Top 20 Hobart D300 Stand Mixer Questions & Answers

What did Hobart tell you ?

It doesn't really matter which wire goes to L1 L2 or L3. All that can happen is it will run in the wrong direction. If it does just interchange any 2 of the L1 to L3 connections and this will reverse the motor.

as far as the motor you swapped wires on motor switch two wires either two blacks or one black and white

Here's what you need to do first. Check and make sure the bottom nut on the agitator shaft or planetary shaft is tight (This is the part that the attachments afix to). NEXT, take off the lid exposing the top area. THEN tighten up the largest nut (TIGHTENING is in reverse! SO - TO tighten turn nut to the LEFT). When the nut is tight, then turn on the mixer in 1st gear. IF you still do not have 1st gear, then turn off unit and THEN loosen (By turning to the right) this nut by a 1/4 turn or so, then turn on mixer again -- check for 1st gear. If after loosening this nut to where there is no resistance at all and you still do not have 1st gear, then you may have a sheared KEY on one of the gears that controls 1st gear! Did you hear anything pop or break before this happened? Let me know.

I believe you are missing the correct model number but look at these models HERE and you may find what you are looking for, HERE Thanks John Tripp Appliance 911

Weird sound usually means something in the gear box. I found a copy of the manual which includes many exploded drawings; perhaps something in here might help: http://www.bakedeco.com/ebay/pdf/HobartD300.pdf

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If this is being used in a commercial setting (I presume it is as it's a D300) the first things I would check is1 outlet / breaker box /main electric panel2 Cable from outlet to mixer if the outlet is hot3 Timer Start Stop switch4 Motor capacitor5 Motor (this is ugly as it has a number of electric parts that could have gone bad)That's the best I can do without further clarification. How did you find it was dead? Did it die while it was in use? Did it make any strange noises? Did it smoke? Do you get any response at all when you turn it on? My first reaction if the cord and outlet are good then I would be looking to the On/Off Timer control switch. It is the most logical if the mixer has not had any other instances of smoking lagging struggling with mixes or advance warning of a problem. It is the most likely answer that a contact is not working. Press all switches and buttons to see if any feel stuck in place. It may be that you only need to open the switch panel and clean out the flour and other gunk. I hope this helps, if so let us know we love hearing from you about a good solution.

Best guess is that the gear for 3rd speed is seized together with it's brass bushing and the center, large transmission shaft. I don't recall which gear is for 3rd, but the transmission has two gears (2nd and 3rd speed) which have brass bushings in them. The brass bushing should spin freely on the center shaft (when in final position - sometimes they pull off the shaft tough, but spin freely when in final position, my opinion is that this is OK), and the gear should spin freely of the brass bushing.My guess is that the 3rd speed gear, being seized to the center shaft, cannot freely idle on the center shaft, which would result in being stuck in 3rd gear.

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.

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the start button is bad, and needs replaced.

Hello, I have a few diagrams here. Lets see if they work for you.

If you have any other questions I'll keep an eye in this page and we can sort it out.

Could be a problem with the start windings.or start switch.maybe a capacitor .on the older models the start switch sticks just needs freed up and contacts on start switch cleaned.

hobart.co.kr/manual_pdf//016.pdf
Parts manual above.

www.avondalequipment.com/wordpress/wp-content/uploads/.../d-300.pdf

Hi, I did look for a service and repair manual, this will have a schematic 4 sure... If these above are no help. perhaps contact Hobart and ask for a copy of a service manual, this has everything one needs to repair and service.

Hello Veelec,

As the machine is mixing dough it seems that it is getting sluggish. This is caused by the machine being over loaded. Although it is a 30 qt mixer that is for liquid filled capacity. I do not know what kind of dough you are mixing so I will give you a light to medium dough and then the heavy dough capacity. Also on this machine all dough should be mixed in speed 1 or low to keep from damaging the machine.

You will need to know the Absorption Rate (AR) of you dough, to find this you take the weight of the water divide the weight of the water and multiply by 100.

AR = Water Weight / Flour Weight x 100%

The higher the percent the higher the capacity the lower the percent the lower the capacity. Also the temperature of the water will have to be considered as the colder the water the harder the dough it is to mix the dough the batch should be reduced by 15% to 20% for water temperature between 65-75 degrees.

For a Light to Medium dough with a 60% AR the unit capacity is 45 pounds in first speed.
For a Heavy dough at 55% the units capacity is 30 pounds in first speed.

The above capacities are for bread doughs, if you are doing pizza dough, dough nut dough or wheat dough please post back to this thread and I will help you to find the capacities.

I hope that I have helped you with your problem and would like to thank you for using FixYa to find a solution to your problem.

change the hook to spiral. J hooks tend to have dough crawl up

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

Hello Rohan,

The best thing I can point you to is HobartCorp. website you will have to become a new member it is free. Once you have become a new member you will want to log into spec sheets, type the model number D300, at the bottom of the page that pops up it will show parts catalog this will give you a blowup of all the gears and how they go together. Putting one of these together is not easy you may need to find some one to help you.

I hope that this helps you in your venture and thank you for using FixYa.

Here is the link to become a new user:
https://feg.hobartcorp.com/CookieAuth.dll?GetLogon?curl=Z2FsalesZ2Fredirect.aspx&reason=2&formdir=2