I recently bought a new
L47 and the curl on the backhoe bucket seems very slow. The swing and dipper move great and see, normal but the bucket curl and small dipper move much slower.
Has anyone experienced this or is there a way to have it operate quicker?
Doesn't seem to matter what speed I run the engine at either.
Thanks in advance for any help!
Hello Oldyork77, welcome to TBN.
Is sure sounds like something is not right with your
L47. The good news is that it doesn't sound like the sort of thing that will cause damage to the machine or system; it simply sounds like some you are not getting enough hydraulic flow to the right hand backhoe control which operates dipperstick and bucket curl.
Keep in mind that curling/uncurling the bucket is a movement is normally the slowest movement on the backhoe... followed by the dipperstick speed, but both are still plenty fast if you open the valve suddenly. The fastest movement is normally the swing. And like all the backhoe controls, the right side and the left side are both definitely faster when the engine is revved up.
The left hand control controls the swing and main boom movement, and I believe you say that seems to be working normally. Normal would mean that the farther you move the control the faster the motion becomes. Normal operation would also mean that the speed of movement is also always a function of engine speed. Does that sound like your left hand control?
BTW, it helped me to learn the backhoe at an idle. To this day I often operate the backhoe with the engine at a high idle instead of at full speed. If the hoe controls are working properly and the hydraulic pump is new and tight, the power of the hoe is only slightly less at a high idle than at full engine speed - but the speed of the backhoe's response is much slower and easier to control at lower engine speed.
If the right hand control still seems slow, the first thing I would check on yours are the two push-pull levers that control flow to the backhoe control. If your
L47 is the same as my
M59, you can lift up the steel plate where your feet rest when you are operating the backhoe position. That steel plate is hinged and not bolted down. Lift it and look for two levers...one on each side just outside of the 3pt lift arms. These levers should be pushed all the way in towards the tractor when operating the backhoe. They move easily, and one or both might have gotten bumped into the wrong position. In my copy of "Operator's Manual for the Kubota Backhoe" that came with the tractor, these levers are described in the section on "Removing the Backhoe".
In that same page in that Backhoe Operating Manual is a picture of how the backhoe hoses are connected to the tractor. There are probably three hoses with quick disconnects on them that have to be removed when removing the backhoe. These might have gotten hooked up wrong. That would also cause the problem you are having.
Whatever it is, it doesn't sound normal to me - but an experienced operator could hop on it and tell in a moment if something isn't right.
good luck with it,
rScotty
