Upright X32 year 1990 wiring problem.

Hello and goog day to you! I have to bring back to life an Upright X32 scissors lift, year of manufacture 1990. It has basic relay control, but recently imcompetent people have tried to conduct maintenance and some functions are wrong or even missing. The problem comes from the missing production plate where the serial number is located at the rear side of the machine. There is something like a production number in the front side of the platform: It says “T9000432”. I don’t know whether its the serial number or not but other information is missing. This is the control box: The machine is a second hand one. I’d like to kindly ask someone who has the wiring diagram to provide it to me. Thank you!