Ok I am being lazy, therefore thought I would just post this.
There appears to be a sensor on the radiator, what exactly does it do? Is it what is telling the fan to come on?
Yes, I know I could look it up...but I figured someone in the future is going to have the same question.
For those of you running into heat issues, I am curious to know if you are running a windshield as well. Is it possible that a vacuum is created and actually just keep the hot air from the motor trapped in the cab?