how do i clean, inspect, and repair moon/ sun roof? 97 camry

i got a sun? moon roof?

well, it lifts up and then slids down, and i think its supposed to drop down in the shut position, and then proceed to go lower in between, right? and i wrong?



i cant get it to go down any lower then the locked position, because the left rear corner wants to go and lowers a bit, which would, if left that way, leak...

which i never do.



so it leads me to believe that it needs to be cleaned, which i need a manual to show me how to disengage and disassemble the thing and then clean, and with what fluid or oil.



then, what to look for, or at least the parts overview so i can see what parts go whare so i can see whats not correct or broken.



then fix and reassemble it.



thanks to anyone who has a link to this and further information.

or ability to lead me in the right direction.