RE: Lead foot driver causes Curtis 1221C to complain

["David M. Stensland" <stensland@peakpeak.com>]

So try to keep that motor spinning at 4000-5000 rpm and you will have
much
less heat generated, as a side benefit the higher motor rpm means that
it's
internal fan moves more air which helps keep the motor cooler and
extends
it's life.
----

It's a good practice to watch the ammeter as well as the tachometer.
Depending on the make & model, DC series wound motors have efficiency
"sweet spots" that may exist well below the 4000 - 5000 rpm stated
above.  If you run the motor above this sweet spot and watch the
tachometer you'll see the law of diminishing returns in action.

At some point it becomes more sensible to shift to a higher gear and
reduce the ever-increasing current flow (and resultant heat) than
lifting a com bar in an effort to keep things cool.

-Dave