[electrogram]

I go round the edge of the speaker between the cone and frame the magnet is attached to with a bent paperclip to get any accumulation of fluff out. I have slackened the two screws on the magnet and tapped the magnet so it's not rubbing on the voice coil/former. This can take quite a while to get right. I'm not sure if the screws hold the whole magnet assembly to the frame, or hold the pot and pole pieces together, either way I seem to have 'got away' with doing this. Usually if do this on a normal speaker it is extremely difficult to realign the pot and pole pieces.
I think I have once taken the whole front frame off, I think it is just pressed in, but you risk damaging the cone doing this as it may be stuck to the front frame in places. See what others say