4KP26M1XBS5 KitchenAid Mixer - Instructions

3d time in 20 years, but the mixer itself is built like they did 20 yrs ago PartSelect had the part in my mail box in *20 hours* from online order!
See https://www.ereplacementparts.com/kitchenaid-4kp26m1xmc4-professional-stand-mixer-parts-c-114958_114959_115101.html for instructions.
BUT - they changed the design so a power switch previously separate from (to the left of) the circuit board is now a microswitch integrated on the board, leaving you with ONE LESS WIRE.
Attached is the fix diagram & directions for the new design.

Remover screws from top. Used snap ring pliers to remove snap ring replaced gear and reassemblied.

removed top housing, removed gear housing cover, removed all gears, cleaned out all grease, obtained gears and new housing cover, fit all gears in housing, filled with grease and put on housing cover.
Reassembled mixer.

The repair was easy, I only had to order new gear assembly parts and to replace the associated worn parts (shaft, pin, and gears).

I went to YouTube and there are several Mixer repair videos that go through step by step. Four ounces of food sate grease is also required as the grease must be changed. This appears to be a a common problem. One issue that I discovered is that the old planetary had an Oring in the shaft The replacement parts do not. They must have changed the design so please make sure that food safe grease is used.

Removed top cover of mixer which was very easy. Then marked the 4 wires so they could be plugged back to new switch correctly. Removed 2 attaching screws to remove switch and one squeeze connector. Installed new switch after plugging on 4 wires. Snapped squeeze connector in place. Reinstalled top cover.

Remove and replace gear case. Apply food grade grease secure with screws.

1. Removed the decorative band then the upper motor cover.
2. Removed the upper gear case cover. Found one of the two alignment pins broken.
3. Inspected gears.
4. Cleaned out old grease.
5. Repacked with new food grade grease.
6. Reassembled.

Remove covers, open gear box, remove lock ring and gears to deterime which gears were bad. Remove old grease, install new gears and pack with new grease.

replace worm gear

so easy to remove the switch. I first marked the wires, 1-2-3-4 and then removed them from the old switch. removed the old switch and replaced with the new one and plugged in the wires as per markings. tried it out before replacing the top and it works perfectly. no longer timid about effecting repairs on my own. the diagrams on the website were a great help. this is a great company to do business with. part was here in 3 days.

I have replaced so much on this mixer I can take it apart in my sleep. # speed controllers and now 2 gears. just wish we still had the 40 year old mixer we had, never half as many problems. New are not made like the old.

Taking apart the machine is really easy. I was worried the grease would have spilled all over the places, but when the machine is cool, the grease is solid, so no spill. Replace the parts is quite straightforward, and there are plenty of tutorials on line. The only tip is that the grease used by KitchenAid is dark, and it is not easy to see all the small parts when you take the gearbox apart, so pay attention at what you do and at what you throw away... when I got to put it back together I missed a special concave washer which must have been trapped in the grease. Other than that... it has been an easy repair, the mixer is back up and running and I saved a ton on $$$

Removed old housing, pulled spring clip, slide on new gear and replaced clip. Put on new gasket and housing. Replaced outer cover. Done.

Could not get it properly installed. Had to take to a repair center for completion.