8/10/2019 HIDRAULIC 330D
1/2
RENR9980-01
16
Page
RENR9980-01December 2006
330D ExcavatorHydraulic System
B6H1-UPMAG1-UPJLP1-UPHAS1-UPEDX1-UPT2Y1-UPLRM1-UP
2006 Caterpillar
All Rights Reserved
Printed in U.S.A.
Hydraulic Symbols (Electrical)
Electrical Symbols Table
325-AG135 PK-14
Circuit IdentificationNumber
W ir e C ol or W ir e G au ge
Harness identification codeThis example indicateswire 135 in
harness "AG".
325-PK-14
Wire Gauge
Wire Color
Circuit Number
Identification
Wire Number Identification Codes
Current Standard
Previous Standard
Electrical Schematic Example Hydraulic Schematic Example
325-PK
Wire ColorCircuit NumberIdentification
B A
Wire
Wire
(EXAMPLEVALVE)
Current Standard
Transducer(Fluid)
Transducer(Gas / Air)
G
Generator
Electrical WirePressure Switch
MElectric Motor
Pressure Switch(Adjustable)
Temperature Switch
T
PressureSymbol
TemperatureSymbol
LevelSymbol
FlowSymbol
Electrical Symbols (Electrical)
ONEPOSITION TWO POSITION THREEPOSITION
VENT ED PRESSURIZED RETURNABOVEFLUID LEVEL RETURNBELOWFLUID
LEVEL
LINESCROSSING LINESJOINING
TWO-WAY THREE-WAY FOUR-WAY
S PR IN G C ON TR OL V AL VE S RESTRICTION LINERESTRICTION
(FIXED)2-SECTIONPUMP
MAINAUX.
SPRING
(ADJUSTABLE)VARIABILITY LINERESTRICTION
(VARIABLE)LINERESTRICTION
VARIABLEand PRESSURECOMPENSATED
PRESSURE
COMPENSATION
PUMP: VARIABLEandPRESSURECOMPENSATED
ENERGYTRIANGLES
HYDRAULI C PNEUMATIC
MEASUREMENT
PRESSURE TEMPERATURE FLOW
ROTATING SHAFTS
UNIDIRECTIONAL BIDIRECTIONAL
PUSH-PULL LEVER PEDALGENERAL MANUAL PUSH BUTTON SPRING
MANUAL CONTROL SYMBOLS
HYDRAULICMOTORS
FIXED
DISPLACEMENT
VARIABLEDISPLACEMENT
NON-COMPENSATED
UNIDIRECTIONAL
BIDIRECTIONAL
HYDRAULICPUMPS
FLUIDSTORAGE RESERVOIRS
CROSSING ANDJOINING LINES
VALVE ENVELOPES VALVE PORTS
BASICCOMPONENT SYMBOLS
FLUIDCONDITIONERPUMPor MOTOR
FLUID POWER SYMBOLS
FIXED
DISPLACEMENT
VARIABLEDISPLACEMENT
NON-COMPENSATED
UNIDIRECTIONAL
BIDIRECTIONAL
VALVES
PILOT CONTROL SYMBOLSRELEASEDPRESSURE
EXTERNALRETURN INTERNALRETURN
REMOTESUPPLYPRESSURE
SIMPLIFIED COMPLETE INTERNAL
SUPPLYPRESSURE
ACCUMULATORS
SPRING LOADED GASCHARGED
SOLENOIDor MANUAL
SOLENOID
and PILOT
SOLENOIDandPILOTor MANUAL
COMBINATIONCONTROLS
SOLENOID SERVO THERMAL DETENT
HYDRAULICAND PNEUMATICCYLINDERS
DOUBLEACTINGSINGLEACTING
BASIC
SYMBOL
SPRING
LOADED
CHECK VALVES
TWO
POSITION
INFINITE
POSITIONING
FLOWINONEDIRECTION
FLOWALLOWEDIN
EITHERDIRECTION
THREE
POSITION
CROSS
FLOWPARALLEL
FLOW
INTERNAL PASSAGEWAYS
NORMALPOSITION
AB
PT
AB
PT
S H IF T E D PO S IT I O N I N FI N IT E P O SI T IO N
CONTROL VALVES
ATTACHMENT
MANUALSHUTOFF
SHUTTLE PILOTCONTROLLED
Heavy Lift and Fine Swing
DescriptionPart
Number
Machine
Location
Schematic
Location
ACCUMULATOR - HYDRAULIC (PILOT OIL) 164-6981 1 B-6
CYLINDER GP - BOOM 2 G-3
CYLINDER GP - BUCKET 3 G-10
G-9CYLINDER GP - STICK 4
F ILT ER G P - O IL ( HY DR AU LI C R ET UR N) 1 88 -4 14 0
5
A-9
FILTER GP - OIL (PILOT) 158-8987
6
A-5
FILTER GP- OIL(CASE DRAIN) 126-2075
7
MANIFOLD GP - CONTROL (PILOT OIL) 215-5037 B-88
MOTOR GP - PISTON 234-4638 A-109
PUMP GP - PISTON (HYDRAULIC FAN) 259-0815 B-412
A-6
10MOTOR GP - SWING 200-3373
11
G-8
MOTOR GP - TRAVEL 271-6376
13
G-5,G-7
14
PUMP GP - PISTON (MAIN) 283-6116
234-4440
15
B-3
F-6SWIVELGP
16
204-2819
17
F-5,F-7
VALVE GP - PILOT (TRAVEL) 270-5947
18
E-10
VALVE GP - SHUTTLE 185-0462
19
C-10
V ALVE GP - CH E C K (OILC OOLER BY PA S S) 190-7745
20
B-10
VALVE GP- LOAD CONTROL(STICK DRIFT RED, RELIEF LINE)
255-5680
21
E-7
VALVE GP- LOAD CONTROL
(BOOM DRIFT RED, RELIEF LINE)255-5683
22
E-3
VALVE GP - MAIN CONTROL 285-1540
23
259-7732 B-624
VALVE GP- SWING CUSHION (FINE SWING)
VALVE GP- TRAVELCOUNTERBALANCE
158-9090 F-826
VALVE GP - SOLENOID (HEAVY LIFT) 121-6303 B-625
D-2
27
VA LV E G P- PI LO T CO NT RO L( LE FT JO YS TI CK ) 2 70 -5 951
D -1 0
VA LV E G P- PI LO TC ON TR OL (R IG HT JO YS TI CK ) 2 70 -5
952 D -9
VALVE GP- PRESSURE REDUCING (BOOM,
SWING PRIORITY) 232-4102 B-6
COMPONENT LOCATIONS
MACHINE COMPONENT LOCATIONS
Tap Locations
Pressure, Sampling, and SensorTap
NumberDescription
Schematic
Location
AA PilotFilterPressure TestPort A-6
BB Drive Pump Pressure Test Port B-2
CC Power Shift Pressure Test Port A-2
SOS Hydraulic Oil Sampling Port A-5
DD Idler Pump Pressure Test Port A-2
NOTE A
NOTE A
NOTE A
Note A: Refer to Parts Manual for your specific machine.
19 2120
2
14
3
5
16
2711
12
9
2711 2610
22
25
13
7
4
6
23
17 18
15
8 24
1
Pump Compartment
(A) Delivery line (Drive Pump)
(B) Delivery line (IdlerPump)
(C) Drive Pump
(D) Idler Pump
11
27
18
16
9 DC
A B
17
7
5 6
10
26
14
MOTOR GP - PISTON (TRAVEL) FILTER GP
MOTOR GP - SWING & SWIVELVALVE GP - MAIN CONTROL
PUMP GP - PISTON (MAIN)
SOS AABB
CC
