name that motor (missing specs!) - Router Forums
 
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post #1 of 5 (permalink) Old 12-02-2013, 12:19 PM Thread Starter
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Default name that motor (missing specs!)

I recently began building Matthias Wandel's band saw. For those of you who are not familiar with the build, the link is below:

Homemade bandsaw (version 2)

For this build, one requires a motor. My father-in-law had an old craftsman horizontal compressor. I will use the motor from that.

My only problem (after getting the pulley off) is finding out the specs of the motor. It's plenty large, but how large? There's no name plate. There is one sticker on the motor that says "2HP" and another with a wiring diagram to rewire the motor from 120 to 240 volts.

The model number of the compressor is 919.176120

With this number, I found replacement parts for this model, including the motor:

http://www.searspartsdirect.com/part...76120&keyId=48

The only problem is that this page doesn't list the motor specifications!

My search continued. This last webpage listed a motor part number (MO-6226) and this substitution (Z-D20620).

A search for the part number came up with this third party dealer:

Z-D20620 3 Hp Motor MASTERTOOLREPAIR.COM

Victory, I think. This page lists specifications. However: the page says that this motor is suitable for three craftsman products. None of them are my craftsman product. Is this the right motor? If so, why is my compressor model number not listed? Also, why does the page say that the motor is 3HP when the actual motor has a 2HP sticker? Is it 3HP after rewiring? Do I even have the right motor?

The motor in each of the pictures listed looks identical to my actual motor.

Can anyone help identify my motor specs?

Thanks!

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post #2 of 5 (permalink) Old 12-02-2013, 01:52 PM
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The manual lists the 919.176120 as a 2HP unit.

http://documents.dewalt.com/document...730-176830.pdf

See page 5.

Craftsman many times plays games with HP ratings. This one seems legit. A 3HP for a replacement would not be a problem so long as the physical size, shaft are the same. So long as your wiring is up to the extra HP.

Why does a 3rd party seller list only certain models? May be the only info they have on hand? Wouldn't read anything at all into that, though.

I have found that hand tools are the best choice when I want to make mistakes at a slower rate of speed.

I don't suffer from insanity. I enjoy every minute of it.
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post #3 of 5 (permalink) Old 12-02-2013, 02:09 PM Thread Starter
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Thanks for your time Duane. I'm willing to bet that the motor is indeed 3500 RPM then, as the third party says. I was pretty concerned about the RPMs since I needed to know what size to make the new pully to step it down a bit.

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post #4 of 5 (permalink) Old 12-02-2013, 07:55 PM
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Yes Phillip, it is a 3450 RPM motor. Most air compressor motors are. Also they are lower duty cycle than most machine motors... shouldn't be an issue unless your going to use the bandsaw for hours non-stop.

I have found that hand tools are the best choice when I want to make mistakes at a slower rate of speed.

I don't suffer from insanity. I enjoy every minute of it.
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post #5 of 5 (permalink) Old 12-03-2013, 08:07 AM
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If you are paying for it check Harbor Freight and Northern tool (129.00 2hp) - $500+ is a bit much for a non-industrial motor (24/7). good choices also include Automation Direct or Amazon - 129.00 for 2hp 120 vac/3450 - Band-saws have a low start-up torque so most motors will work.

Good Luck - Baker
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