TD9B's blade won't stay stable...how do I fix that?

[Eagles Dancing]

The hydraulic cylinders don't leak. No problems that way, but the blade won't stay level. When you hit a hard patch of dirt, that cylinder floats up. Both sides will do that. It is a stationary blade, not a 6 way blade.

I don't know if there is air in the cylinder or what's going on.

Sure makes it tough to blade things out.

Thanks for you help.:confused3: