Loader Bucket wont hold position

[B1550]

Hi everyone
I have a B1550, everything work great on it but the loader bucket won’t stay in position once I let go of the control handle. Even when the bucket is empty the bucket will start to fade downward and with a load in the bucket it fades much faster.
Any help would be appreciated.

 

[North Idaho Wolfman]

First swap the up down lines for the roll lines, if the fade moves to the lift then it's a bad Spool valve.
If it doesn't move you will need to rebuild the cylinders.

 

[B1550]

Thanks for your quick response.
I did the swap and the fade stayed the same.
Thanks for the information.

 

[Hotmetal]

FYI. I recently had the same problem on a B7100. Wolfman's test indicated the bucket cylinders were the problem as well. I rebuilt my cylinders and it cured the problem. I am attaching a pic of the offending seals. The top center is a new T seal. The bottom two are left and right cylinder seals I removed. I couldn't believe the right side one.

 

[eddy20]

How difficult is it to rebuild the cylinders and replace all hoses?

 

[In Utopia]

Not hard at all, just make sure you get the right rebuild kit.
Why do you want to replace the hoses?

 

[Tooljunkie]

Best advice i can offer is keep everything clean. The cleaner the better. Blast/flush the new hydraulic hoses too. Dont trust that because they are new that they are clean.
Overhauled a set of cylinders a while back, replaced hoses also. A piece of something got in and scored a cylinder. All that work and it still leaked down.