Kubota B2601, boat hauler - Page 2 - MyTractorForum.com - The Friendliest Tractor Forum and Best Place for Tractor Information
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post #16 of 24 Old 11-13-2018, 01:48 PM
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Re: Kubota B2601, boat hauler

Also, I see in one of your pictures that at times the tractor is in deeper water. It looks like the clutch and throw-out bearing are submerged. I've never done it but have heard that splitting a tractor to replace the throw-out bearing is one of those life changing events. I think I would worry more about that than the front axle. There's no way to know about the bearing until it starts squalling. I hope this saves you from trouble down the road.

I am assuming your tractor has a regular transmission with a clutch like mine. Of course if it is a hydro transmission maybe my concern is not appropriate. On the other hand, water could cause problems with that too. Bottom line is it might not be to a good idea to submerge your nice tractor like that.

I like your pictures!

Last edited by Square Dude; 11-13-2018 at 01:59 PM.
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post #17 of 24 Old 11-14-2018, 07:21 PM Thread Starter
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Re: Kubota B2601, boat hauler

Hi Square Dude,

My Kubota B2601 is Hydrostatic so I don't have a clutch, that I know of. That picture where the tractor is in quite deep was from last year, and I have not been in that deep since, and hope not to have to. I have found different locations in the lake are better for launching the boat (quicker drop off), as well I now use liquid roller on the trailer bunks, the boat moves much easier and requires less water for launch and retrieval. We used to use a trolley and winch for the boat, but I did not like it on the coastline, so the tractor now launches the boat and sea doos and helps with dock removal and the like.

I will be checking all lube points over in the spring with information from this forum, however I hope to continue to launch the boat and do work in the water. I do keep the tractor inside at all times when not being used and hope to have it for many years to come. It is perfect for my use with the boat and FEL work around the cottage.

Thanks, B2601

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post #18 of 24 Old 05-15-2019, 09:08 PM Thread Starter
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Re: Kubota B2601, boat hauler

Well, spring has come and we returned to the cottage Monday. Today I checked out the concern with water in the front axle/ drive of the B2601. First off there is not a vent on the front axle housing, there is a boss that is not used, next to the dipstick/filler port where perhaps in earlier models there was a vent. I had checked out a new B2601 at the Kubota dealer, no vents on them either.

I drained the front on both left and right side and there was no water present. We set a glass aside to see if water settled out after a while, still none. I will say however the oil was very grey in colour but no water.

I put new Kubota oil in the front and seems all is well. I will check regularly as I will continue to use the tractor in the water... looks like Kubota is a good water machine, living up to its rice paddy heritage

Regards, B2601

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post #19 of 24 Old 05-16-2019, 11:43 AM
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Re: Kubota B2601, boat hauler

Yesterday, I started preparing my hay mower for a new season. I've found that the metal gear box sweats inside during the winter (more so when I cover the unit with a tarp) and when that happens the gear oil becomes grey in color. Actually, not until I run the unit for a minute or two. I believe the water settles to the bottom of the gear case and gets mixed in with the oil when it runs. I think you are seeing water in your front axle oil.
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post #20 of 24 Old 05-16-2019, 02:09 PM Thread Starter
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Re: Kubota B2601, boat hauler

To be on the safe side I am going to take the sample I have in for ferrography / testing so I will know for sure. After more than 24 hours I still cannot see any water in the oil

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post #21 of 24 Old 05-16-2019, 03:10 PM
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Re: Kubota B2601, boat hauler

Here are my samples. The oil I drained yesterday was grey but is now mostly dark oil colored. The first and second from left have about a teaspoon full of water added. The one on the right is new 85W140 gear lube. Please post back your findings. Tnx.
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post #22 of 24 Old 05-17-2019, 06:23 AM
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Re: Kubota B2601, boat hauler

Milky oil indicates water in suspension. To be sure, warm the sample to 140F for a couple of hours and some of the water should drop out of suspension.

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post #23 of 24 Old 05-18-2019, 04:29 PM Thread Starter
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Re: Kubota B2601, boat hauler

Here is a picture of my oil, after a couple days.

B2601
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post #24 of 24 Old 05-19-2019, 12:03 PM
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Re: Kubota B2601, boat hauler

I drained my old mower oil into a 5 gallon bucket. It was milky looking but now, after a couple of days, it looks too good to throw away. The teaspoon of water I added to the samples just sat there on top until I stirred it vigorously with a drill. Not sure where it goes after sitting a while.
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