Hello. Recently i have done a little mentainance. Changed all the hoses for undercariage and swivel joint. And 1 hose for pilot valve and 2nd speed. So the problem is that lefthand pilot valve is not operating ok. Arm lifting works ok, lovering not. It looks like that it needs some time to send the command. Also for the rotating. It takes some time. But the rotating speed and and power looks ok. Judging time for rotation is 13s and this is ok. Right hand pilot works ok. What can i do? I think that the pressure is not the problem since 2nd speed works and right hand pilot also. Before this maintenance this was ok. Any ideas?
Is there a leak in the hydraulic hose, or is there a seal at the joint that was forgotten to be installed?
All seals ware replaced and there on the block is no leake. Today i have found out that if i hold up command for the blade, than totation starst immediately. Rotation and blade are on the same pump. No changes for the arm unfortunately
Solved. I have switched to hoses.