544J bucket drift

Have a 544J that when the bucket was full it would drift down. Checked the ram and no internal leaks. Switched the psi relief valve and all was fine.

Now 2 weeks later when curling or dumping the bucket it will travel at normal speed, but when the control handle is released the ram will continue the same direction at a slow speed. If you tap the control the other way you may get it to stop and hold but is tough to find the sweet spot. Acts like the spool does not want to center.

Any info...

544J bucket drift

544J bucket drift