After my wife’s KitchenAid Pro 600 Series stand mixer had been running for several years I noticed the sound wasn’t quite right. After a bit of research I came to the conclusion that it was time to replace the grease in the gears. It was a fairly simple (although messy) project that essentially consisted of disassembling the housing, using degreaser to remove the old grease, and repacking the gears with new grease. I used common bearing grease available at your local hardware store.
For help disassembling the housing, download the manual from the KitchenAid.
