Installing the wounds occurring in the part of the hydraulic cylinder, the piston and the cylinder head and other parts of large quality, large size, inertia, even with lifting equipment auxiliary installation, because the provisions of the gap is small, no matter how it will be hard to cast people, so that the end of the piston or cylinder head convex bench in the bump cylinder wall surface, very easy to cause scars. The solution to this problem: for a large number of small quantities of products, the installation of the use of authoritarian assembly-oriented tools; heavy, coarse, large, medium-sized hydraulic cylinders, only meticulous, cautious operation to avoid.
Measuring the scars caused by the contact of the instrument usually use the inner diameter micrometer to measure the inner diameter of the cylinder body, measuring the contact is the side friction side plug in the body of the hole in the cylinder wall, the measurement of the contact more than the hardness of the wear-resistant cemented carbide made. Generally speaking, the measurement of the depth of the slender scratch is slight, does not affect the operation accuracy, but if the measurement of the size of the rod is improper adjustment, the measurement of the contact hard-line inlay, will cause more serious scars. The solution to this problem is to measure the length of the measured head, in addition, using a paper tape that is only in the measuring position, affixed to the inner surface of the cylinder wall, that is, no scratches on the shape. The slight scratches caused by measurements are generally erased with the opposite or Ma Zhang of the old emery cloth.
When assembling the body of a person with a mixture of injuries caused by the hydraulic cylinder before the total assembly, all parts must be fully removed burr and washed, with burrs or dirt on the part of the installation, due to "no strength" and parts of the body weight, foreign bodies easily embedded into the cylinder wall surface, causing scars.