KitchenAid KSM90 Ultra Power Series Stand Mixer - Page 5 - Answered Questions & Fixed issues

Where exactly is the oil leak coming from? Comment back to this post.

KitchenAid KSM90... | Answered on Apr 22, 2011 | 100 views

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.

KitchenAid KSM90... | Answered on Mar 27, 2011 | 141 views

your speed adjustment will have to be looked at. You can do this yourself but it is not easy, so it's easier to take it to a kitchenaid center where they can do it for you, but dont let them con you into getting a new mixer or anything until you know its broken or something is seriously wrong with it! hope this helps. Luke :)

KitchenAid KSM90... | Answered on Mar 26, 2011 | 429 views

This will happen. don't worry about it, these mixers are designed to be under load so just relax and don't worry about it. It will happen under heavy loads mainly, but sometimes heavy cake batters as well. Hope this helps, Sincerely, Luke :)

KitchenAid KSM90... | Answered on Mar 26, 2011 | 40 views

Hello, W/D here.

I feel your pain!

Here's a link to a site with parts lists and exploded diagrams. (The different diagrams are on the left side of the page. This should be enough to get you what you need. I used this same site to repair mine. I suggest that you make the diagrams full page and then print them, as they will be your "road map" to fix the mixer back to new. You can also take your own digital pictures as you work your way into the mixer so you will have a record of how things are supposed to look. I'd like to also recommend that you mark any wires and terminals that they are removed from with an indelible marker. This will make reassembly much easier also.

Best regards, --W/D--

KitchenAid KSM90... | Answered on Mar 19, 2011 | 286 views

Hi and welcome to FixYa, I am Kelly.

The service manual is here:

Parts can be found here:

Pedestal repairs can be found on page 22 of the service manual in section 5.

Thanks for choosing FixYa.

KitchenAid KSM90... | Answered on Mar 08, 2011 | 122 views

Hello Nscully,

Inorder to seperate the stand and the head you should only have to take the keeper pin out of the top end of the stand. It will require some force to get them seperated.

KitchenAid KSM90... | Answered on Mar 06, 2011 | 53 views

The motor is probably burnt out. You will need to either replace the motor or buy a new mixer.

That's why I buy $15.00 hand-helds.

I know someone that somehow fitted a hand-held mixer onto their old mixing stand. It's wworth a try when you consider shopping.

KitchenAid KSM90... | Answered on Feb 14, 2011 | 201 views

Hi PASTYJOHN, it's very easy to download both the Owners Manual and Parts List manual for your KA mixer. You can download a PDF version from the KA website at:

Click on Customer Care>Locate Manuals& Guides> then enter the visitor type "Consumer" and enter the 6 character model number, in this case KSM90P, where you can choose one of the three size files under Owners Manuals (20). Since there are three versions - 191.99 KB, 2730.37 KB or 3230.97 KB, I would download all three and save the one you feel is best for your needs. Similarly, I would also download a parts list manual, too. Since the Parts List manuals are exactly the same you can choose any one of the 16 available to download and save.

Good luck, I hope this helps. Howard, Burke, VA, USA
If this solution was helpful, please rate it, thanks! - hslincoln

KitchenAid KSM90... | Answered on Feb 13, 2011 | 1,244 views

Hi RFRICK753, There are no specific instructions to 'oil' your KA mixer. Your KA mixer's internal gears are factory packed with enough grease to last, with normal use, pretty much a lifetime. As grease will, over time, tend to break down, you may find the oil component of it seeping from openings beyond the gasket and "O"-ring down the agitator shaft. Gravity can be very insidious. But generally speaking if your mixer appears to be operating normally as it has in the past, you should not be overly concerned about 'oiling' it.

If, however, you feel it necessary to perform some TLC on your mixer, the good news is that 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 at:

Click on Customer Care>Locate Manuals& Guides> then enter the visitor type "Consumer" and enter the 6 character model number, in this case KSM90P, and select any file under Parts List (16); say KSM90PSAC0.pdf (354.08 KB) for example (all 16 manuals are exactly the same, but it's still wise to check and see if it matches your mixer, though).

Although not providing step by step instructions, the Parts List manual provides an exploded view of the various component assemblies allowing you to see how the mixer all fits together. It is helpful for the disassembly, troubleshooting, and reassembly of your mixer.

You'll find it quite messy 'under the hood' in the transmission box, but you'll be able to ascertain whether you really need to re-grease or not. Also, while your mixer's apart is an opportunity to check for any other unseemly wear and tear on the gears, etc.

After getting your hands this dirty, you may want to order a transmission gasket, an "O"-ring, along with some food-grade grease. Here are five potential vendors in no particular order:;;;; and (for grease). Prices can vary widely between vendors, so do some comparison shopping.

Here are some links to several excellent websites that detail the disassembling/greasing and reassembly of a KA Mixer. The mixers displayed in the links may be different than your KA model, 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 peek under the hood and assess any maintenance needs for your mixer.

KitchenAid KSM90... | Answered on Jan 20, 2011 | 1,154 views

I would suggest that you replace the oil, but first find out the reason for the leak. There must be a cover on a gearbox that can be removed to put oil in as I doubt that there will be and actual filler point on the machine.

KitchenAid KSM90... | Answered on Feb 08, 2011 | 145 views

it should be high temperature grease. it will only drip out if the seal has dried out or cracked.i think the seal has a spring inside it may need changing they should be cheap.and easy to change. or you could always put some flour in the bowl and run it for a few minutes to see if it dries up it may just be lack of use.

KitchenAid KSM90... | Answered on Jan 07, 2011 | 183 views

Hi and welcome to FixYa, I am Kelly.
The Head Lock is most likely worn. The 4.2 mb Service m\Manual is located here:

You may have a worn hinge pin: Figure 7 page 7 of the pdf file.
The spring for the head lock can be also broken. Item 20 this link:

See page 22, figure 72 in section 5 of the service manual for pedestal hinge repairs. Most likely the set screw for the head lock has come loose.

Your parts can be found here: (with some exceptions like item 20 above)

This information should get you going if your able to read the manual and follow the sometimes vague instructions.

Thanks for choosing FixYa,

KitchenAid KSM90... | Answered on Jan 02, 2011 | 349 views

On the tilt head models there is a "Stop screw" that adjusts how far down the head goes. I just can't remember if it's in the head or base. I use the other model that lifts the bowl.

KitchenAid KSM90... | Answered on Dec 31, 2010 | 139 views

It sounds to me like the armature cracked. I had never heard of this until a few years ago and my milwaukee 1/2 driil did the same thing you are describing. I took it to a friend whom I trust and he showed me where it had split and a small piece had split off and wedged between armature and frame. I hope this is of some help to you. Thank you.

KitchenAid KSM90... | Answered on Dec 29, 2010 | 41 views

if its under warranty take it back but sounds like the seal has been broken youll need to get a new mixer

KitchenAid KSM90... | Answered on Dec 23, 2010 | 81 views

You can try moving the lever slightly up or down while moving it forward to see if this will free it it or make a difference. Otherwise, the spring inside may have snapped or the speedlink cam may have came loose or broke. Either one will require the top end assembly to be removed to replace these parts.

KitchenAid KSM90... | Answered on Dec 22, 2010 | 126 views

I believe the brushes and the spring are one piece, so the brush should come out with the spring. Either the brushes are so worn that you just aren't noticing the little bit that's left, or the block has come loose from the spring. You can tip the machine over so the brush hole is facing down and let gravity do the work. If there's any brush left inside, it should slide out. Otherwise just install the new brushes.

KitchenAid KSM90... | Answered on Dec 14, 2010 | 338 views

If you're still having this problem, here's what I did a few minutes ago that fixed it. Lift the head, then turn the screw that connects the head to the base to the left. You're basically unscrewing it. That screw regulates how high or low the beater is. Unscrew it a little at a time, and lower the head and try to lock after each turn. The head will gradually get in a more locked position. Keep turning the screw till the head finally locks in all the way. Read the "beater to bowl clearance" section in the manual.

KitchenAid KSM90... | Answered on Dec 10, 2010 | 353 views

There could be one of two things wrong (or both). You might need a new seal or you might just need the machine to be regressed. Also, never keep your mixer stored on its side as this will automatically allow the machine to leak grease.

KitchenAid KSM90... | Answered on Nov 02, 2010 | 154 views

Not finding what you are looking for?
KitchenAid KSM90 Ultra Power Series Stand Mixer Logo

348 questions posted

Ask a Question

Usually answered in minutes!

Top KitchenAid Food Mixers Experts

Appliance engineer

Level 2 Expert

162 Answers


Level 2 Expert

66 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22484 Answers

Are you a KitchenAid Food Mixer Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides