Can a stripped bevel gear cause my KA Pro 600 to not turn?

SOURCE: KitchenAid 600, Stand Mixer -

Hi. Stop using your mixer. If your mixer is still covered by warranty, call Kitchenaid Customer Service, they are very good with warranty repairs.

If your mixer is out of warranty, remove the silver band that surrounds the top of mixer. Remove the top cover. At the front of the mixer, locate the transmission housing which is now exposed. Examine this housing carefully for cracks. If you find cracks anywhere in this housing, you have found the under-engineered plastic transmission housing. Kitchenaid's replacement housing is made of metal. Your plastic housing has no business being in a mixer that is marketed as being able to mix bread dough. It cannot!

If you're confident that you can make the repairs yourself, go to the Kitchenaid website and download the parts drawings. Remove the Trans. housing, remove the worm gear shaft assembly which is driven by the motor.. Remove and save as much grease as necessary to thoroughly inspect the worm gear. Inspect the worm shaft bearings. Look for cracks, or missing pieces on the bearings. Look for crunched cogs on all gears. Be prepared to wait at least a month for your parts to arrive after you order them. The replacement grease should be Shell Darina 2, or Chevron FM ALC EP 2.

If you're not confident about repairing this yourself, call Kitchenaid and determine the nearest "approved" repair shop.

You may be able to pressure Kitchenaid to pay for the damaged parts in your mixer. They are still installing these plastic Trans. housing on new mixers. Insist on a metal cover when replacing. Apparently, Kitchenaid feels no shame in their manufacturing process, and will not issue a recall notice for these housings. They are substandard at best.

If you found this solution helpful, please rate it. Good luck! ricardok45.

SOURCE: Remove shaft/gear on KA 6qt Pro

Beth, First you should have the parts manual (Pt No. 8212278 Rev D) in your possession. You can download a PDF file from Kitchenaid, if you don't have it. Once you've have the manual, turn to page 4 - Case, Gearing and Planetary Unit.
I'm also assuming you're able to disassemble the mixer and access Illus. No. 4 - Transmission Housing. You want to remove the cover and place to the side. (Be careful of all the grease inside the cover and on the gears) Next wipe the gears and shaft clear of the grease. You want to get to Illus. No 10, so first you must remove Illus. No. 7 - Retaining Clip using a pair of external clip ring pliers. Next, lift Illus No. 8 - Bevel Gear off the shaft. Next, remove Illus. No 9 - Retaining Pin. That will finally allow you to lift Illus. No 10 - Worm Gear Follower of the shat.
I hope this helps.

SOURCE: MY KITCHENAID MIXER MODEL # KSM5 TURNS ON BUT THE

The most common part to fail in this mixer is the worm gear:
http://kitchenaidmixerspares.co.uk/Home/tabid/36/p/Mixer-Part---Worm-Gear-and-Bracket-240309-2/ProductID/103/CategoryID/17/Default.aspx

SOURCE: My KitchenAid Artisan stand mixer

Your guess is correct. Get it cheap on Ebay.

SOURCE: I have a KitchenAid Professional

Don't worry about the Worm Gear for now. You have to make sure that the Motor
is fully functional by itself: Remove the Transmission Housing Cover (4 screws) and
the two screws holding the Motor down. Lift the Motor off the Worm Gear and set it
on the side (be careful of AC voltages from the Motor and Control Assembly).
Select Stir setting and observe the motor shaft. Is the Motor running? If it is,
Select other speeds to see how the motor performs.
With the motor now fully functional, you can now check the Worm Gear Follower
for worn out/broken teeth. Remember the motor drives the Worm Gear, it then in
turn drives the Worm Gear Follower (you may have to remove the grease to see it)
The Bevel Gear sits right on top of the Follower and drives the Attachment Gear.