Kubota L4740

Fastenough

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Oct 17, 2019
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Murray ky
Hi im new to the forum and also my Kubota tractor is new to me. I purchased the 4740 gst with 381 hrs on it and want to do the 400 hr service. When checking the hydraulic fluid level is the dip stick pushed completely in or to just where the rubber seal on the dip stick touches the housing? The rubber seal is close to an inch long and would make a big difference. Thanks for your time.
 

Roadworthy

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L2501 HST
Aug 17, 2019
1,649
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Benton City, WA
Re: Kubotal4740

An oil level is usually measured with the dipstick fully inserted. Be sure your FEL and three point are fully lowered to put their fluid back into the reservoir.
 

Fastenough

New member
Oct 17, 2019
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Murray ky
Re: Kubotal4740

Thank you for your reply. I've drained the hydraulic fluid from both drain plugs until not a drip remained, installed a new kubota filter. The lift arms are completely down and the FEL in the up position. The manual calls foe 11.4 gallon I've put 9 gallon and 1 quart and the level is at the top Mark on the stick pushed completely in. I've run it and shut it down and was check 30 minutes later. Appears all the fluid ( 2 plus gallon) don't drain or the manual is wrong. Ever heard of this?
 

eserv

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BX24, A1000 Kubota Generator
May 27, 2009
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Hardisty, Alberta
Re: Kubotal4740

Thank you for your reply. I've drained the hydraulic fluid from both drain plugs until not a drip remained, installed a new kubota filter. The lift arms are completely down and the FEL in the up position. The manual calls foe 11.4 gallon I've put 9 gallon and 1 quart and the level is at the top Mark on the stick pushed completely in. I've run it and shut it down and was check 30 minutes later. Appears all the fluid ( 2 plus gallon) don't drain or the manual is wrong. Ever heard of this?
Did you remove the drain plugs at the bottom of the two rear final drives?
 

Fastenough

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Oct 17, 2019
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Murray ky
Re: Kubotal4740

Yes i replaced the filter. I removed 2 drain plugs the rear plug between the rear wheels and the other plug about mid way of the tractor.
 

North Idaho Wolfman

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Re: Kubotal4740

Yes i replaced the filter. I removed 2 drain plugs the rear plug between the rear wheels and the other plug about mid way of the tractor.
So no, you didn't drain the final drives, that would be a reason for the difference.
 

Roadworthy

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L2501 HST
Aug 17, 2019
1,649
525
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Benton City, WA
Re: Kubotal4740

I just carefully reread the posts. I note you left the FEL in the up position. That would put its cylinders full of fluid. They should have been down to be sure the fluid was emptied from them. That may be the cause of your volume discrepancy.
 

Fastenough

New member
Oct 17, 2019
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Murray ky
Re: Kubotal4740

Sorry for the typo the fel was in the down position and the lift arms in the down position. As far as final drives as per the manual I removed both drain plugs shown for the GST. I will look this morning to see if there are 2 other plugs.
 
Last edited:

Fastenough

New member
Oct 17, 2019
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Murray ky
Re: Kubotal4740

Sure enough, there are 2 other small drain plugs at the final drives and looks like each one would hold about a gallon each. Note made thanks for the help.
 

LaMere906

New member

Equipment
L4740
Feb 16, 2021
2
0
1
U.P Eh
Re: Kubotal4740



So no, you didn't drain the final drives, that would be a reason for the difference.
I guess I am in same boat, I put 10 gallons in my L4740, I did the drain between the rear tires and mid way down tractor, so there's two more plugs some where's for mid drives?