4KSM105GBCER0 KitchenAid Mixer - Instructions

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.

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.

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.

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.

bought new wire whip for mixer, simple attachment.

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.

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.

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!

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

you guys are great I ordered one day and the next day the wire whip was delivered!!!! Great job,thank you. Joanne

My kitchenaid mixer is at least 37 years old. Everything has worked fine after all these years except the screw cap was flimsy, still stainless steel, but not sturdy. So I tried to replace it , but was told it was too old and couldn't get the part. I contacted Part Select and found a screw cap from newer models fit perfectly and should outlast me and the mixer, it is a lot sturdier than original one. It also arrived in 2 days, which was fantastic. Thanks guys

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.

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 $$$$$$$.

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.

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