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Installation, Operation and Maintenance Manual
MAN 564 Rev. 6
June 2020
Operation and Use
Section 3: Operation and Use
3.2
Residual risks
!
WARNING
It is recommended to pipe exhaust gas. The actuator has parts under pressure. Use the
due caution. Use individual protections provided for by the laws and provisions in force.
In case of an actuator with two cylinders (Figure 25), both mechanical stops are screwed
on the end flanges of the cylinders.
Figure 24
Mechanical stops
Figure 25
Actuator with two cylinders
3.3
Calibration of the Angular Stroke
The angular stroke of the yoke can be adjusted between 82°÷98° (±4° with respect to
the nominal positions of complete opening and closing) by means the mechanical stops
screwed into the left side of the housing (open valve) and into the end flange of the
pneumatic cylinder (closing) (Figure 24).
