KSM90PSBU KitchenAid Mixer - Instructions

Took the mixer down to the gear box. Found the plastic drive gear had a few stripped teeth. Did a search on the internet for the mixer gear. Found a couple of suppliers. Ordered the needed gear, pin and a bearing block just in case it was worn. The bearing block did not need to be replaced. Cleaned the broken off teeth from the gear grease and put the mixer back together. All worked fine when I plugged it in.

I found a video on how to repair mixer that would not turn. Watched video several times and replaced worn worm gear. Getting the old worm gear was the most difficult part of the job. I had to go purchase a pin punch ($5.50) with the correct tool is was easy.

Change brush's

Unscrew and dismounted the mixer, gather all pieces and screws, cleaned and washed every part, took away the old grease and replaced it with a new one, also looked carefully for the lost teeth and found them, Put grease in every part, put back and screwed all the pieces of the mixer, then tried the mixer which worked really well.

Easy removal of old screw cap, but new one didn't just drop in. Had to scrape paint and a little aluminum to make it fit. Finally did, and it works fine now.

Wish that I had known about the video before disassembling. I did not know if it needed a part or was just jammed. It was clear that i needed a worm gear. So I ordered that. It turned out that I needed the Pinion Shaft w/ gear too. So another order. The shipping far exceeded the cost of the parts. NOTE: Clear off as much grease as necessary to be certain that there are no stripped gears anywhere, the order the parts. I took the mixer head off of the stand. I would suggest that you take a bath towel, roll each end towards the center, and place the mixed head so that it is supported on both sides by the towel rolls. NOTE2: Shipping was great 2 days or less. One part arrived on a Saturday. P>S> I do not know the age of this mixer. The age drop down menu should have an UNKNOW option.

Remove 1Philips screw on cover in back of mixer. Take old cord off. The replacement cord comes with spade terminals. Take note when you pull off terminals where black & white go. The ground terminal(green) take screw out and replace.

Per a video on this site, I removed the stand part, then removed the rear electrical cover and aluminum band which wraps around the mixer. Next, remove the drip ring and planetary gear (use a punch). Then remove the 4 screws securing the bottom housing and the 5 screws around the planetary gear housing. You should be able to pull the upper and bottom housings apart now. This exposes the control lever. Just unscrew it and replace it. Re-install all parts in reverse order.

I just put in the new brushes

It was actually not a repair problem; just a replacement of a part. I ordered it one day and the next day the part was here. I have never had such a quick turn around in anything I have ordered. Thank you!!!!

I followed the video that was with the worm gear pausing at each step until I completed each step. The only different I did was to replace the grease in the gears and housing of my mixer. I figured with the gear busted, it was going to leave broken teeth in the grease. As I removed the grease I did find a couple of worm gear teeth. Thanks, Parts Select for the parts and video. You save me lots of $$$$.

Replacing the base retaining bracket(what KitchenAid calls the screw cap) solved the problem immediately. The entire replacement effort took no more than a minute requiring removing 3 screws, discarding the old base, putting in the new one, and putting the screws back in. PartSelect was very easy to do business with. They shipped the part the day I ordered it and it arrived as scheduled. Can't be easier than that.

The knob was attached to the new lever. I began to disassemble the mixer case so that I could replace the lever. However, it soon became apparent that this would be a major project involving many components and potential problems in getting the unit back together. Since all I wanted was to replace the knob, I simply knocked it off the new lever and forced it onto the old one. It is hard for me to understand why Kitchenaid would not make just the knob available.

i followed the instructions in video. Thank you joe

replace wisk order process very efficient and delivery prompt.