4-001
HYDRAULIC SYSTEMS
1. SYSTEM CIRCUIT DIAGRAM
1-1. Graphic Symbols for Hydraulic Circuits
Basic Symbols
DESCRIPTION
SYMBOL
Lines:
Main working
Pilot control
Drain or bleed
Lines, joining
Not connected
Component outline
Arrow indicates direction
of
fl
ow.
Line with
fi
xed restriction
(ori
fi
ce).
Test port, pressure
measurement.
Temperature measure-
ment gauge
Pressure measurement
gauge
Reservoir (vented)
Filter or strainer
Heat exchanger, lines in-
dicate
fl
ow of coolant.
Quick disconnect:
Connected with mechan-
ically opened checks.
Disconnected.
Sloping arrow through a
symbol at 45° indicates
that a component can be
adjusted or varied.
Pump, Motors and Cylinders
DESCRIPTION
SYMBOL
Hydraulic pumps:
Fixed displacement
Unidirectional
Bidirectional
Variable displacement
Unidirectional
Bidirectional
Variable displace-
ment pressure com-
pensated
Unidirectional
Hydraulic Motor:
Unidirectional
Bidirectional
Double acting hydraulic
cylinder
Differential cylinder
Electric motor
04̲HYDRAULIC̲SYSTEMS.indb 4-001
04̲HYDRAULIC̲SYSTEMS.indb 4-001
2012/11/15 16:46:00
2012/11/15 16:46:00
Summary of Contents for SW300-1
Page 14: ...01 SAFETY P001 010 indd 2 01 SAFETY P001 010 indd 2 2012 11 20 8 18 16 2012 11 20 8 18 16...
Page 22: ...01 SAFETY P001 010 indd 10 01 SAFETY P001 010 indd 10 2012 11 20 8 18 17 2012 11 20 8 18 17...
Page 102: ...06 VIBRATORY DRUM indb 2 06 VIBRATORY DRUM indb 2 2012 11 20 8 26 03 2012 11 20 8 26 03...
Page 112: ...06 VIBRATORY DRUM indb 12 06 VIBRATORY DRUM indb 12 2012 11 20 8 26 04 2012 11 20 8 26 04...
Page 114: ...06 VIBRATORY DRUM indb 14 06 VIBRATORY DRUM indb 14 2012 11 20 8 26 04 2012 11 20 8 26 04...
Page 149: ...BRAKE 07 BRAKE P000 002 indd 7 07 BRAKE P000 002 indd 7 2012 10 05 9 39 43 2012 10 05 9 39 43...
Page 156: ...08 SPRAY SYSTEMS indb 2 08 SPRAY SYSTEMS indb 2 2012 10 17 10 41 15 2012 10 17 10 41 15...
Page 158: ...08 SPRAY SYSTEMS indb 4 08 SPRAY SYSTEMS indb 4 2012 10 17 10 41 16 2012 10 17 10 41 16...
Page 160: ...08 SPRAY SYSTEMS indb 6 08 SPRAY SYSTEMS indb 6 2012 10 17 10 41 16 2012 10 17 10 41 16...
Page 162: ...08 SPRAY SYSTEMS indb 8 08 SPRAY SYSTEMS indb 8 2012 10 17 10 41 16 2012 10 17 10 41 16...