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Old Delta 1949 bullet motor amperage

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Forum topic by Bluepine38 posted 06-21-2013 03:59 AM 3418 views 0 times favorited 4 replies Add to Favorites Watch
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Bluepine38

3341 posts in 2547 days


06-21-2013 03:59 AM

Topic tags/keywords: motor amperage tablesaw

I bought a 1949 Delta table saw with a bullet type motor that is missing the spec plate. The only thing it
has is a dustcover for the shaft hole with the letters ME on it and these numbers/letters stamped on the
case -85A010CCW. It is either a 1 horse or a 1.5 horse motor. My problem is that I can not find any
amperage listed for a 1.5 horse motor. I have seen a 3/4HP bullet rated at 9.75 amp and a 1 HP rated at
11.8 amp. Does anyone have an accurate amp rating for a single phase 1.5 HP unisaw bullet motor? Thank
you in advance if you can help.

-- As ever, Gus-the 77 yr young apprentice carpenter


4 replies so far

View MrUnix's profile

MrUnix

4216 posts in 1661 days


#1 posted 06-21-2013 05:53 AM

No idea what kind of amps the thing draws, but according to the 1950 Delta catalog (couldn’t find a 1949), what you have is a 1725 RPM, 1HP repulsion/induction motor part #85-010.

Cheers,
Brad

-- Brad in FL - To be old and wise, you must first be young and stupid

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Bluepine38

3341 posts in 2547 days


#2 posted 06-21-2013 01:31 PM

Brad, thank you very much, I had been all over that site, but had been looking at the individual saw manuals
and the rebuilding material, never thought of looking at a general catalog where they would have the
information readily available. Now I guess I will have to take the motor to K&N here in Missoula once I get
the new bearings in it and find out how to hook it up for 220 since the page says it can run on either 110
or 220. I needed a new service panel in my shop anyway. Once again, thank you for your assistance. I just
took a look at your saying, and I guess that I am finally progressing from young and stupid to old and wise
enough to ask questions.

-- As ever, Gus-the 77 yr young apprentice carpenter

View DocSavage45's profile

DocSavage45

7700 posts in 2304 days


#3 posted 06-21-2013 05:29 PM

Wow,

Hope you get a better rate for repair than I did here. I figured out it was cheaper to get a new one. But I have a grizzly.

If you can find a shop manual they often have the wiring diagrams.

Good luck!

-- Cau Haus Designs, Thomas J. Tieffenbacher

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Bluepine38

3341 posts in 2547 days


#4 posted 06-22-2013 03:14 PM

Looked at that motor again, it has four wires coming from the case, two of which were hooked to the white,
neutral wire, and two hooked to the black hot wire. You would not connect either of the neutral wires to
a hot wire, so you would have to hook each of the hot leads to a 110 leg of the 220, makes sense maybe.
But the 4 brushes on this old motor, according to “Old Vintage Machine” site are sometimes connected at 90
degrees, and sometimes at 180 degrees, wonder if one is for 110 volt and the other for 220 volt. I will keep
looking for wiring diagrams.

-- As ever, Gus-the 77 yr young apprentice carpenter

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