Leslie,

Nope. This machine is not like that configuration. My C500-YS100 is set up with a simple standard hydraulic cylinder that works off of an orbital steering box.

I do know what you are talking about though. My C500-YS80 machine is set up like that. It has a large "sloted" screw on the end of the drag link that works in conjunction with the valve port at the end of the cylinder.

Also, I agree with you that the adjustment on that screw needs to be set properly when adjusted. It can be a real "bear" to steer when that thing is too tight.

They changed the steering configuration on the C500 machines from that drag link valved cylinder to the orbital steering system I believe some time in the early '80s.
A very good improvement on those machines back in the day I would say.

Jake