KitchenAid KSM90 Ultra Power Series Stand Mixer - Page 7 - Answered Questions & Fixed issues


It is most likely a stripped gear. Here is a link to the parts manual which contains the listing of the gears and shows you how to split the gear case.

http://shared.whirlpoolcorp.com/assets/pdfs/literature/Repair%20Part%20List%20-%208212057.pdf

Remove the chrome ring with a screwdriver by prying it off carefully. This exposes 5 screws, however they can't be accessed on all models. Remove the pin (17) that goes through the planetary housing and the drive shaft, and carefully drive the planetary housing from the shaft to expose the screws. Then remove the 5 remaining screws and split the case to expose the gears. The worn gears will be obvious.

Also check the bearings. Replace all affected parts. Remove all grease since metalic pieces will have contaminated it from any worn out gears. The grease is a special food grade grease which you can purchase along with the gears and bearings.

KitchenAid KSM90... | Answered on Apr 12, 2010 | 137 views


it sounds like the planetary has gotten loose and dropped down. Check out this parts list so you can see how it is put together.

http://shared.whirlpoolcorp.com/assets/pdfs/literature/Repair%20Part%20List%20-%208212057.pdf

Try pushing up on the shaft which holds the mixing attachments. It should not move more than 1/32 inch - if it does then something inside the gearhead is worn and you will have to take it apart. If the whole planetary moves up and down then something deeper in the gearbox is worn.

To take it apart lay it on its side and carefully pry the chrome ring off. Now drive out the pin that goes thru the planetary and the shaft. Now pull the whole planetary off its shaft. Remove the six screws underneath plus the other screws you can see from the bottom of the gearbox - there are 4 more. Now carefully pull the top half of the gearbox from the bottom half, which will expose the gears. Examine for worn parts and replace the necessary ones.

KitchenAid KSM90... | Answered on Apr 12, 2010 | 131 views


Check the brushes. They get caked up with burned flour. Remove the brush caps and pull the brushes out by their springs, being VERY careful to note the position of them since they only go back in one way. Measure the free length of the spring before pulling it out. It is critical that you write down the length sticking out with very slight pressure on it so that it is seated against the armature when you measure.

Clean the curved surface of the carbon brushes with a sharp knife being careful not to scratch the curved surface. If you have them installed wrong they will not go all the way in and will not contact the armature and it will not run. Measure the length, as done above, of the spring to make sure it is in correctly!! If it is not in correctly the spring will stick out 1/4 inch longer than it should.

KitchenAid KSM90... | Answered on Apr 11, 2010 | 105 views


It is most likely a stripped gear. Here is a link to the parts manual which contains the listing of the gears and shows you how to split the gear case.

http://shared.whirlpoolcorp.com/assets/pdfs/literature/Repair%20Part%20List%20-%208212057.pdf

Remove the chrome ring with a screwdriver by prying it off carefully. This exposes 5 screws, however they can't be accessed on all models. Remove the pin (17) that goes through the planetary housing and the drive shaft, and carefully drive the planetary housing from the shaft to expose the screws. Then remove the two remaining screws and split the case to expose the gears. The worn gears will be obvious. Also check the bearings. Replace all affected parts. Remove all grease since metalic pieces will have contaminated it from any worn out gears. The grease is a special food grade grease which you can purchase along with the gears and bearings.

KitchenAid KSM90... | Answered on Apr 06, 2010 | 318 views


Carefully pry the chrome ring from the gearhead of the mixer. Item 28 on this page :

http://shared.whirlpoolcorp.com/assets/pdfs/literature/Repair%20Part%20List%20-%208212369.pdf

You will find 5 screws under the chrome ring. Tighten them and the oil (grease) will stop leaking from the gasket which seals the gearcase halves.

KitchenAid KSM90... | Answered on Apr 01, 2010 | 294 views


It will go back in if you back off the screw that was supposed to lock it in place. Look at the mixer part of the unit and make sure that the pin slides thru the hole. If not then turn the screw ccw a turn of so. Now make sure the pin slides easily thru the two holes in the stand part of the mixer.

Now carefully line up the top and bottom halves - look thru the hole in the stand until you can see the mixer's hole line up, then slide/tap the pin into the hole

Now turn the mixer on its side and look for the screw in the mixer casting. Turn it clockwise until tight and the pin will not come out again . . . . for a longer time hopefully . ..

KitchenAid KSM90... | Answered on Mar 30, 2010 | 177 views


http://shared.whirlpoolcorp.com/assets/pdfs/literature/Repair%20Part%20List%20-%208212057.pdf

has a diagram of the locking mechanism item 9. The screw you removed was probably item 8. Look at the parts and you should be able to figure out how to get it back together.

KitchenAid KSM90... | Answered on Mar 30, 2010 | 351 views


Blender? This is a form about Kitchenaid mixers . . . assuming that's what you have,and it is a stand type mixer, look at this page:

http://shared.whirlpoolcorp.com/assets/pdfs/literature/Repair%20Part%20List%20-%208212369.pdf

And you will see the linkage which was bent/broken. Hopefully you will be able to either straighten the bent part or replace it if it is broken.

KitchenAid KSM90... | Answered on Mar 30, 2010 | 169 views


Hi, ANNEQUESTRIA, I hate it when that happens. Those ‘two big black plastic spring loaded screws’ are your mixer’s electric motor brushes. The slotted black threaded plastic parts are just the Brush Holder Caps and are protective covers to the brush holder assemblies. They allow access to the brushes when they need to be replaced without have to take the whole mixer head apart. What prompted you to remove them?
From what’s been done already, still I suspect that one or both of the brushes is (are) not seated properly.
The brushes need to be installed so that they both seat correctly on the armature's commutator. See the illustration below:
fd6ecd1.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 KSM90P mixer falls within this manual), and select the last file KSM90PSWW0.pdf (354.08 KB) listed under Parts List (16) 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 32, Brush holder assembly that includes Illus. Nos. #18, 21, 22, 23 & 31, and Illus. No. 19, Brush & Spring assembly respectively.
The Parts List 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

KitchenAid KSM90... | Answered on Mar 30, 2010 | 395 views


This is the end seal of the motor, you can get parts from manufacturer. you will need a service manual, OR go to the manufacturers web site and contact them.

KitchenAid KSM90... | Answered on Mar 18, 2010 | 204 views


try
http://www.torreelectrics.co.uk

KitchenAid KSM90... | Answered on Mar 01, 2010 | 190 views


MarBeck.com has what you need

KitchenAid KSM90... | Answered on Feb 24, 2010 | 91 views


Yes, it is very easy to fix. You will need a new coupler, which is part number 9704230. There is a set of instructions with video here: http://www.kaparts.co.uk/Howtoremoveablendercoupler/tabid/219/Default.aspx

KitchenAid KSM90... | Answered on Feb 13, 2010 | 89 views


Remove the shaft an cutter first and install the outside case of the shredder. Tighten thumb screw. You may have to lift up on a lever that runs in a groove in the shaft to remove the shaft.

Next install the shaft with cutter attached. Lube the shaft with tiny bit of mineral oil or food safe grease. Lift the lever mentioned above and rotate till the shaft seats and then drop the lever and make sure it is engaged.

KitchenAid KSM90... | Answered on Feb 03, 2010 | 99 views


Hi REDEN828, yes, you are correct. When you reinstalled them you either misaligned one or both brushes so they are not seated properly on the motor's armature. See the illustration below:
ecc681e.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, the brush 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 KSM90P mixer falls within this manual), and select the last file KSM90PSWW0.pdf (354.08 KB) listed under Parts List (16) 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 32, Brush holder assembly that includes #18, 21, 22, 23, & 31 which is the brush holder insert, and Illus. No. 19, 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

KitchenAid KSM90... | Answered on Jan 31, 2010 | 351 views


It sounds like the bar that the head hinges on has come out. It is located on the base and should be flush with the side of the mixer on both sides. Just knock it back into position and then turn the mixer over to tighten the screw that holds the hinge pin in place. It might also be that you need to adjust the height of the head by turning the adjustment screw on the hinge. Lift the head and the adjustment screw should be visible.

KitchenAid KSM90... | Answered on Jan 30, 2010 | 166 views


I needed to replace the nylon worm drive in my mixer. When I put it back together, I found that my mixer made a kind of grinding noise. The noise was due to a vibration associated with the cover for the electrical wiring in the back of the mixer. I solved my noise simply by loosening the screw to this cover. The cover is located on the back of the mixer, and the screw is on the top.
Separately, to find instructions for opening your mixer, you can go to http://neilcrockett.com/mixer.htm.

KitchenAid KSM90... | Answered on Jan 29, 2010 | 1,791 views


I determined that the switch that controls whether the mixer is on or off is controlled by a copper bar with a contact. The contact got fused to the copper bar, possibly due to a short. Since the contact got fused to the copper bar, the circuit was always connected, so the mixer was always on. The solution was to 1) unplug the mixer, and 2) take a screw driver and gently pry the contact away from the copper bar. When the mixer is in the off position, the copper bar and contact are no longer in contact. When the mixer is on, the copper bar and contact make contact. My mixer now works just fine. Yea!

KitchenAid KSM90... | Answered on Jan 29, 2010 | 724 views


Hi GWILSON622, from the symptoms you describe 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? The brushes need to be installed so that they both seat correctly on the armature's commutator. See the illustration below:
0c6a56f.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 wont' seat properly.
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, KSM90P, and select the file, KSM90PSWH0.pdf (354.08 KB) listed under Parts List (16) (check to see it 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 32, Brush holder that includes #18, 20, 21, 22, 23, and 31 which is the brush holder and brush & Spring assembly respectively. This illustration along with my initial reply regarding the orientation of the brushes should allow you to reinstall your replacements with confidence.
While your mixer is apart it would be ideal to check for any other unseemly wear and tear on the gears, etc. It can be messy but quite gratifying to diagnose and repair your mixer yourself.
Here are some links to several excellent websites that detail the disassembling/reassembly of a KA Mixer.
Between these three websites and their excellent pictures and descriptions and your Parts List manual, you should now be able to completely disassemble and reassemble your mixer. Good luck! I hope this helps. Howard, Burke, VA
If this solution has been helpful to you, please rate it, thanks! -hslincoln

KitchenAid KSM90... | Answered on Jan 26, 2010 | 189 views

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