How to maintain the excavator hydraulic cylinder

In the last two issues, we introduced the cause of oil leakage of the hydraulic cylinder of the excavator and the precautions for use. Today we look at how to do the daily maintenance of the hydraulic cylinder of the excavator:

How to maintain the hydraulic cylinder

1. Protect the outer surface of the piston rod to prevent bumps and scratches from damaging the seal. Frequently clean up the mud and sand on the dust-proof seal ring of the cylinder and the exposed piston rod to prevent dirt from entering the cylinder and damaging the piston, cylinder or seal.

2. Frequently check the connections of threads, bolts, etc., and tighten them immediately if they are loose.

3. Lubricate the link parts frequently to prevent rust or abnormal wear in the absence of oil.

4. Regularly replace the hydraulic oil and hydraulic return filter element to ensure the cleanliness of the oil and prolong the service life of the cylinder.

5. Before the working device is running, the air in the oil cylinder must be exhausted, and a trial run of full extension and full contraction must be carried out for 5 strokes before running with load.

6. Pay attention to the temperature of the hydraulic oil, if the oil temperature is too high, the seal will be damaged or deformed. Permanent deformation or even complete failure occurs.

7. After each work is completed, the excavator needs to be parked on a flat ground, the piston rods are fully retracted, so that the oil cylinder is in a large cavity state, to ensure that all the hydraulic oil in the cylinder returns to the oil tank to ensure that the excavator hydraulic cylinder does not bear pressure.

In conclusion

The excavator hydraulic cylinder is a very important object in the hydraulic system. Once the hydraulic cylinder leaks oil, it will cause the machine to appear slow in lifting, weak in digging, etc., which will seriously affect the work efficiency. In this society where time is money, I believe this is something that many friends do not want to see. Then please be kind to your excavator hydraulic cylinder!