Question about Hobart D300 Stand Mixer

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Problem with Hobart D300 Mixer - Hobart D300 Stand Mixer

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  • Anonymous Dec 11, 2008

    My Hobart D300 would not engage in the 3rd gear anymore, I cannot turn the lever to that position.
    Would you be willing to give me some info or a service manual. I am mechanically inclined so I could fix it if I now what to look for.

  • rtino80501 Dec 14, 2008

    Thank you for reply.
    No there is no noise. The mixer works great in 1st and 2nd gear. But cannot turn the lever into the 3rd gear. The speed(gears) have been changed on the fly, without turning off the mixer. Could this have done it?

  • rtino80501 Dec 15, 2008

    So is that why I cannot engage in the 3rd gear? Any info out there on how to take it apart and repair it? Also what kind of grease do I need to buy to lube it back after repair.

  • fsstates Jan 17, 2009

    Oil seal leaking at motor worm gear also at seal in front where meat grinder is attached. I would like to replace all seals while I have everything apart. need to know what kind of lubrucation to use & seal numbers or sizes



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If you shift these Hobart mixers on the fly, you will sheer a tooth or two or three, and it is done for. You will need to replace the gear with the missing teeth, which can be an expensive part. NEVER SHIFT ON THE FLY! The only mixer you can on the fly is a belt driven one, as they have internal clutch sheves. The N-50,10,12,20, 30 qt. mixers use gear grease, not 90/120w oil as I've seen in some mixers I have repaired.

Posted on Aug 06, 2009

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  • Master
  • 640 Answers

Sounds to me like the shifting yokes are locked up,or a broken shaft.Is there any noise?

Posted on Dec 13, 2008

  • anthony james
    anthony james Dec 14, 2008

    No doubt about it,changing gears without turning the mixer off will tear the teeth off the gear eventually.If you need help breaking down the mixer let me know.



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SOURCE: d300 hobart mixer

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Posted on Oct 23, 2008

bigg t
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Goto,create a username and then you will be able to find out what your looking for.I know that these mixers used oil when they where new but now changed to grease.Any ? let me know as im a hobart tech a repair these often.

Posted on Nov 22, 2009

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D 300 hobart mixer

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seems their website is not up and running at the momment sorry I Could be of any more assitance to you nice mixer by the way.

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