CouplingImproper use during disassembly will cause damage. In fact, the most difficult thing is to remove the hub from the shaft. For the hub that is keyed, the individual uses a three-legged puller or a four-legged puller to remove the coupling.At the same time, the selected puller should match the shape and size of the hub, and the right-angle hooks of each puller's feet should be properly connected to the rear side of the hub, so that no slippage occurs when force is applied.
At the same time, in the process of disassembly, some marks should be made for the common position between the parts of the coupling. Before the coupling is disassembled, it can be used as a reference for reassembly.For couplings used in high-speed machines, the adjoining bolts must be weighed. The markings must be clear and cannot be mistaken. The bolts are not easy to assemble. When disassembling the coupling, the individual first removes the connecting bolts.At the same time, a layer of grease is deposited due to the details of the thread, and the bearing surface of the bolt's outer hexagon or inner hexagon has been slipped and damaged. It will be more difficult to disassemble. For bolts that have been rusted or with a lot of grease, solvents (such as rust loosener) are often used. Spray the abutment between the bolt and the nut so that the solvent can penetrate into the thread, so that it can be easily disassembled.