Hobart D300 Stand Mixer - Answered Questions & Fixed issues


www.hobartservice.com click on "locate an office" and enter your zip.

Hobart D300... | Answered on May 05, 2016 | 264 views


A body shop (automotive) can get rid of the dings, but re-tinning is the trick.

You may consider purchasing a bowl. For example, I could get you a new 80qt bowl for under $500, and a 20qt for under $150.

What is your location? If I can help, let me know.

Hobart D300... | Answered on Jan 31, 2016 | 203 views


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.

Hobart D300... | Answered on Jan 01, 2016 | 184 views


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

Hobart D300... | Answered on Apr 06, 2016 | 271 views


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.

Hobart D300... | Answered on Sep 06, 2014 | 566 views


pack it full the grease seems to find a way to move a way from the gears after a while so you new grease and pack it in

Hobart D300... | Answered on Apr 26, 2015 | 16,374 views


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.

Hobart D300... | Answered on Aug 27, 2014 | 301 views


Hi. Go to hobartservice.com, register for free. This will allow you access to the parts files for your D300T mixer. Download them. When you begin your disassembly, take a photo of every piece that you remove, lay these pieces on a piece of cardboard or something suitable in the order that they were removed. This will help you greatly with your project. Good luck! ricardok45

Hobart D300... | Answered on Apr 13, 2014 | 781 views


You can put in a all purpose grease. I use MOBIL 1 Synthetic Grease (RED IN COLOR) and it works fine -- you will need 3 tubs of 16oz's each tub. The cost is 30.00 or so. Make sure to get all of the old grease out and pack around each of the trans and worm shafts with the grease, then pack around the MOTOR GEAR and then put all back together. While running it make sure you can see the grease and hear the noise of the mixer through the 2 caps that are FILL caps on the head of the mixer. ALSO, you will find that you will lose 1st gear IF you have tigtened down too much on the LOCK nut, SOOOO loosen in small increments until all 3 gears are perfect and strong. ALSO, the key to noise adjustment is to Tighten (WHILE MIXER IS RUNNING) slowly the large nut that controls pressure on the worm transmission. The general rule with tigtening this nut is to tighten it till it will not tighten and then back off the nut -- IF the unit when starting does not run or it seems bound up when you first turn it back on, THEN you have tightened it TOO MUCH, SOOO back it off again (loosen it) until it starts smoothly and when you turn the mixer OFF it should come to a slow stop and not abruptly stop the mixer. Hope this helps some of you out there trying to do your own adjustments --

Hobart D300... | Answered on Apr 13, 2014 | 1,559 views


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

Hobart D300... | Answered on Jan 24, 2014 | 93 views


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

Hobart D300... | Answered on Aug 17, 2017 | 468 views


i have a spare unit for dsale 1500.00 cdn

Hobart D300... | Answered on Dec 03, 2013 | 507 views


Parts manuals are available for viewing and free download at www.hobartservice.com

Hobart D300... | Answered on May 26, 2013 | 1,361 views


Depending how old the mixer is they used to use oil,now they use grease.Regardless it sounds like a seal is worn.Where is it leaking from?

Hobart D300... | Answered on Mar 04, 2013 | 1,075 views


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

Hobart D300... | Answered on Dec 18, 2012 | 80 views


If this is being used in a commercial setting (I presume it is as it's a D300) the first things I would check is


1 outlet / breaker box /main electric panel
2 Cable from outlet to mixer if the outlet is hot
3 Timer Start Stop switch
4 Motor capacitor
5 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.

Hobart D300... | Answered on Sep 20, 2012 | 115 views


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Hobart D300... | Answered on Sep 13, 2011 | 185 views


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.

Hobart D300... | Answered on Sep 13, 2011 | 376 views


the start button is bad, and needs replaced.

Hobart D300... | Answered on Jul 08, 2011 | 87 views


Hello, I have a few diagrams here. Lets see if they work for you. zim1308_8.jpgzim1308_7.jpgzim1308_6.jpgzim1308_5.jpg

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

Hobart D300... | Answered on Jun 15, 2011 | 111 views

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