Grinding I was using the hobart mixer at work to attempt some french bread.  No one uses it except for mashed potatoes and ranch dressing.  The 4 pounds of dough i put it, and the unstable table it sits on caused it to inch forward and take a nose dive.  After we put it back on the table, the power comes on and it seems to work at full speed but there is a terrible grinding noise in the motor.  Please help, the bosses think i was negligent. albert

That is a $10k to $20k mixer, depending on where you buy it. I have used one of these. Unfortunately, grinding noises that result in the motor stopping can be fixed with a power disconnect.

Grinding noises = dry bearings, to seized bearings, to shredded or stripped gears. You need a Hobart Service Tech.

https://www.google.com/search?q=Hobart+Legacy+HL200

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Make sure it's unplugged, remove and inspect the carbon brushes one at a time under those black screws on the side. They are keyed with one corner of the square ground off so will only go in properly one way so eyes open when you take them out. If they are less than 10mm long replace them. Next would be look under the back cover for a broken wire to the black square speed control plate. Broken wires are only likely to be one of the bottom 2 on either side. Any more testing is going to require a multimeter.

Type not found at Kitchenaid. 5-Qt. Stainless Steel Bowl with Comfortable Handle

5-Qt. stainless steel bowl with comfortable handle offers enough capacity to mix dough for 9 dozen cookies, 4 loaves of bread or 7 pounds of mashed potatoes in a single batch. The bowl is also dishwasher-safe for quick and easy cleanup.

Take the cover off end off mixer and slide in and lock in with locking Nut simples

Sounds like the keys in the shifting sleeve may be sheared. The transmission will have to be disassembled and checked for broken parts. Check www.hobartservice.com for your local Hobart office.

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.

as long as there is leaks down the beater shaft, or grease drips from the drip ring on the planetary you should be ok. the grease needed for the a-200 series mixer is a -47you can get @ any hobart office. buy 2 quart cans ,use 1.5 cans, there is an absorbtion rate capacity chart on the web for all hobart mixers to see if you are overbatching the mixer. hope this helps,

more than likely you have an electrical problem,loose wire, bare wire.
check your cord then open up the back see if you have a bare wire or see if you can spot a black spot were it may have arked

What you replaced were the contacts on the overload,correct?These 'heaters' look like springs?If so you have other issues.I'm a hobart tech and repair these mixers often.Are you mixing pizza dough?