Backhoe control help

[skindaddy]

So where to start I have a ansung bk976 backhoe frame mount qa for Kubota L2501. We keep having issues with the cap on the bottom of hydraulic control breaking. First time blew oil everywhere. This time cap broke exact same way snaps the ears where screws are but no real oil Leak, and able to finish task.
Don't know why it keeps happening? This time though it has lost its spring to return to center.

Dealer plumbed backhoe and 3rd function.

Also can't seem to find parts breakdown for it , dealer isn't quick to help or ansung not helping them.
First thought was buy whole Kubota hydraulic block, but yeah no they're like 5k

The 2 hoses circled, I believe the one on loader valve would be supply, the other on silver block return.
It has constant hydraulic flow long as tractor is running I gather

 

[Blondie70]

I have one of those. Same thing but no third function...I don't recognize where this is...so I guess it is associated with third function ??

 

[oldnslo]

I would triple check my connections from tractor to the back hoe. Your picture shows three lines.. if this is true then pressure into hoe would come from power beyond on loader valve. Power beyond on how would go to three point. Third line goes directly to tank.

My guess is you have tank line connected incorrectly causing back pressure which could pressurize those caps.

 

[skindaddy]

The pic with 3 and silver block underneath floor of f/r pedal 1 circled goes back of tractor other 2 go forward to either loader or 3rd function will have to check tomorrow.

Other pic is loader joystick block 1 circled is the 2nd line going to back of tractor.

Will basic owners manual indicate what these ports are for?

 

[Chewwy]

The pic with 3 and silver block underneath floor of f/r pedal 1 circled goes back of tractor other 2 go forward to either loader or 3rd function will have to check tomorrow.

Other pic is loader joystick block 1 circled is the 2nd line going to back of tractor.

Will basic owners manual indicate what these ports are for?

Unlikely the basic operators manual will provide that level of detail. The parts manual might help though.

 

[skindaddy]

Anyone have idea why it lost spring to return to center. That cap doesn't seem to me to have any matter on it

 

[Chewwy]

Does this parts manual for the BH help?

 

[skindaddy]

Chewy thanks for the manual absolutely will help , if when figure what parts.
Thank you

 

[oldnslo]

Anyone have idea why it lost spring to return to center. That cap doesn't seem to me to have any matter on it

I suspect centering spring was held in place in the one direction by the cover that broke.

 

[Blondie70]

Thanks Chewwy !!!!!