3K45SS KitchenAid Mixer - Instructions

1. Removed the mixer back plate Cover. 2. Removed the Speed Control Plate and retained spring, wires and ground wire. 3. Removed the old Speed Control Plate screws. Noted Control Plate pitted contact. 4. Removed old Triac Phase Control Board. 5. Removed old Governor. 6. Installed new Governor. 7. Installed new Phase Control Board. 8. Installed new Speed Control Plate and retaining spring. 9. Reattached Speed Control Plate wires. 10. Adjusted Speed Control Plate Screws and set mixer speeds from Stir to maximum settings. 11. Replaced Motor Brushes on left and right side of mixer. 12. Reinstalled mixer back plate cover.

The repair was easy only requiring a phillips head screw driver to remove the old screw cap. The new screw cap fit snuggly and required a little downward pressure from my hand to seat it. Then I simply tightened the screws. Good as new for this 30+ year old mixer. My wife loves this mixer that was given to her by her Aunt. Glad we could keep it going.

I removed one screw on back, once inside mixer I removed the ground screw then pulled off the black and white push on caps, then I reversed everything to get it installed, very easy

Fairly easy if you have done it once before.

Follow a YouTube video step by step

watched an internet video to see what to do. Unfortunately even after replacing the chip the mixer it still didn't work.

I just thought there had to be a way to replace a component to correct the speed problem. I've never worked on a mixer before, so I thought it would be a challenge. Actually the repair was fairly easy. Make sure the unit is unplugged from AC. I removed the back motor cover with one screw and removed the end seal. I compared the parts on the mixer with the diagram provided at the Part Select website. I then ordered the parts. When the parts arrived 3 days later, I removed the Speed Control Plate ( 3 screws) and Phase Control Bd (1 screw) as one Assy. Removed the old Governor and slipped on the new one. Assy the new Speed Control Plate and Phase Control Bd comparing wiring and screwed them back to the unit. Removed the two motor bushes by unscrewing the side black motor brush holders and inserting the new brushes. I tried powering motor and nothing happened. I thought, great, now what did I do? I found out that you must make sure the brushes actually touch the armature otherwise the motor doesn't run. The gears are worn from grinding to much deer meat and my wife says no more. I've ordered new gears and looks like that job, too, will be easy to repair. Adding these parts is alot cheaper than buying a new unit and it will run like new. Not bad for over 10 years of usage.

Used the diagram on the website and a video
Totally worked!

disassembled replaced part reassembled now works well

I removed the spring loaded brush screw on the side of my mixer and lost it the next day. I found a schematic of this part on your website and ordered the four pieces that make up the brush screw(?). They arrived in just a few days and I referred back to the schematic to put it together. I then popped it in my mixer, screwed it down, plugged her in and away we go! Easiest repair I’ve ever done! I’m a 70 year old retired lady and not very handy, but this was an easy fix! Thank you, PartSelect!

Skewer the screw in with my fingers,

Disassembled gear housing and replaced worm gear/bracket assembly. The hardest part was cleaning and working around what looked like 2 pound of grease. I will contact you again if I need parts for anything. Thanks.

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.

disasembled found stripped gesr assembly ordered and replaced went very smoothly. It would have been good to have info and acsess to the correct gear grease to use in a mixer / food grade but it worked out well anyway.shipping was very fast thanks

just as the you tube instructions said.