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KitchenAid K5sswh mixer after replacing plastic gear-no power

After replacing melted plastic gear, mixer will not power on. Zero power. Could the large black spring loaded magnetic screws on the sides of the mixer be in the in wrong way?

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  • Anonymous Feb 25, 2010

    Dear hslincoln,
    RE: There is a new
    Solution for the problem you posted on FixYa



    I want to thank you for
    your very very helpful answer to my question. My son, who is a genius fixed the
    gear, lubricated the mixer but it was dead when he put it back together. He knew
    it had to be something with the large magnetized black screws on each side. When
    I fixed the mixer per your instructions. My son gave me all kinds of praising Kutos. I finally
    confessed that you sent me the link to the diagram that showed exactly what to. It
    was fixed within 3 minutes. Thanks-a-million!




    I want to send a paypal
    payment and give you rave ratings! How do I do that?




    THANKS

    Floss
    Covino




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  • 235 Answers

Hi COVINIO. Yes, the "large black spring loaded magnetic screws on the sides of the mixer" are your mixer's brushes, which supplies electricity to the electric motor. (The black cap is the brush cover). I suspect that one or both of the brushes is (are) not seated properly. Did you remove the brushes to replace them or were you just inspecting them, when you replaced your plastic worm gear?
The brushes need to be installed so that they both seat correctly on the armature's commutator. See the illustration below:
KitchenAid K5sswh mixer after replacing plastic ge - cb20d79.jpg
I'd suggest removing them again and making sure the concave contact face rests completely on the armature’s commutator. If you've turned it 90 degrees too much, it won’t seat properly and you get no power to the motor.
It would also be helpful to have the Parts List manual on hand. If you're lacking one, you can download a PDF version from the KA website at: http://www.kitchenaid.com/flash.cmd?/#/page/home.
Click on Customer Care>Locate Manuals & Guides> Enter the 6 character model number, in your case use KSM50P (Your K5SS mixer falls within this manual), and select the first file KSM50P.pdf (438.31 KB) listed under Parts List (4) and then check to verify this matches your mixer model.
Turn to pages 6 & 7, titled “Motor And Control Parts”, which provides an exploded view for the disassembly and reassembly of your mixer’s electrical components, along with all the parts. Locate Illus No 47, Brush holder assembly that includes #28, 32, 33, 34 & 46 which is the brush holder insert, and Illus. No. 29, brush & Spring assembly respectively. The illustration along with the picture above regarding the orientation of the brushes should get your mixer powered back up and operational. Good luck! I hope this helps. Howard, Burke, VA
If this solution has been helpful to you, please rate it, thanks! -hslincoln

Posted on Jan 29, 2010

Testimonial: "Dear hslincoln,Thank you for your very helpful link to diagram that showed exactly what to. It was fixed within 3 minutes"

  • 3 more comments 
  • Howard Lincoln
    Howard Lincoln Feb 25, 2010

    Hi Floss, Thank you very much for your kind words and offer of a payment to PayPal. The knowledge that my solution helped get your mixer running again is more than sufficient compensation. If you still feel a need though, offer what you would have sent to PayPal to your son for his help or make a donation to Haiti Relief in my name. That would be appreciated.
    Wishing you a great weekend! - Howard, Burke, VA

  • torsoboy Nov 14, 2010

    Although I knew that my brushes were replaced incorrectly, I couldn't figure out the correct way to put them. I tried changing them around for over an hour, and it *seemed* like I had tried every possible different way, but nothing would work. As a last ditch effort, I got a flashlight and looked into the screw holes to see if I could see anything different that might help me know which way the brushes were supposed to go. And sure enough, there was! The brushes have a corner that is notched out of them, and if you look into the screw holes on the machine you can see one corner in each of them that is different than the others as well. I matched up the notched corners on the brushes with the corners that are different in the screw holes, and presto! Worked like a charm! I should have started with a flashlight to begin with. :)

  • stine3775
    stine3775 Jun 16, 2012

    Thank you all so much! I was all proud of myself for replacing the worm gear- but forgot I had 'played' with a few other things before that. The flashlight was indeed key!

  • stine3775
    stine3775 Jun 16, 2012

    Thank you all so much! I was all proud of myself for replacing the worm gear- but forgot I had 'played' with a few other things before that. The flashlight was indeed key!

  • stine3775
    stine3775 Jun 16, 2012

    Thank you all so much! I was so proud of myself for fixing the worm gear, I'd forgotten I'd 'played' with a few other things before figuring that out. The flashlight was key to getting it working again. :)

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