KitchenAid K5SS Heavy Duty Commercial Stand Mixer Logo

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Posted on Mar 11, 2017
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K5SS Mixer has Growling/Grinding sound Toward the back.

My dad's K5SS Mixer is grinding/growling Toward the rear of the machine. The more it is under load the more you hear it. When trying to identify where it is coming from it right about where the Spherical Bronze Bushing at the back of the electric motor is. I have it all disassembled and am wondering how I can tell if the bearing is to blame. There does not seem to be any galling of the bearing or shaft there. It all looks smooth. The only thing i have detected is that many of the screws in the machine were almost hand tight. and more important the very tips of the fan toward the stator are shiny like they been rubbing. But I don't see what in the bearing assembly they've been rubbing on. Any Suggestions would be most appreciated. We have a family cookie bake next week and our mixer is invaluable for it. Thanks so much for you kind attention and Merry Christmas, happy Holidays.

Red

1 Answer

Ross Keen

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  • KitchenAid Master 1,365 Answers
  • Posted on Mar 18, 2017
Ross Keen
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Joined: Jun 20, 2007
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The bearing housing is not very expensive, I'd replace it, do not overtighten the screws, it will bend the bearing bracket. Current versions use nylock nuts which tend to stay tight unlike what you have. It's only taken Kitchen Aid 20 years to discover nylock nuts.

5 Related Answers

A

Anonymous

  • Posted on Nov 26, 2007

SOURCE: the kitchenaid is making noise and moving

Sounds like the hinge pin may have slid out of half of the base..

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Anonymous

  • 135 Answers
  • Posted on Mar 20, 2009

SOURCE: Kitchenaid mixer makes a clanging noise

Hi. If your mixer is under warranty, call Kitchenaid. They are very good at replacing mixers under warranty.

If you are out of warranty, this is where the fun begins, NOT!

Remove the silver band from around the top of mixer. Remove 4 screws that secure the top cover, remove cover and at the front top of the machine locate the transmission cover. Inspect this cover carefully for cracks. If you find cracks in it...You have just discovered Kitchenaid's dirty little secret. A cheap plastic transmission housing! The failure of this cheap part is the cause of all of the rest of the damage inside the mixer, which may include a destroyed worm gear and shaft, destroyed bearings and their seats. You're not alone. I estimate that thousands of these plastic parts have failed causing great damage to the rest of the mixer

Kitchenaid's replacement housing is made out of metal. If you feel up to the task of repairing the mixer yourself goto the Kitchenaid website and do a search for the parts catalog for your mixer model, these will assist you with disassembly, reassembly and parts ordering.

If you're not up to the task, take it to an authorized repair place once you have put the cover back on.
Even if you're out of warranty, you may be able to have Kitchenaid pay for the replacement parts, they did for my mixer. Be persistent with them and try to get to a manager with your complaint. This cheap piece of plastic has no business being installed on a high-priced machine.

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

Anonymous

  • 135 Answers
  • Posted on Mar 25, 2009

SOURCE: kitchenaid K5-A mixer ''growling''

Hi . Chevron FM ALC EP-2 grease is what you need for the lubricant. This has a Mineral Oil base, allowing for it to, at some time, drip into whatever it is that you mix without concern for your health. From what I can, tell this is the only thing that needs to be done. Clean out as much of the old grease as possible.

Goto www.mendingshed.com and download for free a Kitchenaid Service Manual that will cover your mixer.

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

co7196

Ned C Cook

  • 3433 Answers
  • Posted on Sep 24, 2009

SOURCE: pin comes out/mixer attachements grind on bowl.

See what stops it going forward. If it's a rubber pad you can replace or repair it. As far as the pin is concerned. Is the hole worn out or the pin? Measure the pin size and see what diameter it is If you can send me a picture co7196@yahoo .com and we'll come up with a satisfactory resolve. Ned

Anonymous

  • 4 Answers
  • Posted on Nov 13, 2009

SOURCE: I have disassembled my K5SS Kitchen Aid mixe with

If it is similar to my KSM 150 Mixer, then you just need to reset the stator winding. There is a black wire that attaches above the brush on one side just sitting on top of the brush slide that needs to be pushed back. Make sure it is not plugged in and push it back with a screw driver.

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I have a 40 year old Kitchen Aid mixer, Division/Hobart. I just finished with some dough and the mixer sound like it was growling,slowed down, turned it off, does not work now

There can only be three things:
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The grinding could either be the gears in the beater end of the mixer, or the motor bearing on
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The gears are available as they are the same as for newer mixers like the K5SS.

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My mixer is making a grinding sound. I had it serviced a few years ago, because the gears sounded like they were slipping when making bread doughs. The service center said it only needed an oil change....

Its worth fixing but having someone who specializes in your product is the key, these machines are wonderful products and engineered great. I would say if your mechanically inclined jump on inside the machine and see whats going on, but if your NOT send unit to us USPS it's not that expensive plus you would only have to pay oneway, we will take care of the shipping from our side,,estimated cost $29.00-$49.00
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Kitchenaid K5-A mixer ''growling''

Hi . Chevron FM ALC EP-2 grease is what you need for the lubricant. This has a Mineral Oil base, allowing for it to, at some time, drip into whatever it is that you mix without concern for your health. From what I can, tell this is the only thing that needs to be done. Clean out as much of the old grease as possible.

Goto www.mendingshed.com and download for free a Kitchenaid Service Manual that will cover your mixer.

If this solution has assisted you, please rate it. Good luck! ricardok45
1helpful
1answer

Sunbeam 2346

I just did it. Get your digital camera and take pictures along the way so you'll know how to reassemble it.
On the front of the mixer, there is a chrome Sunbeam sticker. Use a pocket knife, slide it under the sticker and pry/peal it off. Then you will see a single screw that goes into the guts of the mixer. Unscrew it and remove the front of the mixer. You'll then see two screws that keep the top of the mixer on. Remove those and you can undo the top housing.
You take off the back of the mixer in a similar manner. Use a screwdriver to pry off the chrome cap on the back, then remove the single screw and the speed control will come off.
The gear box just above the blades is a potential area for the growling. It is pewter colored metal held in place by four screws. Clean out the old grease and replace with new (NOT oil, grease, like axle grease or lithium grease).
Use a toothbrush to get the old dust and flour off the innards of the machine. I also used a can of compressed air to blow it out and sprayed the electrical contacts of the motor with WD40.
Mine works like a champ now. Took about an hour.
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