Question about Hobart Food Mixers

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We have the Hobart a200 mixer I have changed the brass worm gear twice and it keeps on stripping. I bought them cheep on evil bay and was wondering if that would be why. Should I go to original?

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  • Master
  • 1,977 Answers

Cost a little more to go original but worth it.

Posted on Dec 23, 2016

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Posted on Jan 02, 2017

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ricardok45
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SOURCE: motor worm gear hobat a200

Harry, if you're confident that you can take it apart and repair it yourself, then do the following. Go to www.hobartservice.com website. Register, and when you've been admitted to the site find the discontinued products section on the left hand side of the page, click on it, then select the Food Machines Group, then select Mixers. Make sure that your ML# is covered by the document.Select the file numbered A-200 Parts List F-6728. pdf. Look for the ML#. Once you've selected the document, go to page #9, there you'll find the exploded drawings for the A 200 transmission parts. If you look at the whole document (15 pages), you should be able to see what needs to be taken apart to get at the worm gear.

If you're not sure you can do this...Then don't do it. But if you do, check all bearings, springs and gears for excessive wear and replace as necessary. Hobart techs do this stuff every day. For someone who has not done this kind of rebuilding before, it can be a long and expensive learning curve. Good luck. If you find that this solution has been helpfull to you, please rate it. ricardok45

Posted on Jan 05, 2009

  • 6 Answers

SOURCE: hobart A200 mixer motor worm gear

sometimes you read of other problems and solutions and it puts you at the edge of your seat. in this case of changing the worm gear on the A200F was cake. when you drop the lower end (3/4 acorn and jam nut), pull out yoke (speed select handle) the center transmision shaft and gears pull right out.worm gear easy to change at this point. if you can change a motor bearing, then you can do this job. Note: change seals and bearings as needed,check all gears,keys and spacers for wear and if you go the mile take gears off drive gears, these are the 2 smaller trans shafts put in lath if you have accsess to one if not roll shafts on flat surface to see that shafts have no bends in them. Also remember when you put the bottom back do not over tighten the jam nut,hold and lock acorn nut, should spin free and have about .016 to .030 movement up or down. Lay out all part on cardboard the way they came out. should go back together easy.

Harry Ooooooooooo

Posted on Jan 13, 2009

cactus bob
  • 267 Answers

SOURCE: Hobart A200 Worm Gear Shredding Brass Gear

no there are no adjustments . you must have bent the case just a little , i dont see any good news for you , sorry . i have worked on hobart mixers for years and you should get 5-10 years out of that gear

Posted on Jan 15, 2009

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Hobart 20QT guessing old a200 motor runs fine removed top cover to see but gears not working and mixer does not spin Any diagnosis Help greatly appreciated


The first vertical shaft has a brass gear that runs off the rotor. The ancient models had a spring loaded slip clutch built onto the gear. Upgrade it with a worm shaft kit which gives you a complete new shaft and fixed gears. I think it includes the upper and lower bearings. Maybe replace the grease if it has not been done. Or look for a sheared key on the worm shaft.

Feb 19, 2014 | Food Mixers

1 Answer

How to change hobart a200 motor bearings


Do not heat up you have to strip the gear box but not all take the top gears off but look what you are doing its got to go back the same way or it won't work you have to take the worm gear off and then you can take it out from the back but if you can't do it get in touch with **** at x bakery in Haywood and ill sort it for you hope this helps it is a big job sorry

Jan 06, 2013 | Hobart A200 Stand Mixer

1 Answer

Hobart a200 will run just fine without anything in the bowl, once I pour my ingredients into the bowl, it wouldn't even mix the ingredients. Try all 3 gears.


Short answer: something is worn/broken inside the mixer's transmission.

Longer answer:

Since none of the three gears operate, the problem is most likely on either the worm gear shaft (probably the brass worm gear itself) or the "transmission shaft" (ironic name as all three shafts could be called transmission shafts). If you're up to the task of disassembling the transmission, which is a very messy task, you'd probably find the problem on one of the two smaller shafts inside the transmission. You'll most likely find either a broken key or worn brass worm gear. Both of these items may have enough holding strength to operate under very light loads (such as an empty bowl) but slip once a load is presented.
Also check the planetary key. Remove the planetary by removing two nuts on the underside of the transmission, where the attachments attach (careful, as the whole thing will drop once the second, thin nut is removed). You will find a long key on the shaft (or in the planetary gear, whichever one it sticks to). Make sure it's not broken, and re-attach the planetary.

Aug 12, 2010 | Hobart A200 Stand Mixer

1 Answer

Hobart Mixer A200 buzzing. The motor not moving


Have you try to run the motor without engaing of worm gears? The worm gear 15T assembly need to remove in order for motor to run freely. check worm gear attach to motor shaft for any damaging.

Mar 24, 2010 | Hobart A200 Stand Mixer

1 Answer

Hobart A200 Worm Gear Shredding Brass Gear


no there are no adjustments . you must have bent the case just a little , i dont see any good news for you , sorry . i have worked on hobart mixers for years and you should get 5-10 years out of that gear

Jan 15, 2009 | Hobart A200 Stand Mixer

1 Answer

Hobart A200 mixer motor worm gear


sometimes you read of other problems and solutions and it puts you at the edge of your seat. in this case of changing the worm gear on the A200F was cake. when you drop the lower end (3/4 acorn and jam nut), pull out yoke (speed select handle) the center transmision shaft and gears pull right out.worm gear easy to change at this point. if you can change a motor bearing, then you can do this job. Note: change seals and bearings as needed,check all gears,keys and spacers for wear and if you go the mile take gears off drive gears, these are the 2 smaller trans shafts put in lath if you have accsess to one if not roll shafts on flat surface to see that shafts have no bends in them. Also remember when you put the bottom back do not over tighten the jam nut,hold and lock acorn nut, should spin free and have about .016 to .030 movement up or down. Lay out all part on cardboard the way they came out. should go back together easy.

Harry Ooooooooooo

Jan 09, 2009 | Hobart A200 Stand Mixer

1 Answer

Hobart A200 diagnosis


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

Nov 25, 2008 | Hobart A200 Stand Mixer

2 Answers

Hobart A200


When you say lag and catch up. This may not be a issue. I have seen this with dough and a spiral hooks on all sizes of Hobarts the hook and dough get in a position to push the hook forward and the drive gears catch back up the hook. in fist gear on the 20 quart this is common for sure. but its normal. if you have a real slip from a sheared key it will not take long to where you can hold the planetary shaft with your hand and stop it. another slip that might be possible is if your mixer has the first generation worm shaft gear Assembly. when it is worn out it will slip you. this is the shaft that drives directly off the motor. you can tell if it's first Gen by it has a large spring on it. the tow later versions are all keyed to the shaft no chance to slip unless a key shears.
Michael

Oct 24, 2008 | Hobart A200 Stand Mixer

1 Answer

Mixers eating brass gear driven by motor pinon


Thats called a sacraficial gear because its brass which is a soft metal.This gear takes most of the strain but i think either a spacer is missing or the gears arent meshing correctly.The transmission assembly the shaft next to it make sure all the spacers/washers are there.Goto hobartcorp.com you will find an exploded parts breakdown.

Aug 29, 2008 | Hobart A200 Stand Mixer

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