2009 - B2920 hydraulic issues

[Tomb2920]

First post - have a 2009, b2920 with a la364 loader, hydrostat with hydraulic issues (local kubota dealer couldnt initially figure out) - bucket tilts up/down ok, wont move down but will float down, eont go up unless barely pull back lever, and 3pnt wont work at all - had leaks in 2 hoses going to bucket that i replaced but used old quick connects - ideas on what could be wrong? I think one of my bucket hoses drips when disconnected… could quick connects be causing these issues? All started when leaks got so bad the bucket wouldnt work and still have same issue - thank you!

 

[North Idaho Wolfman]

Power beyond issue.
Normally a bad quick disconnect on the Power beyond line.

This causes erratic loader operation and No three point operation.

Just to make sure, it doesn't have a backhoe loop does it?
If it does you need to check that loop too, as it's part of the Power beyond circuit.

 

[Tomb2920]

Thanks, I dont know what the power beyond line is and it’s been hard to find info online… been trying to learn more about the hydraulics…

drawing or video or idea of where to look?

i do have a kubota backhoe that i use sometimes but havent hooked up in a while, i have been mowing quite a bit last couple years with my finish mower

 

[North Idaho Wolfman]

Ok diggin into this model the PB circuit is almost all internal, but the one part is external is the BH loop
You need to look at these connections.
To start with try disconnecting and reconnecting the BH loop.

 

[Russell King]

Thanks, I dont know what the power beyond line is and it’s been hard to find info online… been trying to learn more about the hydraulics…

drawing or video or idea of where to look?

i do have a kubota backhoe that i use sometimes but havent hooked up in a while, i have been mowing quite a bit last couple years with my finish mower

This thread discusses hydraulics and the power beyond in a bit of detail. Read through it for a general overview of the Kubota open center system.

Need Help Connecting Hydraulic lines from BT601 Backhoe to BX2670

Hello, looking for assistance with connecting hydraulic lines between aBT601 backhoe to Kabota BX2670 tractor. I have attached pictures, and color coded the lines. Blue, white and yellow come from the backhoe. The yellow is on the left side of the valve body and blue and white on the right side...

www.orangetractortalks.com

 

[Tomb2920]

There is no bh loop that i can see on the tractor… the one hose that comes straight out of the loader valve is what you connect to the bh - im not using the bh and this issue is without using or hooking up the bh - could it be a couple quick connects to/from bucket and the one that i would hook up to the bh?

 

[North Idaho Wolfman]

There is no bh loop that i can see on the tractor… the one hose that comes straight out of the loader valve is what you connect to the bh - im not using the bh and this issue is without using or hooking up the bh - could it be a couple quick connects to/from bucket and the one that i would hook up to the bh?

How long have you had this issue?
How long has the BH been off?
The connections to the loader could have an issue on the operation off the loader, but would not have any bearings on the issue with the three point.

Have you ever turned the three point speed control under the seat?

 

[North Idaho Wolfman]

This is the BH loop.
You need to have those 2 connected together when the BH is off.
Has this line been disconnected since the BH was removed?
If it has then there is a very high likely either the Pressure relief valve will be damaged or the possibly the pump.
If it's been connected try disconnecting it and reconnecting it.

 

[number two]

Didn't the early B 20 series have an issue with the loader valve?
FEL won't dump.
Good Luck!