This is off a neighbour's kid's bike. The pawls weren't springing so I offered to take a look. I've had a couple of similar failures myself and thought I'd open it, clean it, and regrease it. Even with the chain on it felt/sounded dry, more so once I took the wheel off. It was rather stiff to remove, so I doused it in WD40 before getting the pin spanner on it. The whole thing came away in one go.
Once it was off I couldn't see any way of turning one part against another, but some of the WD40 must have got inside and freed it up, as it had started working again. I added loads of longer-term penetrating oil in the hopes it will keep going, but if it fails again, I'd like to be able to open it up and do a proper job.
So how is a freewheel like this supposed to come apart, especially if I can't turn against the cog because it's spinning freely both ways?