The spiral swing oil cylinder should focus on two aspects when inspecting, one is the piston of the oil cylinder, and the other is the sealing effect between the inner wall of the cylinder and the piston. In fact, these two points are inseparable from the piston. The piston of the oil cylinder is the main component to prevent the internal leakage of hydraulic oil. During the inspection process, the machine can be operated according to normal operating specifications, and then the reversing valve is operated to extend the piston to the extreme position. Open the oil port of the oil return line of the oil cylinder and observe whether there is any problem with the oil cylinder. In addition, due to the unsatisfactory sealing effect between the inner wall of the cylinder barrel of the spiral swing cylinder and the piston, leakage failure may also occur. During the inspection process, if there is no strain in the cylinder, it can indicate that the piston and the inner wall of the cylinder have relatively severe wear, so the piston needs to be replaced.
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