Front-End Loader FEL bucket won't tilt down

[oslaton]

My 2 year old 6525's FEL bucket just instantly stopped being able to tilt down. It is now in the most upward position. It was working just fine and after the last bucket load, it would not tilt. When operating the controls it sounds like it is pressuring up just as it would at any maximum position. I disconnected the bucket from the cylinders but they still would not extend. Joystick seems to be working. Removed boot and all is still new and greased. All other hydraulics work fine. I just can't dump the bucket. Any suggestions?

 

[oldnslo]

Try disconnecting and reconnecting the quick disconnects in the tilt circuit. Possible of them has been slightly disconnected from a hose being pulled on.

 

[TSO]

Does this have quick connects for the loader (mid point, removable loader? If so, Check to make sure they are all connected properly by disconnecting and reconnecting them. Make sure to turn the machine off and relieve system pressure first.

 

[ovrszd]

I'm with these guys, a hose coupler has failed or is partially uncoupled.

 

[Qapla]

When that happened to us that is exactly what it was ... one of the QD popped lose.

 

[nikdfish]

Unseated quick connect did that to me, too...

Nick

 

[oslaton]

Thanks for the replies but I have already checked all connections, switched some around trying to identify a bad coupling and even reversed some hoses. It seems that the return line may not be releasing. When I reversed the two bucket lines lines, the problem was it would not tilt back. Opposite of what it did before. That line also held pressure even after killing engine and working joystick to relieve pressure. I do not have much experience with hydraulic control units. How would one check the releasing circuit? If that is what it is called.

 

[ovrszd]

Not saying it's not your valve..... But that's rare. Usually a coupler.

How about swapping the bucket tilt hoses with the boom lift hoses and see if the problem is still the tilt???

 

[TSO]

Thanks for the replies but I have already checked all connections, switched some around trying to identify a bad coupling and even reversed some hoses. It seems that the return line may not be releasing. When I reversed the two bucket lines lines, the problem was it would not tilt back. Opposite of what it did before. That line also held pressure even after killing engine and working joystick to relieve pressure. I do not have much experience with hydraulic control units. How would one check the releasing circuit? If that is what it is called.

If pressure isn't releasing back into the system, it's still likely that the hose cooler is the issue. On that disconnect (the one for the circuit that is apparently malfunctioning) check the coupler itself. I had the issue once and the spring inside the male coupler tip was malfunctioning, and the tip wasn't returning to center. It didn't do it every time, so it was actually tricky to figure out at first. I went to my local dealer and picked up a new coupler, screwed it on, and everything was fixed.

 

[ovrszd]

If pressure isn't releasing back into the system, it's still likely that the hose cooler is the issue. On that disconnect (the one for the circuit that is apparently malfunctioning) check the coupler itself. I had the issue once and the spring inside the male coupler tip was malfunctioning, and the tip wasn't returning to center. It didn't do it every time, so it was actually tricky to figure out at first. I went to my local dealer and picked up a new coupler, screwed it on, and everything was fixed.

Yep. I'm leaning toward coupler. If so, by switching the boom lift and bucket tilt circuits he'll figure that out pretty quick.