Section E - Hydraulics
Operation Description
Introduction to Hydraulic Schematic Symbols
E-6 E-6
9803-9570-4
Table 6. Control Mechanisms
Rotating shaft - one direction
Rotating shaft - two directions
Detent
Locking device
Over centre device
Simple linkage
General control
Push button operated
Lever operated
Pedal operated
Stem operated
Spring operated
Roller operated
Roller trip operated (one
directional)
Solenoid one winding
Solenoid two windings
Electric motor operated
Internal pressure pilot
operated
External pressure pilot
operated
Pressure operated spring
release
Pilot operated by solenoid
pilot valve
Pilot operated by a solenoid
or seperate pilot valve
Pressure guage
Pressure switch
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