Thanks Ellen for the new project! And also to Mao for delivery. I'm going to try to make an electric prone cart out of this non-functional wheelchair.

4 bolts hold the whole top deck onto the lower frame.

Lifting the top off the sub-frame. The jib crane is very handy lifting heavier stuff like this.

Controllers: Hmmmmm... I'll have to come up with a wiring schematic.

Main frame, nice! Note suspension. It's very heavy and should work nicely for a prone cart base.