My Hobart grinder is old vintage it has 3 or 4 oil ports do I still use Mobil DTE HM OIL? How much in each port?

Your'e good to go...Tip...keep the meat in a freezer for 30 minutes before grinding it. Apply olive oil in the interior parts of the unit to reduce the friction.

Service manuals

https://www.google.com/search?q=hobart+se+601+service+manual

OIL change!

https://www.google.com/search?q=hobart+se+601+service+gearbox

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https://www.webstaurantstore.com/999/food-grade-lubricants-and-food-safe-lubricants.html?vendor=Hobart

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.

The oil leeking into your bowl is old grease that has broken down into oil and is getting past your oil seal you need to take out all of your old grease and oil replace it with hi-temp grease or a good grade lithium grease and replace your agitor shaft oil seal

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.

You can put in a all purpose grease. I use MOBIL 1 Synthetic Grease (RED IN COLOR) and it works fine -- you will need 3 tubs of 16oz's each tub. The cost is 30.00 or so. Make sure to get all of the old grease out and pack around each of the trans and worm shafts with the grease, then pack around the MOTOR GEAR and then put all back together. While running it make sure you can see the grease and hear the noise of the mixer through the 2 caps that are FILL caps on the head of the mixer. ALSO, you will find that you will lose 1st gear IF you have tigtened down too much on the LOCK nut, SOOOO loosen in small increments until all 3 gears are perfect and strong. ALSO, the key to noise adjustment is to Tighten (WHILE MIXER IS RUNNING) slowly the large nut that controls pressure on the worm transmission. The general rule with tigtening this nut is to tighten it till it will not tighten and then back off the nut -- IF the unit when starting does not run or it seems bound up when you first turn it back on, THEN you have tightened it TOO MUCH, SOOO back it off again (loosen it) until it starts smoothly and when you turn the mixer OFF it should come to a slow stop and not abruptly stop the mixer. Hope this helps some of you out there trying to do your own adjustments --

the trans uses all grease today hobart uses mobil lith aw-2 you can get the seal from any hobart office.

man you got an oldie but goodie mixer!im a hobart service tech for 8 years and have only seen about two dozen,unfortuantly parts for these units are exhuasted.as for the sight glass they do become cloudy over time and you cant determine the oil level.use a heavy gear case oil.the only way of telling is to drain the oil or if the unit is loud you should probably cange the oil.