[orbit1957]

Kevin,

You want a low speed because the engine is running too hot? Or just because? Anytime
That fan is activated you lose fuel mileage.

If you just want it to spin, look on the side of the control block for an adjustment screw and locknut.

Hi Richard, temps are good and regulating properly. Just seems to me a nice little breeze over the CAC, turbo, alternator, hyd pump, engine block and the rest of the componets would be a good moderating factor for some longevety.  A nice cooling balance for the entire rear engine  compartment that has less thermal stress is a good engineering design IMO. It would be interesting to evaluate the temps back there to see what hot spots could be mitigated. A simple air scoop could provide some assitance without robbing fuel consumption. I'll look for that adjustment TX.
Kevin