Question about KitchenAid KSM90 Ultra Power Series Stand Mixer

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My Ultra Series Mixer has started to make a noise so my husband opened it to inspect if there was enough grease and if the gears were worn. There was plenty of grease and the gears were fine. Now that it's back together, the noise continues unless the back cover is removed. It runs without grinding if the back cover is off. Also, when the back cover is on and screwed into place, the mixer runs slow in all settings and really bogs down in the slowest setting. What can be the issue with the back cover?

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The back cover is the housing that protects the speed adjustment! i THINK that this is the reason your mixer is going so slowly but im not sure, you will have to get it checked out by a kitchenaid repair centre seeing as the same thing happened to mine, they told me it was the speed adjustment.

Posted on Mar 27, 2011

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Hi, I have a Kitchenaid stand up mixer custom edition 500 watt model #Kd2661xmc that sounds fine when I don't have anything in it, but sounds like its crying when I put just a single cake mix in it. ...


Get A Copy of the Repair Parts List for your model at Kitchenaid.com.
Remove the Gearcase Motor Housing (1) & the Transmission Housing (7)
Remove the 2 screws (23) holding down the Motor (2) and lift off way from
the Worm Gear (17). Test run the motor by itself at different speeds.
If it runs fine then it's time to inspect all the gears in the Transmission
Housing(7). Remove all the brown Grease covering the gears.
Pay attention in particular to the teeth of the Worm Follower Gear (19).
(the Bevel Gear (21) sits on top of this gear)
They should not be worn out or chipped. If they are then this is the source
of the noises you're hearing (the Worm Gear is grinding away the teeth of
the Worm Follower Gear). Once the Follower is replaced, your mixer will
be just as new again.
Please Note that this replacement is not an easy task. You need the right
tools and don't use a hard object like a steel screwdriver to pry out the
Planetary plate (15) from the beater shaft. Before re-assembly, use only
fresh new Food Grade Grease from Kitchenaid (the old grease may contain
metal filings from the worn out gear that will damage your new one)

Jul 22, 2011 | KitchenAid KSM150PS Artisan Series Stand...

1 Answer

On low it makes a really loud grinding noise the higher you turn up the speed the slower it becomes.


It sounds like the Worm Gear is going out. The faster the motor runs,
the more damages the Center Gear is grinding away the teeth of the
Worm Gear. Things start to slow down, and eventually they will come
to a halt. It's time to replace the Worm Gear. Also make sure to use
new fresh Kitchenaid Food Grade Grease with the new replacement.

Jun 19, 2011 | KitchenAid KSM90 Ultra Power Series Stand...

1 Answer

Makes noise when on but the blender doesn't turn.


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.

Apr 11, 2010 | KitchenAid KSM90 Ultra Power Series Stand...

1 Answer

KitchenAid food processor makes a grinding/clunking noise while running. (Not supposed to be there.) Sounds like gears not aligned.


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.

Apr 06, 2010 | KitchenAid KSM90 Ultra Power Series Stand...

1 Answer

I have a KSM90 that is about 8 years old. It started leaking oil and the top of the mixer goes down into the bowl too far and it 'drags' the attachment along the bottom of the bowl and makes a generally...


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

Jan 02, 2010 | KitchenAid KSM90 Ultra Power Series Stand...

1 Answer

Need to add oil what type & where to add


Hi AQUA_1WELL, you want grease not oil.
Your KA mixer came supplied with a ‘lifetime’ supply of grease for lubricating your mixers transmission gears. However, over time that grease breaks down and it should be replaced as part of a regular maintenance regimen 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. 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. This gearing is what you want to re-grease; as you disassemble the mixer head, you’ll see where what gears need grease and how much is used.
Ideally you want to replace the grease in your mixer with a ‘food grade’ grease (although I’ve see people use automotive bearing grease, too – your call.) Unfortunately you can’t just buy a ‘little’ grease, so the best option is to purchase a ‘cartridge’ and you’ll have enough to last you a lifetime of KA mixers. Try this link: http://www.grainger.com/Grainger/greases/ecatalog/N-9iv/Ntt-food+grade+grease?op=search&sst=All to get an idea of the grease available. You don’t necessarily need to purchase from Grainger, but when I fixed my wife’s mixer and needed to replace the grease in her mixer, the grease came from Grainger.
Here are five potential online 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.
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. The mixers displayed in the links are different KA models, but the principles are the same.
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 and have fun. I hope this helps. Howard, Burke, VA
If this solution was helpful, please rate it, thanks! – hslincoln

Dec 22, 2009 | KitchenAid KSM90 Ultra Power Series Stand...

1 Answer

Mixer infected by foul demons makes bad noises


Hi, JSTEWART431, are you sure it’s the motor or could it be the transmission gears where the noise is coming from? Are you sure it's the motor or could it be the transmission?
It 'sounds' like you've got some transmission gear issues. It could be as simple as through normal use the gears have shifted slightly in the transmission and the gear teeth are making different contact, hence the grinding noise. The higher the speed, the louder, higher pitched sound you'll get. Alas, the noise may also be indicative of a potential gear failure, similar to my wife’s mixer where the mixer’s increasing noisiness finally ended with a broken tooth on the bevel gear and the mixer 'froze'.
If you are DITY type person, feel adventurous, and your mixer is not under warranty you can troubleshoot it yourself. Be sure you 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 the first file 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. I suspect this is the weak link in your mixer’s transmission and causing the problems. After clearing all the grease away, check to see if the gear is just loose, exceedingly worn or broken. If it’s worn or broken you can order a replacement part 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, too. You should use a food-grade grease that you can order online (although I’ve seen automotive bearing grease used too – your call).
The next possibility to check would be with the motor itself, but electric motors are pretty simple mechanisms and generally don't fail. Using the parts list, you can see what needs to be inspected and determine if any motor parts need replacement. (Generally only brushes wear out, but I don’t think that would cause your grinding sound.)
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’s a link to an excellent site for disassembling/fixing your KA Mixer: http://www.neilcrockett.com/mixer.htm and another link to a site that details the disassembly and replacement of mixer’s grease, which might be helpful, too. http://www.foodonthefood.com/food_on_the_food/2009/04/how-to-repair-a-kitchenaid-mixer-yourself.html
If you feel troubleshooting and repairing 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.
Good luck. I hope this helps. Howard, Burke, VA
If this solution has helped you, please rate it, thanks! - hslincoln

Dec 05, 2009 | KitchenAid KSM90 Ultra Power Series Stand...

1 Answer

Whining noise in plenetary gear


Hi. Lubrication of the planetary is essential for your mixer. If you're still under warranty (1 year) call Kitchenaid for a replacement mixer but don't tell them that you disassembled anything.

If out of warranty, locate Chevron FM ALC EP-2 food grade grease for your mixer AND the planetary.
If you haven't already done so, go to kitchenaid.com, click on customer care, then click on manuals search. Enter your full model # in the search window and locate the parts list for you mixer. Download it, it will assist you with your servicing and will have all the part numbers for your mixer. If you need a new trans housing insist that it be METAL!

I would also remove the transmission cover, inspect it for cracks if it's one of the cheap plastic housings. If you find cracks, you have more problems with potential internal damage caused by these cracks as this housing supports two important gears and shafts. When it fails these gears skip and cause damage to the gear cogs and bearings. Kitchenaid's replacement housing is made of metal. Hopefully all you need is the planetary greased.

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

May 02, 2009 | Food Mixers

1 Answer

Model KSM90 10 speed ultra power stand mixer leaking oil at the shaft where mixer tools attach. Is there a repair kit which includes a oil seal or something like that at a reasonable price?


Hi. Your mixer needs to be serviced, have old grease and oil removed, parts cleaned, then re assembled with new grease. Remove the tapered-pin from the planetary gear, remove planetary gear, clean lubricate and re install. Chevron FM ALC EP-2 is a "Food Grade" lubricant, meaning that it's safe for human consumption if it accidentally gets into food. There are no seals, only bushings. The existing bushings will hold back the new grease. The oil has separated from the base of the grease. If you don't use your mixer very often, start it up about once a week to keep the grease properly mixed.

If you'd like more info on your mixer goto kitchenaid.com, look up your model # download the PARTS drawings. Use these drawings to re-assemble and to determine if you need any replacement parts. Be prepared to wait at least a month for your parts to arrive.

If this Solution assisted you, please rate it. ricardok45

Mar 06, 2009 | KitchenAid KSM90 Ultra Power Series Stand...

3 Answers

Hobart A200 noise


Your mixer was built in 1942 and from the sound of it, it's been without grease for some time. Before you dismantle it, try adding new grease to it. This is the less expensive and less time consuming approach. The grease product to look for is Shell Darina XL EP-2, Try to find a local Shell Distributor and see if they'll sell you about 4 tubes of 400 grams each. This grease is compatible with most other greases, so you won't have to remove the old grease before you add the new stuff.

Remove the four screws that attach the Hub to the body of the mixer, pull off the hub. You now have access to the transmission area. work the new grease into the cavity, try to get as much grease as you can toward the back of the compartment. This will be a very messy job unless you have, or acquire a grease gun that the tubes will fit in. Lay the mixer on it's back and let gravity help you to get a lot of grease down through the hub opening. Keep adding grease until you've greased up to the hub opening. Grease the hub gear and then re-install the hub. Raise the mixer to vertical and start up the mixer, letting it run for a couple of minutes. Stop the mixer and shift gears,, once again start the mixer and repeat this procedure for the last gear. Listen for the sounds it was making before, they should be silent or at least muted. If it's still making loud noises, You may well have to take it apart for an overhaul. Dont overlook the planetary gearing, this gearing is not bathed in grease like the trans. Remove the planetery assembly, clean and inspect the planetary gear and the large ring gear in the mixer body. Regrease both and re-assemble. Your mixer is now as quiet as it will get short of a complete overhaul. If this solution works, it has only cost you a few bucks and a bit of time, making this. solution a good one, unless you still have the major noise issues.

I f you've found this solution helpfull, please rate it and Good Luck! ricardok45

Nov 26, 2008 | Hobart A200 Stand Mixer

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