stuck rear wheel drive hub

[Val]

Hello,

I am trying to check the dampers on my rear  wheel.

And cannot remove the rear sprocket coupling. It is stuck. In the parts catalog that is called rear wheel drive hub. Haynes manual calls it rear sprocket coupling. There are 6 drive hub dampers I want to check.

Any help is appreciated. Am I missing something?

I have removed the rear wheel and the sprocket coupling is supposed to get off. It is stuck, I mean like welded stuck. I have tried gentle hammering.

Any ideas?

cheers
Val