I can't help much. I disassembled the bottom parts, not the top. This was my goal:dchew,
Really don't need or use the pan top of my ARCA SWISS p0, and I wonder how easy it would be to remove the pan top.
Since you disassembled your P0h at least partly, can you give me any pointers or suggestions?
And here is the mess I made to get there:
I have taken apart the top clamp and replaced it with an RRS clamp. But the p0h is different on top vs the P0. Taking off the top clamp of the p0h is accomplished by simply removing the center bolt. Then the top thin plate (right above the etched degree numbers) comes off and the little ball bearing that indents every 90 degrees goes flying off into space. The p0 seems different. I will send you a pm.