20 Most Recent Hobart D300 Stand Mixer - Page 4 Questions & Answers

Your local Hobart office.
www.hobartservice.com Click on "Locate an Office" and enter your zip.

The place to get it would be, Hobart itself.
You will probably need to call their number as this is not considered a service item but they will have it. Simply because they use it for manufacturing their items.
Here are the number for the corporation

888-446-2278

937-332-3000

Here is the Website Link.
http://www.hobartcorp.com/

Hope this helps,
Happy New Year,
Mark

Is it a problem of the motor not starting, or does the motor start but does not mix?

If the motor starts, then you've either broken a gear or a key inside the transmission from overloading it, or stripped the brass worm gear (also in the transmission).

If the motor doesn't start, I'd say you probably burned out part of the motor starting circuit if the motor was overloaded severely enough to re-engage starting components.

Call 1.937.332.3000 and ask the operator for International Customer Service.

Could be a bunch of different things. Depending on how old the mixer is, brushes at the back of the motor. If the brass armature is worn down I have been told its too expensive to replace. They haven't used brushes in 25 years. There are a number of bearings that could be going bad. If the main bearings at the back housing or at the gearbox are badly worn, they may be letting the armature come in contact with the windings. If that is the case the motor will be really hot when running. One obvious question is do you have the proper lubricant and have enough of it? Remove the top cover then pop the inspection hole cover off with a screwdriver. The grease inside should be the consistency of heavy wheel bearing grease. If you had a slug of it on a tablespoon it would stay on it if you turned it upside down. It is a food safe grease available at Hobart parts stores. If the lubricant is thin like motor oil, it is totally worn out and is probably not lubing your bearings at all. One other thing to look at is capacitors. A capacitor looks like a large flashlight battery shaped black object with two wires running from one end of it. It is usually located behind the mixer bowl behind a plate held on by two screws. If your mixer has a "run" capacitor, it may be bad. Remove it and head for WW Graingers or such supply house. Get a capacitor of exactly the same voltage and microfarads. Hook it back up and give it a shot.
Back to the bearings. The main motor shaft should have no play at all if you try to wiggle the shaft up, down or sideways. If it does, the bearings are available at industrial supply houses and are not realy hard to replace if you go slow and have a lot of patience in taking things apart and keeping them in the proper order to reassemble.

www.hobartservice.com enter your zip in "locate an office" it will bring up your local Hobart office.

https://feg.hobartcorp.com/resourcecenter/Discontinued%20Product%20Documentation/F14797A_lk.pdf

click on link above, that should help.
good luck

This mixer's gearbox is definitely not made to operate that way, and it is inadvisable for you to try to do so. Noone will be able to tell you that information, as I can't imagine too many people in the world have ever tried to modify the gearbox in this method.

Thanks
Tim

Transmission uses #0 weight grease, best to get direct from Hobart (their grease is the correct weight and approved by U.S. FDA & USDA as safe for use in food equipment) but if you insist on not doing so, at least obtain an Extreme Pressure #0 grease and don't overpack the transmission, I believe it should have 35 oz. if memory serves right.

Uses a heavier grease for the planetary gear, use #2 weight. Don't need much, just a light coat on the planetary gear.

Bowl lift rails use medium weight oil, again use food grade oil supplied by Hobart.

They are mainly for removing seeds from fruits and vegetables.

Hi , I did some research and found nothing on repairing, but you can purchase new and refurbished ones. They may be able to tell if it can be repaired. Here is two Links: www.BigTray.com. They can and will solve your problem.BizRate.com/hobart also will give you a lot of information on this Mixer. I am glad I could be of help to you.
Sincerely,
Shastalaker7

sounds like you have a sheared key in one of the gears. which speed is it slipping in or is it all 3speeds

http://www.hobartservice.com/Parts/

Go to this page and click on Hobart Smartparts System. Select Food Machines, Floor Mixers, D300 and you will eventually find parts breakdowns.

A thermal overload is an option on the D300 and is self resetting. Assuming your machine is being operated at it's full rated voltage, you might have to cut down on the amount of dough you are mixing. If I recall correctly, the relay and overload is located in the base or behind the speed selector plate.

any hobart office in your area should be able to help you . they can even drop-ship the part right to your location

sounds like you sheared the key on the on the ptanetary to main shaft. remove planetary of mixer. you will see how main shaft is keyed to planetary. replace key reassemble , and you will be mixing agian, dont forget to vote, thanks, monomoy

if the mixer is a 3-phase unit, that mixer has no reverse speeds, all gears should turncounter-clockwise when mixer is on ,if a 3-phase unit try switching any 2 of the incomingline to to change direction

I have a D300 mixer and the 2nd gear kind of misses or just vibrates a little what is this?

Hi there,

Well there are some metal gears to make the mixer work in high speed and it seems that the gears are not working properly due to displacement or they might have worn out, so you need to replace them.

post further comments for more help or information ......

Good Luck!!

Thanks