Installation & Operation Manual Proven Quality since 1892
ECON Hydraulic Actuator Fig.21401-21402
Rev.0
–
April, 2020
13
9
TROUBLESHOOTING
The main issues on this hydraulic actuator and the right actions are schematized in below trouble shooting
table. The table helps the operator to detect the problem and how to solve it.
►
Double acting actuator does not open or close
Check; Control pressure on the handpump connectors of the actuator
A pressure of between 100-135bar should be present to operate the actuator when installed on a valve.
- If a normal control pressure is present check if the valve is not blocked
- If the valve is not blocked check for external oil leakage on the actuator
►
Single acting actuator does not open
Check; Control pressure on the (open side) handpump connector of the actuator
A pressure of between 100-135bar should be present to open the actuator when installed on a valve
.
- If a normal control pressure is present check if the valve is not blocked
- If the valve is not blocked check for external oil leakage on the actuator
Check; if oil is trapped on the spring side of the actuator
Remove the handpump connector on the gas spring side and operate the actuator.
►
Single acting actuator does not close
Check; if the valve is not blocked
- Inspection of the spring housing on broken disc springs.
- Check for external oil leakage on the actuator
