24
EB 5757 EN
Servicing
7
Servicing
The electric actuator with process controller
was checked by SAMSON before it left the
factory.
−
The product warranty becomes void if ser-
vicing or repair work not described in
these instructions is performed without pri-
or agreement by SAMSON's After-sales
Service department.
−
Only use original spare parts by
SAMSON, which comply with the original
specifications.
7.1
Preparation for return ship-
ment
Defective electric actuators can be returned
to SAMSON for repair.
Proceed as follows to return valves to
SAMSON:
1. Put the control valve out of operation and
remove it from the pipeline. See associat-
ed valve documentation.
2. Remove the electric actuator from the
valve. See section 9.2.
3. Send the electric actuator to your nearest
SAMSON subsidiary. SAMSON subsid-
iaries are listed on our website at
u
8
Malfunctions
Î
Troubleshooting (see Table 1).
Contact SAMSON's After-sales Service de-
partment for malfunctions not listed in the ta-
ble.
8.1
Emergency action
Operators are responsible for emergency ac-
tion to be taken in the plant.
Emergency action in the event of valve fail-
ure is described in the associated valve doc-
umentation.
Note
Note
Tip
