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Re: A200 Mixer/Medalist L120 Mixer by Hobart
Where is it leaking grease from?Im a hobart tech and service these mixers.When i go into work i will get you the part # for the grease.You would then have to contact your local hobart branch,tell them the part # and pick up the grease.
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be careful here as the grease used has to meet food quality requirements and is not car grease
it does not need to be full of grease , just enough to cover the teeth
go google and type in --hobart food mixer model a200 --and there may be a pdf version parts list or workshop manual
other than that there will be a contact number for your country or area where you can get advice
After viewing and listening to your video, my first guess would be bad bearing(s). The sound varies with the speed of the agitator, so the noise is at the speed of the transmission shaft or planetary area. These mixers use very common standard bearings. As such, they are available very reasonably from sources OTHER than Hobart. You will need to take the transmission apart in order to find and solve the problem. Study the parts manual in detail. It seems complicated, but once you understand it, it is logical. I highly recommend that you get a really good understanding of how it works and goes together before you start taking it apart though.
It's not oil in the A200, it's #2 weight grease. Although when it gets old enough it can break down far enough to basically become oil (either that or someone put oil in it previously). There are a number of answers written on fixya.com explaining how to disassemble the transmission and change the grease. Fill with 36 ounces #2 grease. FYI : disassembling the transmission and changing the grease is a very messy task and one can VERY easily reassemble the transmission incorrectly, so consider bringing the mixer to Hobart to have the job done.
Transmission has to be somewhat disassembled, grease removed, lower seal should be replaced and then grease added and reassembled. Not that easy to do. Check www.hobartservice.com for your local Hobart office.
You're right, it's broken down grease. The A200 doesn't have a rubber seal to prevent this from leaking, either. That's normally OK, when the grease in reasonable condition, but when it breaks down bad enough, you see what you're seeing. The grease needs to be changed which requires disassembly of the transmission. It's quite a job (and very messy) if you're not familiar with it, but if you're interested I know I've read (and may have written one) instructions on disassembling the transmission on this website. If you decide to do the job yourself, be sure to remove the attachment hub (comes out to the inside of the transmission) and clean the passage well.
There is no drain cause it's grease that is used. It needs to be removed manually and the 3 shafts need to be pulled to get all the grease out. If you are not mechaniclly minded best taking to a professional.
on a a200 there is no oil. this mixer requiers grease. if mixer is leaking oil it is because the grease is broken down .you have to pull tpo cover off mixer remove trans. parts clean out old grease clean all trans. parts reassemble put top cover back on .then make sure mixer runs in all 3-speeds before putting 1.5 cans of -47grease back in grease can be bought @any hobart office
If you have oil leaking from the attachment hub, the transmission grease has liquified. The transmission will need to be opened so the old lubricant can be removed, by scooping it out. There aren't any seals in the attachment hub, just two torrington needle bearings. The helical gears thrust the pinion gear onto a thrust bearing in the hub to create a seal. The hub has a return hole in it's casting for excess lube to return internally. It's possible the return hole is restricted. On the other hand, if the machine has been filled with oil, it will probably leak like a siv.
The new lube should be 35 OZ of mobil XPH 222,
Hobart part number is 103881-47 for 32OZ.
grease coming out the planitary on bottom normally means it needs taken apart completley cleaned out of old grease and new seal and newer stile spacer seal goes around with the O-ring on it. and factory grease. the noise impossble from here to tell.