Samson 3277-5 - Notes on Possible Severe Personal Injury; Notes on Possible Personal Injury

1-4 EB 8310-1 EN
Safety instructions and measures
1.1 Notes on possible severe personal injury
DANGER
!
Risk of bursting in the actuator.
Actuatorsarepressurized.Improperopeningcanleadtoactuatorcomponentsburst-
ing.
Î Beforestartinganyworkontheactuator,depressurizeallplantsectionsaffected
and the actuator.
1.2 Notes on possible personal injury
WARNING
!
Crush hazard arising from moving parts.
Theactuatorcontainsmovingparts(actuatorstem),whichcaninjurehandsorngersif
inserted into the actuator.
Î Donottouchtheactuatorstemorinserthandsorngerintotheyokeorbeneaththe
actuator stem while the air supply is connected to the actuator.
Î While working on the actuator, disconnect and lock the pneumatic air supply as well
as the control signal.
Î Do not impede the movement of the actuator stem by inserting objects into the yoke.
Î Beforeunblockingtheactuatorstemafterithasbecomeblocked(e.g.duetoseizing
up after remaining in the same position for a long time), release any stored energy
in the actuator (e.g. spring compression). See 'Relieving the spring compression in
the actuator' in the 'Removal' section.
1)
If not described otherwise in the valve documentation, the work position for the control valve is the
front view looking onto the operating controls (including valve accessories).