Why does my kitchen aid professional 550 squeaks when using attachments

SOURCE: Kitchen Aid Classic Mixer

I have this problem too -it is rather common if you search the web. There was a suggestion posted on this site about what to do. See http://www.fixya.com/support/t125253-mixer_leaking_oil I have also read about other people taking it to a Kitchen Aid repair place where they repacked the grease for about $45. I took mine apart and there is gobs of grease around the gears. Right now I am still trying to figure out what to do. I am going to have my father look at it to see what he thinks since he is good with motors. The Kitchen Aid web site says that the grease is FDA approved, so at least it's not going to kill you if a little gets in your food. Their suggestion is to take it out and run it for about 5 minutes at least once a week. They say it leaks if it is not used often enough. That logic doesn't make much sense to me, but you could try it. Mine seems to leak more when I run it because the grease heats up and liquifies more. I hope that helps. I'll let you know what happens with mine, once it's fixed. Lisa

Mixer leaking oil

fixya.com

Mixer leaking oil My Kitchenaid...

SOURCE: KitchenAid Mixer Squeaking

I would first get some canned air. Spray out the area around the Shaft. This is to make sure no harden food is up there. After that is clean spray some cooking spray "PAM"in the Shaft area. This should help. Good Luck

SOURCE: My Kitchen Aid mixer attachement rod won't spin when turned on.

It sounds likme you may have stripped/broken one of the gears up in the mixer head. Any competent appliance repair shop should be able to fix it.

SOURCE: Kitchen Aid Stand Mixer won't release beater

I had this same problem as well.  The beater was stuck like glue to the rotating arm, and it would not budge with any amount of pressure.  I tried the cooking spray and it did nothing.  But today I put a rag in hot/boiling water and then carefully wrapped it around the top of the beater.  I let it sit for 10 minutes. Then I put the rag in hot water again and repeated the process for about another 5 minutes.  When this was done, I covered the beater in a towel (to protect it) and forcefully tapped (ok... I pounded) it with the flat side of my meat tenderizer (it was all I had...you could use a mallet or hammer).  It took a little bit of work because I had to hammer it from the bottom, then the side, then the top to get the little spoke guided through the shaft.  But it did finally come off.  After cleaning with hot water, I put the beater on again and noticed that it was still a little hard to get on/off.  So, I put a little bit of veg. oil on it, and it seems to be better.  Going forward, I will be sure to clean the top of the beater & arm after each use and then coat it with a little oil to keep from sticking.  Best of luck!

SOURCE: kitchen aid gear- where the beaters are attached -

Hi BEV, By the symptoms you are describing, it appears that your planetary/agitator shaft (where you attach the beaters) assembly is dropping from the mixer head, is that correct? When you replace the planetary and lift your bowl up into a ‘locked’ position, the planetary is being held in place by the beater resting on the bottom of your mixing bowl and ‘works’ for the time being. However, you don’t want operate your mixer that way for very long.
I suspect what caused the planetary/agitator shaft to drop from the mixer head is that one of the pins used to secure the planetary/agitator shaft assembly to the mixer head has failed (sheared) so now there is nothing holding the planetary/agitator to the mixer head. The good news is that this is fixable.
The inspection and troubleshooting of your mixer’s transmission is a DITY capability, particularly if your mixer is out of warranty. Just be sure to have the correct Part List manual around when you start to disassemble your mixer. If you are lacking one, you can download it from the KA website (http://www.kitchenaid.com/flash.cmd?/#/page/home).
Click on Customer Care>Locate Manuals& Guides> and enter the 6 character model number, in your case KSM50PS. Unfortunately, entering your exact model number yields many Owners manual and no Parts Manuals, so I would use the following, KSM500, and select the last file under Parts List (16) KSM500WH0.pdf (857.41 KB). Verify your mixer matches the mixer in the illustrations. Turn to pages 4 & 5, titled ‘Case, Gearing & Planetary Unit, for the disassembly, troubleshooting, and reassembly of your mixer, along with a listing of all the parts. Make sure you inspect
Locate Illust. No. 14, Groove Pin, Part # 9795443. This pin retains the planetary/agitator shaft to the mixer head, and I suspect this is the pin that has failed and needs to be replaced. Getting to it will require the disassembly of the whole transmission. This will be messy as you will need to remove all the grease from the gears and center shaft.
While your mixer’s apart you should check for any other unseemly wear and tear on the gears, etc. You may find more things that need replacement than just the groove pin.
Besides needing a replacement pin and grease, you might consider replacing the gasket, too. I recommend using a food-grade grease that you can order online (although I’ve seen automotive bearing grease used too – your call).
Here are five potential vendors in no particular order: RepairClinic.com; mendingshed.com; searspartsdirect.com; partstore.com; and Grainger.com. You should search for ‘food grade grease’. Prices can vary widely between vendors, so do your comparison shopping.
It can be messy but quite gratifying to diagnose and repair your mixer yourself.
Here’s a link to an excellent site for disassembling/fixing your KA Mixer. Although it’s a different model, the principles are the same: http://www.neilcrockett.com/mixer.htm and another link to a site that details the disassembly and replacement of mixer’s grease, which might be helpful, too. http://www.foodonthefood.com/food_on_the_food/2009/04/how-to-repair-a-kitchenaid-mixer-yourself.htmltl
If you feel troubleshooting and repairing is beyond your capability, then I would seek out a local small appliance repair shop in your area. KA Customer Care can give you names of local KA authorized repair shops in your area, but you can also do an online search to supplement what KA may provide you. Call to explain your circumstances and find out their hourly rate and get an estimate of what they think it would cost to repair your mixer. Also, always obtain three or more estimates – do some comparison shopping.
Good luck and have fun. I hope this helps. Howard, Burke, VA
If this solution has been helpful to you, please rate it, thanks! – hslincoln