John Deere 445 tractor bucket lift won't lift enough

[Tonybuckley]

There us no power in bucket when I try to lift anything. I have changed oil fluids. Any advice?
Thanks
Tony

 

[J_J]

No lift, is that the only thing wrong with the hyd system?

Re-Check your QD's for correct coupling.

Put a hyd gage in the system and use it to monitor and trouble shoot the hyd system.

Your hyd pressure should be about 1000 psi.