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Steve I dont know that that is necessary. I have 2 a big heavy monster and a little #12 and I check for full and keep going. I only use mine in winter for sausage and its 50# in 120 sec. not much wear and tear on the lube. I know Hobart has a good web and mobile service here. Mine are Old and I'm guessing yours are too. http://www.hobartcorp.com/
To lube the planetary you take off the drip ring and knock out the pin that retains the planetary to lube the planetary gear. If you want to do the gearbox you need to continue and split the gear cases. Back cover off and 9 case screws. That's it, you are in where all the grease is.
The planetary gear housing is filled with grease. Seeing oil come out would indicate that grease has started to or has completely broken down. Take the planetary apart (One nut and a clip), clean out the old grease and liberally repack with a food grade grease something like PTFE Super Lube .
I understand that you are having a problem with you 5 quart commercial mixer by hobart. The 1 and 2 are the same speed and you are not getting 3. You also would like to know what oil to use in your machine and how to fill the unit.
To answer you speed question first. The speed is adjusted by the bolt located in the middle of the planetary (the part that turns underneath of the head the attachments hook to). If this bolt is tightened all the way up or to lose it will not allow you to achieve all of the speeds. You will have to adjust this screw many times and turn the machine on to check you speeds. Eventually you will achieve all three speeds.
Before I answer how you lube the machine you need to know what kind of lube to use. The gear box uses a 90 weight gear oil and the planetary uses 140 weight gear oil (grease).
Lubing the gear box with top cover:
1. Remove the top of the gear box (the cover)
2. There is a Round plate with three bolts (do not remove) in this plate there is a disc (looks like a cap seal) use a small screw driver to pry this disc out carefully you will have to put it back once you are done lubing the unit.
Lubing with out a top cover:
1. Remove the switch and gear selector (remember position of gear selector)
2. Fill thru whole in side behind plate removed
Lubing planitary:
1. Remove drip ring
2. Remove the planetary (unscrew bolt in middle)
3. Remove key located in the side of shaft
4. Lube and put back together
I read thru the owners manual for this unit and there is no recommendations for internal service. no reference to lubrication except for keeping the outside free from flour caking up on the moving parts. I have one of these and have seen the inside, they are built like tanks, you should be fine. i would recommend letting it run for a while on low speed to speed the lube around the internal parts, nothing more should be needed. Just make sure it doesnt sound as if the motor is laboring on low speed, this would indicate that internal lube is necessary. I think it will be fine...Worm1855
It uses grease which breaks down over time. The transmission has to opened up and all of the old lube removed and replaced with fresh lube and the bottom seal replaced. Contact your local Hobart office. www.hobartservice.com to locate your local 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.
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