Tractor Repair: 555C Ford, drive shaft, linkage

Question
How do you engage the 4 wheel drive

Answer
I looked at the parts manual and it looks like there is a lever next to the seat. You might have to get underneath the machine and check the drop box where the drive shaft is coming out of and look for the linkage and see where it goes. It is mechanically turned on with a collar over a shaft so it should be fairly easy to spot.