Company Details

  • Jining Changsong Construction Machinery Co., Ltd.

  •  [Shandong,China]
  • Business Type:Manufacturer
  • Main Mark: Africa , Asia , East Europe , Europe , Middle East , North Europe , Worldwide
  • Exporter:61% - 70%
  • Certs:ISO9001, CE, MSDS, CCC, EMC, FCC, GS, RoHS, Test Report, TUV
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Home > News > Bad breaker, is eroding your hydraulic system

Bad breaker, is eroding your hydraulic system

The reason why the Hydraulic Oil of the excavator is black:
One is to contain metal impurities;
Second, the working environment is not good, and the external pollutants enter the hydraulic oil.
Let's take a look at the source of iron filings and how to prevent them:
1 is most likely the grinding debris generated by the high-speed rotation of the Pump. You should consider all the components that rotate with the pump, such as the wear of bearings, volume chambers, etc.
2The hydraulic valve spool runs back and forth, and the grinding oil generated by the cylinder runs back and forth, but this phenomenon does not occur in a short time;
3Because it is a new machine, a lot of iron filings will be generated when the equipment is running in. I don't know if you will empty the hydraulic oil in the fuel tank when you change the oil, and after using the new oil circulation system, wipe the oil tank all with cotton cloth and then clean it. Add new oil, if not, there may be a lot of iron filings left in the fuel tank, which will also cause the new oil to be polluted and blackened;
Look at the external environmental impact:
You should check if your hydraulic system is closed and the breathing hole is intact; check the exposed parts of the hydraulic part of the equipment to see if the seal is intact, such as the dust ring of the cylinder;
1 did not change when changing hydraulic oil;
2 oil seal aging;
3 Excavator working environment is too bad, causing the Filter element to block;
4The hydraulic pump has a large amount of air bubbles in the air;
5The hydraulic oil tank is connected to the air. The dust in the air will enter the fuel tank after the use of the impurities for a long time. The oil will definitely be dirty;

6 oil products do particle size test in line with cleanliness requirements. Can be excluded is dust pollution. It can be said that the temperature of the hydraulic oil is higher! It can be replaced with high-quality hydraulic oil, check the oil return filter, heat-dissipating oil circuit, and focus on the radiator of hydraulic oil! It is necessary to maintain and maintain according to the regulations!
The reason why the breaker hydraulic oil is black:
The breaker causes the black oil of the excavator hydraulic system not only caused by dust, but also caused by the irregularity of the filling of the butter.
For example, when the distance between the bushing and the steel brazing is more than 8 mm (the little finger can be inserted), it is recommended to change the bushing. On average, one inner casing needs to be replaced for every two outer casings. When replacing the hydraulic fittings such as oil pipes, steel pipes and oil return filters, the breakers need to clean the dust or debris at the interface before releasing them.
When adding butter, you need to lift the breaker and press the steel into the piston. You only need to add half of the standard grease gun for each filling. (Because if the steel is not pressed when the grease is added, the butter will be placed at the upper limit of the steel groove. When the steel is working, the butter will directly hit the main seal of the breaker. The reciprocating motion of the piston brings the butter into the cylinder of the breaker, and then the hydraulic oil in the cylinder of the breaker is mixed into the hydraulic system of the excavator, which is the deterioration of the hydraulic oil, blackening)
1. Use the buttery posture correctly.
2. Install the oil return filter unit.
3. Install a water spray device to reduce external dust.
4. The upper and lower bushings are worn too much and the bushing is replaced at the right time.
5. The intake check valve is broken or blocked, and the check valve is checked regularly.
6. Replace the dust seal in time.
7. Use the breaker correctly (do not always hit).
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