Tried my hands with these, the usual tricks, but found it very difficult to make them cooperate.The drivers are beautiful (my avatar) and look very well engineered. I'd be happy to learn from your experiments.
Found some pics that were maybe posted in other threads - look'em up, removal of the resistor network is worthwhile.
Here you see the three screws:
Driver assembly to the right - the soft plastic rim holds the cloth in place at the back of the driver (locked in place by the screws). Just to pull off when dismantled:
Driver assembly without cloth:
Pads had that special, comfortable and durable material (alcantara I think). Ear...
That's the cloth (driver is #13). You twist the back grid frame (#12) anti colockwise, can be difficult as there's som glue to fix it, but the bayonet lock will open with som persistance. Undo the screws, three I think, and the driver assembly will fall out on the pad side. Then it's only to pull the elastic fabric off the driver assembly.