Models > 4K5SSOB0 > Instructions

4K5SSOB0 KitchenAid Mixer - Instructions

All installation instructions for 4K5SSOB0 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 4K5SSOB0
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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.

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 4 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.

Bowl spring broke in two pieces

  • Customer: Bernadette from Hackensack MN
  • Difficulty: Really easy
  • Time to Complete: Less than 15 mins
  • Tools Required: Screw drivers
  • 1 of 1 people found this instruction helpful
Removed the two screws that hold the bowl spring in place. Removed broken spring. Replaced broken spring with replacement spring. Tightened two screws that hold it in place.

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.

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!

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.

The worm gear was broken

  • Customer: DONG from Elk Grove CA
  • Difficulty: A Bit Difficult
  • Time to Complete: 30 - 60 mins
  • Tools Required: Pliers, Screw drivers
  • 1 of 2 people found this instruction helpful
I removed the pin from the outside shaft,then removed all screw around the body of the mixer,then removed the top case out,took 3 screws out from the the gear assembly case......punched the pin out of worm gear then release the little shaft out from the case,replaced a new one....then starting go backward till completely all assembled don't forget lube grease to all gears and test run good very smooth.........it's ok

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

Spring latch on Kitchenaid broke

  • Customer: john from North Kingstown RI
  • Difficulty: Really easy
  • Time to Complete: Less than 15 mins
  • Tools Required: Screw drivers
  • 1 of 2 people found this instruction helpful
Two flat head screws removed, swapped out the latch, and replaced.
The entire repair took about two minutes.
Price was acceptable given the worth of the mixer.

Worm gear broken

  • Customer: Jennife from Lancaster PA
  • Difficulty: A Bit Difficult
  • Time to Complete: 30 - 60 mins
  • Tools Required: Screw drivers, Wrench(Adjustable)
  • 2 of 5 people found this instruction helpful
I called my fiancée.

The Kitchenaid heavy duty mixer's motor would run but the mixer head would not turn.

  • Customer: A. W. from Rogers AR
  • Difficulty: A Bit Difficult
  • Time to Complete: 1- 2 hours
  • Tools Required: Pliers, Screw drivers
  • 2 of 6 people found this instruction helpful
Obviously the problem was in the gear box of the mixer. I disassembled the gear box by removing the four large screws holding the base then the four screws at the rear and center of the mixer. Then I removed the thin metal ring covering the five screws around the front of the housing by gently prying up with a small screwdriver. The five screws beneth the ring have to be removed with a small blade screwdriver turning them a round at a time in sequence until they are free. Gently pry the two housings apart with a screwdriver and lift our the lower half with the plantary gears. I found the drive gear was stripped. I went to PartSelect on the web, eaisly found the exploded view of the mixer's gear box and ordered the gear I needed. The gear is part of an assembly attached to the mixer housing with three screws. Work around the lubricant in the housing. Within four days I received the new gear, installed it by reversing the above procedures and the mixer is working again. The total cost was $34.85. Not a bad investment considering the mixer cost over $400 and would have been trashed for want of one part.

worn gear

  • Customer: Robert from Auburn ME
  • Difficulty: Easy
  • Time to Complete: 15 - 30 mins
  • Tools Required: Screw drivers
  • 1 of 3 people found this instruction helpful
dissassembled mixer and replaced gear

no mixing

  • Customer: per from highland MI
  • Difficulty: Really easy
  • Time to Complete: 15 - 30 mins
  • Tools Required: Screw drivers
  • 1 of 3 people found this instruction helpful
dis-assemble, replace part, re-lube, reassemble, test good.

Bowl won't lift

  • Customer: Beth from Torrington CT
  • Difficulty: A Bit Difficult
  • Time to Complete: 30 - 60 mins
  • Tools Required: Pliers, Screw drivers
  • 1 of 3 people found this instruction helpful
A part required to operate the bowl lift had failed, "broken in half". I removed the base, by removing 4 large philips head screws, then removed the pedestal which housed the broken part by removing 4 more large philips head screws. I used a hammer and punch to drive out the split pin, a pair of pliers to remove the cotter pin and replaced the broken part.

The plastic piece inside the mixer that raises and lowers the arm

  • Customer: Benita from West Yarmouth MA
  • Difficulty: Easy
  • Time to Complete: Less than 15 mins
  • Tools Required: Pliers, Screw drivers
  • 0 of 1 people found this instruction helpful
Took the mixer apart so that the broken pieces of plastic would fall out. I needed a large philips srew driver -wasn't able to improvise. A friend (male) came over so between the 2 of us we took the machine apart and put it back together. The motor works fine, It was just the arm lever and everything is working perfectly now.
All Instructions for the 4K5SSOB0
31-45 of 123