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Kubota G4200 3spd transmission oil


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#1 chopper698 OFFLINE  

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Posted February 25, 2017 - 10:05 AM

Just picked up a kubota G4200 and I'm changing all the fluids on it. It's a 3spd with reverse gear box. I noticed it has 2 drain plugs one on the gear box and one at the rear end. Are these two seperate units?

#2 Cvans ONLINE  

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Posted February 25, 2017 - 11:07 AM

I have one of those setting out here but I can't remember how they are tied together. I believe your correct though. Drain the differential first then the transmission. If nothing comes out of the the transmission then you know it is one unit unless the tranny was low to begin with. 


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#3 chopper698 OFFLINE  

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Posted February 25, 2017 - 09:43 PM

Right now I have them both drained and I filled the gear box with mineral spirits and it took 2 gallons. So Im thinking it's one unit and not seperate from each other.

#4 Cvans ONLINE  

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Posted February 25, 2017 - 09:57 PM

If you loosen the drain on on the differential and mineral spirits comes out you will know your right. 



#5 chopper698 OFFLINE  

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Posted February 25, 2017 - 10:32 PM

Yes that's what I'm thinking. The oil that came out of there was yellow and it didn't smell like gear oil. The manual says nothing about gear oil only hydrostatic oil.
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#6 chopper698 OFFLINE  

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Posted February 28, 2017 - 05:22 PM

Does anyone know what type of oil to use in the G4200 3spd transmission?

#7 Cvans ONLINE  

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Posted February 28, 2017 - 05:32 PM

I'll look and see if I have the service manual and get back to you this evening.



#8 chopper698 OFFLINE  

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Posted February 28, 2017 - 09:08 PM

Thanks!

#9 Cvans ONLINE  

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Posted March 01, 2017 - 12:42 AM

Spent 3 hours out there welding this evening and didn't look. :(  I'm putting up a note right now and will get back to you tomorrow before noon. 



#10 chopper698 OFFLINE  

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Posted March 01, 2017 - 07:16 AM

Ok no problem, thanks.

#11 Cvans ONLINE  

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Posted March 01, 2017 - 01:20 PM

The book says, " Hydrostatic transmission fluid".

 

IMG_0442.JPG



#12 chopper698 OFFLINE  

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Posted March 02, 2017 - 05:30 AM

Why would they put hydrostatic fluid in a gear box and not a gear oil?

#13 chopper698 OFFLINE  

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Posted March 02, 2017 - 05:35 AM

Thanks for getting that. I noticed there's a spot on my gear box for a filter. I'm guessing it's for a hydraulic pump accessorie.

#14 Cvans ONLINE  

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Posted March 02, 2017 - 05:46 PM

Why would they put hydrostatic fluid in a gear box and not a gear oil?

 

This is not that uncommon. I think most tractors now come with what is known as "Universal Hy-tran oil". It can be used in hydraulic systems and gear drives. Many tractors have the hydraulic pumps built into the final drive systems so using one lubricant for both makes sense. Also in cold climates the hydraulic oil should stay thinner so parts stay lubricated. 

Clear back in the 80's I had a Dodge Omni that use Automatic transmission oil in its manual transmission. Worked just fine for 140,000 miles. 


Edited by Cvans, March 02, 2017 - 05:48 PM.


#15 chopper698 OFFLINE  

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Posted March 02, 2017 - 07:24 PM

Ok thanks for the info!




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