Cylinder strain, cylinder wear, high hydraulic oil temperature and dirty hydraulic oil are all factors that lead to oil leakage.
The main cylinder seal ring and the buffer seal ring are the two very critical parts of the cylinder seal ring, and the quality of the piston seal ring is also very critical. Once the piston seal ring is faulty, it will lead to the loss of the arm. When changing the cylinder seal ring, we must check whether the cup has any problems, which affects the pull cylinder and the offset cylinder of the cylinder
The quality of the sealing ring is also very critical, the support ring has a very critical point, that is, his thickness must match, if it does not match, it will lead to a live cylinder, and the key point of the buffer ring is that the rub ring must not be installed in reverse, if it is installed in reverse, it will immediately leak oil!