Kubota B2650 and B3350 info and hints

[nightdevil]

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[bumperm]

Can someone paste the shop vac method for saving fluids - can not seem to find it.

I apologize, for some reason I was no longer getting emailed notices of posts here, so haven't looked in a few weeks . . .

The Shop Vac method for changing the HST filter while saving (not draining) the fluid for the 50 hour "filter only" change:

Remove the yellow rubber plug cap at the rear of the tractor. Find a suitable adapter that will fit snugly in this hole. You may have to use a couple of adapters to get the hose size of your vac - many vacs include a taper round nozzle that helps - the adapter should have as big an ID hole as possible so as to not restrict the vacuum suck too much. I used a plastic fuel nozzle that fit nicely.

Loosen the filter. On the B3350 this is the filter on the left rear side. Prepare new filter by coating O-ring with a light coat of silicone grease or motor oil. Put an oil drain pan under filter - - there will be a small loss, maybe a pint or so. Get into a comfortable position with the new filter handy. Remove old filter and put on new filter.

Side note:

After my 50 hour change, the tractor started much easier without so much of the staggering and stumbling as before. I'm using Chevron Delco 400LE synthetic 5-40 weight oil (the manual calls for 15-40) not sure if this is making for easier starts, but I suspect so. In any case, to help protect the turbo from oil coking, I would only use a synthetic oil. I also always allow the engine to idle for at least 30 seconds to before shut down.

bumper

 

[Paystar]

Why would anybody NOT change the fluid? Crazy. Oil is cheap compared to repairs.
And even though the owners manual says filters only at 50 hours......the shop/service manual says hydro oil MUST be changed at 50 hours.

 

[bumperm]

And some people change their car engine oil at 3K miles when the manufacturer recommends 5K or even 10K (as Toyota does on my FJ). Things change, better fluids and other factors combine to make longer recommended service intervals. Frankly, while I don't think it's "crazy" to change fluids more often than that, I do think it wasteful and overkill for no benefit. However, if it makes you feel good . . .

There are a number of "conflicts" between the Kubota Work Shop Manual and the Operator's Manual that comes included with the tractor. The WSM has an issue date of 12 - 2012, while the OM has a date of 2013 (no month indicated). I conclude the OM takes precedence and checked to confirm this with my Kubota dealer.

The maintenance schedule in the OM says the HST filter needs to be replaced at 50 -200 - and 400 hours. However, the Kubota Super UDT2 (newer synthetic HST oil) is scheduled to be replaced only after the first 400 hours and every 400 hours thereafter. There's 4 gallons of UDT2, so just over $100 worth. Won't hurt a thing to change it more often than recommended. I'm complying with the OM and leaving mine in until the called for 400 hours of service, unless there's sign of water contamination, discoloration - and at just 60 hours now, it looks as new. I did buy 6 gallons of UDT2, just to have on hand.

bumper

 

[Paystar]

Not arguing....I'd just rather dump the breakin oil. Mine was pretty black.
I might send SOS samples in to Cat like I do with the big truck just to see how it holds up, so I know when to change it. Might take me a while to get 400 hours. Longer than I would want to keep the same oil in it anyway.

 

[Paystar]

Not arguing....I'd just rather dump the breakin oil. Mine was pretty black.
I might send SOS samples in to Cat like I do with the big truck just to see how it holds up, so I know when to change it. Might take me a while to get 400 hours. Longer than I would want to keep the same oil in it anyway.

 

[bumperm]

Not arguing....I'd just rather dump the breakin oil. Mine was pretty black.
. . . .

What? Black? Are we talking about the same thing? HST oil should *never* be black! If so, that would surely mean that something was grossly overheating in the tranny and I would have expected some sort of catastrophic failure to have happened many hours prior. Seriously, HST oil should, even after hundreds of hours, look almost like the day it was born. Water contamination can make it milky or with froth.

What Kubota installs for HST oil in a new tractor is not "break in" oil, it is the same UDT2 synthetic oil they recommend using throughout the life of the tractor.

Now when I changed my engine oil, that was black, as one would expect oil to be after 50 hours in a diesel engine.

bumper

 

[robstaples]

I just got my 3350 back from the dealer. They worked with Kubota technical and resolved my problem. Symptoms: wouldn't regen in the cold. Would indoors but not out in 25degree or lower. They replaced the regen glow plug. Wasn't getting hot enough. My dpf ought to be really clean as they forced 4 or 5 regens resolving the problem. 6 hours run time and a tank of fuel. Nice to have it back. I just need one more big snow fall to test my finished blower.��

 

[Paystar]

What? Black? Are we talking about the same thing? HST oil should *never* be black! If so, that would surely mean that something was grossly overheating in the tranny and I would have expected some sort of catastrophic failure to have happened many hours prior. Seriously, HST oil should, even after hundreds of hours, look almost like the day it was born. Water contamination can make it milky or with froth.

What Kubota installs for HST oil in a new tractor is not "break in" oil, it is the same UDT2 synthetic oil they recommend using throughout the life of the tractor.

Now when I changed my engine oil, that was black, as one would expect oil to be after 50 hours in a diesel engine.

bumper

Yes, hst/hydraulic oil. Was not "black" but clearly used oil. And I know it is not some kind of "break-in" oil. But I like to over maintain my stuff and when it is all new parts working for the first time after manufacture.....I change MY oil.
And no, was not overheated. Everything is fine and tractor works well.
I do fluid sampling on my big truck but for 4 gallons of premium udt in the little Kubota, I'm not too worried about it. No big deal to change it.

 

[WilliamBos]

What? Black? Are we talking about the same thing? HST oil should *never* be black! If so, that would surely mean that something was grossly overheating in the tranny and I would have expected some sort of catastrophic failure to have happened many hours prior. Seriously, HST oil should, even after hundreds of hours, look almost like the day it was born. Water contamination can make it milky or with froth. What Kubota installs for HST oil in a new tractor is not "break in" oil, it is the same UDT2 synthetic oil they recommend using throughout the life of the tractor. Now when I changed my engine oil, that was black, as one would expect oil to be after 50 hours in a diesel engine. bumper

Maybe if you never use your tractor, it will stay clear, but lots of use will brown it out. Black in the oil was from the assembly process, totally normal. Oil is not that expensive, change and drive on.