Working on a Hobart D340 Mixer. It will not hit third gear. So far I have replaced the shifter yoke, sleeve clutch, gear upper clutch, and gear lower clutch. It basically runs in first gear, occasionally speeding up for a split second. First and Second gear work normally. I don't have access to the service manual, so I am kind of scratching my head on this one.
I checked that gear by hand, but did not disassemble that shaft, so maybe it is sheared but tight, that would make sense of the speeding up off and on. This mixer is in use, so I can only have access to it for 2.5 to 3 hours, but that should give me enough time to do it with removing the grease. I thought I was really good with mixers, but this one slapped me silly.I checked that gear by hand, but did not disassemble that shaft, so maybe it is sheared but tight, that would make sense of the speeding up off and on. This mixer is in use, so I can only have access to it for 2.5 to 3 hours, but that should give me enough time to do it with removing the grease. I thought I was really good with mixers, but this one slapped me silly.
Did you ever figure out the problem? I'm having the same issue. Email me at [email protected]Did you ever figure out the problem? I'm having the same issue. Email me at [email protected]
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Jeff your almost there....it must be the shifter into third....it must not slide fully into third....check for wear marks on the worm gear....and try running it without the protective cover on to see how it changes from 1st, into 2nd, then third...that mechanisim if not engaging totally in third.
SDBARBAS - You might try using the very easy "Hobart" smartparts webapp on the Hobart website. Cut and paste this into your browser Address line: http://catserv1.itwfeg.com/Hobart-Root/items.cfm, which is the parts list and an exploded view of the assembly for: Planetary, Tumbler and Agitator Shaft Unit Assembly. Go to Item # 64, and select "Add". The screen will change to 'Parts Selected'. Increase Qty to 4, hit "Update Quantities" and then hit "Confirm Parts Selected". On the next screen, select "Find Service Office", and follow the instructions on that pop-up window. You should be able to find a Hobart Service Office in your area that can price out your 4 tumbler yoke and shifter pin assembly. Good Luck... I hope this is helpful.
The symptoms you are describing would lead me to believe that the shifter clutch sleeve (part # 70035-1) is worn out. There's a chance that the gear that engages the clutch is worn as well, but less likely. A significant amount of transmission disassembly is required to access and replace these particular parts. There are a lot of things that can go poorly if you don't pay attention to detail when disassembling/reassembeling the transmission of a D300 (ie clutch rollers and springs) On a brighter note, it's about a 90 minute job for a proficient technician, if everything goes his/her way. That money would be well spent.
This is common there is a key on the shifter shaft and when you removed it the key came out and is floating in the grease in the tranny ready to destory the gears. That are no longer available at Hobart. if you want the shifter /switch plate off, remove the pin in shifter and the handle thats all. Hobart has a special puller I have two of them but you can use a H type puller to get to the pull threaded holes Mixer should be upside down on head to repair trans.
the motor protection board is doing its job.you should only use 1st speed to mix pizza dough.im a hobart technician and service these mixers all the time.let me know
hi i work for hobart and these part numbers dont sound right.you have to make sure you have the ml number or spec number to get the correct parts.you can call your local hobart branch and they will help you further.
I checked that gear by hand, but did not disassemble that shaft, so maybe it is sheared but tight, that would make sense of the speeding up off and on. This mixer is in use, so I can only have access to it for 2.5 to 3 hours, but that should give me enough time to do it with removing the grease. I thought I was really good with mixers, but this one slapped me silly.
Did you ever figure out the problem? I'm having the same issue. Email me at [email protected]
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