For hydraulic cylinders, the cylinder manufacturers point out that they are generally not exhausted, and are exhausted through the fuel tank. When the oil in the oil tank flows, the gas can automatically escape from the oil because the oil tank can communicate with the atmosphere.
However, if the cylinder exhaust is not good and the air cannot be automatically discharged, in the opinion of the cylinder manufacturer, this will lead to bad or serious consequences. For example, the piston in the cylinder does not move normally, or some other problems. So at this time, it is necessary to install the exhaust device in the hydraulic cylinder.
For the installation of the exhaust device, the installation position can be the upper part of the hydraulic circuit, but it does not have to be on the hydraulic cylinder. Also, if the cylinder is mounted vertically, the ideal location for the exhaust is at the cylinder bore below the piston. In addition, the unloading valve in the piston can also be used as an exhaust device.
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