L2350dt retrofitting a BL4690b backhoe

D

Donystoy

Well-known member
Lifetime Member

Equipment
LX2610HSDCC, B/H, Loader, plus numerous other attachments. B7200 sold
Dec 10, 2013
659
299
63
Binbrook, Ontario
Here is the bracket that I made to hold my pumps. One on my splitter and the other on my BH. I can adjust the nuts on top so that there is minimal downward weight on the pto extension. The upper part of the bracket has a sleeve that uses the lower pin location of the 3ph bracket. The guard around the pto also has to be removed. My BH is a BH77 that I converted from tractor hydraulics to pto driven. I used a 6.8 gpm pump that was readily available.
 

Attachments

Last edited:
  • Love
Reactions: 1 user
Flintknapper

Flintknapper

Well-known member
Premium Member

Equipment
L2350DT
May 3, 2022
1,902
2,392
113
Deep East Texas
Donystoy said:
Here is the bracket that I made to hold my pumps. One on my splitter and the other on my BH. I can adjust the nuts on top so that there is minimal downward weight on the pto extension. The upper part of the bracket has a sleeve that uses the lower pin location of the 3ph bracket. The guard around the pto also has to be removed. My BH is a BH77 that I converted from tractor hydraulics to pto driven. I used a 6.8 gpm pump that was readily available.
Click to expand...

VERY nice. Excellent work.
 
TheOldHokie

TheOldHokie

Well-known member
Lifetime Member

Equipment
L3901/LA525, B7200DT/B1630, G2160/RCK60, G2460/RCK60
Apr 6, 2021
9,390
4,911
113
Myersville, MD
windyridgefarm.us
fox2boost said:
do you know what i would need for a shaft extension if i go the pto route? not much room at all back there..also how do i know if i can go to my factory hydraulics? like where do i tap in?
Click to expand...
You can get a slip on PTO extensiom at any tractor supply for roughly $25.

You can tap into tractor hydraulics at the loader valve.

Dan
 
Flintknapper

Flintknapper

Well-known member
Premium Member

Equipment
L2350DT
May 3, 2022
1,902
2,392
113
Deep East Texas
fox2boost said:
i just wish i could find the correct one, upon further review my machine puts out 4.8 gpm and the factory pto pump is 5.0 gpm so its not far off.
Click to expand...
IF 5.0 gpm is the factory pump output...then you should already be good. I would have thought the backhoe would require considerably more than that.

My Facory Workshop Manual shows your L2350DT producing 7.2 gpm (@ 2800 rpm engine speed). The 2 WD version puts out 4.6 gpm.

IF both those figures are correct (5.0 gpm to operate backhoe and tractor capable of 7.2 gpm output) then you could certainly tie into that source.
 
  • Like
Reactions: 1 user
F

fox2boost

New member

Equipment
L2350DT
May 8, 2025
18
3
3
EAST LONGMEADOW MA
Flintknapper said:
IF 5.0 gpm is the factory pump output...then you should already be good. I would have thought the backhoe would require considerably more than that.

My Facory Workshop Manual shows your L2350DT producing 7.2 gpm (@ 2800 rpm engine speed). The 2 WD version puts out 4.6 gpm.

IF both those figures are correct (5.0 gpm to operate backhoe and tractor capable of 7.2 gpm output) then you could certainly tie into that source.
Click to expand...

good to know thanks
 
TheOldHokie

TheOldHokie

Well-known member
Lifetime Member

Equipment
L3901/LA525, B7200DT/B1630, G2160/RCK60, G2460/RCK60
Apr 6, 2021
9,390
4,911
113
Myersville, MD
windyridgefarm.us
Flintknapper said:
IF 5.0 gpm is the factory pump output...then you should already be good. I would have thought the backhoe would require considerably more than that.

My Facory Workshop Manual shows your L2350DT producing 7.2 gpm (@ 2800 rpm engine speed). The 2 WD version puts out 4.6 gpm.

IF both those figures are correct (5.0 gpm to operate backhoe and tractor capable of 7.2 gpm output) then you could certainly tie into that source.
Click to expand...
You have to be careful with those numbers. Kubota sometimes quotes total pump output which is then divided into two circuits - a priority circuit for steering and excess circuit for implement.

Its easy and inexpensive to tap the tractor hydraulics. If the hoe is too slow you can aiways add the PTO pump.

Dan
 
  • Like
Reactions: 1 user
Flintknapper

Flintknapper

Well-known member
Premium Member

Equipment
L2350DT
May 3, 2022
1,902
2,392
113
Deep East Texas
TheOldHokie said:
You have to be careful with those numbers. Kubota sometimes quotes total pump output which is then divided into two circuits - a priority circuit for steering and excess circuit for implement.
Dan
Click to expand...
^^^^^

Probably the case here. I could not find anything other than the figure cited...but DID note the priority ciruit for the power steering in the hydraulic schematic.

So....as you allude to, Kubota might have been remiss to have printed 'all' of the information.

I do know this much: On my L2350DT when turning the tractor and similtaneously working the FEL, there is a distinct 'groan' in the power steering and the steering becomes somewhat heavy. So output is barely 'adequate' from the factory.
 
TheOldHokie

TheOldHokie

Well-known member
Lifetime Member

Equipment
L3901/LA525, B7200DT/B1630, G2160/RCK60, G2460/RCK60
Apr 6, 2021
9,390
4,911
113
Myersville, MD
windyridgefarm.us
Flintknapper said:
^^^^^

Probably the case here. I could not find anything other than the figure cited...but DID note the priority ciruit for the power steering in the hydraulic schematic.

So....as you allude to, Kubota might have been remiss to have printed 'all' of the information.

I do know this much: On my L2350DT when turning the tractor and similtaneously working the FEL, there is a distinct 'groan' in the power steering and the steering becomes somewhat heavy. So output is barely 'adequate' from the factory.
Click to expand...
It may not be outpur per se. Where is the hydraulic outlet for your loader?

Dan
 
You must log in or register to reply here.

Top Bottom