I have a b219 loader from a b7100 gear drive and I was wondering if that loader will fit a b7100 hydrostatic drive? Also do all b7100 tractors have a front PTO. The b219 pump ran off of the front PTO.
b219 loader
- Thread starter jenkinsr
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Lil Foot
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Equipment
1979 B7100DT Gear, Nissan Hanix N150-2 Excavator
I believe the hydro is longer that the gear, (2" sticks in my head, but that doesn't mean much) so it should fit if you lengthen the subframe the correct amount. Not sure if there is any difference in the front pulley where the loader hydraulic pump attaches, but someone else with more knowledge that me will probably chime in.
Thanks Shouldn't be a problem to lengthen sub frame. I'm seeing that the later model b7100s have mid PTO. Not sure if that would be a problem mounting a pump to a mid PTO?
Lil Foot
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Equipment
1979 B7100DT Gear, Nissan Hanix N150-2 Excavator
I would think that would be a nightmare logistically, but beyond that I doubt it would work from an RPM standpoint. The B219 pump runs off the crankshaft at engine speed- PTO speeds would be considerably lower.
torch
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Equipment
B7100HSD, B2789, B2550, B4672, 48" cultivator, homemade FEL and Cab
Yes, that's what I did. It requires the hydraulic block though (there's another thread ongoing around here about that).
It's not particularly fast though. It takes about 16 seconds to fully cycle my arms from ground to raised to ground again. I used 2" diameter cylinders, 1.5" cylinders would be faster.
I upgraded my hydraulic pump to a larger displacement one, but that did not increase the speed as much as I thought it would. Now it takes about 12 seconds per cycle.
However, speed aside, there's no problem with power. In fact, I had to turn down the relief valve pressure in the spool valve assembly to limit the lifting force. With the 2" cylinders, it would easily lift more than the tractor was built to handle.
kubotasam
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B2410, B7100dt, B7500,Woods BH750,Landpride 2660RFM, Tiller, B2781 Snowblower
I had a B7100 HST that hydraulics for the loader came from the engine mounted pump. As Torch said it worked, just a little slower than I would have liked.
Well I just purchased a 1994 B7100 HST. Yes there is splines on end of crankshaft so I can use either loader pump or hydro-statics.
torch
Well-known member
Equipment
B7100HSD, B2789, B2550, B4672, 48" cultivator, homemade FEL and Cab
Yes and no.
Yes, you can (theoretically) connect a pump to the front crankshaft. The trick will be finding the right parts -- that's not a common spline pattern on that crankshaft.
No, you can't use the hydrostatic system. The HST drive has it's own pump that is built-in and dedicated to the HST.
You can use the 3PH hydraulic system. It shares the fluid and sump with the HST but has it's own pump (located on the right side of the engine, driven off the timing gears) and feeds the hydraulic block before the 3PH.,
After further inspection of the 3PH hydraulic system and pump, it can be used but its very small and the lines are very small limiting the speed of FEL. The splined shaft on end of crankshaft can be used but the radiator is only 1/2 in from splines. No room for splined drive to fit on. I have the splined shaft that drives the pump. Guess I will look into raising the radiator and relocate the fan shroud.
North Idaho Wolfman
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L3450DT-GST, Woods FEL, B7100 HSD, FEL, 60" SB, 743 Bobcat with V2203, and more
The hydraulic pump on the engine is about the same displacement as the bolt on front pump.
You will see about the same performance on either regardless of the line size.
You should no have to move the radiator or shroud for the shaft to miss it, they used it that way for years without issue.
Torch and I both have the same issue with our B7100's being slower, it's because we used larger cylinders than the B219 had, thus more power but slower speed.
You could use the Mid PTO to power a pump, but attaching a pump and plumbing it would be a nightmare In my opinion.
You will see about the same performance on either regardless of the line size.
You should no have to move the radiator or shroud for the shaft to miss it, they used it that way for years without issue.
Torch and I both have the same issue with our B7100's being slower, it's because we used larger cylinders than the B219 had, thus more power but slower speed.
You could use the Mid PTO to power a pump, but attaching a pump and plumbing it would be a nightmare In my opinion.
torch
Well-known member
Equipment
B7100HSD, B2789, B2550, B4672, 48" cultivator, homemade FEL and Cab
I think Kubota designed their pump to hang underneath, with a chain drive off the crank splines to a shaft running forwards. So the pump was actually situated below and forward of the radiator.
They aren't great pictures, but look at pages 6 and 7 of this manual:
http://www.kubotabooks.com/AutoIndex/index.php?dir=Loaders and buckets/&file=B219.pdf
They aren't great pictures, but look at pages 6 and 7 of this manual:
http://www.kubotabooks.com/AutoIndex/index.php?dir=Loaders and buckets/&file=B219.pdf
Last edited:
North Idaho Wolfman
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L3450DT-GST, Woods FEL, B7100 HSD, FEL, 60" SB, 743 Bobcat with V2203, and more
Nope, connects straight to the front of the shaft, it does have chain couplings on the shaft so that might be whats confusing you.
The chain is part of the coupling, joins the two pieces together. Also in the manual that Torch posted it says to unbolt and raise the radiator to install shaft coupling. Thanks Torch for the pdf file on the 219 loader!