How to disassemble a rubber expansion joint

If the rubber expansion joint is not installed properly or if the rubber joint expansion joint needs to be replaced, it has to be disassembled and reinstalled or replaced.
The rubber expansion joint is disassembled by using the method of lever principle. After the assembly of the rubber expansion joint is flanged in the internal, we need to use the pry bar tool in his edge buckle a few small mouth, and then through the appearance of multiple small mouth, is the rubber joint and the flange is completely in the classification state, so you can, this method is relatively simple method, is also commonly used, but it should be noted that the disassembly method is not simple, one is not careful will be the tool is completely ejected And cut the rubber flexible joint.
Disassembly according to the installation method of the joint: that is, the ball and flange are semi-separated by rotation, and completely separated by external extrusion, the advantage of this method is no damage to the rubber parts of the joint, but easy to damage the hands, this method is recommended for experienced people.
Mechanical disassembly: the use of powerful machine stretching effect, forcibly pulling the joint flange off, this way is also only applicable to the threaded rubber expansion joint, for other types of joints easy to produce greater damage to the sphere.