Models > KSM90MC4 > Instructions

KSM90MC4 KitchenAid Mixer - Instructions

All installation instructions for KSM90MC4 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 KSM90MC4
76-90 of 141
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Beater was peeling and chipped; thumb screw was worn & loose to the point it would fall out

  • Customer: Carol from LIGNITE ND
  • Difficulty: Really easy
  • Time to Complete: Less than 15 mins
  • Tools Required:
  • 0 of 0 people found this instruction helpful
It only involves reinserting the beater . And the thumb-screw was falling out so I cleaned the area and replaced the thumb screw. Very simple and easily done.

original part worn out, wouldn't hold mixing bowl

  • Customer: Diane from Holland MI
  • Difficulty: Really easy
  • Time to Complete: Less than 15 mins
  • Tools Required: Screw drivers
  • 0 of 0 people found this instruction helpful
unscrewed old part, put in new part.New part much better design than old one. Works great. Your service is great. Had the part in a 2-3 days. Awesome.

Brushes go in only one way & not same each

  • Customer: john from las Vegas NV
  • Difficulty: Very Difficult
  • Time to Complete: More than 2 hours
  • Tools Required: Screw drivers
  • 0 of 0 people found this instruction helpful
Took it to repair shop

Broken worm gear

  • Customer: Dallas from Atlanta GA
  • Difficulty: A Bit Difficult
  • Time to Complete: 15 - 30 mins
  • Tools Required: Pliers, Screw drivers
  • 0 of 0 people found this instruction helpful
Knob fell out of the front of the mixer into the bowl and jammed the beater. This caused the motor to strip the plastic worm gear. Open unit to investigate and found about 4 teeth missing out of the worm gear. Ordered a replacement. Installed the new gear once received in about 30 minutes. Wife is now happy again. Just need to make sure you pack enough gease into the new gear before reassembling the unit.

mixer would not turn on

  • Customer: John from Norfolk VA
  • Difficulty: Easy
  • Time to Complete: 15 - 30 mins
  • Tools Required: Screw drivers
  • 0 of 0 people found this instruction helpful
removed one screw from back cover, loosened two screws holding speed control plate, removed one wire at a time from old unit to new, screwed two top screws back on mixer,plug mixer back in, adjust speed control screws until I reached correct speed, put back cover back on

Teeth broke off pinion gear

  • Customer: Kevin from Volant PA
  • Difficulty: Easy
  • Time to Complete: 1- 2 hours
  • Tools Required: Screw drivers
  • 0 of 0 people found this instruction helpful
I watched the video twice and made the repairs

ground off the gears

  • Customer: Tom from Bay City MI
  • Difficulty: Easy
  • Time to Complete: 30 - 60 mins
  • Tools Required: Screw drivers
  • 0 of 0 people found this instruction helpful
followed the instruction on you tube

Stripped plastic gearr

  • Customer: CONRADT from El Paso TX
  • Difficulty: Really easy
  • Time to Complete: 15 - 30 mins
  • Tools Required: Pliers, Screw drivers
  • 0 of 0 people found this instruction helpful
Opened beater , removed grease , took bearing off , removed alignment pins ,pulled shaft and pinion out , replaced parts , lubricated with new grease , assembled the whole drive . do not like the plastic gear or the clearance once assembled has a lot of slop for this type of drive .

worm gear had broken tooth and gear was loose on sprocket

  • Customer: Larry from Briggsdale CO
  • Difficulty: Easy
  • Time to Complete: 15 - 30 mins
  • Tools Required: Screw drivers
  • 0 of 0 people found this instruction helpful
I dismantled the machine to find the problem and to see what part I needed. Than when I ordered the part I saw the video of how to do it. If I had seen the video before I dismantled, I would have save a few steps. The video was very complete and accurate even it being an older model

Broken Part to KitchenAid Mixer

  • Customer: PJ from Rome GA
  • Difficulty: Really easy
  • Time to Complete: Less than 15 mins
  • Tools Required:
  • 0 of 0 people found this instruction helpful
Great experience. Reasonable cost. Quick delivery. Would certainly use PartSelect again

My wife was complaining of a loud grinding noise.

  • Customer: Nick from Naperville IL
  • Difficulty: Really easy
  • Time to Complete: 15 - 30 mins
  • Tools Required: Screw drivers
  • 0 of 0 people found this instruction helpful
I replaced the brushes. I didn't realize that I've put one of them wrong. Reminder for next time the brushes have to touch the rotor of the motor. It took me a little bit to understand but the brushes can go in and not touch the rotor. It works very quietly now. Thank you PartSelect for your infos and knowledge.

Bad Transmission

  • Customer: Norman from Norwich CT
  • Difficulty: Really easy
  • Time to Complete: 30 - 60 mins
  • Tools Required: Nutdriver, Screw drivers
  • 0 of 0 people found this instruction helpful
Task went EZ,I have two with bad transmission and with fixing them I found out the grease in case housing was bad like wax. So I'm going to check out my third mixer and replace old grease in that one. your part scrimatics are great thanks.

Stripped worm follower gear.

  • Customer: Johnna from Childress TX
  • Difficulty: Really easy
  • Time to Complete: 1- 2 hours
  • Tools Required: Screw drivers
  • 0 of 0 people found this instruction helpful
Watched the video. Ordered the parts. Watched the video again. Replaced the worm follower gear and bearings on the worm gear. Added grease. Installed new gear housing. Put it all back together and tested. Works like new. Now I get cakes and goodies again and have a happy wife who thinks I'm super handyman. Thanks

Worm gear was bad

  • Customer: Alvaro from Brighton CO
  • Difficulty: Really easy
  • Time to Complete: 15 - 30 mins
  • Tools Required: Screw drivers
  • 0 of 0 people found this instruction helpful
Order part through parts select. it only took 3 days to receive part. The mixer was very easy to take apart and to replace the gear. it was back together in about 20 min. The video from kitchen aid to repair the unit is awsome. Thanks

This mixer was found, in apparent brand-new shape, discarded at our trash transfer. It had a stripped worm gear.

  • Customer: Kathryn from Granville TN
  • Difficulty: Really easy
  • Time to Complete: 30 - 60 mins
  • Tools Required: Screw drivers
  • 0 of 0 people found this instruction helpful
I disassembled the mixer head, removed old grease and cleaned interior completely. I noticed the worm gear was broken and concluded some lazy person hadn't bothered to find out why this otherwise pristine machine didn't work. I ordered the parts from you, installed a new worm gear, repacked with food grade grease, put on the new gasket, reassembled and turned it on. TA DA!!! Since I have a 50 year old KitchenAid in fantastic condition, I gave this one to my neighbor. She cooks for about 15 people on Sundays and has never had a stand mixer until today.
All Instructions for the KSM90MC4
76-90 of 141