Quoted from Frax:
How the hell do you get to the back edge of the playfield to clean and take the ramps off? It's on a damn pivot nut and it's too close to the top edge to fit any tools back there.. is the only option to remove the damn entire playfield from the game? I'm not sure my wife and I can get it out, it's too bloody heavy.
I am afraid so it’s a giant pain in the ass but the only way is to pull it from the game