Top 20 KitchenAid KSM90 Ultra Power Series Stand Mixer - Page 7 Questions & Answers


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... | 129 views | 0 helpful votes


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... | 126 views | 0 helpful votes


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... | 288 views | 2 helpful votes


See pg. 13 of the owners manual for bowl height adjustment procedure:

http://shared.whirlpoolcorp.com/assets/pdfs/literature/Use%20and%20Care%20Guide%20-%209707917.pdf

clockwise to lower the head and counterclockwise to raise the head for more clearance for the beaters.

KitchenAid KSM90... | 113 views | 0 helpful votes


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... | 154 views | 0 helpful votes


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... | 199 views | 2 helpful votes


Hi JNJ2SOME. I believe the silver metal ring you are referring to is your mixers “Planetary Drip Ring”. Is it about 5” in diameter? The drip ring is a friction fitted piece that should stay on during normal use. It should be on tightly enough that to remove it by gently tapping the edge of the ring with a straight screwdriver at several places around the ring.
If the drip ring is falling on it’s own, than you might try the reverse on trying to remove the ring and tap the bottom of the drip ring gently with a few taps of a hammer (use a piece of wood between the hammer face and the ring to protect the ring) around the ring to see it that seats it any better. If it still comes off, then the ring opening has been expanded to the point that it won’t ‘grip’ the mixer head where it’s attached. You can either attempt to ‘crimp’ it with a pair of pliers at a few points around the ring so that it may grip better, or you may want to order a replacement drip ring for your mixer.
The inspection and troubleshooting of the inside of your mixer is a DITY capability, particularly if your mixer is out of warranty, which it is. Just be sure to have the Parts List manual on hand. If you're lacking one, you can download a PDF version from the KA website: 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 KSM90P, and select one of the files listed under Parts List (check to see it this matches your mixer model).
Turn to pages 4 & 5, titled “Case, Gearing and Planetary Unit”, which provides and exploded view for the disassembly and reassembly of your mixer, along with all the parts. Locate Illus. Nos. 26, Planetary Drip Ring, which is the part you want to order.
Here are five potential vendors in no particular order: RepairClinic.com; mendingshed.com; searspartsdirect.com; partstore.com; and Grainger.com. Prices can vary widely between vendors, so do your comparison shopping.
Also, 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 KA 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, repair, and reassemble your mixer.
Finally, if you feel this is beyond your capabilities and will be too difficult to do by yourself you can take your mixer to a local small appliance repair shop and have them troubleshoot and fix your mixer. KA Customer Care can provide you with the name and phone # of the closest authorized KA repair shop in your area or you can do a Online web search, but be sure to get at least three estimates before deciding to commit to one repair shop.
Good luck. I hope this helps. Howard, Burke, VA
If this solution has helped you, please rate it, thanks! – hslincoln

KitchenAid KSM90... | 2,238 views | 1 helpful votes


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... | 101 views | 0 helpful votes


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... | 159 views | 0 helpful votes


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... | 689 views | 2 helpful votes


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... | 390 views | 7 helpful votes


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

KitchenAid KSM90... | 187 views | 0 helpful votes


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... | 346 views | 3 helpful votes


Hi ILLOWA, Happy Newy Year! I believe the metal ring you are referring to is your mixer’s “Planetary Drip Ring”. The drip ring is a compression/friction fitted piece that should stay on during normal use. It should be on tightly enough that to remove it by gently tapping the edge of the ring with a straight screwdriver at several places around the ring.
If the drip ring is falling on its own, than you might try the reverse on trying to remove the ring and tap the bottom of the drip ring gently with a few taps of a soft faced mallet or hammer (use a piece of wood between the hammer face and the ring to protect the ring) around the ring to see it that seats it any better.
The ring may only fit tightly on the mixer in one orientation. Mark the outside of the ring with a small piece of tape so you can keep track of the orientations you have tried. As you attempt to seat the drip ring, if it will not stay on, then rotate the drip ring clockwise, just a bit, and repeat the process. Ideally you should find one position where the drip ring will fit securely and stay in place. Give the drip ring one final squeeze for good measure. Keep an eye on the drip ring the first few times you use the mixer to make sure it is not working loose again.
If it still comes off, then the ring opening has been expanded to the point that it won’t ‘grip’ the mixer head where it’s attached. You can either attempt to ‘crimp’ it with a pair of pliers at a few points around the ring so that it may grip better, or you may want to order a replacement drip ring for your mixer for which you’ll need the Parts List manual. If you're lacking one, you can download a PDF version from the KA website: 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 KSM90P, and select the file KSM90PSWH0.pdf (354.08 KB) listed under Parts List (16) (check to see that it matches your mixer model).
Turn to pages 4 & 5, titled “Case, Gearing and Planetary Unit”, which provides and exploded view for the disassembly and reassembly of your mixer, along with all the parts. Locate Illus. Nos. 26, Planetary Drip Ring, which is the part you want to order.
Here are five potential vendors in no particular order: RepairClinic.com; mendingshed.com; searspartsdirect.com; partstore.com; and Grainger.com. Prices can vary widely between vendors, so do your comparison shopping.
Also, 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 KA 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, repair, and reassemble your mixer.
Good luck. I hope this helps. Howard, Burke, VA
If this solution has helped you, please rate it, thanks! – hslincoln

KitchenAid KSM90... | 505 views | 2 helpful votes


I would contact kitchenAid. They have not changed their products much in decades and stand behind all their products.1-800-461-5681

http://www.kitchenaid.ca/flash.cmd?/#/en/page/home

KitchenAid KSM90... | 944 views | 0 helpful votes


Hi MPCMC, Merry Christmas & Happy New Year! By the symptoms you describe, you may have had some internal movement of the gears when the mixer was dropped. You can be pretty sure that any fall hard enough to dent the mixer’s head will also jostle the internal components and possibly ‘redistribute’ the lubrication grease. I also don’t believe KA mixers were meant to be inverted; it’s just not the way they were meant to be used. J
It’s also possible that one (or more) of the gears could be failing, but the intermittent/inconsistent grinding would lead me to think it’s more of a gear alignment issue than a gear failure (if a gear were going bad, you’d get the grinding noise at all speed levels not just the first two speeds) so…the only way to truly find out what’s happening inside your mixer is to take it apart. The good news is that you can troubleshoot the mixer yourself quite easily (OK, maybe a little effort) if you are a DITY type person, feel adventurous, and your mixer is not under warranty.
(Allow me to digress just a bit. Your Prof 6 Qt mixer is noisier because KA constructed this transmission with all metal gears. Earlier KA models had a nylon ‘fail-safe’ gear designed to strip when the mixer was overloaded so the mixer would go up in smoke.)
Before you start to take apart your mixer, you want to have the Parts List manual on hand. If you're lacking one, you can download a PDF version from the KA website: 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 KSM90P (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 4 & 5, titled: “Case, Gearing And Planetary Unit” for the disassembly and reassembly of your mixer, along with all the parts. Locate Illus. No. 36, Worm Gear Bracket & Gear, including Illus. No. 7, Worm Gear, and Illus. No. 13, Attachment Hub Bevel Gear. I would focus my attention on these components that may be causing the problems. After clearing all the grease away, you’ll probably find that a gear is out of alignment or been damaged.
You can order a replacement gear and install it yourself. While you’ve got your mixer this far apart you can check for any other unseemly wear and tear on the on the gears and other components. Besides a replacement gear, and grease you might consider replacing the gasket, and “O”-ring too (If you’ve noticed oil leaking). You should use a food-grade grease that you can order online (although I’ve seen automotive bearing grease used too – your call). Do not try to reuse any original grease as this may be filled with debris from a damaged gear.
Here are five potential vendors in no particular order: RepairClinic.com; mendingshed.com; searspartsdirect.com; partstore.com; and Grainger.com. You should search for ‘food grade grease’. Prices can vary widely between vendors, so do your comparison shopping.
It can be messy but quite gratifying to diagnose and repair your mixer yourself.
Finally, 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, should you decide to go that route.
If you feel this repair is beyond your capability, then I would seek out a local small appliance repair shop in your area. KA Customer Care can give you names of local KA authorized repair shops in your area, but you can also do an online search to supplement what KA may provide you. Call to explain your circumstances and find out their hourly rate and get an estimate of what they think it would cost to repair your mixer. Also, always obtain three or more estimates – do some comparison shopping. I hope this helps. Howard, Burke, VA
If this solution was helpful, please rate it, thanks! – hslincoln

KitchenAid KSM90... | 385 views | 2 helpful votes


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... | 172 views | 1 helpful votes


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... | 145 views | 0 helpful votes


It sounds like the pin that holds the head on is not in the correct place. IT should not stick out on either side, if it is, knock it back so it is flush with the sides. Turn the mixer over and tighten the screw that holds the pin in place.

The second problem is that the head is too low. This can happen over time. There is a screw that can be accessed when you lift the head up. It is in the middle of the hinge. Adjusting this will lower and raise the head position when the head is lowered back into place.

KitchenAid KSM90... | 149 views | 0 helpful votes


Hi,

It sounds like the Planetary Gear assy. has gear lubricant leaking into it from the gear case above it. This may not be that unusual so there may be 2 possibilities or a combination of both. The Gear Case is directly above the Planetary Gear assy. It is filled (sort of) with a food grade (assuming...I hope) grease that is necessary to keep things lubed. There are fiber washers and possibly an o-ring in the shaft assembly which should keep the grease from migrating toward your food. The Planetary Gear assy. is the part that rotates around on the business end of the mixer. It has a bronze bearing that is intended to run without lubrication. However it is a wear point and if worn sufficiently, could allow escape lubricant from the gear case above to drip into your mix. The Kitchen Aid Service Manual is a good source of info. You can get it as well as complete diagrams of the internal parts at:
http://www.goodmans.net/get_item_ka-4162075_kitchenaid-mixer-4162075-planetary.htm

You can also get parts and the KitchenAid Service Manual.pdf at:
http://www.mendingshed.com/kitaidparts.html

I know if it was my mixer, I'd give it a look. They're good tools and worth the effort!

Good luck.

DZII

KitchenAid KSM90... | 268 views | 0 helpful votes

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