Anhui excavator for you to introduce the reasons for the hydraulic oil into the hydraulic oil

The reason of excavator hydraulic oil Black: one containing metal impurities; two is the work environment is not good, the pollutant into the hydraulic oil.

Here is a look at the iron source and how to prevent:

1 most likely to be the high speed of the pump and produce the wear debris, on and pump rotation of all the components you have to take into account, such as bearings, volume chamber, etc.;

2 hydraulic valve spool back and forth movement, the cylinder back and forth movement of the grinding chip, but this is not a short time this phenomenon;

3 because of the new machine, the equipment running will produce large amounts of iron, when I do not know you whether the oil hydraulic oil tank in all empty, and with new oil circulation system, the tank with cotton cloth to wipe clean and then add new oil, if not, there may be a large number of iron residue in the tank that will lead to new oil polluted black;

Look at the outside environment influence:

You should check whether your hydraulic system is closed, the breathing hole is intact; check the hydraulic part of the exposed parts of the device, see if the seal is intact, such as the oil tank, etc.;

1 for hydraulic oil, no change;

2 oil seal aging;

3 excavator working environment is too bad to cause filter block;

4 hydraulic pump into the air there is a lot of air bubbles;

5 hydraulic oil tank is connected with the air, the air of dust, the use of long time will enter the fuel tank, the oil will certainly be dirty;

6 oil does particle size test to meet the requirements of cleanliness. Can be sure that the higher the temperature of the hydraulic oil can be replaced with high quality hydraulic oil, check back oil filter, cooling circuit, the focus is the radiator of the hydraulic oil, usually in accordance with the provisions of maintenance!

Why hammer hydraulic oil blackened:

Broken hammer lead to the hydraulic system of the excavator hydraulic system is not only a dust caused by dust, but also due to filling the butter is not standardized.

For example: when the spacing between the bushing and the drill rod is more than 8 mm (Xiaomuzhi to insert), suggest that with the change of the average bushing, the replacement of the 2 coat need more replacement of 1 sets. Broken hammer in the replacement of oil pipe, steel pipe, back to the oil filter element and other hydraulic accessories, the need to be the interface of the dust or debris cleared to loosen the replacement.

When filling the grease will require the hammer to lift steel pressure piston inside, each filling only when filling the grease gun gun can be semi standard. Because if there is no pressure in steel (when the grease, then filling in the steel tank butter will limit, when steel work the butter will jump directly to the main oil seal, hammer with the reciprocating motion of the piston into the butter hammer in the cylinder, and then with the hydraulic oil cylinder hammer the body into the hydraulic system of the excavator, hydraulic oil metamorphism, black)

Processing method:

1 correct use of butter.

2 installation of return oil filter device.

3 the installation of water spray device to reduce the outside dust.

4 upper and lower bushing wear too large, timely replacement bushing.

5 air inlet check valve is broken or blocked, check the check valve regularly.

6 timely replacement of dust seal.

7 correct use of broken hammer (don't often play in the side).