Start-Up; Pneumatic Connection; Electrical Connection - Samson EB 8315 EN Mounting And Operation Instructions

6 Start-up

The work described in this section is only to
be performed by personnel appropriately
qualified to carry out such tasks.
DANGER
!
Risk of bursting due to incorrect opening of
pressurized equipment or components.
Pneumatic actuators are pressure equipment
that may burst when handled incorrectly.
Flying projectile fragments or components
can cause serious injury or even death.
Before working on the actuator:
Î Depressurize all plant sections concerned
and the actuator. Release any stored en-
ergy.
WARNING
!
Risk of personal injury due to preloaded
springs.
Actuators with preloaded springs are under
tension. Incorrect opening of the actuator
can lead to personal injury through the sud-
den and uncontrolled projection of parts.
Î Do not open the actuator housing.
WARNING WARNING
! !
Risk of personal injury due to exhaust air
being vented.
The actuator is operated with air. As a result,
air is vented during operation.
Î Wear eye and hearing protection when
working near the actuator.
EB 8315 EN
NOTICE
!
Risk of actuator damage due to excessively
high or low tightening torques.
Observe the specified torques when tighten-
ing actuator components. Excessive tighten-
ing torques lead to parts wearing out more
quickly. Parts that are not tightened far
enough may loosen.
Î Observe the specified tightening torques.
NOTICE
!
Risk of actuator damage due to the use of
unsuitable tools.
Î Only use tools approved by SAMSON.

6.1 Pneumatic connection

The customary fittings for metal and copper
pipes or plastic hoses can be used for the
supply air connection.
The exhaust air port is delivered fitted with a
vent plug. In versions with a positioner, this
port is fitted with a stainless steel check
valve.

6.2 Electrical connection

In versions with positioner or limit switch, al-
so connect the electric wiring in addition to
the pneumatic connection.
Î Connection of the Type 3724 Positioner
(u EB 8395)
Î Connection of the Type 4740 Limit Switch
(u EB 8357)
Start-up
6-1