New blower motor for my thunderbolt

[MARSAUTOSIREN]

Gramps found an old 8hp single phase motor, freed up the relief valve, and was able to run the blower to my tbolt. Now, don't know it it's a 3400, or 1745 rpm, but I'm pretty sure he had that In mind, and got a 1745. I also hope that the .5 more horsepower won't hurt the blower. Open to all questions, and want to know if you can rewire the RCM's blower contractor for single phase.

-Steven S.

[holler]

4M blowers are rated for 3500 RPM with a 25 horse motor, so you are not going to hurt it. Besides the blowers are 10 horse from the factory.

[MARSAUTOSIREN]

thank you.

[countypoletop]

got photos?

[Taterworks]

Grandparents are the best. Make sure you value them while they are still around, and see to it that you aspire to be the same sort of person toward your own grandchildren when you have them.

I really valued my grandparents, and now that all but one have passed away, I'm glad that I did. I still see my grandmother regularly and talk about life.

When you use a motor that has lower horsepower than the one you're replacing, you need to take care not to overload it, though replacing a 10 HP motor with an 8 HP motor probably isn't enough of a change to be worried about. The blower will be fine; it can probably handle a lot more RPMs and torque than its nameplate says. Electric motors of the AC Induction type will try to run at their rated speed, and will deliver up to their maximum torque trying to do so, but when their maximum torque is exceeded, the motor will 'slip' out of phase with the incoming AC, and then it will begin to heat up. That's where you need to be concerned about failure. If the motor becomes too hot to touch during the course of normal use, it's probably overloaded, and the best way to resolve this is to remove a little bit of the weight from the relief valve, because that reduces the pneumatic load on the blower, which will in turn ease the load on the motor. Gasoline engines are different because they will actually generate their maximum heat when running at maximum power, and they will simply stall if their maximum torque is exceeded.

[MARSAUTOSIREN]

got photos?

Sorry, not until mothers day weekend.