Just disassembled my rear hub to replace the rear brake shoes and found something odd. One the retaining studs that the shoes fit onto, has no circlip groove!

But it had a token circlip fitted as a gesture I think. Is this right on a series 2?
Also I think the brake cam (which I want to replace) was fitted incorrectly. To assemble dont you put a big washer behind the cam arm (hub side) the "O" ring on the splined side, followed by the rear brake arm, washer and circlip.
Can anyone confirm this is the correct way?
Regards Craig