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change in hp affect on dc motor speed

I recently had a bad 2hp treadmill motor replaced. For some reason the
replacement motor is 2.5hp. There is a noticeable difference in the
treadmill speed with the new motor. For example, when I set the
treadmill to 4 mph the speed according to my rough calculations is now
a little over 3 mph with the larger motor.

Is this the result that would be expected if the control board is set
up for a smaller motor or should the larger motor be the same or even
faster?

Sorry for the basic questions, I am just trying to be informed when I
call the technician about the problem with the repair that was made.

Thanks in advance,

Jim
 
R

Rich Grise

Jan 1, 1970
0
I recently had a bad 2hp treadmill motor replaced. For some reason the
replacement motor is 2.5hp. There is a noticeable difference in the
treadmill speed with the new motor. For example, when I set the
treadmill to 4 mph the speed according to my rough calculations is now
a little over 3 mph with the larger motor.

Is this the result that would be expected if the control board is set
up for a smaller motor or should the larger motor be the same or even
faster?

Sorry for the basic questions, I am just trying to be informed when I
call the technician about the problem with the repair that was made.

Either the motor has an intrinsically different running speed than the
one that it replaced, or the service tech had to change the belt
pulley for some physical mounting reasons.

I'd say, at this point, if you insist that life itself isn't already
enough of a treadmill, either ask the tech to recalibrate your MPH
readout, or use whatever it was you used to make the above observation,
and do the conversion on the fly, in your head, to get some exercise
at the top simulteneously. :)

Have Fun Treading!
Rich
 
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