KSM90 KitchenAid Mixer - Instructions

no instructions necessary

Pulled off end cover. Used the how-to video's to show me how to remove the (3) components (watch out when it comes to removing the spring). Removed all (3) components (one issue was the black cardboard seal, which because of its age broke. Hindsight tells me that I should have purchased a replacement seal along with the (3) new parts.
Fixed the broken part of the seal with scotch tape). Installed all new parts with the help of the video's and put the cover back on. Even with the new parts, the mixer would not run. Come to find out, after I took it to an appliance repair person, that someone had pulled both brushes and put them back in improperly. I could not find a how-to video that showed me how to de-install/re-install the brushes properly. I assume that was because new brushes were no longer available for purchase. At any rate, when the brushes were put in properly, everything worked. The repair person also adjusted the (2) screws on the speed control plate so that when you change the speeds via the lever, it all works properly. I didn't find a how-to video covering those adjustments either.

Punched out the roll pin to remove eccentric from spindle, undid 5 screws (after removing trim ring), and removed 4 screws to undo the motor housing. Make sure to keep the one screw with a lock washer in the BACK of the housing. Undid the screw on top to remove the back of the motor housing to take out the strain relief grommet, prior to removing the motor housing. Scraped the excess grease into a tub to re-use. Pulled out the shaft, and lifted out the old (stripped) gear and plopped the new one in. Make sure to mark match points for parts, and put the pins back in in the right order. You have to put the 5 screws back in before sliding the trim ring on, and putting the roll pin back. make sure all gears mesh and test before snugging the motor housing screws. Be sure to orient the strain relief grommet securely, and be careful of the filter plates in the back of the housing (they're brittle). putting the grease back is like frosting a cake. Save a little for the planetary ass'y.

Followed the video on your website and it was super simple!

Place Pin in hole where it was missing then gently tap pin into place
Run a test and all is good ??
make sure to use a drift pin set
Tom

This is the tightening screw that holds the attachments into the motor unit of the mixer. Found your web site and reordered 2 replacement pieces (in case one breaks!). Very EZ and user friendly. Thank you!

We disassembled it with the help of a YouTube video from partselect.
We saw the damaged gear, removed the 4 screws to remove it, cleaned all the old grease out with rags so it wouldn't be contaminated by metal shavings.
We reassembled it per the YouTube video and it works better than ever!!
Make sure you remove the roll pin before trying to pry off the planetary plate, because I watched a different video first, which didnt tell me that and i bent it a bit.

Got the right parts, very quick delivery, will use again.

I removed the pin from the outside shaft,then removed all screw around the body of the mixer,then removed the top case out,took 3 screws out from the the gear assembly case......punched the pin out of worm gear then release the little shaft out from the case,replaced a new one....then starting go backward till completely all assembled don't forget lube grease to all gears and test run good very smooth.........it's ok

Repairing/replacing worm-gear (FSP part# W10112253) for a KitchenAid Stand Mixer model number K5SS. First: I am writing this story because all the videos or repair articles I’ve viewed are either misleading or incorrect in that they do not include older K5SS models. 1. These older models from the mid 1960’s or even earlier have four very large #4 chrome plated Phillips Head Screws holding the mixer base to the motor assembly and NOT four small machine screws (one with a lock-washer) as seen on other repair videos. In addition, the stand is composed of two separate pieces with the bottom half being held together with another four identical #4 chrome plated Phillips Head Screws. The upper four holding the stand to the motor housing (I used a manual impact driver to loosen the very stubborn, #4 Phillips screws) must be removed so as to access the four smaller Phillips machine screws (no lock-washers found here, best buy at least four #10, split, before reassembly) 2. Lastly, you will need two pin punches however the recommended smaller 3/32 inch is still too large to remove the pin in the tower assembly. You will need one size smaller or a #4 pin punch instead. These older Kitchen Aid mixers were built with very tight tolerances. Please be patient and take your time removing the pins. Good Luck……. Jim

I did some research and evaluated a modern day Kitchen Aid Mixer. Looked a the wire diagram and found out what items I needed. Ordered them from Partselect. Overall Mixer is updated and running. I made up some cookie dough with it. The Project took a few evenings due to rewiring the coils on the motor/armature and modifying the rear bearing bracket to hold the Phase control board (not OEM on 70's mixers). Then put it back together and adjusted the speed control.

I removed three screws, pulled off the old base plate.
Put new base plate in place and replaced the screws

The repair was easy only requiring a phillips head screw driver to remove the old screw cap. The new screw cap fit snuggly and required a little downward pressure from my hand to seat it. Then I simply tightened the screws. Good as new for this 30+ year old mixer. My wife loves this mixer that was given to her by her Aunt. Glad we could keep it going.

Unscrewed old Screw Cap, tapped it out with hammer. Replaced with new screw cap that was slightly different and tight. Tapped it in with piece of wood over it and hammered it on. No problems.

I removed one screw on back, once inside mixer I removed the ground screw then pulled off the black and white push on caps, then I reversed everything to get it installed, very easy