Need assembly / configuration for tubing and inner parts

Bought this Bissell proheat select 2x second hand and it was't spraying so I opened it up to trouble shoot and one thing I noticed was one tube was not connected and one screw didn't match so obviously had been opened so i need a diagram or an actual picture of inside the unit to make sure I and whoever owned prior put everything in the right spot.

It's sort of a metallic plum colored unit. bissell proheat select 2x