Broken gear When making bread dough the mixer dough hook jammed. now the mixer makes a terrible racket when used and will not mix heavy loads, ie dough.

Push the head down before pressing the button on the mystery mixer. There is probably dough under the hook with it pressing the head up and is locking the catch.

You can pull out the dough around the dough hook to make it easier.

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In the mixer there is a worm drive gear, it is a fail safe so that you don't burn up your motor in just this insatance. the gear is nylon and when the machine is torqued too much the gear is designed to give out or strip. It is making a terrilble racket because all those chewed up teeth are now being milled and ground up while you are trying to use your mixer. STOP!!! the part costs about $8.00 USD and takes about two hours to fix. You should put a new gasget in but a lot of people dont want to spend the extra $6.00 buck because you have to buy new grease for this fix also, about $25.00 more. You must clean out all the old gear grease to make sure all the chewed up gear teeth atre out of the machine, then repair with new worm gear part and then re-pack with grease and add the new gasket and close up the machine all fixed. about 3 hours time $50.00 and a roll or two of paper towels. (The grease is real messy)

The blade sounds like it's jammed somehow perhaps simply with some food matter.
Ensure the mixer is not plugged in then try removing the bowl, locking the mixer in the down position and pushing up hard on the blade to try and dislodge it. If it comes free and lifts up then try wiggling and rotating it normally off the mount.
Sometimes with use the attachments can become slightly warped requiring more force to lift them before rotating off the mount.
I once used my own Kitchen Aid mixer with the dough hook attachment to make a whole wheat bread dough. When I was done the hook was a bit bent from the hearty dough. There was also some flour in the mount causing it to jam. Removing the hook attachment proved difficult but not imposable.
Good luck.

The Hobart H600 is a 2 horse power, 60 quart mixer, it can be used for many things in the kitchen. It can be used to make about any kind of food that needs mixed, wiped or kneaded. It works well in a pizzeria for all facets of making pizza from the dough, to shredding the cheese with an attachment, to a restaurant that makes mashed potatoes and fresh bread, to a full service bakery.
However, the biggest thing that you need to know is the capacity of the machine. As overloading the machine can cause damage that may be costly and take a technician to fix. I do not know what attachments you currently have so I will go over a few of them.

The main attachments are a Wire whip, Flat beater, and Dough hook. There are three different types a "D" wire whip (has many wires and is evenly spaced) this is used to whip egg whites, whipping whip cream, etc. The "C Wing" (has six tines in it) is used for items that are heavy for the D wire whip, like whipping potatoes or icing. The last is the "I" whip is similar to the D wire whip just with less tines. The flat beater is used to mashing or mixing examples are mashed potatoes before they are whipped, cake mixes that do not require whipping, batters and icing. The Dough hook is used for kneading dough examples are pizza dough, bread dough, etc.

The biggest thing when using your mixer is to know its capacity for the material that you are mixing. All though this is one of the bigger machines it still has limits. You should refer to this the following link for the capacity of your machine: https://my.hobartcorp.com/resourcecenter/ProductDocumentation/F-7701.pdf

There are also a few attachments that can be put on to the No. 12 attachment hub. A few of these are a vegetable slicer-grater and meat grinder.

Your mixer may still be good, let it cool down and then check it out, If it runs OK then there is no problem. The motor in your mixer probably over heated from trying to mix bread dough which will make any mixer work hard. These mixers will get warm when over worked but unless heavy smoke was coming out and you were getting a burning enamel smell it is probably OK. Let it cool and try it but I suggest you not use it for bread any more.

Several things:

The Professional 600 has a metal gear housing with a metal gearing. Because of this, the Professional 600 will generally run louder than other stand mixers that may have a nylon/metal mesh gearing.

How long is the bread dough being mixed for? Kitchenaid stand mixers must be used on speed 2 for bread doughs, using the spiral shaped dough hook, and mixing for no longer than 7 minutes.

If the flat beater is getting caught on the bottom of the bowl, pleasure assure the bowl is being seated correctly. You will place the bowl on the mixer arms on the left and right hand side. You will also want to take your fingers along the back of the bowl, where it butts up against the base of the mixer, and press downward. You will hear an audible click as the bowl falls into a spring latch and allows the bowl to sit flush and secure. If this is not being done, the flat beater may strike the bottom of the bowl.

If this was not the cause of the problem, please consult your Use and Care Guide about the beater to bowl adjustment. This is an easy adjustment made with a flat head screwdriver that can quickly correct the problem of a flat beater hitting the bottom of the bowl.

The mixer motor has probably overheated, as proper use and care was not being followed with the stand mixer.

Bread doughs are recommended to be mixed on speed 2 only and never for longer than 7 minutes. With the resistance of a bread dough that is provided against the beater, mixing for over 7 minutes may overheat mixer and cause smoking.

Please consult your use and care guide to refresh your memory about how to properly use your mixer for making bread doughs.

This is not a solution but I think you have a serious problem you might have sheared some gear teeth whent the mixer jammed and it only manifests itself under a heavy load, I would take it to a repair guy, those mixers are expensive and it would be worth it.

Hi Susan. There is no worse feeling than the feeling you get when you find that you've been seperated from your hard-earned money by a company that markets a product with glowing phrases of what their product can do...And then doesn't deliver on it's promises. Kitchenaid mixers can make short work of bread dough NOT! My Kitchenaid HD Pro (475 watts) self destructed after only 30 uses of making my Sourdough Bread. The problem? A cheap piece of plastic that takes the stresses of two important shafts in the mixer. Cheap, shoddy parts in a mixer you paid top dollar for. Kitchenaid shows no shame in doing so.

What is happening with your mixer as it tries to mix your dough is that the head unit is thrust back and forth and side to side (bucking). Eventually hinges become loose and sloppy. Kitchenaid's behaviour is legal and beyond reproach, so make your next mixer purchase an informed one.

Goto www.consumeraffairs.com and do a search for your Kitchenaid model. You'll notice that you're not alone in your mixer troubles.

I solved my mixer problems by buying a used Hobart 20qt. Commercial mixer (A200) and rebuilt it. When mixing heavy dough you should only use about 60% of the bowl capacity. less, if your mixer is agonizing with the amount of food in the bowl..

You will be able to replace the thumb screw. Be prepared to wait for at least a month for the part to arrive once ordered.

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

You probably have stripped the gear in the head section. It can be replaced, but I would consider this a advanced repair since you need to push steel pins out of the shafts to replace the gears. Use google to find a local repair shop, or fix it yourself if your mechanically inclined, parts are available online (and not that expensive).