Samson 3241 Series - WARNING: Risk of Hearing Loss or Deafness Due to Loud Noise; WARNING: Crush Hazard Arising from Actuator and Plug Stem Moving; WARNING: Risk of Personal Injury Due to Exhaust Air Being Vented; WARNING: Risk of Personal Injury Due to Preloaded Springs

9-2 EB 8015 EN
Servicing
Î Do not impede the movement of the actu-
ator and plug stem by inserting objects
into the yoke.
Î Before unblocking the actuator and plug
stem after they have 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
associated actuator documentation.
Risk of personal injury due to exhaust air
being vented.
While the valve is operating, the actuator,
for example, may vent during closed-loop
operation or when the valve opens or closes.
Î Wear eye protection when working in
close proximity to the control valve.
Risk of personal injury due to preloaded
springs.
Actuators with preloaded springs are under
tension. They can be identied by the long
bolts protruding from the bottom of the actu-
ator.
Î Before starting any work on the actuator,
relieve the compression from the pre-
loaded springs (see associated actuator
documentation).
Risk of personal injury due to residual pro-
cess medium in the valve.
While working on the valve, residual me-
dium can ow out of the valve and, depend-
ing on its properties, cause personal injury,
e.g. (chemical) burns.
Î Wear protective clothing, safety gloves,
respiratory protection and eye protec-
tion.
Risk of valve damage due to excessively
high or low tightening torques.
Observe the specied torques when tighten-
ing control valve components. Excessive
tightening torques lead to parts wearing out
more quickly. Parts that are too loose may
cause leakage.
Î Observe the specied tightening torques
(uAB0100).
Risk of valve damage due to the use of
unsuitable tools.
Î Only use tools approved by SAMSON
(uAB0100).
Risk of valve damage due to the use of
unsuitable lubricants.
Î Only use lubricants approved by
SAMSON (uAB0100).
WARNING
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WARNING
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WARNING
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WARNING
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WARNING
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NOTICE
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NOTICE
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NOTICE
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