Question about KitchenAid KSM90 Ultra Power Series Stand Mixer

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DONT WORK I PLUG MY KSM90 IN NOTHING HAPPENS TOOK OUT BRUSH ON L SIDE AND IT LOOKS OK BRUSH ON R SIDE IS COOKED AND WONT COME OUT BRUSH IS LIKE POWDER AND WANT TO KNOW HOW TO GET TO IT AND GET IT OUT I TOOK THE BACK CUP OFF AND THE 4 SCREWS ON THE BOTTOM OF THE HOUSING WHAT NEXT?

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Hi. Before you get too far, call kitchenaid parts to find out if they still have parts for your mixer. They no longer show a parts list for the KSM90 so your mixer may end up in the trash.

Go to mendingshed.com and select the Kitchenaid products button then select Kitchenaid mixer parts. Near the top of the page locate the button for the free kitchenaid service manual. Download the manual and read about the disassembly and reassembly of your mixer.

This manual does not cover your mixer but is a usefull tool for working on any mixer. Good luck with it.

If this solution has assisted you, please rate it. ricardok45

Posted on Apr 19, 2009

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Just recheck that you really have put the brushes back in the right way, use a torch and look in the hole. The brushes can each go in 4 ways, only one of which will work. Look for the blocker and line it up with the cut off corner on the brush. It's normally at the back, one side at the top the other at the bottom. After that you need to be looking at everything you have done for a booboo. I doubt it will be water ingress. Make sure the switch contacts come together when the lever moves to position 1.

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1 Answer

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1 Answer

I took out the side bolts and removed the top, now have no power to unit. did I put it back wrong? Problem I needed to address was the paddle was too low and scraping the inside of bowl. Help with both...


sm_schedule, the side bolts you removed were, in fact, the brush holder caps, and if you remove the brushes, you cut off the power to the electric motor (armature). 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? I'd suggest removing them again and make sure the concave contact face of the brushes are resting completely on the armature. If you've turned a brush 90 degrees too much, it wont' seat properly. As far as adjusting the mixer head so that it doesn?t droop, this should be pretty easy to fix if you?ve got a small blade screw driver and a small hex driver (or jewelers screw driver). First, do you still have the KSM90 Parts List? If not, you can download a PDF version from the KA website. Click on Customer Care>Locate Manuals & Guides> Enter the 6 character model number (in your case, use KSM90P) and select one of the files that appear under Parts List. Turn to page 4 - Case, Gearing and Planetary unit, which shows the exploded view diagram and locate Illus. Nos. 29 & 30. Page 5 lists the parts as Adjusting Screw and Set Screw respectively. What?s probably happened is that over 12 years of operation, the vibrations from your mixer has caused the set screw to loosen and drop, hence the lower mixer head. Both screws will need to be ?adjusted? to move the head back to its original position. Now the problem is removing the head from its pedestal. Turn to page 8 and gently remove Illus. No. 7, Hinge Pin, with a hammer and pin driver. With the hinge pin removed the mixer head and pedestal can be separated and you should have access to adjusting and set screws. I would inspect them for wear and tear, and replace them, if you deem appropriate. It may take a few trial reassemblies to get the mixer head back to the original factory position, but once there, everything should be OK. I hope this helps! Howard, Burke, VA

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If you have had the brushes out (under the big screws on each side) verify the cut corner of the brushes are oriented properly. Look inside the hole with a flash light and you will see where the cut corner needs to be.

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