Typical Problems and Potential Solutions

1. Adding a very small accumulator into the pilot line of the counterbalance valve helps to dampen changes in the pilot signal.

2. Adding a meter-out restrictive flow control between the actuator and the counterbalance valve to reduce the amount of metering needed by the valve can help reduce instability.

3. Adding a small direct operated relief valve to the pilot line to limit the maximum pilot pressure to help to prevent over opening with high inertia loads. It would also require a small restrictor in the line to limit the flow to the relief valve.