rowlettr
New member
I have a Kubota B2920 that I bought a sickle mower for. It attaches to the 3pt lift on the back. There is a hydraulic cylinder on the mower to raise the mower bar up and down. It came with one hydraulic line to connect to the tractor.
http://www.multivator.com/documents/FBR_Manual_2004-04_(19502180).pdf
I was under the impression that once I set the chain to hold the mower at the correct height, I could disconnect the hydraulic line from the 3pt lift and use that hydraulic line to operate the sickle blade lift. When I connected it and turned the tractor on, the bar raising cylinder operated by itself. I thought the hydraulic controller for the 3pt lift could be used to raise and lower the sickle bar, once I swapped the lines. The hydraulic cylinder on the mower, however, raises the bar by itself, and the controller has no effect. It is as though the tractor applies hydraulic pressure to the sickle mower blade lift cylinder whenever the tractor is running.
Also, when I have the line connected to the sickle mower, the front end loader will not lower. I wondered if I had the line from the mower connected to the wrong connector from the 3 pt lift lines. The sickle mower hydraulic line came with a male end on it, so I connected it to the female end on my tractor. I don't have a female connector to put on the end of the line to try it the other way. I could get one, but I don't know if that is the problem.
I also have a backhoe, which mounts on a subframe and uses both ends of the 3pt lift hydraulic lines. When the backhoe is removed, the two hydraulic line ends on the tractor are reconnected to each other, which makes the 3pt lift work again. I read in my manual that I could damage the hydraulic pump or seals if I start the tractor with the lines disconnected.
I don't know hydraulics (it is probably obvious by now), so I am trying to understand how the connection to the sickle mower should be made whereby I can control the lifting of the blade with a control knob, and at the same time not damage my mower or make the loader not work properly.
My questions is this:
Do I need a separate rear remote so that I will not be leaving the 3pt lift lines disconnected and possibly damage my tractor (most expensive option), or should I try connecting it to the male side of the 3pt lift line? Or is there another thing I should try?
P.S. Is there somewhere on the Internet that I can read about how these types of hydraulic systems work and how they should be inter-connected?
Thanks
http://www.multivator.com/documents/FBR_Manual_2004-04_(19502180).pdf
I was under the impression that once I set the chain to hold the mower at the correct height, I could disconnect the hydraulic line from the 3pt lift and use that hydraulic line to operate the sickle blade lift. When I connected it and turned the tractor on, the bar raising cylinder operated by itself. I thought the hydraulic controller for the 3pt lift could be used to raise and lower the sickle bar, once I swapped the lines. The hydraulic cylinder on the mower, however, raises the bar by itself, and the controller has no effect. It is as though the tractor applies hydraulic pressure to the sickle mower blade lift cylinder whenever the tractor is running.
Also, when I have the line connected to the sickle mower, the front end loader will not lower. I wondered if I had the line from the mower connected to the wrong connector from the 3 pt lift lines. The sickle mower hydraulic line came with a male end on it, so I connected it to the female end on my tractor. I don't have a female connector to put on the end of the line to try it the other way. I could get one, but I don't know if that is the problem.
I also have a backhoe, which mounts on a subframe and uses both ends of the 3pt lift hydraulic lines. When the backhoe is removed, the two hydraulic line ends on the tractor are reconnected to each other, which makes the 3pt lift work again. I read in my manual that I could damage the hydraulic pump or seals if I start the tractor with the lines disconnected.
I don't know hydraulics (it is probably obvious by now), so I am trying to understand how the connection to the sickle mower should be made whereby I can control the lifting of the blade with a control knob, and at the same time not damage my mower or make the loader not work properly.
My questions is this:
Do I need a separate rear remote so that I will not be leaving the 3pt lift lines disconnected and possibly damage my tractor (most expensive option), or should I try connecting it to the male side of the 3pt lift line? Or is there another thing I should try?
P.S. Is there somewhere on the Internet that I can read about how these types of hydraulic systems work and how they should be inter-connected?
Thanks