Question about Hobart A200 Stand Mixer

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Hobart A200 diagnosis

I'd really appreciate your input regarding an older A200 (#794389) that I have.  It is making a periodic noise that seems to coincide with the occasional clutch slip?  I assume it is the clutch slipping as the planetary motion speeds up momentarily before settling back down to normal speed.  All 3 speeds of the transmission function and the attachments are not hitting the bowl.  The machine has sat idle for quite some time so I was wondering if there is anything I can do (oil/grease) to refurbish it a little.  Here's a quick video of it:




Many thanks!

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  • cdnDough Nov 25, 2008

    Many thanks.  I think I may take the top cover off this weekend to access the internals.  A few more specific questions:
    - Is the noise in the video I linked, 'normal' for these machines?  It doesn't seem excessive to me but it has been 15 years since I worked in a kitchen.

    - How frequently should the transmission be repacked with grease?

  • cdnDough Nov 25, 2008

    Also, what is the easiest way to check the worm gear drive?  I removed the top case and tried to peer into the two ports... one is blocked by grease, the other by dried grease/grime.  I gather I'll need to pull the transmission gear unit to inspect the worm drive.  Looking at the exploded diagram (PL-6754) in the spec #3943 instruction manual, I'm looking for the presence of a worm (part no. m-12743) and spring / shock absorber (part no. v-12757).  For what it is worth, I certainly cannot make the planetary slip if I try and hold it so perhaps the skipping is the dough pushing.

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The first A-200's have a worm gear drive that will slip when old but also when mixing dough somtimes the dough will push the mixer aherad of its self and look like its slowing but its just catching up. if you have a old worm shaft it will have a spring on it is how to tell. it is replaced with a shaft that is all keyed and has no slip or give unless a key shears.
Michael

Posted on Nov 25, 2008

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Ogrin56,

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Hi, here is my opinion: 1) your planetary, or attachment hub is making the noise as it goes around, and there is grease in the gear ring that keeps it lubricated, it may be as simple as removing the planetary grease ring ( the chrome ring), and taking loose the bolt and lowering off the hub and cleaning the old grease, and installing new, reassemble in reverse. You may also have bad bearings in the shaft portion of the planetary ( the shaft your attachments go onto) allowing the shaft to "wobble" a little bit causing a slight misalignment as the smaller gear goes around while mixing. How far you want to go is up to you.
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1 Answer

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Check the planetary.this is the bottom part of the mixer where you attach the hook.
You will see two nuts; make sure their tight as the planetary may have moved down.
Also have a look below:
http://cgi.ebay.com/HOBART-A200-20-QUART-MIXER-SERVICE-PARTS-MANUAL_W0QQitemZ160203114233QQcmdZViewItem

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