Question about KitchenAid KP50PS Professional 5 Series Stand Mixer

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How do I fix my Kitchen Aid Professional 5 mixer that will not change speeds?

It starts fine, but I cannot adjust the speed. It is running fast and throws ingredients out of the mixing bowl.

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The speed adjustment is defective. You will likely need a service centre if you cannot open it up and find the problem and change any defective parts etc.

Posted on Nov 24, 2014

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Posted on Jan 02, 2017

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SOURCE: My Professional HD Kitchen Aid doesn't mix all of the ingriedienc

One thing many KitchenAid mixer owners complain about is that it's difficult to scrape the bowl while the mixer is running. Because the beater rotates around the inside of the bowl, and because the beater doesn't actually touch the bowl, you have to stop the mixer frequently to scrape the sides of the bowl to make sure all the ingredients are well incorporated.

Two companies have come up with fixes for that problem -- the BeaterBlade+ and the SideSwipe.

They are available for most KA mixers. Cook's Magazine tested both in January 2009 and liked the SideSwipe a tad more than the BeaterBlade because they thought it performed a little better on a particularly heavy cookie dough, but one reviewer on another forum commented that dough tends to bunch up on the SideSwipe's inner parts.

In any case, I have the BeaterBlade+, mainly because it was available from Amazon for $30, no tax, free shipping, and I didn't feel like driving around to find the other.

Both are made of very strong plastic and have silicone scrapers on the edges of the blades. The scrapers do touch the bowl and thus provide a constant scraping of the ingredients, assuring that everything gets mixed in. I've found that I rarely have to stop the mixer, except to make sure that the ingredients that cling to the beater itself are mixed in.

Posted on Jul 10, 2009

hslincoln
  • 235 Answers

SOURCE: Kitchen aid mixer drops metal shavings in the

Hi REDLACQUER. Sorry to hear about the metal shavings. This is probably not to best way to take iron in your diet... My first thought would be to ask if your mixer is still under warranty. If you’ve had the machine less than one year, then I’d let KA replace your mixer with a new one. However, I suspect like many who seek assistance from FIXYA.com, your mixer is out of warranty, so what can you do?
Have you been able to find exactly where the metal shavings are originating? From the symptoms you describe, it appears that the planetary/agitator shaft assembly may be rubbing against its housing and generating the metal shavings at higher speeds. Have you noticed any increased noise levels/squeaking/screeching when the planetary rotates? It’s also possible that the planetary is out of alignment and not rotating true. Could the agitator shaft been jarred or hit hard during set up or moving in or out of you storage cabinet? Or the shavings could be symptomatic of other internal gear problems, but that would be the least likely scenario as the mixers internal gears are pretty much self-contained.
The good news is that this can be troubleshot and fixed quite easily (OK, maybe with a little effort) by yourself if you are a DITY type person, and feel adventurous. However, before you start to disassemble your mixer, be sure you have the Parts List manual on hand. If you're lacking one, you can download a PDF version from the KA website at: http://www.kitchenaid.com/flash.cmd?/#/page/home.
Click on Customer Care>Locate Manuals & Guides> Enter the 6 character model number, in your case, KP2671, and select the last file, KP2671XWH3.pdf (325.07 KB) listed under Parts List (24) (check to verify that it matches your mixer model).
Turn to pages 4 & 5, titled “Case, Gearing and Planetary Unit”, which provides and exploded view for the disassembly and reassembly of your mixer, along with all the parts. I suspect your Planetary Assembly, Illus No. 15, is rubbing somewhere against its housing, Lower Gearcase, Illus. No. 24.
To gain access to these pieces you’ll need the following tools: a regular or Phillips screw driver, retaining clip pliers, and a small drift pin punch and a small hammer. You need to remove the Transmission Housing (Illus No. 7) and remove all the lubricating grease from the transmission housing and gears (when removing the grease be on the lookout for shavings in the grease which would indicate excessive gear wear). This will allow you to remove Illus No. 25, 21, 18 & 19, Retaining Clip, Bevel Gear, Retaining Pin and Worm Gear Follower, respectively.
Once you remove the Retaining Pin (Illus. No. 18) the Planetary Assembly can be tapped down through the Lower Gearcase Assembly (Illus. No 24). With the Planetary removed, you can inspect it and the inside of the Lower Gearcase to determine where the shavings originated. Be sure to look closely at the Planetary Gear in the lower gearcase as well as the Agitator Shaft Pinion Gear (Illus. No. 12). That will also identify what parts need to be replaced, which you can order online.
You’ll need to replace the grease you removed with new grease. You should use a food-grade grease that you can order online (although I’ve seen automotive bearing grease used too – your call). Do not try to reuse any original grease as it may have ‘debris’ in it.
Here are five potential vendors in no particular order: RepairClinic.com; mendingshed.com; searspartsdirect.com; partstore.com; and Grainger.com (for grease). 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.
Finally, here are some links to several excellent websites that detail the disassembling/reassembly of a KA Mixer. The mixers displayed in the links are different KA models, but the principles are the same.

Between these three websites and their excellent pictures and descriptions and your Parts List manual, you should now be able to completely disassemble and reassemble your mixer.
I hope this helps. Howard, Burke, VA
If this solution was helpful, please rate it, thanks! – hslincoln

Posted on Jan 12, 2010

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