Samson 5824 - Removal; Force-Locking Attachment; Form-Fit Attachment

EB 5824-2 EN 12-1
Removal
12 Removal
The work described in this section is only to
be performed by personnel appropriately
qualiedtocarryoutsuchtasks.
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.
Risk of bursting in control valve compo-
nents due to incorrect opening.
Î Before starting any work on the control
valve, depressurize all plant sections af-
fected as well as the valve.
Î Drain the process medium from all the
plant sections affected.
Î Wear recommended personal protective
equipment (see associated valve docu-
mentation).
12.1 Force-locking attachment
1. Open front cover.
2. Disconnect and remove the wires of the
connection cables from the terminals.
3. Retract the actuator stem using the hand-
wheel (see the 'Operation' section).
Hold the actuating shaft of actuators with
fail-safe action in place after retracting the
actuator stem to prevent it from extending
again.
4. Unscrewthecouplingnut(4inFig.12-1)
and remove the actuator from the valve
connection.
12.2 Form-tattachment
1. Open front cover.
2. Disconnect and remove the wires of the
connection cables from the terminals.
3. Unfasten the stem connector clamps (16
inFig.12-1)betweentheactuatorstem
and the plug stem.
4. Retract the actuator stem using the hand-
wheel (see the 'Operation' section).
Hold the actuating shaft of actuators with
fail-safe action in place after retracting the
actuator stem to prevent it from extending
again.
5. Undothenut(17inFig.12-1)and
removetherod-typeyoke(15inFig.12-
1) together with the actuator from the
valve.
6. Undothecouplingnut(4inFig.12-1)
and remove the actuator from the rod-
typeyoke(15inFig.12-1).
DANGER
!
DANGER
!
Note
Note