one slow cylinder

hernando · Jan 7, 2008

i have a bobcat quick att. on my loader ...today i took off the forks and was lineing up the bucket and i noticed on of the dump cylinders was real slow....it was not matching up with the other ,,,any ideas on what this could be ??? thanks for the help bruce

Wayne County Hose · Jan 7, 2008

When you have 2 cylinders connected hydraulically but not mechanically, one will almost always ( like 99% of the time) lag behind the other. This is perfectly normal and nothing to be concerned with.

There are so many factors, hose length, cylinders not being exactly the same, basically a hundred variables. As a matter of fact, I don't know if I ever saw 2 cylinders connected hydraulically but not mechanically extend and retract the same.

hernando · Jan 10, 2008

thanks for the help.... it may have done this all along ...this my be the first time i noticed it,,,,,,thanks bruce

RonMar · Jan 10, 2008

Wayne County Hose said:
As a matter of fact, I don't know if I ever saw 2 cylinders connected hydraulically but not mechanically extend and retract the same.

I never have either. I would call this perfectly normal behavior.

RickB · Jan 11, 2008

Most loader manufacturers have figured out it is a lot handier for the operator when the two sides of the QA unit are tied together mechanically.

Kaliburz · Jan 11, 2008

My forklift's tilt cylinders are like that. If you watch, one side is always ahead of the other. If you look, the one that extends/retracts faster probably is closer to the valve/supply or has a shorter hose.

Wayne County Hose · Jan 11, 2008

Kaliburz said:
My forklift's tilt cylinders are like that. If you watch, one side is always ahead of the other. If you look, the one that extends/retracts faster probably is closer to the valve/supply or has a shorter hose.

Is this with the mast on the truck? If so, your rod ends need to be adjusted. Over time, you can damage the mast bushings.