iFixit - Answers With Device "KitchenAid Professional 600"

KitchenAid Professional 600: Accessory drive won't turn unless pushed in.

Mon, 18 May 2026 16:12:40 -0700

My Kitchen Aid Pro 600 recently stopped turning the planetary shaft. I disassembled it and found that the play in the shaft was allowing the bevel gear to slide above the pin that engages the shaft. I replaced the composite washer at the bottom of the planetary shaft with at thicker one, and that eliminated the vertical play in the shaft so the bevel gear again engages the pin; however, now the accessory drive shaft will only turn if held in from the outside, as though it were missing a thrust washer, but there was no washer when I first disassembled it months ago for a different repair, and none of the videos I've watched show one, either. Seem unlikely that the gears would be that worn, but I'm no expert. Any ideas?

KitchenAid Professional 600: Bowl Lift Support is excessively loose

Tue, 23 Dec 2025 09:45:46 -0700

How do I tighten the excessively loose Bowl Lift Support?

KitchenAid Professional 600: Why is my machine wobbling when I mix cookie dough?

Wed, 03 Dec 2025 21:41:46 -0700

Why is my mixer wobbling when I mix cookie dough?

KitchenAid Professional 600: Planetary assembly doesn’t fall out, but drops creating a gap

Tue, 29 Apr 2025 12:56:38 -0700

I bought a used kitchen aid pro 600 6qt. It made jerky movements when mixing. So, I took it all apart. The gears are all fine. But the planetary assemble drops down about a quarter inch and the stationary gear in the main housing slides down with it and creates a gap and jerky movement. Help!

KitchenAid Professional 600: Bowl Lift not locking

Fri, 01 Sep 2023 14:29:07 -0700

I am not sure if anyone has encountered this issue. I lift the bowl with nothing in it and it works fine. When ever I want to use the mixer and the bowl has anything in it it will not lift when I turn the lifting arm. I am not able to find if there are replacement parts for this at all. Any help will be appreciated.

KitchenAid Professional 600: Lower guide for planetary gear shaft has come lose

Fri, 03 Feb 2023 23:14:56 -0700

I'm not sure if I am correctly referring to part in question, but this piece (see pictures) appears to have been originally press fit in (or maybe welded/attached?) but it has come lose and now I can't get it to stay in place. As a result, there is a lot of play in the shaft... It would help if I knew how it was originally attached. Most exploded views seem to indicate that this is not a part meant to be replaced...

Any suggestions?

KitchenAid Professional 600: Grinding noise when on low speed

Thu, 02 Jul 2020 14:42:27 -0700

I just got a refurbished 600 Pro mixer, but when I turn it on it makes a loud grinding noise. It sounds like it's coming from the motor, and when I go up in speed it goes away until I turn it back down.

KitchenAid Professional 600: Why is my recently refurbed Kitchenaid Professional 6 mixer so loud?

Wed, 13 Nov 2019 22:37:42 -0700

I recently refurbished my Kitchenaid Professional 6 mixer by replacing the plastic gear box with a metal one, as well as replacing the motor and worm gear. Now it’s loud. Real loud. There’s no screeching or grinding, just an uncomfortable loudness. I’m positive it’s the interaction of the worm gear with the motor, as I removed the other gears from the gearbox and it’s just as loud as when it’s fully geared.

I also tested the gears without the gearbox on (had someone hold down the worm gear as I turned it on) and discovered the sound is much quiter when the worm gear and motor gear aren’t as closely snug as they can be. But when I put the gear case on, there’s absolutely no play, as it should probably be. I discovered as well that if the top right screw on the gearbox ( if looking from the front) is slightly loosened, the sound diminishes, though not as much as I’d like.

What can I do to make the mixer more quiet, as it doesn’t seem like it should be as loud as it is. Could the gearcase be faulty and pressing down on the gears too much?

⟐ Commented November 13, 2019 at 22:37 MST

KitchenAid Professional 600: Why does it look & sound fine, but stops when you put soft butter in?

Sat, 02 Mar 2019 00:54:37 -0700

All I was trying to do with it was normal use. It just stops completely when i put anything in the bowl.

KitchenAid Professional 600: My attachments seem to fit sloppy

Thu, 04 Jan 2018 12:56:59 -0700

The attachments seem to fit very loose

⟐ Commented January 04, 2018 at 12:56 MST