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Hydraulic Symbol Chart
Table
3.2 Hydraulic Symbol Chart
LINE CROSSING
LINE JOINED
MAIN LINES
Solid
PILOT LINES
Dashed
HYDRAULIC
TANK
HYDRAULIC
FILTER WITH
BYPASS
ELECTRIC
M
MOTOR
ENGINE
BI DIRECTIONAL
HYDRAULIC
MOTOR
VARIABLE
DISPLACEMENT
HYDRAULIC MOTOR
SERIES PARALLEL
HYDRAULIC
MOTOR
SJ82 T, SJ86 T
Section 3 – System Component Identification and Schematics
FIXED
DISPLACEMENT
PUMP
VARIABLE
DISPLACEMENT
PUMP
HAND PUMP
OIL COOLER
VELOCITY FUSE
RELIEF VALVE
PRESSURE
REDUCING
VALVE
PRESSURE
TRANSDUCER
FIXED ORIFICE
ADJUSTABLE
FLOW CONTROL
CHECK VALVE
SHUTTLE VALVE
PRESSURE
SWITCH
MOTION
CONTROL VALVE
FLOW DIVIDER
COMBINER
COUNTER
BALANCE VALVE
VALVE COIL
TWO POSITION
TWO WAY
NORMALLY
OPEN VALVE
TWO POSITION
TWO WAY
NORMALLY
CLOSED VALVE
TWO POSITION
THREE WAY VALVE
TWO POSITION
THREE WAY VALVE
THREE POSITION
FOUR WAY
CLOSED CENTER
CLOSED PORT
THREE POSITION
FOUR WAY
CLOSED CENTER
OPEN PORT
CUSHION
CYLINDER
DOUBLE ACTING
CYLINDER
DOUBLE ACTING
DOUBLE
RODDED
CYLINDER
BRAKE
CYLINDER
SPRING APPLIED
HYDRAULIC
RELEASED
BRAKE
ROTARY
ACTUATOR
SERVO
229040ABA
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