Question about Hobart D340-6009 Mixer

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Will only stay running if you hold the "on" button down

When you hold the "on" button down the coil pulls the contacts down and the mixer runs, but when you let go of the "on" button the contacts separate and the mixer stops. The switch and timer are new and working. I have tried to find a wiring diagram to no avail. Is there a circuit or relay that holds the contacts down?

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Look in the bottom back of the pedestal,you will see a cover,remove the cover a contactor start switch and relay will be in there.I suspect the relay is bad,if you dont see a relay its a older unit.What is the ml #? You can find it on the data plate on the b ack.

Posted on Feb 17, 2009

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I have a Uniworld UPM-20E commercial mixer. I bought used from another baker and it was working when I bought it.


Electric devices get damaged sometimes by internal corrosion even if you don't use them. If you have the technical knowledge, take apart the control board or control panel, probably you've got some contact problem. you might be able repair it by cleaning or maybe you might need some part to replace.
If you don't have real knowledge repairing this kind of an appliance, my best advice: take it to a repair service.
Some time ago I tried to do a similar job with my home mixer and had to take pieces in a shoebox to a repair service ; I took it apart, cleaned contacts bur couldn't assemble it againbecause after taking it apat, couldn't assemble it again

Aug 20, 2015 | Uniworld UPM-20E 20QT Commercial Planetary...

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How doI fix mixer that leaks oil out beater holes


There ate two ways to fix this problem, but first there is the matter of understanding what is leaking. The oil you see leaking is actually a food safe vegetable based gear grease. The grease separates during heavy use (years of service) or when the mixer has not been used for an extended period of time. (months or years) The recommended way to fix the problem is to do a full tear down then clean then add new grease and a new gasket, cost (By Kitchenaid at a KA service center) around $140.00 US + or -, It involves shipping and around ten days in time. The second way is kinda simple and does not cost anything. Get a towel, thick and soft to protect your finish, get your wife or husband, get an extension cord, spread the towel out on an open counter top, plug the extension cord into the outlet, turn the mixer upside down on the towel, have your significant other hold the mixer by the base while you plug the mixer cord into the extension cord, turn on the mixer no more than 2 or the second click on the speed control switch / lever, hold the mixer upside down like this while the mixer is running and keep it running for at least three (3) minutes, turn the mixer off and turn it right side up and turn on again for two minutes, then do it again two or three more times, upside down for a couple minutes then back right side up and so on and so on, after about 15 minutes stop. put everything away, you are done. What you have effectively done is re-mix the grease and it should be good for another couple of years. When it starts to leak again re-mix again. Or send it to KA for the rare and unique opportunity to spend a hundred bucks that you don't' want. hope this helps. By the way if you get some drops in your mix it will not hurt anybody. But you do not want to eat a great deal of it or you will require the use of a laxative afterwards.

Jun 18, 2014 | KitchenAid 32685 Mixer

1 Answer

My mixer seems to leak once in a while a light tan colour liquid from where you put the mixers in the round chrome ring around that on the inside.


Your mixer has a vegetable based lubricating grease in it, that grease can separate from time to time. One way is non use the other way is end of life from normal use.

If you do not use your mixer regularly, get a towel and put it on the counter, get your mixer and turn it upside down on the towel (to protect the finish) turn the mixer on while holding up the mixer (balance it) run the mixer for 2 minutes on speed 6, shut it off and turn the mixer rite side up and turn on again for 2 minutes, then repeat the process at least once. If your mixer continues to leak your lubricant is at end of life and it needs to be replaced along with a new motor housing gasket. KA will service it for you for about $100 dollars, you can do it yourself but it requires a full tear down of the mixer, you may have an "after warranty" service tech in your area but you will have to look for small appliance repair shops. If you do it yourself it will cost you about $20.00 bucks and a roll of paper towels as it is really messy. There are videos on utube that will show you how. The process I described above is a simple re-mix of your existing grease and in at least 60% of mixers I have repaired this is the problem with leaky oil / grease, it will last two or three years before it starts to leak again, longer if you do not use your mixer much, The grease is food safe and will not hurt you or anybody that may eat a recipe that might have a drop in it. But yes; I know it isn't really appealing to have grease dripping in your cooking. So the first thing to do is try and remix your existing grease, then try baking with it, if the drip has stopped your OK for a few years. If not you need to re-pack the grease and change the gasket.


Also the existing gasket is fiber and when the machine is put together the screws that hold the upper and lower motor housing parts together is not torqued down very hard (that is intentional on KA's part), the weight of the upper motor housing is about ten pounds and after years of having the mixer sit on top of the gasket it compresses and allows the grease liquid, (once it separates), to leak out and to get all over the place.


If you do decide to take your mixer apart you might try to just tighten up the screws that hold the two pieces together and try the re-mix process, that solution works on about 20% of all mixers I have repaired. Do this if you don't want to spend the 20 bucks on parts and grease. Let us know if this helped.

Mar 17, 2013 | KitchenAid K45SS Classic Stand Mixer

1 Answer

My kitchenaid mixer run on high at all times


If your mixer only runs on high speed there are 3 things that can cause that. The first thing to check will be the speed control plate, Remove the trim and end cover on the mixer, the first thing you should see is the speed control plate, this has 3 screws on it, try adjusting the top two screws 1/4 turn, this should slow the mixer down, do not over tighten. Also check to see if the control plate spring is unhooked. If the spring is unhooked, attach to bottom of the control plate, and squeeze the spring end.
If this does not fix your mixer, check the wiring of the mixer, you can locate a wiring diagram on the last page of the service manual.
If the speed control plate is adjusted correctly and all the wiring is correct it will be your speed control phase board. You can test the speed control phase board to see if it is shorted. With the line cord disconnected, pull the t-b ar contacts to open, and insert a piece of paper between them so they cannot close. Reapply power-the mixer should just run or buzz trying to run. If it operates at full speed, teh phase control board is defective and needs to be replaced.
Here is a link to the service manual: http://lib.store.yahoo.net/lib/mendingshed/kitchenaidservicemanual.pdf
This will aid you in taking the mixer apart, troubleshooting and putting it back together, remember the wiring diagram is the very last page.
Thank you,
Colleen
Customer Service
MendingShed.com
800-339-9297

Jan 07, 2013 | KitchenAid K5SS Mixer Speed Control Plate...

1 Answer

Laid down kitchen aid mixer for a couple of hours leaked a little oil


Your mixer has a vegetable based lubricating grease in it, that grease can separate from time to time. One way is non use the other way is end of life from normal use.

If you do not use your mixer regularly, get a towel and put it on the counter, get your mixer and turn it upside down on the towel (to protect the finish) turn the mixer on while holding up the mixer (balance it) run the mixer for 2 minutes on speed 6, shut it off and turn the mixer rite side up and turn on again for 2 minutes, then repeat the process at least once. If your mixer continues to leak your lubricant is at end of life and it needs to be replaced along with a new motor housing gasket. KA will service it for you for about $100 dollars, you can do it yourself but it requires a full tear down of the mixer, you may have an "after warranty" service tech in your area but you will have to look for small appliance repair shops. If you do it yourself it will cost you about $20.00 bucks and a roll of paper towels as it is really messy. There are videos on utube that will show you how. The process I described above is a simple re-mix of your existing grease and in at least 60% of mixers I have repaired this is the problem with leaky oil / grease, it will last two or three years before it starts to leak again, longer if you do not use your mixer much, The grease is food safe and will not hurt you or anybody that may eat a recipe that might have a drop in it. But yes; I know it isn't really appealing to have grease dripping in your cooking. So the first thing to do is try and remix your existing grease, then try baking with it, if the drip has stopped your OK for a few years. If not you need to re-pack the grease and change the gasket.


Also the existing gasket is fiber and when the machine is put together the screws that hold the upper and lower motor housing parts together is not torqued down very hard (that is intentional on KA's part), the weight of the upper motor housing is about ten pounds and after years of having the mixer sit on top of the gasket it compresses and allows the grease liquid, (once it separates), to leak out and to get all over the place.


If you do decide to take your mixer apart you might try to just tighten up the screws that hold the two pieces together and try the re-mix process, that solution works on about 20% of all mixers I have repaired. Do this if you don't want to spend the 20 bucks on parts and grease. Let us know if this helped.

Oct 19, 2012 | KitchenAid K45SS Classic Stand Mixer

1 Answer

Mixer motor quit.


I think that the motor is still fine. Get a Copy of the Repair Part List from Kitchenaid.com.
First thing I would do is to check the two Motor Brushes (one on each
side of the Motor Housing). Make sure they are not worn out, and when
inserted, they must both make contact with the Motor Coils. If even
one of them is not in contact with the coils, the motor will not run.
You can also remove the Motor Housing and visually verify that they
are touching the Coils.

Jul 31, 2011 | KitchenAid K45SS Classic Stand Mixer

1 Answer

Have to hold start button in for mixer to run


the start button is bad, and needs replaced.

Jul 08, 2011 | Hobart D300 Stand Mixer

1 Answer

What are black screws on the side of the mixer


Those are the two Motor carbon Brushes. Without them, the motor
would not run at all. Sooner or later, they will become so worn out
that the mixer will stop running. And when it does, don't be alarmed.
You simply purchase new ones for it. To see what they look like,
Go on Ebay & search for Kitchenaid Motor Brush*. They are keyed so
there is only one proper way to insert them into the motor housing.
If either or both brushes do not make contact with the motor coils,
the motor will not run.

Jul 03, 2011 | KitchenAid KSM150PS Artisan Series Stand...

1 Answer

My KSM150PSS Kitchen Aid started leaking a brown oily substance from under the large metal ring that surrounds the rotating part that holds the beater "peg." What is going on? Can it be fixed?


Kitchenaid says to run it on high speed long enough for it to warm up well, then turn it upside down- I'd leave it upside down overnight.
The grease in the gearbox, over time, will separate into oil and heavier grease- mixing them together again and letting them run back to the top of the gearbox should take care of it.

If not, come on back and we'll go through the whole disassembly procedure.

lp

Dec 29, 2010 | KitchenAid KSM150PS Artisan Series Stand...

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