330 rubber coupling

[Joemar]

How is part #117 rubber coupling replaced. It is threaded at both ends. I don't get it. The one on my 330 was in two pieces and the cause of excessive vibration. Thanks a lot

[Tinkerdave]

Hi Joemar,
Yes the coupling is threaded on both ends .Your old coupling just happen to break in the center.Hope that helps.good luck.
Tinker

[Joemar]

How do I replace it? Do I skrew it into the plate first and then rotate the sander body untill it's snug? Or the other way around?

[Tinkerdave]

Hi joemar,
To do a clean repair you should also replace your posts and pad bearing.If you have all that apart it won't mater which end of the coupler you screw in first.These are all high wear parts and should be replace together but its up to you.Hope that helps.Good luck.
Tinker