Kitchenaid K45SSWH Mixer only starts fast then sometime slows

The mixer's planetary is not disconnected when the meat grinder is attached and continues to turn.

If the noise you hear only occurs when the grinder is in place, then the grinder may be assumed to be the cause. Consult the meat grinder's instructions and make sure that nothing is loose or overtightened.

Here is a diagram of your unit. Whirlpool Mixer K45SSWH 0 Parts List

Are you are referring to the pivot pin that joins the mixer head to the stand?

If so, it can be slid in place after you turn the whole mixer on its side and look up the underside of the stand. There is a screw which locks the pin in place. Loosen the screw and the pin will go into place. Tighten the screw afterwards.

Check the following link for diagrams and parts list for you mixer.
http://www.partselect.com/Models/K45SS/Manufacturer/3/
Good luck on your project

Did you undo the black screws on the side in your cleaning efforts?
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http://www.kitchenaid.com/shop/countertop-appliances-1/countertop-appliances-2/stand-mixers-3/-%5BK45SSWH%5D-400008/K45SSWH/

I push down with kniffe the chrome ring and remove the agitator shaft that was broken

Hi. Go to mendingshed.com. Look for the page titled Kitchenaid mixer parts. Near the top of the page, locate the FREE KA Service Manual. Download it. This valuable manual covers your K45SS mixer. In it you'll find what you need to adjust speeds and more.

If you haven't already, go to kitchenaid.com, select customer care and then select locate manuals, select it. Enter your model# in the search window in this manner, k45sswh. When you get to the manuals page scroll down and find the parts list for your mixer. It will come in handy if you ever need to order parts.

If this solution has assisted you, please rate it.
Good luck! ricardok45

Hi. Go to mendingshed.com and download their free Kitchenaid Service Manual. This valuable document will help you to tune up your mixer, and covers the K45SS model. They also sell kitchenaid parts.

Go to kitchenaid.com and search for a parts manual for your mixer. Enter your model# thusly k45sswh.

If this solution has assisted you, please rate it. Good luck! ricardok45.

Hi. Goto kitchenaid.com. Click on the Customer Care button, click on find manuals, in the search window, enter k45sswh. this page will show the operating manual and farther down the page the parts manual. Download both these files.

Go to mendingshed.com and locate their FREE kitchenaid service manual and download it. This manual will greatly assist you or a repair person should your mixer ever need repair.

A word of caution...Do not overload the mixer with too much bread or cookie dough or it will cause damage to the transmission. Use the recommended capacities found in the manual.

If this solution has assisted you, please rate it. Good luck! ricardok45