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Motor Replacement - Logan 200

Discussion in 'ELECTRICAL ISSUES - POWER YOUR MACHINES & SHOP' started by middle.road, Jul 7, 2017.

  1. middle.road

    middle.road Active User Active Member

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    Next project... (as if I don't have enough already.) Thinking of swapping in a Tablesaw motor.
    Need some learned opinions.
    There's a 1/2 HP 1750RPM Craftsman dual shaft on it now. It is a bit long in the tooth, stalls out. Has served me well for ~20 years.
    As I was rummaging around for a capacitor for the other project, I realized that I have two 1HP (3450RPM) Craftsman motors off of tablesaws. ((I really need to take inventory))
    Am I OK in assuming that if I change the lower pulley to ~2" I would be OK.
    It is a 4" - 4-1/2" now on the 1/2HP 1750RPM motor.
    The Black motors a a tad smaller overall than the old one.

    Thanks, _Dan


    Logan-Pullies-r.jpg Logan-Motor-r.jpg 0707172003-r.jpg
     

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  2. middle.road

    middle.road Active User Active Member

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    Second post because I didn't make the tags large enough and Opera won't let me 'Advance Option' Edit the post.
    Larger picts of the tags.
    0707172004-r.jpg 0707172004c-r.jpg
     
  3. Nogoingback

    Nogoingback United States Active Member Active Member

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    It might be easier to take your motor to someone that can rebuild it. I've never done it, but a number of folks on the forum have said it's not too expensive. Sometimes all they need is a capacitor.
     
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  4. CluelessNewB

    CluelessNewB Active Resistor H-M Supporter-Premium

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    3450 RPM is twice as fast as the original motor. According to the Logan FAQ ( http://www.lathe.com/faq/index.html#_Toc95180283) the original two step pulley was "approximately 2.31" & 4.28" in diameter". With the 3450 motor you will not be able to find a pulley small enough to use the lower speeds. Typically the 3450 motors will be significantly louder, disturbing the peace and tranquility of watching your lathe run.
     
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  5. middle.road

    middle.road Active User Active Member

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    Thanks, I had a feeling there was something obvious that I was overlooking.
    During the hunt for the capacitor I started to attempt to consolidate and organize.

    I've never used the 2.31" groove of the pulley, I've got a 1" long set screw through it holding the key in place, there's no 'hub' on this pulley.
    Also the pulley has a 5/8" to 1/2" reducer in it.
    It's usable for the time being. I'll have to check on the motor repair services available in the Knoxville area...
     

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