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My KitchenAid mixer makes a popping sound -- Is it a gear problem?


Customer

My Kitchen Aid Pro 600 is making a popping noise and I am wondering if it is related to the plastic gear box cover and plastic gears that were supposedly used in the 600 models. Does this sound like an apt diagnosis?
Customer
I don't know for sure that my mixer HAS a plastic gear box or gears, but I just read that it was a likely problem with my model.
Support
The gears are all metal, however they did use a plastic gear housing that would crack and leak grease out of the planetary.
Does the paddle stop moving when you are mixing items?
Customer
no
but it pops
and makes a grinding sound
the grinding sound is constant but is punctuated with the occasional popping
the mixer was a gift from a friend who was downsizing - and I know he used it to make bread dough
Support
Definitely a gear problem. Most likely it will be the housing (if it is plastic) and the worm follower gear, which is made of a weaker metal, and is usually the one that strips out.
Customer
i think what i'm going to do, instead of packing and paying 30 shipping to KitchenAid is crack it open tonight and give it a look
Support
Perfect. Did you find the service manual on our website?
Customer
do you know to what the grinding and occasional popping sound might be attributed? or would anything you said be a guess?
Support
I would say you are looking at a stripped gear, and it will most likely be the bottom gear on the center shaft, it is called the worm follower gear
Customer
ok - i recognize that gear on your website (i'm so happy i found your site) - and I found the manual too
Support
Perfect. Let me know if you have any questions
Customer
thanks!