the basis for the next maintenance

1. The oil and filter of the engine are generally replaced once every 250 hours, and the air filter is cleaned (purged) every 50 hours.

2. When it is found that there is dust in the safety filter element (small filter element), the air filter should be replaced, but the working environment is bad, and the cleaning and replacement time should be shortened.

3. The diesel filter depends on the different quality of diesel, flexibly grasps the replacement time, and discharges coarse filter impurities and water frequently, which is generally replaced once in 500 hours.

4. Hydraulic oil.

The service cycle is long, the color is normal, the oil temperature is not high, continue to use, and the hydraulic oil filter element is cleaned once every 250 hours.

It needs to be replaced every 500 hours.

Hydraulic oil uses the hydraulic medium used in the hydraulic system of liquid pressure energy, which plays the role of energy transmission, anti-wear, system lubrication, anti-corrosion, anti-rust and cooling in the hydraulic system.

For hydraulic oil, first of all, it should meet the requirements of the liquid viscosity of the hydraulic device at the working temperature and the starting temperature, because the viscosity change of the lubricating oil is directly related to the hydraulic action, transmission efficiency and transmission accuracy, and also requires that the viscosity temperature performance and shear stability of the oil should meet the various needs of different uses.

For single earthwork, Caltex hydraulic oil is generally replaced once every 1500 hours. Factory standard 1000 hours replacement 1 time. The maintenance time of the hammer excavator should be halved.

Hello, I'm glad to answer for you, the hydraulic oil is changed once a year. Hydraulic oil is the hydraulic medium used in the hydraulic system using liquid pressure energy, which plays the role of energy transfer, anti-wear, system lubrication, anti-corrosion, anti-rust and cooling in the hydraulic system. The following are the precautions for hydraulic oil change:

2. During the oil change process, the stop must be placed in front and behind the track, the lock pin must be inserted into the slewing mechanism, and it is strictly forbidden to stand under the bucket, stick and boom when the action is carried out;

3. When disassembling each pipe joint, the system should be placed freely on the ground, and the pipeline can be disassembled only when it is confirmed that there is no pressure.

Question: I work 600 hours a month, do I need to change the hydraulic oil?

Question: 600 hours a month is full load work, because it is a cotton picker, including the walking drive, all of which rely on hydraulic transmission, do you think it needs to be replaced?

Ask questions and work continuously for a month.

Before changing the hydraulic oil, it is necessary to pay attention to the fact that the hydraulic oil is bad. Hydraulic fluids on the market.

2.Never start the engine or ridge field when it is not fully filled with oil There are many things to look out for during the process of changing the hydraulic fluid for an excavator. For example in the fuel tank no.

3.Ensure the safety of the oil change process first In order to ensure the safety of the hydraulic oil change process, there are several precautions that should not be ignored. First, tracks.

4.Special attention should be paid to the disassembly and assembly of pipe joints In the process of completely replacing and replacing the hydraulic oil, it is necessary to disassemble and assemble the oil pipe joints, and the operation is the most human.

5.Exhaust of hydraulic pump and cylinder After filling the hydraulic oil shirt and connecting the pipe joints, the hydraulic pump and hydraulic cylinder must be discharged again.

Here are three small details to pay attention to when changing the hydraulic oil of an excavator:

The oil change should be completed on the same day, not sold early overnight, because the moisture in the air will form water vapor when the night cools down, condense into water droplets or even frost, and enter the system to make the metal parts corrode, causing hidden dangers of failure;

When changing the oil, stoppers must be placed in front and behind the track, and the slewing mechanism must also be plugged into the upper row with the song latch.

The hydraulic excavator must replace the hydraulic oil according to the oil change cycle, otherwise it will pollute the system and cause the failure of the hydraulic system. According to statistics, about 90% of the failures of the hydraulic system are caused by the collapse of the system. Preparation for the replacement of hydraulic bridge pressure oil, as well as precautions when changing hydraulic oil.

There is no hard and fast regulation for the hydraulic oil filter element, and it will take about 6 months to replace it

1. Before replacing the hydraulic oil filter element, put off the original hydraulic oil in the box, check the oil return filter element, oil suction filter element and pilot filter element, and see whether there are iron filings or other impurities.

2. When replacing the hydraulic oil, all hydraulic oil filter elements (return filter element, oil suction filter core, pilot filter element) must be replaced at the same time, otherwise it is equivalent to not changing; Different grades and brands of hydraulic oil should not be mixed, because this may cause the hydraulic oil filter element to react and deteriorate and produce flocculents;

4. After adding oil, pay attention to the main pump to exhaust air, otherwise the whole car will temporarily have no action, the main pump will make abnormal noise (air sonic boom), and the air cavitation will damage the hydraulic oil pump. The method of air exhaust is to loosen the pipe joint directly at the top of the main pump and fill it up directly; Do regular oil testing, hydraulic filter elements are consumables, usually need to be replaced immediately after blockage;

5. Pay attention to flush the system oil tank and pipeline, and pass through the refueling device with filter when refueling. Do not let the oil in the tank come into direct contact with the air, and do not mix the old and new oil, which is still helpful for the dust to rise earlier than the service life of the filter.

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