Models > 4KSM90PSCP0 > Instructions

4KSM90PSCP0 KitchenAid Mixer - Instructions

All installation instructions for 4KSM90PSCP0 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 4KSM90PSCP0
1-15 of 147
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Speed Control Lever KNOB BROKEN

  • Customer: Robert from Minot ND
  • Difficulty: Easy
  • Time to Complete: Less than 15 mins
  • Tools Required: Pliers
  • 38 of 55 people found this instruction helpful
Pulled the Knob off of the new Lever then pressed it on the old Lever. I had to order the whole lever because it was the part nearest the knob in the illustrated parts break-down. I RECOMMEND THAT THE KNOB BE ADDED TO THE ILLUSTRATED PARTS BREAK-DOWN.

motor would run but mixer wouldn't operate: broken worm gear

  • Customer: Raymond from Shirley MA
  • Difficulty: Easy
  • Time to Complete: 30 - 60 mins
  • Tools Required: Screw drivers
  • 29 of 31 people found this instruction helpful
My girlfriends' stand mixer failed when the accessory drive cap fell into the mixing bowl and jambed the beater, spliting the worm gear. The teeth on this gear are made of nylon and are molded to an aluminum center. This part is designed to fail in situations like this, saving the more expensive transmission parts. Following a repair manual I found online, I first removed the rear cover and pulled out the cord strain relief out from the base. Next I removed the drip cup from around the base of the planetary drive. I then used a pin punch to drive out the pin holding the planetary to the center shaft and removed the planetary. The unit was then inverted and I removed 4 screws holding the bottom cover to the gear case, and the 5 screws from around the planetary drive. The bottom cover was then lifted off. Three screws holding the worm gear bracket in place were then removed and the worm gear assembly lifted out. A small pin holds the worm gear to the shaft. I drove this out with a small pin punch and the shaft and worm gear were then removed. There is also a thrust washer on this shaft, and it's location is important. Make a note for re-assembly. The new gear was installed and the entire process reversed for re-assembly. A successful repair completed! My girlfriend would have replaced this $200 appliance, but I was able to repair it for less than $30 including shipping.

Mixer was making clunking sounds and shaking

  • Customer: Robert from Minden NV
  • Difficulty: Easy
  • Time to Complete: 1- 2 hours
  • Tools Required: Screw drivers
  • 22 of 25 people found this instruction helpful
I removed screws in a sequence that I felt wouldn't further damage the mixer until I had it completely unassembled. When I found the broken worm gear, I went online to find a part. I found an exploded view, but the part numbering was old, and the salesperson couldn't tell me what the worm gear and bracket assembly consisted of, as I only wanted the worm gear. After trying to drive the pin out of the assembly, and failing, I decided to back online and see if anyone else had a photo of the assembly. Luckily (and wisely) PartSelect,com did and that answered any questions I had. The price was better, too. Reassembly of the mixer was a cinch with the exploded view. It's working like new, and we're hoping for another 35 years of service from it! Thanks.

wire whip for mixer broke,

  • Customer: Henry from Glasford IL
  • Difficulty: Really easy
  • Time to Complete: Less than 15 mins
  • Tools Required:
  • 19 of 20 people found this instruction helpful
bought new wire whip for mixer, simple attachment.

Leaking Oil

  • Customer: Alice from Fort Myers FL
  • Difficulty: A Bit Difficult
  • Time to Complete: More than 2 hours
  • Tools Required: Screw drivers
  • 18 of 20 people found this instruction helpful
This was my husband's first time to taking apart any mixer - much less a heavy duty KitchenAid. Since we could not find a local repairman, the only thing to do was try to repair it himself. Using your exploded view of the machine he found on the internet, he ordered a gasket which he felt would be needed to repair the mixer. When he tore the machine down, the problem was what he had suspected - original grease had liquified and the rest had turned black in color. He went to a local auto parts store and bought a can of wheel bearing grease. He cleaned out the old oil and repacked with about a half pound of the new grease. The most difficult part of the repair was inserting the roll pin to attach the ring gear housing to the output shaft. It was impossible for him to reinsert the original pin, so he bought a new tension pin with which he was able to work. The only part he has been unable to align is the lever to lock/unlock the machine. He managed to set it enough that it locks when the lever is pushed halfway. The machine works great but I would not advise a person without any mechanical ability to try to repair these mixers.

Speed surging, especially on low setting

  • Customer: Donald from Tampa FL
  • Difficulty: Easy
  • Time to Complete: 15 - 30 mins
  • Tools Required: Pliers, Screw drivers
  • 16 of 24 people found this instruction helpful
Remove one screw on rear cover. Note wire colors coming from pcb at top of assy.
Replace electronic speed control pcb. You will probably have to loosen the two screws holding the brass end plate assy to install new pcb.
Note the number of turns you loosen, so you get it back in the same position. Tighten locking nuts on screws.

Flat Beater Powdercoat covering was peeling off.

  • Customer: MARILYN from St. JOseph IL
  • Difficulty: Really easy
  • Time to Complete: Less than 15 mins
  • Tools Required:
  • 13 of 17 people found this instruction helpful
I just traded the old beater for the new. It was just in time for cookie making.

The worm gear (plastic-made to be the weakest spot), three teeth were worn,

  • Customer: Robert E. from Loveland CO
  • Difficulty: Difficult
  • Time to Complete: More than 2 hours
  • Tools Required: Nutdriver, Pliers, Screw drivers
  • 9 of 12 people found this instruction helpful
I removed the lower unit along with the top unit, removed the gear, replaced the gear, then put back together. I removed the grease, saved most of it, then discarded what looked like the dirty grease. I cleaned inside thoroughly in case broken parts were inside. The three schematics were very helpful in re-installed. Mixer was 40 years old but works like new!

broken gear

  • Customer: angelo from palm coast FL
  • Difficulty: Really easy
  • Time to Complete: 15 - 30 mins
  • Tools Required: Screw drivers
  • 7 of 7 people found this instruction helpful
remove 6 screws for top of unit, remove gear assymble (23 screws), reassmbly and test it works great

Nut Screw Plastic Housing Split that stabilizes attachments on top side of machine

  • Customer: Richard from Bayfield CO
  • Difficulty: Really easy
  • Time to Complete: Less than 15 mins
  • Tools Required:
  • 7 of 7 people found this instruction helpful
I removed the old screw with a hand tool to avoid injuring my hand. I then used my hand to install the new screw. Piece of cake. Ordering from Part Select was was a breeze. The only minor issue was the part cost $4.33 and shipping was $7.25.

The paint on the flat beater for my electric mixer was chipping

  • Customer: Jennifer from Phoenix AZ
  • Difficulty: Really easy
  • Time to Complete: Less than 15 mins
  • Tools Required:
  • 7 of 8 people found this instruction helpful
I inherited an electric mixture from my mother-in-law after she died in 2004. The mixer must have been from the 70s. I guess I could buy a new one but I think of her each time I use it and it is almost like I keep a piece of her alive. The paint on the flat beater was chipping and instead of potentially poisoning my family I knew I needed to either replace the mixer or get a new Flat Beater. I had no idea, with the mixer being so old that a replacement part would even exist but it did! I purchased the replacement flat-beater and installed it in two seconds. Now I can use my mixer with immeasurable sentimental value and not pose any health risks to my family!

No action for the attachments for cutting/chopping.

  • Customer: David from Goodlettsville TN
  • Difficulty: A Bit Difficult
  • Time to Complete: 1- 2 hours
  • Tools Required: Screw drivers
  • 8 of 12 people found this instruction helpful
I removed the rear cap, decorative strap, and decorative ring. Next I drove out the pin holding the mixing head. I then removed the 9 screws holding on the motor/gearing portion. This facilitated removal of the gearing from the motor assembly. I next laid in the new gears and calculated what thickness of fiber washers were needed to hold the gears in place. Reassembly was in reverse order of dissassembly.

After sitting on my kitchen counter for nearly 42 years the rubber feet left foot prints.

  • Customer: Susan from Gig Harbour WA
  • Difficulty: Really easy
  • Time to Complete: Less than 15 mins
  • Tools Required:
  • 6 of 7 people found this instruction helpful
We:
tipped the mixer over on its side
pulled the old feet off
put the new feet in place and pounded them w/our fists
set it back up on its new feet
smiled

broken thumb screw

  • Customer: Kathleen from Silvis IL
  • Difficulty: Really easy
  • Time to Complete: Less than 15 mins
  • Tools Required:
  • 6 of 8 people found this instruction helpful
remove the old screw and screwed the new part in place. I like your link because it shows a picture of the fixture and you can find the part you need real easy. Will order from you again when I need it.

wire whip broke

  • Customer: Joanne from Springville IA
  • Difficulty: Really easy
  • Time to Complete: Less than 15 mins
  • Tools Required:
  • 5 of 6 people found this instruction helpful
you guys are great I ordered one day and the next day the wire whip was delivered!!!! Great job,thank you. Joanne
All Instructions for the 4KSM90PSCP0
1-15 of 147