390d excavator hydraulic system - attachment - one-way flow (interactive) 297-0308-00
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INTERACTIVE SCHEMATIC
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Cover PageInformation
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Electrical Symbols
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EC-C3EC-C2 E-C60
EC-C1
E-C61
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©2010 Caterpillar, All Rights Reserved Printed in U.S.A.
KENR7744November 2010
390D Excavator Hydraulic System - AttachmentWAG1-UPBYP1-UPWAP1-UPWBT1-UPKCZ1-UP
One-Way Flow
COMPONENT LOCATION
Description PartNumber
MachineLocation
SchematicLocation
335-0538335-0547212-5467210-8157
Note ANote ANote A
242-6878234-4531185-03366E-55346E-5534310-0122247-8978225-4614295-9447295-9446209-5895209-5895170-9918295-9678334-9990155-9222221-8859221-8859260-2180260-2180295-9595227-0678173-3429201-9382201-9381 241-8929295-7745140-0736352-6819116-3420155-9200155-9200
Attachment - One-Way FlowValve GP - Relief 165-9614
Note A: Check Parts Manual For Proper Cylinder Part Number
Accumulator GP - Charged (Return Line)Accumulator GP - Hydraulic (Charged)Breather GPCooler GP - Hydraulic OilCylinder GP - BoomCylinder GP - BucketCylinder GP - StickFilter GP - Oil (Hydraulic)(Return) 1Filter GP - Oil (Hydraulic)(Return) 2Filter GP - Oil (Hydraulic)Filter GP - Oil (Hydraulic)(Case Drain, Motors)Filter GP - Oil (Hydraulic)(Case Drain, Pumps)Manifold and Valve GP - Load SensingMotor GP - FanMotor GP - Hydraulic FanMotor GP - Swing (Front)Motor GP - Swing (Rear)Motor GP - Travel (Left)Motor GP - Travel (Right)Pump GP - Fan MotorPump GP - Hydraulic (Swing)Pump GP - Hydraulic (Main)Pump GP - PilotSensor AS - Pressure (Load Sensing)Sensor AS - Pressure (Overload Warning)Sensor AS - Pressure (Main Pump)Sensor AS - Pressure (Swing Pump)Swivel GPTank AS - Hydraulic OilValve GP - Check 1Valve GP - Check 2Valve GP - Check 3Valve GP - Control (Swing)Valve GP - Control (Main)Valve GP - Manifold and ReducingValve GP - Solenoid (High Pressure Cutoff)Valve GP - Swing CushionValve GP - Travel Counterbalance (Left)Valve GP - Travel Counterbalance (Right)
1 C-12 D-43 A-84 B-75 F-76 F-87 F-88 A-89 A-810 B-811 A-712 A-713 B-514 A-615 A-716 F-417 F-318 F-619 F-520 A-521 A-422 A-323 A-524 B-625 C-626 A-327 B-528 E-529 A-830 A-631 C-132 C-833 E-334 C-235 D-536 B-537 E-438 E-639 E-5
50 E-8
TAP LOCATION
TapNumber Description Schematic
LocationDrive Pump Output PressureIdler Pump Output PressureLoad Sense Pressure (Main Hydraulic Pump)Stroking Pressure (Swing Pump) Pilot Pump Output PressurePilot Pressure to Swing PumpPilot Accumulator PressurePower Shift Pressure (Main Hydraulic Pump)
A B-3B B-3
LS2 A-2M1 A-4P A-5P1 B-5PG D-4PS1 A-3
©2010 Caterpillar, All Rights Reserved
FLUID POWER SYMBOLS
ONE POSITION TWO POSITION THREE POSITION
VENTED PRESSURIZED RETURN ABOVE FLUID LEVEL RETURN BELOW FLUID LEVEL
LINES CROSSING LINES JOINING
TWO-WAY THREE-WAY FOUR-WAY
SPRING CONTROL VALVES RESTRICTION LINE RESTRICTION(FIXED)
2-SECTION PUMP
MAIN AUX.
SPRING(ADJUSTABLE)
VARIABILITY LINE RESTRICTION(VARIABLE)
LINE RESTRICTIONVARIABLE and PRESSURE
COMPENSATED
PRESSURECOMPENSATION
PUMP: VARIABLE andPRESSURE COMPENSATED
ENERGY TRIANGLESHYDRAULIC PNEUMATIC
MEASUREMENT
PRESSURE TEMPERATURE FLOW
ROTATING SHAFTS
UNIDIRECTIONAL BIDIRECTIONAL
PUSH-PULL LEVER PEDALGENERAL MANUAL PUSH BUTTON SPRING
MANUAL CONTROL SYMBOLS
HYDRAULIC MOTORS
FIXEDDISPLACEMENT
VARIABLE DISPLACEMENTNON-COMPENSATED
UNIDIRECTIONAL
BIDIRECTIONAL
HYDRAULIC PUMPS
FLUID STORAGE RESERVOIRS
CROSSING AND JOINING LINES
VALVE ENVELOPES VALVE PORTS
BASIC COMPONENT SYMBOLS
FLUID CONDITIONERPUMP or MOTOR
FIXEDDISPLACEMENT
VARIABLE DISPLACEMENTNON-COMPENSATED
UNIDIRECTIONAL
BIDIRECTIONAL
VALVES
PILOT CONTROL SYMBOLSRELEASED PRESSURE
EXTERNAL RETURN INTERNAL RETURN
REMOTE SUPPLY PRESSURE
SIMPLIFIED COMPLETE INTERNALSUPPLY PRESSURE
ACCUMULATORS
SPRING LOADED GAS CHARGED
SOLENOIDor MANUAL
SOLENOIDand PILOT
SOLENOID and PILOT or MANUAL
COMBINATION CONTROLS
SOLENOID SERVO THERMAL DETENT
HYDRAULIC AND PNEUMATIC CYLINDERS
DOUBLE ACTINGSINGLE ACTING
BASICSYMBOL
SPRINGLOADED
CHECK VALVES
TWOPOSITION
INFINITEPOSITIONING
FLOW IN ONEDIRECTION
FLOW ALLOWED INEITHER DIRECTION
THREEPOSITION
CROSSFLOW
PARALLELFLOW
INTERNAL PASSAGEWAYS
NORMAL POSITION
A B
P T
A B
P TSHIFTED POSITION INFINITE POSITION
CONTROL VALVES
ATTACHMENT
MANUAL SHUTOFF
SHUTTLE PILOTCONTROLLED
ELECTRICAL SYMBOLSHydraulic Symbols (Electrical)
325-AG135 PK-14
Circuit IdentificationNumber
Wire Color Wire Gauge
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 Number Identification
B A
Wire
Wire
(EXAMPLE VALVE)
Current Standard
Transducer(Fluid)
Transducer(Gas / Air)
G
Generator
Electrical WirePressure Switch
MElectric Motor
Pressure Switch (Adjustable)
Temperature Switch
PressureSymbol
TemperatureSymbol
LevelSymbol
FlowSymbol
Electrical Symbols (Electrical)
T
F8
E8
D8
C8
B8
A8
F7
E7
D7
C7
B7
A7
F6
E6
D6
C6
B6
A6
F5
E5
D5
C5
B5
A5
F4
E4
D4
C4
B4
A4
F3
E3
D3
C3
B3
A3
F2
E2
D2
C2
B2
A2
F1
E1
D1
C1
B1
A1
HYDRAULIC CIRCUIT COLOR DESCRIPTIONSPILOT PUMP OUTPUTDRIVE PUMP OUTPUTHIGH PRESSURE CUTOFF CIRCUITDRIVE AND IDLER PUMPS COMBINED CIRCUITFAN PUMP AND CIRCUITSUPPLY LINESTICK CYLINDER & CONTROL CIRCUITLEFT TRAVEL MOTOR & CONTROL CIRCUITATTACHMENT CONTROL CIRCUITSWING MOTOR & CONTROL CIRCUITDRAIN / RETURN LINESWING BRAKESIDLER PUMP OUTPUT BUCKET CYLINDER & CONTROL CIRCUITRIGHT TRAVEL MOTOR & CONTROL CIRCUITBOOM CYLINDER & CONTROL CIRCUIT
LINE PATTERNS
Drain / Return Lines
Component Group
Pilot / Load Sensing Pressure
Pressure Line
CALLOUTS
Taps (Pressure, Sampling, Sensor - by letter)YY
Components are shown installed on a fully operable machine with the key and engine off, transmission shifterin neutral and with parking brake set.Refer to the appropriate Service Manual for Troubleshooting, Specifications and Systems Operations.
390D EXCAVATOR HYDRAULIC SYSTEM
PART NUMBER: 297-0308, CHANGE: 00, VERSION: HE
MEDIA NUMBER : KENR7744ATTACHMENT : ONE WAY FLOW
12345678
A
B
C
D
E
F
12345678
A
B
C
D
E
F
TRAVEL MOTOR (RIGHT)TRAVEL MOTOR (LEFT)
Pi5
Pi4
Pi3
Pi2
Pi1
PSA4
PSA3
PSA2
PSA1
PAC
DR1
DR2
DR3
DR4
DR5
DR6P-INT-OUT
Pi6
DR6
DR5
GT2T1 RA
M2
A
S DR1 DR S M1
L2
L1
P2
D2S1D1
P1PS1 SA1 SA2a1 a2
LS1 LS2
AL3 BL3
PP3
T1
T2
BG
BA
AGBG AG
AB
T2
T1
PP3
A
DR
B
DR
A B
DR1
PS2
Pi1
P.P.I
P.P.O
SWING MOTOR (FRONT) SWING MOTOR (REAR)DB
PG
SDr2PTSDr1
MM
PG2 DBPG1
PBPA
B
BA
PA PB
A
A1 B1A1 B1
(R) (L)
(R)(L)
(FWD)(FWD) (BKWD)(BKWD)
L1G
Dr
L2
T
C1
C2
P
Dr
PF PR
BR2 AR2 BR3 AR3
AL2 BL2
AL1 BL1
PR
PF
AR1BR1
BR2 AR2 BR3 AR3
A
BLBRL BRA
B
Qmax Qmin
(BKWD)(BKWD)(IN)
(FWD)(FWD)(OUT)
STIC
K
TRAV
EL(L
)
TRAV
EL(R
)
(CLOSE) (UP)
(OPEN) (DOWN)
BOOM
BUCK
ET
ATCH
HPC-ON
aR3aR2aR1
bR3bR2bR1R2
aL1aL2aL3
bL1bL2bL3R1 HPC-OFF
(RET)
(EXT)
PS2
PS2
PS3
PS3 DR3
DR3 DR2
DR2
PS4 DR4
Pi2
Pi2
DR4
MU
PS4
AL1 BL1
BR1AR1AL2 BL2
MU
SP
PRPD
PG
PB
SINGLESINGLE
(1) ACCUMULATOR GP CHARGED(RETURN LINE)335-0538
(2) ACCUMULATOR GP HYDRAULIC (CHARGED)335-0547
(8) FILTER GPOIL (HDRAULIC)
(RETURN) 1242-6878
(9) FILTER GPOIL (HYDRAULIC)
(RETURN) 2234-4531
(10) FILTER GPOIL (HYDRAULIC)
185-0336
(11) FILTER GPOIL (HYDRAULIC) (CASE DRAIN, MOTORS)6E-5534
(13) MANIFOLD AND VALVE GPLOAD SENSING310-0122
(14) MOTOR GPFAN
247-8978
(15) MOTOR GP HYDRAULIC FAN225-4614
(16) MOTOR GP SWING (FRONT)295-9447
(17) MOTOR GP SWING (REAR)295-9446
(18) MOTOR GP TRAVEL (LEFT)
209-5895
(19) MOTOR GP TRAVEL (RIGHT)209-5895
(20) PUMP GP FAN MOTOR
170-9918
(21) PUMP GP HYDRAULIC SWING295-9678
(22) PUMP GP HYDRAULIC (MAIN)334-9990
(23) PUMP GP PILOT
155-9222
(28) SWIVEL GP295-9595
(30) VALVE GP CHECK 1173-3429
(31) VALVE GP CHECK 2201-9382
(32) VALVE GPCHECK 3201-9381
(33) VALVE GPCONTROL (SWING)241-8929
(34) VALVE GP CONTROL (MAIN)295-7745
(35) VALVE GP MANIFOLD AND REDUCING
140-0736
(36) VALVE GPSOLENOID (HIGH PRESSURE CUTOFF)352-6819
(37) VALVE GP SWING CISHION116-3420
(38) VALVE GP TRAVEL COUNTERBALANCE (LEFT)
155-9200(39) VALVE GP TRAVEL COUNTERBALANCE (RIGHT)155-9200
LS2
PS1
M1
P
P1 BA
PG
(26) SENSOR AS PRESSURE(MAIN PUMP)260-2180
(27) SENSOR AS PRESSURE
(SWING PUMP)260-2180
(25) SENSOR ASPRESSURE
(OVER LOADWARNING)221-8859
(24) SENSOR ASPRESSURE
(LOAD SENSING)221-8859
(3) BREATHER GP212-5467
(4) COOLER GP HYDRAULIC OIL210-8157
(29) TANK ASHYDRAULIC OIL
227-0678
(12) FILTER GPOIL (HYDRAULIC) (CASE DRAIN, PUMPS)6E-5534
(5) CYLINDER GPBOOM
(7) CYLINDER GPSTICK(6) CYLINDER GP
BUCKET
(50) VALVE GPRELIEF165-9614
COMPONENT LOCATIONS
3938
37
34
33
30
29
28
27
26
24
23
22
2120
19
18
1716
1514
13
12
11
10
9
8
7
6
5
4
3
PS1
P
P1
M1
LS2
BA
MAIN CONTROL COMPONENT LOCATIONS
REAR VIEW
FRONT VIEW
36
35
32
31
25
2
1
PG
ONE-WAY FLOW
50
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