Malfunctions; Troubleshooting; Emergency Action - Samson EB 8315 EN Mounting And Operation Instructions

8 Malfunctions

Read hazard statements, warnings and caution notes in the 'Safety instructions and mea-
sures' section.

8.1 Troubleshooting

Malfunction
Actuator stem does not
move on demand.
Actuator stem does not
stroke through its
complete travel range.
Note
Contact our after-sales service for malfunctions not listed in the table.

8.2 Emergency action

Plant operators are responsible for emergency action to be taken in the plant.
EB 8315 EN
Possible reasons
Insufficient signal
pressure
Diaphragm in the
actuator defective
Insufficient signal
pressure
Incorrect setting of
valve accessories.
Recommended action
Check the signal pressure.
Check the signal pressure line for leakage.
Contact our after-sales service.
Check the signal pressure.
Check the signal pressure line for leakage.
Check the settings of the valve accessories.
Malfunctions
8-1