26
Installation, Operation and Maintenance Manual
MAN 564 Rev. 6
June 2020
Operation and Use
Section 3: Operation and Use
Figure 23
Pneumatic operation
The diagram is drawn with actuator under pneumatic
operation in opening. The flow regulator Fa allows control
of the stroke time.
Manual operation
The diagram is drawn with actuator under manual
operation towards open. The operation to be performed
is selected by the directional control valve D.
Pneumatic
connection
to open
Pneumatic
connection
to close
Pneumatic
connection
to open
Pneumatic
connection
to close
Scotch yoke mechanism
Pneumatic cylinde
Hydraulic cylinder
Hydraulic manual override
High pressure oil
Intermediate pressure oil
Low pressure oil
Pressurized air
Atmospheric pressure air
Ra = Relief valve for automatic operation
Rm = Relief valve for manual operation
P = Handpump
D = Hand operated directional control valve
Fa = Unidirectional flow regulator (opening operation)
Fc = Unidirectional flow regulator (closing operation)
Fr = Bidirectional flow regulator
C v = Check valve
Ot = Oil tank
Ls = Level stick with relief valve