Bear varimixer were we buy a stick bearing in planetary gear, both upper and lower portion

The housing has to be worn if the bearing has play. Try a little tape around the bearing, or some thin brass shim stock. Of course epoxy may be a solution, if applied around the i.d. of the bearing seat. A little shortning on the bearing will keep it from sticking to the epoxy.

The armature will not normally make a knocking noise, even on low speed it is turning at hundreds of revolutions per minute so you will only get a whirr not a knock. Most common knocking is the plastic fuse gear missing a tooth or two. That is the first gear driven directly from the end of the armature. What you should have done is break it down slowly while always keeping it together enough to run it with one component less each time. Remove planetary.....run it. Split gear case apart....run it. That sort of process will give you a clue where you need to be looking for the fault.

Once you're familiar with it, the A200 is OK to work on. Just pay close attention to the sequence in which the gears are removed and lay them out on a table in that sequence. You'd need to remove most of the gears from the center planetary shaft, which requires removal of the shift lever (right side, 4 screws). You shouldn't need to remove the planetary (lower end that holds the attachments and rotates). Eventually you'll be able to remove the smaller shafts as assemblies and replace the brass worm gear.

You'll want to scoop out the grease with brass shavings in it (replace all the grease to be thorough, especially if it has broken down and is very runny or very thick (the grease should be a little bit thinner than the consistency of peanut butter), spin the removed bearings by hand and listen for rough operation (particularly the smaller bearings on the upper end of the two small shafts (bearings in the upper bearing cover). Also check to see that the two brass bushings, which reside in two of the gears removed from the center planetary shaft, spin freely BOTH on the planetary shaft AND in the gear they reside in (if not, one of your speeds probably won't work).

For an experienced technician, the job would take approximately 1-1.5 hours unless the old grease is all cleaned out thoroughly to replace with all new grease (thorough cleaning requires the removal of planetary and planetary shaft), and thorough cleaning can be a time consuming process. Then you might get closer to 2.5 hours.

It is most likely a stripped gear. Here is a link to the parts manual which contains the listing of the gears and shows you how to split the gear case.

http://shared.whirlpoolcorp.com/assets/pdfs/literature/Repair%20Part%20List%20-%208212057.pdf

Remove the chrome ring with a screwdriver by prying it off carefully. This exposes 5 screws, however they can't be accessed on all models. Remove the pin (17) that goes through the planetary housing and the drive shaft, and carefully drive the planetary housing from the shaft to expose the screws. Then remove the two remaining screws and split the case to expose the gears. The worn gears will be obvious. Also check the bearings. Replace all affected parts. Remove all grease since metalic pieces will have contaminated it from any worn out gears. The grease is a special food grade grease which you can purchase along with the gears and bearings.

It is most likely a stripped gear and most likely the worm gear which is driven by the motor shaft. Here is a link to the parts manual which contains the listing of the gears and shows you how to split the gear case.

http://shared.whirlpoolcorp.com/assets/pdfs/literature/Repair%20Part%20List%20-%208212010.pdf

Remove the chrome ring with a screwdriver by prying it off carefully. This exposes 5 screws, however they can't be accessed on all models. Remove the pin (17) that goes through the planetary housing and the drive shaft, and carefully drive the planetary housing from the shaft to expose the screws. Then remove the two remaining screws and split the case to expose the gears. The worn gears will be obvious. Also check the bearings. Replace all affected parts. Remove all grease since gear pieces will have contaminated it from any worn out gears. The grease is a special food grade grease which you can purchase along with the gears and bearings.

The noise you are describing sounds like the noise associated with the pinion gear meshing with the ring gear in the planetary. Depending on the age of the unit, some noise is to be expected. The lubricant used in the planetary is different than that of the main transmission and is not visible without disassembly. Again, depending on age of the mixer, your planetary may have a small amount of oil and a pump to bathe the gears or just a generous amount of grease applied to the gears. The only way to properly inspect the planetary is to remove it. Depending on your luck, this may be 20 min job or several hours. It all depends on the ease of which the planetary releases from the main center shaft. Should you decide to tackle this job yourself let me know and we'll do our best to assist you. Several knowlegeable techs monitor this area of the site.

The parts breakdown is downloadable at our website at:

http://www.varimixer.com/?xhtml=xhtml/var/us/en/general/parts_manuals.html

Download the W30 "Complete Operations and Parts Manual"

Hobart mixers are NOT designed to change gears while operating. The Hobart planetary gears are like the transmission in your car but, without the clutch. Everytime you change gears while unit is running you are tearing up the brass spacers, gears & seals. Time to call a QUALIFIED service tech to come out & sell you another planetary or rebuild your old one, about $2K, Buy a Varimixer if you want to change gears while unit is running, they use belts. Another planetary premature failur cause, over loading the bowl. Batters & icings- 75% bowl capacity, Dough 65% bowl capacity.

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.
For your other problem, I have seen the brass clutch bearings stick on the main shaft in the transmission, causing the planetary to momentarily speed up, or to maintain a wrong speed ( 2nd or 3rd) when set to first, but that would require full disassembly of the transmission. Best left to someone who has done it before, but if your inclined, go for it, but get a part breakdown first, or take pics as you go. Hope at least some of that helps, and thank you.

Thats the center shaft and if it moves back and forth the lower bearing is bad or the shaft has cracked.You need to remove all 3 shaft assemblys. if you already removed the gears on the center shaft then you need to remove the shifting yoke---turn power off to machine then take the screws off the trim plate where you shift speeds,you might see a switch that sits up on the shifter cam,remove the screws and put switch aside,take the 4 allen screws off and pull on the shifter(it will come out).If you didnt already drain the oil do it before you mess with the shifter.after the shifter is out grab the upper left gear assy. and the gear assy. below it,rock both gear assy. and pull up,they will both come out(you might need some force)once out remove the remaining gears on the center shaft and remove the shifting yokes.you then need to remove the planetary (lower part of mixer)if not already done,then pull the shaft out from the bottom.any questions let me know.