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  • Craftsman air compressor

    Hey there
    Guys, I want your help with my equipment. I use the Craftsman air compressor and it is not working now because of the motor. The motor replacement specialist told me to buy a new motor. Now, I can not decide with the appropriate type of the motor. Please, advise anything.

  • #2
    Trust you are not using the air compressor to create CNG?

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    • #3
      Why not just go to searspartsdirect.com and order the correct motor for your compressor? There is a tag on all Sears products that gives you the model identification for parts ordering. This would be the "appropriate type of the motor" and I am sure the "motor replacement specialist" would agree with me.

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      • #4
        Most small piston type single phase air compressors have one or two capacitors. check the cap's first, and make sure the compressor is not locked up.

        Those motors usually outlast the compressor. Used ones do become available , a lot of those compressors sold are non asme tank units with thin tanks that rust through , so sometimes you can find used motors from scrap compressors on e- bay or craigslist.

        Be sure the replacement is a compressor duty motor,correct HP, correct rpm, and correct rotation, some are not reversible, some are.

        New compressor duty motors are $$$
        Last edited by Lakewood90712; 12-16-2015, 09:47 PM.

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        • #5
          Originally posted by Lakewood90712 View Post
          Most small piston type single phase air compressors have one or two capacitors. check the cap's first, and make sure the compressor is not locked up.

          Those motors usually outlast the compressor. Used ones do become available , a lot of those compressors sold are non asme tank units with thin tanks that rust through , so sometimes you can find used motors from scrap compressors on e- bay or craigslist.

          Be sure the replacement is a compressor duty motor,correct HP, correct rpm, and correct rotation, some are not reversible, some are.

          New compressor duty motors are $$$

          Thanks, I started my search with the Craigslist. I hope to find there the used motor. The one I liked the most of all is the baldor. I checked its specs here https://www.mrosupply.com/motors/ac-...vm3546_baldor/
          It is 3ph, and it is AC motor. Will It work on my air compressor (90 gal)?

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          • #6
            Craftsman tools have a lifetime warranty. Maybe it is not really a tool.

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            • #7
              Originally posted by silenzxc View Post


              Thanks, I started my search with the Craigslist. I hope to find there the used motor. The one I liked the most of all is the baldor. I checked its specs here https://www.mrosupply.com/motors/ac-...vm3546_baldor/
              It is 3ph, and it is AC motor. Will It work on my air compressor (90 gal)?
              99% chance the one you found from mro supply is totally un-suited for the application. It's a flange mount 1 hp 3 phase. A 90 gallon tank is going to be a lot bigger motor, like 5 and maybe even 10 or larger. It will likely be a T-frame mount. Sometimes you can mount a lower horsepower motor, but you must drastically slow down the compressor if you do. Most of the older Craftsman compressors were made by speedair. Pulleys to change drive speed are not cheap.

              ? what does the data plate on the burned out motor say ? , Do you have 3 phase power available ? Did the one you have ever work, or did you buy it non working ? . Used and surplus 3 phase motors are plentiful, and low cost, but you need the right one.

              What caused tho old motor to fail ? Be sure the un-loader is working, or any new motor will burn - out in short order.
              Last edited by Lakewood90712; 12-17-2015, 11:57 AM.

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              • #8
                90 gallon Craftsman compressor? Three phase? I sure don't remember something that large with a Craftsman label.

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