CK30HST Hydraulic chatter

[TractorLegend]

I had some temporary hydraulic chatter while on a semi steep incline clearing some trails. It was noticable when lifting loader and I could feel the chatter in the steering at that time.
It felt like lack of pressure or air in the system. I backed down to check fluid and it was on the mark. Has anyone noticed this on hills?
Maybe sump draws air at some point?
Would this system benefit from overfilling a pint or two?
Situation went away after completing "incline" work and didn't feel it later at all.
I was doing some backblading with bucket on the hill too.

 

[Steve_Miller]

I've gotten this before after you've let the loader down in the float position for an extended period (1-3 seconds). When you go to put the loader back up it will seem like it is jumping for a bit. Mine is a CK20 but the symptoms sound the same although I wasn't on any inclines. Hope this may help?/forums/images/graemlins/confused.gif /forums/images/graemlins/confused.gif /forums/images/graemlins/confused.gif

Steve

 

[TractorLegend]

Must be it---I don't fully understand the float- /forums/images/graemlins/confused.gif being new to bigger tractors. But it likely ended up there inadvertently when backblading??

 

[VictorW]

I haven't noticed that on my CK30hst. I keep the fluid filled to the upper line on the stick with the cylinders retracted. Maybe I haven't had mine on a hill as steep as you. The float position on the FEL is when you go beyond the down pressure area of the joystick for the FEL and the joystick will lock forward. At that point, there is no down or up pressure on the bucket. The only thing keeping the bucket down on the ground is the weight of the bucket and frame.