Models > KSM90OB4 > Instructions

KSM90OB4 KitchenAid Mixer - Instructions

All installation instructions for KSM90OB4 parts

These instructions have been submitted by other PartSelect customers and can help guide you through the mixer repair with useful information like difficulty of repair, length of repair, tools needed, and more.

All Instructions for the KSM90OB4
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my Kitchen Aid mixer had one speed - HIGH!

  • Customer: Darcy from Eyota MN
  • Difficulty: Really easy
  • Time to Complete: 15 - 30 mins
  • Tools Required:
  • 5 of 7 people found this instruction helpful
I actually didn't do the repair. I asked a friend who was a carpenter about what he thought was wrong with my mixer since it only had high speed which made mixing flour a snow storm. He said when his tools do that, it's the brushes. He ordered new ones and presto - my mixer works marvelously. He saved me from dumping a good mixer and $$$$$$$.

needed a new beater since old one was chipping and had coating flaking off.

  • Customer: Sandra from Reynoldsburg OH
  • Difficulty: Really easy
  • Time to Complete: Less than 15 mins
  • Tools Required:
  • 5 of 8 people found this instruction helpful
Looked up part replacement, ordered on line. Found part easily and waited anxiously for new part. I wanted to make cookies for the holiday season. Received part quickly, opened up packaging, put on mixer and I was back in business. Thanks so much for an easy fix. I also was pleasantly surprised at how cheap the replacement part was. Thank you, thank you for allowing me to get a new part with ease and continue to use my Kitchen Aid mixer.

The mixer got a wad of dough between the pan & beater and stopped.

  • Customer: Charles from Bowie MD
  • Difficulty: Really easy
  • Time to Complete: 30 - 60 mins
  • Tools Required: Screw drivers, Wrench(Adjustable)
  • 4 of 5 people found this instruction helpful
Once I looked at the schematic I was prtty sure what the problem was and what I needed to repair the problem. It was reltively easy to disassemble the mixer and immediately saw that I was correct in what was needed. I ordered the parts. They came through with no delay. It took almost as long to find all of the parts as it was to do the repair. In all it took about a half hour to repair, put it together and clean everything up. It works just like new.

Worm gear was missing teeth

  • Customer: Terry from Pigeon MI
  • Difficulty: Really easy
  • Time to Complete: 15 - 30 mins
  • Tools Required: Pliers, Screw drivers
  • 4 of 5 people found this instruction helpful
Took the mixer apart and cleaned the grease so off I could see the pins. Wasn't a hard fix only thing is make sure to clean the grease off so you can see what your doing

spent Pevel Pinion Center Gear

  • Customer: EUGENIO from MIAMI FL
  • Difficulty: Easy
  • Time to Complete: 15 - 30 mins
  • Tools Required: Pliers, Screw drivers
  • 4 of 5 people found this instruction helpful
remove the back cover part # 36, remove the top cover part # 1 (by removing the chrome ring parate # 28, the mobile disk part # 25 and six screws part # 24). This done, remove the system parat # 38 to release the Pevel Pinion Center Gear part # 15 and remove the damaged part and put the new part. The install the removed parts in reverse order as they withdrew.

The mixer started getting weak like a gear was stripped and then quite working all together.

  • Customer: Lane from Warrior AL
  • Difficulty: Easy
  • Time to Complete: 30 - 60 mins
  • Tools Required: Nutdriver
  • 3 of 3 people found this instruction helpful
I removed the decorative band that covers the seam by removing 1 screw. I then removed the top portion of mixer by removing 4 square head screws. You will then see the gear housing in the front of the mixer. Remove the 4 screws holding that on. There are no spring that are going to pop out and you never know where they went, but be careful because there is a lot of grease and a gear that it just laying in there on the right side. You will see the stainless shaft with a couple on gear cogs on it. Remove the retaing spring from the shaft and pull the top gear off, it may be a little snug. You will then see the dowel pin, mine was sheared off but I could see where it was. Be sure to remove the broken pieces. Use the punch to knock out the remaining pin. Replace with new pin making sure it is evenly exposed on both side of the shaft. Replace the top gear, then the retaining spring, the the gear housing cover, then the mixer top cover and finally the decorative band. Be sure to unplug before you start. These mixers are expensive and expensive to have someone fix them. I ordered 2 pins because shipping is a little high and the pin is cheap. I fixed this for $17.00 total and have a spare pin.

wire broke

  • Customer: Carol from Rochester NY
  • Difficulty: Really easy
  • Time to Complete: Less than 15 mins
  • Tools Required:
  • 3 of 3 people found this instruction helpful
total replacement
works beautifully

broken worm gear

  • Customer: robert from sun valley CA
  • Difficulty: Easy
  • Time to Complete: 30 - 60 mins
  • Tools Required: Nutdriver, Pliers, Screw drivers
  • 5 of 10 people found this instruction helpful
just took the unit apart and replaced the worn gear and bracket . Then took the old worn gear and bracket apart and replaced the worn gear . Then put the assy back together and now I have a spare

The 5 feet on my Kitchen Aide, had worn out

  • Customer: Beverly from Post Falls ID
  • Difficulty: Easy
  • Time to Complete: Less than 15 mins
  • Tools Required: Screw drivers
  • 3 of 4 people found this instruction helpful
Took the old feet (5) off and put new on the Kitchen Aide, looks great. Stands high and your assistance on the phone, was so appreciated.

The coating was chipping off of the original Flat Beater

  • Customer: Pat from Marshfield WI
  • Difficulty: Really easy
  • Time to Complete: Less than 15 mins
  • Tools Required:
  • 3 of 5 people found this instruction helpful
All I had to do was insert the new beater. Wonderful timing, was just going to start some holiday baking. will definetly use your website again. Thank you.

beater was worn out

  • Customer: Juanita from Ferndale CA
  • Difficulty: Really easy
  • Time to Complete: Less than 15 mins
  • Tools Required:
  • 3 of 5 people found this instruction helpful
Insert and off you go. No real installation.

very simple could not been a easer job thank for partsSelect.

  • Customer: terry from eudora AR
  • Difficulty: Really easy
  • Time to Complete: Less than 15 mins
  • Tools Required:
  • 5 of 11 people found this instruction helpful
all that were required, were you take off old beater an replace new.simple push up old part an replace new. as you do after usage of the machine.

Stripped gear when I tried to make Pizza Dough

  • Customer: Patrick from Cupertino CA
  • Difficulty: Easy
  • Time to Complete: 30 - 60 mins
  • Tools Required: Screw drivers
  • 2 of 3 people found this instruction helpful
Very messy as there is lots of heavy grease inside the mixer and you have to fish out the blown gear parts. I vary glad I took shop class in High school as it preped me for the job. The machanical drawing you provide were very useful but you should mention the grease.

Mixer works just like new. and I got the parts in two days with standard shipping. Pizza on Thursday and fixed by Saturday

Moter would run, but nothing would turn

  • Customer: Curtis from Green River WY
  • Difficulty: Really easy
  • Time to Complete: 15 - 30 mins
  • Tools Required: Screw drivers
  • 2 of 3 people found this instruction helpful
first removed the dress ring by tapping it very gently.then drive the pin out that holds the beater plate on, now wiggle it off, then you can see the screws that hold the gear reducer on. remove them. take that off and you will see the housing that hold the worm gear. remove the 3 screws that hold it down . Now you will have to drive the drift pin out that holds the worm gear in place, slide the shaft out then remove gear. reverse order to assemble

Base plate destored

  • Customer: Gordon from West Stockbridge MA
  • Difficulty: Really easy
  • Time to Complete: Less than 15 mins
  • Tools Required: Screw drivers
  • 2 of 3 people found this instruction helpful
I removed three screws, pulled off the old base plate.
Put new base plate in place and replaced the screws
All Instructions for the KSM90OB4
16-30 of 133