Samson 3375-10 - 11 Removal

EB 8332-1 EN 11-1
Removal
11 Removal
Risk of fatal injury due to electric shock.
Î Before disconnecting live wires, switch
off the supply voltage at the actuator and
protect it against unintentional reconnec-
tion.
Actuator without fail-safe action
1. Disconnect the supply voltage and pro-
tect it against unintentional reconnection.
2. Make sure that a signal from the control-
ler cannot act upon the actuator. If neces-
sary, disconnect the wires connecting the
controller.
3. Disconnect the wires of the connecting
lines at the actuator.
4. Remove the connecting lines.
5. Retract actuator stem as described in the
'Operation' section.
6. Undo the stem connector parts between
the plug and actuator stems.
7. Unscrew the ring nut on the valve bon-
net.
8. Lift the actuator off the valve.
Î Use suitable lifting equipment.
Actuator with "stem extends" fail-safe
action
1. Make sure that a signal from the control-
ler cannot act upon the actuator. If neces-
sary, disconnect the wires connecting the
controller.
2. Retract actuator stem as described in the
'Operation' section.
3. Undo the stem connector parts between
the plug and actuator stems.
4. Unscrew the ring nut on the valve bon-
net.
5. Disconnect the supply voltage and pro-
tect it against unintentional reconnection.
Î The actuator stem moves to the fail-safe
position.
6. Lift the actuator off the valve.
Î Use suitable lifting equipment.
7. Disconnect the wires of the connecting
lines.
8. Remove the connecting lines.
Actuator with "stem retracts" fail-safe
action
1. Disconnect the supply voltage and pro-
tect it against unintentional reconnection.
Î The actuator stem moves to the fail-safe
position.
2. Make sure that a signal from the control-
ler cannot act upon the actuator. If neces-
sary, disconnect the wires connecting the
controller.
3. Disconnect the wires of the connecting
lines.
4. Remove the connecting lines.
5. Undo the stem connector parts between
the plug and actuator stems.
6. Unscrew the ring nut on the valve bon-
net.
7. Lift the actuator off the valve.
DANGER
!