Translating image: -> on, <- off, -> up, <- down. Makes sense?

Can you understand the instructions beside? The worst is this is not a tool only for experts. This is a hidraulic elevator for public transportation in Belo Horizonte, Brazil. This would be a great help for wheelchair users.

A Local Law obligated public transportation to have a elevator. The issue is I already had saw some situations whose people gave up to use that tool, due the complexity in use. It’s sad to see an initiative to acessibility being abandoned due lack of usability.