we have a FKE 16 Hoist lift truck that I would like to verify the accumulator pressure on. I have a manual and it has all kinds of detail on checking and setting the pressure but no spec for the pressure. It currently has 800psi and has been disconnected for many years. We're not sure why it was unhooked and I'd like to make things right and figure the right pressure might be a good thing. Any ideas would be appreciated.