I. Get a fixed number of oil seals .
2. From the time of receiving the seals to the time of assembling them, they must be kept clean.
Three. Before assembling, check the oil seals and measure whether the size of each part of the seal matches the size of the shaft and the cavity. Before installing the oil seal, the size of the shaft diameter and the size of the inner diameter of the oil seal should be compared clearly, to match. The inner size of the cavity should be suitable with the width of the outer diameter of the oil seal. Check the lip of the oil seal for damage or deformation, and the spring for detachment or rust. Prevent the oil seal in the process of transportation without flat, by the external forces of extrusion and impact and other impacts, and destroy its true roundness.
Four. Before assembly, do a good job of machining inspection program. Measure the cavity and the shaft of each part of the correct size. Especially the inner chamfer. There should be no slope. Shaft and cavity end face processing should be clean, chamfering no damage and burr, clean assembly parts, in the shaft of the installation (chamfering) part of the burr, sand, iron filings and other debris, which will produce irregular damage to the lip of the oil seal, it is recommended that chamfered parts of the use of r-angle.
V. In the operation technique, you can use your hand to feel whether it is smooth and true round.
VI. The oil seal should not tear the wrapper too early before installation to prevent debris attached to the surface of the oil seal and brought into the work.
VII. Before installation, the oil seal should be between the lips of the appropriate amount of lithium ester added with molybdenum disulfide, to prevent the shaft in the instantaneous start-up, the lip caused by dry grinding phenomenon, affecting the lip of the surplus, and should be as soon as possible, assembly. It is recommended to cover the oil seal seat with a cloth to prevent foreign matter from attaching to the oil seal if it is not mounted immediately. The hand or tool for applying lithium grease must be clean.
VIII. The oil seal should be mounted flat and not tilted. It is recommended to use hydraulic equipment or socket tool to install. The pressure should not be too high and the speed should be even and slow.
9. Mark the machine on which the oil seal is installed to facilitate tracking and pay attention to the whole process. When installing the transition on the stepped shaft, use the copper skin to guide the transition excessively or use plastic tape to protect the transition, so as not to damage the oil seal.