Question about KitchenAid K5SS Heavy Duty Commercial Stand Mixer

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Trying to determine how to lubricate the gears?

There is a removable cap at the top of the unit that seems to be for lubricating. But its closed off on the inside of the hole. Not sure if Im suppose to stick something thru the closure or what. Can someone advise?

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Hi CONTACT_TOS. I’m not sure what removable cap you are referring to, unless you are referring to the two plastic caps with screwdriver indents on opposites sides of the head? Do not remove them. Those are Brush Holder Caps for access to the electric motor brushes. You do not want to remove them unless you are replacing the brushes.
Why do you want to add lubrication to your mixer? The internal gears of your mixer are factory packed with enough grease to last a 'lifetime'. Unless your mixer is quite old; greater than 10 years, you shouldn’t have to replace any transmission lubricant. Your mixer’s transmission lubricant (grease) does break down over time and usage into its components; basically oil and suspension additives, and sometimes your mixer might leak a little oil that has seeped beyond the transmission gasket and found its way out of the mixer. Gravity can be very insidious. But even then, if the amount of oil you find leaking is small and your mixer seems to be operating normally, you needn’t worry about the replacing the lost lubricant.
If you still wish to check or replace the lubricant, that’s OK, too. It never hurts to get under the ‘hood’ of your mixer and see how it all works. Before you get started though, it would be helpful to 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> and select “Consumer” for User Type, then enter the 6 character Model Number, in your case use KSM50P (Your K5SS mixer falls within this manual), and select the first file KSM50P.pdf (438.31 KB) listed under Parts List (4). (Check to verify this matches your mixer model.)
Turn to pages 4 & 5 titled: “Case, Gearing & Planetary Unit,” for the disassembly, troubleshooting, and reassembly of your mixer’s transmission gears, along with all the parts. It can get quite messy but be gratifying to diagnose and repair your mixer yourself.
Once apart you can check for any unseemly wear and tear on the gears, etc. You may also want to consider replacing all the grease, particularly if debris is suspended in it.
Besides any replacement grease you might consider replacing the gasket (Illus. No. 26), 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 some links to several excellent websites that detail the disassembling/greasing and 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 along with replacing the lubricant if you wish to.
Good luck and have fun. I hope this helps. Howard, Burke, VA
If this solution has helped you, please rate it. – hslincoln

Posted on May 04, 2010

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I understand that you are haveing a problem with you Kitchen Aid Mixer. The reason your mixer is not comming on at all is either the brushed or the speed switch.

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I understand you are wanting to give you Hobart D300 an Oil change.
Here are the steps you need to follow:

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Part 1. Oiling the model 12:
Anyone can do this part.

On the top of the motor are four places where oil should be applied.
Starting from the speed finder dial and working forward-

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Do not apply more oil than specified. It will get into the works where it shouldn't.

The following proceedures assume some mechanical ability. Read first to assess whether you are competent before starting.

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There are four screws that retain the gear cover. The lower right hand one also retains a wire. Remove the screws, and gently bend the wire so the cover can be removed. There is a gasket underneath. Take care not to break it, it's brittle.

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When disassembling, take a digital photo of every step and lay the removed components on a piece of cardboard in the removed sequence. These practices will become valuable during re-assembly.

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1 Answer

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1 Answer

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