Coupling
Thread Content
The vacuum pump coupling is always worn like this.
Scrap it! Do not damage other parts! !
This coupling is useless, so choose to scrap it.
Haha, don't complain. This is a management issue. If you don't need money, just scrap it and you can't use it. If you check and replace the gasket regularly, it won't be like this, but if you save the gasket, the coupling will be useless: lol
Plum blossom elastic coupling has this problem and needs to be modified.
Pin coupling, check alignment. Replace the rubber sleeve regularly!
Disagree. In addition, the washer is omitted and the coupling is eliminated.
It is recommended to replace the diaphragm coupling, but it must be properly aligned.