Question about KitchenAid K5SS Heavy Duty Commercial Stand Mixer

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My worm gear is stripped

I have the replacement gear but I don't know how to take apart the assemply

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Download the service manual from Kitchenaid, or several other sites on the web. Just google your part number and the words "service manual" and you should find it. Some of the gears in the head are held in with pins though them, and you may not see it with the grease on it. You need to tap them out with the right size punch.

Posted on Jan 27, 2009

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Speed problems with kitchenaid artisan mixer.


It sounds like two issues, the first is going to be the phase board, you will need to replace it, that should fix your speed issue.

The second issue will be a stripped gear, in that mixer there is a nylon gear that commonly goes bad, that would be the worm gear.

Here is a link to the phase board: http://www.mendingshed.com/kaphaseboard.html
Here is a link to the worm gear:
http://www.mendingshed.com/kawormgear.html

Also here is a link to the service manual: http://ep.yimg.com/ty/cdn/mendingshed/kitchenaidservicemanual.pdf

The service manual will show you how to take apart the mixer, and put it back together.

Jan 31, 2014 | KitchenAid Food Mixers

1 Answer

Grinding Sound


It could be a different gear that is stripped in the mixer. There is also the chance that the gear that was sent you was damaged before it was put in, we do see chipped gears come from KitchenAid every once in a while. The best thing to do would be to take apart the mixer, clean the grease off the gears, and carefully inspect each one for chips or gouges in the gears.

Jan 23, 2014 | KitchenAid ProLine 600 Stand Mixer

1 Answer

Kitchenaid Mixer Planetary becomes sluggish when met with resistance.


The problem will be with the worm gear, if the gear is not stripped then check that the locating pin for the worm gear is not broken or missing. Occasionally the plastic gear can detach from the aluminium boss between plastic and shaft. The worm gear is the 99.9% place where drive can slip. Afterthought, I suppose the planetary pin is not missing or broken??

Jun 28, 2013 | KitchenAid KSM150PS Artisan Series Stand...

1 Answer

Mixer noisey and not going round freely


Your mixer most likely has a stripped gears, or a combination of stripped gears. The 5kpm5ewh is an international model similar to the ksm5. The gearing inside the mixer will be the same, some of the electrical parts may differ.
Your mixer has a nylon worm gear inside, this is the most common gear to strip inside the mixer. I would recommend opening the mixer and inspecting all of the gears before you place an order.

Most likely you will need the worm gear, which is available by itself (http://www.mendingshed.com/kawormgear.html) or you can get it in the whole worm drive pinion gear assembly (http://www.mendingshed.com/kitchenaidgearassy.html) the whole assembly is a lot easier to replace, and will save you a lot of time. You may also need to replace the grease inside your mixer, KitchenAid recommends the Benalene 930-2 food grade grease, it is only available in a 30oz can (http://www.mendingshed.com/kagrease.html) And you will also need to replace the gearbox gasket (http://www.mendingshed.com/mixergasket.html).
To aid you in your repair, here is a link to the KitchenAid service manual (http://lib.store.yahoo.net/lib/mendingshed/kitchenaidservicemanual.pdf) This will walk you through how to take apart the mixer, replace the gear, grease and gasket, and reassemble the mixer.
Thank you,
ColleenCustomer ServiceMendingShed.com800-339-9297

THE MENDING SHED, HELPING YOU GET THE JOB DONE SINCE 1971.

Apr 09, 2013 | KitchenAid Pro-Line Heavy Duty Lift Bowl...

1 Answer

Motor clicks every turn


The clicking is probably a small nick in one of the gears, even the smallest chip can cause alot of noise or make the mixer click. Is the beater shaft still turning when you have a load in the mixer (bowl is full)
Or is it just clicking?

If the beater stops turning it is going to be caused by stripped gears, however if it is just clicking this would indicate just a nick in the gear. Either way I would recommend opening the mixer and replacing the damaged gear/gears.

Your mixer is considered a 5 Quart Professional, which means it has the same parts as a KitchenAid 6 quart mixer. The first thing you will want to do is take the mixer apart and disassemble the gearing. You will want to clean off the gears with paper towels and wd-40. Carefully inspect each gear once clean and replace damaged gears.

In the professional mixers when a gear strips you need to replace the grease and housing gasket, this is because the gears are all metal and there may be metal shavings in the grease which could cause the gears to strip again.

The most common gear to go bad in the Professional series mixers is the Worm Follower Gear (9706529). Here is a link to that gear on our website: http://www.mendingshed.com/wormfollower.html

Also, here is a link to the service manual for the mixer, this will aid you in taking the mixer apart and putting it back together correctly. http://lib.store.yahoo.net/lib/mendingshed/kitchenaid6qtservicemanual.pdf

We are one of KitchenAid's largest service centers within the US, and all parts we sell are genuine KitchenAid products. All parts are available at our website, www.mendingshed.com

Thank you,

Colleen
Customer Service
MendingShed.com
800-339-9297

Apr 06, 2013 | KitchenAid New Professional 5.5 QT...

1 Answer

My stand mixer's motor runs but the blades don't turn to mix the food


Get a copy of the Repair Part List for your model at Kitchenaid.com
Download a Copy of the Kitchenaid Service manual.

http://www.kitchenaidparts.be/centers/servicemanual/mixer.pdf

The Worm Gear (12) teeth was stripped and needs to be replaced.
The whole Worm Gear Assembly can be purchased on eBay for under
$15.00

Aug 04, 2011 | KitchenAid K45SS Classic Stand Mixer

1 Answer

Beaters won't turn bowl still does turn


I just took mine apart for this same issue. What i found was the plastic beater drive gears have been stripped by the motor worm gear. I am currently looking for these parts to replace them.

Dec 28, 2010 | Sunbeam 2346 Heritage MixMaster Series...

1 Answer

The Kitchenaid mixer stops and the motor just whirls without moving the paddle. This happened today when I was making dough. I seemed like the load was too much for it, but I have made this recipe many...


Hi VILLAGEFS, I’m sorry to hear about your 12 year old KA mixer not working. From the symptoms described, your mixer has experienced a catastrophic transmission failure; “like a gear is stripped…” Your particular KA model has a plastic gear designed to fail instead of the whole mixer ‘going up in smoke’. With this ‘fail-safe’ gear stripped your electric motor continues to ‘whirl’, but the power is not being transferred to the planetary and agitator shaft.
The good news is that this can be fixed quite easily (OK, maybe with a little effort) by yourself, if you are a DITY type person, feel adventurous, and your mixer is not under warranty (which it is not). Make 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> then enter the visitor type “Consumer and enter the 6 character model number, in this case K45SSW, and then select the file under Parts List (1) K45SSWH0.pdf (341.41 KB) ( Still check to see it matches your mixer).
Although not providing step by step instructions, the Parts List manual provides an exploded view of the various component assemblies allowing you to see how the mixer all fits together. It is helpful for the disassembly, troubleshooting, and reassembly of your mixer.
Turn to pages 4 & 5, titled “Case, Gearing and Planetary Unit”, and locate Illus. No. 38, Worm Gear Bracket & Gear, including Illus. No. 8, Worm Gear. After clearing all the grease away, you will probably find the worm gear stripped. You can order a replacement part and install it yourself. Do not use the old grease as it will be contaminated with debris from the stripped gear and ‘gum up the works’ if you try to reuse it.
While you’ve got your mixer this far apart you can check for any other unseemly wear and tear on the on the other gears and components. Besides a replacement worm gear, and grease you might consider replacing the gasket, too. You should use a food-grade grease that you can order online (although I’ve seen automotive bearing grease used, too – your call).
As far as parts go, here are five potential vendors in no particular order: RepairClinic.com; mendingshed.com; searspartsdirect.com; partstore.com; and Grainger.com (for grease). Prices can vary widely between vendors, so do some comparison shopping.
Finally, here are some links to several excellent websites that detail the disassembling/greasing and reassembly of a KA Mixer.
Between these three websites and their excellent pictures and descriptions and your Parts List manual, you should now be able to completely disassemble, fix/replace your stripped worm gear, and reassemble your mixer.
If you feel this repair 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, I hope this helps. Howard, Burke, VA
If this solution was helpful, please rate it, thanks! – hslincoln

Jul 19, 2010 | KitchenAid K45SS Classic Stand Mixer

2 Answers

Just replaced the worm gear and cleaned out old grease adding clean new grease. Plugged the machine in and it will not run at all. The machine had been working but not well since I had stripped the worm...


Hi PEGNGEORGE. I can understand your frustration after getting all that work done for the gear and grease replacement just to find that it won’t run. Makes you want to scream. But before screaming, let's see what might be causing problems.
If your machine is not getting power to the motor, and you’re confident that the motor was not damaged by the stripped worm gear, which necessitated the replacement in the first place, then there are a few things that we can look at.
The easiest to check are the motor’s brushes. During your disassembly, did you remove either or both of the motor’s brushes (from the side of the mixer’s head)? If yes, then you need to check their alignment on the armatures’ commutator. The concave contact face should be resting completely on the comutator. If you've turned it 90 degrees too much, it wont' seat properly and you'll get no 'juice' to the electric motor so it won't start.
If the answer is no, and you said the mixer worked, but not well after the worm gear stripped, that would lead me to suspect the problem most likely will be with your speed control assembly.
Since you’ve already replaced the stripped worm gear, I imagine you have your mixer’s Parts List manual on hand, but if you don’t, you can download a PDF version from the KA website: http://www.kitchenaid.com/flash.cmd?/#/page/home.
Click on Customer Care>Locate Manuals & Guides> Enter the 6 character model number, in your case use K45SSW, and select the file listed under Parts List (1), K45SSWH0.pdf (341.41 KB). Check to ensure it matches your mixer model.
Turn to pages 6 & 7, titled: Motor And Control Parts, which provides an exploded view for the disassembly and reassembly of your mixer’s electrical components, along with all the parts. You’ll want to focus on Illus. No. 25, Control Plate Assembly.
First inspect around the control plate assembly to ensure all the wire connections are OK. It's possible a connection has come loose. Unfortunately the whole controller assembly is fabricated on a little PC board which was not meant to be 'home fixed', and my 'expertise' ends there. A local small appliance repair shop should be able to determine if the controller assembly is functioning properly or not, or you can just order replacement parts without the testing.
As far as parts go, here are four potential vendors in no particular order: RepairClinic.com; mendingshed.com; searspartsdirect.com; partstore.com. Prices for the same part can vary widely between vendors, so do your comparison shopping.
You may already know about the website links below when you replaced your worm gear, but it’s always good to keep these sites in your ‘toolbox’. Here are some links to several excellent websites that detail the disassembling/reassembly of a KA Mixer.
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.
Good luck and have fun. I hope this helps. Howard, Burke, VA
If this solution has helped you, please rate it, thanks! - hslincoln

Dec 14, 2009 | KitchenAid K45SS Classic Stand Mixer

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