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Models > KSM90PSER0 > Instructions

KSM90PSER0 KitchenAid Mixer - Instructions

All installation instructions for KSM90PSER0 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 KSM90PSER0
46-60 of 151
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broken wire whip

  • Customer: Stanislaw from San Antonio, TX
  • Difficulty: Really Easy
  • Time to Complete: Less than 15 mins
  • Tools Required:
  • 2 of 4 people found this instruction helpful
no instructions necessary

pinion teeth sheared off the shaft

  • Customer: Ray from Roanoke, VA
  • Difficulty: Easy
  • Time to Complete: 1- 2 hours
  • Tools Required: Screw drivers
  • 1 of 1 people found this instruction helpful
Repair went well after I figured out how to dis-assemble the mixer. Used straight & phillips screwdrivers and a small hammer & punch to drive out 3 pins. Ordered part# PS734233 pinion & shaft as shown in the parts page, it arrived on schedule, received part # 240210-2. Only problem was the new pinion had 10 teeth, the old/failed pinion had 11 teeth. Could not learn from anyone I called at PartsSelect or Whirlpool if the 10 tooth pinion was the correct part to use.
The teeth appeared to mesh with the mating gear,
installed the new pinion, reassembled and it worked fine. Not sure if it made a noticable difference in the output shaft speed.

Pinion gear failed, broken tooth mixer stalled and mixers wouldn't turn.

  • Customer: Michael from Palos Park, IL
  • Difficulty: Easy
  • Time to Complete: 30 - 60 mins
  • Tools Required: Screw drivers
  • 1 of 1 people found this instruction helpful
Went to partselect, found model number, printed blow-up of mixer. Figured out disassenbly procedure. Drove out main pin removing mixer head from stand. Save pin. Drove out pin in mixer main shaft which allowed planetary head to be removed. Save pin.
Removed stainless steel bezel to expose screws for removal of bottom half of mixer body. Removed screws and carefully separated mixer halves using two screwdrivers as prybars. Care must be exercised to prevent chipping of paint on body.
Separated body. cleaned grease from gears to find actual problem. Removed broken geartooth and grease near broken part to make sure no small broken chips remained. Removed pinion shaft assembly, drove pin from gear releasing broken pinion/shaft. Save pin/
Cleaned grease from pinion shaft assembly using mineral spirits and a small brush to reveal how part could be disassembled. Ordered part immediately on-line. Part arrived 1 business day after it was ordered.
Reversed process for replacing pinion shaft. Applied fresh grease obtained from excess already in mixer, spun pinion shaft to make sure grease was properly distributed. Reinstalled pinion shaft assembly. CAREFULLY plugged in mixer and jogged motor to make sure all was free and that mixer worked. If you can repair this mixer, you should have enough sense to do this diagonistic. Keep fingers away from all moving parts, don't touch expposed electric wires. Plug in only after making sure switch is in off position. Jog using mixer switch. Make sure mechanism is free.
Complete re-assembly by following blow-up and reversing disassembly steps. It may be good to write down you disassemblly procedure if it is possible that you won't be reassembling within a day or two.

cap screw was worn out and would not hold the bowl

  • Customer: Frank from Locust Grove, VA
  • Difficulty: Really Easy
  • Time to Complete: Less than 15 mins
  • Tools Required: Screw drivers
  • 2 of 4 people found this instruction helpful
Removed three screws and lifted out old part. replaced with new part

plastic worm gear was stripped would nut turn

  • Customer: anthony from harviell, MO
  • Difficulty: A Bit Difficult
  • Time to Complete: 1- 2 hours
  • Tools Required: Screw drivers
  • 2 of 5 people found this instruction helpful
replaced worm gear and wonderd why they used plastic instead of a stronger metal gear, unit works fine

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 8 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 whip came apart

  • Customer: Beverly from St. James, MN
  • Difficulty: Really Easy
  • Time to Complete: Less than 15 mins
  • Tools Required:
  • 1 of 2 people found this instruction helpful
Really no help from Kitchen Aid sources; but phone call to PartSelect solved the problem. Kitchen Aid repair line didn't even know the part #! Thanks to Part/Select, Christmas cookies are being made.

Mixer suddenly ceased operation after sharp noise

  • Customer: Walter from Athens, GA
  • Difficulty: A Bit Difficult
  • Time to Complete: 1- 2 hours
  • Tools Required: Screw drivers
  • 2 of 5 people found this instruction helpful
To access the interior of the mixer, I first removed the single screw holding the cup-shaped part at the rear. Then I removed the 4 large screws on the under surface of the mixer head. Next I removed the bright metal ring around the planetary gear area by prying it off. I then pried the dish-shaped part off the shaft using a large-bladed screwdriver. This exposed 5 screws on the circumference of the planetary gear. By removing them, one can pull up the gears and see into the area below. I found the worm gear had fractured. By removing 3 screws at the base I extracted it for closer inspection, checking for any loose pieces. Beware of the jelly-like grease. The replacement part goes into position, and one then follows the steps in reverse.

stripped nylon drive gear

  • Customer: James from Naperville, IL
  • Difficulty: Really Easy
  • Time to Complete: 30 - 60 mins
  • Tools Required: Pliers, Screw drivers
  • 1 of 2 people found this instruction helpful
Followed the repair instructions from the manual. ...

I did notice that the replacement part had an extension on it that allowed for the gear grease to be "pulled up" onto the drive gear ( the one that broke), while the unit is running. This feature was not on the original part, but was obviously an upgrade design which was added after my particular mixer was made. I think that the extension on the bracket will help prevent the new nylon gear from binding and stripping as we use the mixer from now on.

I'm glad that PartSelect had the more modern part on hand, and not just an "overstock" from the original, inferior design.

plastic outer casing on tightening screw had broken

  • Customer: Peggy from Escondido, CA
  • Difficulty: Really Easy
  • Time to Complete: Less than 15 mins
  • Tools Required:
  • 1 of 2 people found this instruction helpful
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!

worn gear

  • Customer: Robert from Auburn, ME
  • Difficulty: Easy
  • Time to Complete: 15 - 30 mins
  • Tools Required: Screw drivers
  • 2 of 5 people found this instruction helpful
dissassembled mixer and replaced gear

wire whip got bent and had to be replaced

  • Customer: Robert from Lynchburg, VA
  • Difficulty: Really Easy
  • Time to Complete: Less than 15 mins
  • Tools Required:
  • 1 of 2 people found this instruction helpful
just inserted the new wire whip

mixer would not turn

  • Customer: James from Wewahitchka, FL
  • Difficulty: Really Easy
  • Time to Complete: 30 - 60 mins
  • Tools Required: Screw drivers
  • 2 of 5 people found this instruction helpful
removed the screws holding the mixer housing and then removed the worn worm gear by removing the roll pin holding it on the shaft. Replaced the worm gear and inserted the pin that hole it in place. Replaced some of the gear grease and reassembled mixer. Went very easily. No problems at all.

Damaged the worm gear in our 300w mixer.

  • Customer: H. from Hollister, CA
  • Difficulty: Really Easy
  • Time to Complete: 15 - 30 mins
  • Tools Required: Screw drivers
  • 1 of 2 people found this instruction helpful
After stalling the mixer while mixing dough I found that the motor still functioned but the blade didn't move. I basically took the mixer into my shop along with a digital camera to record any complicated disassembly procedure I might have to deal with for reassembly and proceeded to disassemble the mixer. Once apart, I cleaned the mixer parts, removed the broken worm gear and bracket, and got online for someone that carried the replacement piece. PartSelect sent the replacement within 3 days and now it works great again.

Broken whip, no local availability

  • Customer: Carl from Austin, TX
  • Difficulty: Really Easy
  • Time to Complete: Less than 15 mins
  • Tools Required:
  • 1 of 3 people found this instruction helpful
No nstallation required, simply attach.
Your website was the only one that made sense. I am blind and follow the instructions with a screen reader. I had no difficulty. It was much easier than this questionaire.
All Instructions for the KSM90PSER0
46-60 of 151