I just sent 7 pictures and the serial number over to Dewayne. I mentioned your name. He sounded like he wants to help.
I now have the electrical diagram for the 40F 3 pages. I also will post the joysticks that were used on these machines. The quality of the wording is poor on 2 of the 4 sheets. If anyone can fill in the blanks that would be appreciated.
If you are using a PC try this. Right click on the picture and select "Save Picture As".
Use the name provided or change it. Then save it as a JPEG file. Change the destination to "Desk Top”. I uploaded it actual size. From your desk top click to open the JPEG image. You will be able to make the diagram any size after that. I increased it to 150 percent and picked out a few things. Let me know if it worked for you. If you have any problems PM me.