Servicing; Preparation For Return Shipment; Malfunctions; Emergency Action - Samson TROVIS 5757-7 Mounting And Operating Instructions

Servicing

7 Servicing
Information
The electric actuator with process controller
was checked by SAMSON before it left the
factory.
− The product warranty becomes void if ser-
vice or repair work not described in these
instructions is performed without prior
agreement by SAMSON's After-sales Ser-
vice 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 www.samson.de > Contact.
24

8 Malfunctions

Î Troubleshooting (see Table 1).
Information
Contact SAMSON's After-sales Service de-
partment for malfunctions not listed in the ta-
ble.

8.1 Emergency action

The plant operator is responsible for emer-
gency action to be taken in the plant.
Tip
Emergency action in the event of valve fail-
ure is described in the associated valve doc-
umentation.
9 Decommissioning and disas-
sembly
DANGER DANGER
! !
Risk of electric shock.
− Before performing any work on the device
and before opening the device, disconnect
the power supply and protect it against un-
intentional reconnection.
− Only use power interruption devices that
are protected against unintentional recon-
nection of the power supply.
EB 5757-7 EN