Help fix my problem.

[MEJE]

I recently changed the hydraulic oil and filters. Now the front end bucket raise and tilt drift down. I pick it up and it lowers down. Can anyone give me any suggestion to what I can do to fix this issue?

 

[George2615]

Welcome to TBN
That usually happens when there is air in the system. Try raising the bucket and continue holding the joystick. Then do the same with the curl function each way. It may take several times to get the air to bleed out. It's a self bleeding system