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Analysis of hydraulic system oil leakage

Update:2018-09-08

Analysis of hydraulic system oil leakage

1. Internal leakage (piston), external leakage (piston rod)

2. Oil leakage strength (drain, drip, flow)

3. Is there any obvious damage on the piston rod or piston surface of the cylinder?

4. Whether the seal is damaged during the installation of the seal

5. Daily maintenance and maintenance of the cylinder

Hydraulic system oil leakage phenomenon - internal leakage

Performance: cylinder is weak, slow, slippery cylinder

1. The wear ring on the piston is seriously worn, causing friction between the piston or the cylinder sleeve and pulling the cylinder liner, piston and seal

2. Long-term use of seals leads to failure, piston seal aging

3. When the hydraulic oil is mixed with impurities and enters the cylinder, the piston seal wears, usually iron filings, which damage the seal lip and cause the seal to leak oil.

Hydraulic system oil leakage phenomenon--external leakage

1. The piston rod is strained or aged

2. Excessive force when fixing the end cap will damage the seal

3. Cylinder inlet and outlet oil pipe joint cracking

4. Defects on the cylinder or on the cylinder end cover

5. The piston rod is pulled up, grooved, pitted, etc.

6. Hydraulic oil deteriorates, oil temperature rises and accelerates seal aging

7. Frequent use of high pressure cylinders