diagrama electrico 320 D -2.pdf
2
RENR7404-06 October 2009 System 2: Combined Function 320D and 323D Excavator Hydraulic System - Attachment 320D: MDE1-UP A6F1-UP A8F1-UP A9F1-UP KGF1-UP MGG1-UP TDH1-UP FAL1-UP KLM1-UP JFZ1-UP JGZ1-UP 323D: PBE1-UP LFL1-UP Printed in U.S.A. © 2009 Caterpillar, All Rights Reserved 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) PUMP (2 - SECTION) SPRING (ADJUSTABLE) VARIABILITY LINE RESTRICTION (VARIABLE) PRESSURE COMPENSATION PUMP (VARIABLE & PRESSURE COMPENSATED) MEASUREMENT PRESSURE TEMPERATURE FLOW ROTATING SHAFTS UNIDIRECTIONAL BIDIRECTIONAL PUSH - PULL LEVER PEDAL GENERAL MANUAL PUSH BUTTON SPRING FIXED DISPLACEMENT VARIABLE DISPLACEMENT NON-COMPENSATED UNIDIRECTIONAL BIDIRECTIONAL VALVE ENVELOPES VALVE PORTS FLUID CONDITIONER PUMP OR MOTOR FLUID POWER SYMBOLS UNIDIRECTIONAL BIDIRECTIONAL RELEASED PRESSURE EXTERNAL RETURN INTERNAL RETURN REMOTE SUPPLY PRESSURE SIMPLIFIED HYDRAULIC PUMPS ACCUMULATORS SPRING LOADED GAS CHARGED SOLENOID OR MANUAL SOLENOID & PILOT SOLENOID & PILOT OR MANUAL SOLENOID SERVO THERMAL DETENT HYDRAULIC & PNEUMATIC CYLINDERS DOUBLE ACTING SINGLE ACTING BASIC SYMBOL SPRING LOADED CHECK VALVES 2 POSITION INFINITE POSITIONING FLOW IN ONE DIRECTION FLOW IN EITHER DIRECTION 3 POSITION CROSS FLOW PARALLEL FLOW INTERNAL PASSAGEWAYS NORMAL POSITION AB P T AB PT SHIFTED POSITION INFINITE POSITION CONTROL VALVES ATTACHMENT MANUAL SHUTOFF SHUTTLE PILOT CONTROLLED MAIN AUX LINE RESTRICTION (VARIABLE & PRESSURE COMPENSATED) MANUAL CONTROL SYMBOLS HYDRAULIC MOTORS FLUID STORAGE RESERVOIRS CROSSING & JOINING LINES VALVES PILOT CONTROL SYMBOLS COMBINATION CONTROLS BASIC COMPONENT SYMBOLS ENERGY TRIANGLES HYDRAULIC PNEUMATIC INTERNAL SUPPLY PRESSURE COMPLETE FIXED DISPLACEMENT VARIABLE DISPLACEMENT NON-COMPENSATED HYDRAULIC SYMBOLS (ELECTRICAL) ELECTRICAL SYMBOLS TABLE 325-AG135 PK-14 HARNESS IDENTIFICATION CODE THIS EXAMPLE INDICATES WIRE 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 COLOR CIRCUIT NUMBER IDENTIFICATION B WIRE WIRE (EXAMPLE VALVE) CURRENT STANDARD TRANSDUCER (FLUID) M ELECTRIC MOTOR TRANSDUCER (GAS / AIR) G GENERATOR PRESSURE SWITCH ELECTRICAL WIRE PRESSURE SWITCH (ADJUSTABLE) TEMPERATURE SWITCH PRESSURE SWITCH TEMPERATURE SWITCH LEVEL SWITCH FLOW SWITCH ELECTRICAL SYMBOLS (ELECTRICAL) A CIRCUIT NUMBER IDENTIFICATION WIRE COLOR WIRE GAUGE T RENR7404-06 24 Page, (Dimensions: 34 inches x 28 inches) Description Part Number Machine Location Schematic Location F-6 Accumulator Gp - Pilot Manifold Note B 20 B-4 Block Note B 21 C-7 Cylinder Gp - Boom Note A 22 E-1 Cylinder Gp - Stick Note A 24 E-2 Filter Gp - Case Drain Note B 25 A-3, A-4 Filter Gp - Pilot Hydraulic Note B 26 A-4 Filter Gp - Return Oil Note B 27 A-5 Manifold Gp - Control Note B 28 B-4, B-5 Motor Gp - Swing Note B 29 F-5 Motor Gp - Left Travel Note B 30 F-3 Motor Gp - Right Travel Note B 31 F-2 Pump Gp - Main Hydraulic Note B 32 B-2 Sensor As - Left Pump Pressure Note B 33 B-2 Sensor As - Right Pump Pressure Note B 34 A-2 Switch As - LH Travel Pressure Note B 35 E-7 Switch As - Pilot Pressure Note B 36 A-7 Switch As - RH Travel Pressure Note B 37 E-6 Swivel Gp Note B 38 E-3 Tank Gp - Hydraulic Oil Note B 39 A-5 Valve Gp - Cooler Bypass Note B 40 A-6 Valve Gp - LH Joystick Note B 41 B-7 Valve Gp - Load Control Boom Cylinder Note B 42 D-1 Valve Gp - Load Control Stick Cylinder Note B 43 D-5 Valve Gp - Main Control Note B 44 C-1 thru C-5 Valve Gp - Pilot Travel Note B 3 E-6, E-7 Valve Gp - Pressure Reducing Boom/Swing Note B 45 B-3, B-4 Valve Gp - RH Joystick Note B 47 B-6 Valve Gp - Shuttle Note B 48 A-6, A-7 Valve Gp - Swing Cushion Note B 49 E-5 Component Locations Attachment: System 2 Standard Machine Valve Gp - Travel LT Counterbalance Note B 50 E-3 Valve Gp - Travel RT Counterbalance Note B 51 E-2 Cylinder Gp - Bucket Note A 23 E-2 Valve Gp - Negative Flow Control 171-0188 D-1, E-1 Valve Gp - Solenoid (1-Pump/2-pump, 1-way/2-way) 165-9549 F-7 Valve Gp - Pilot (Left Control) F-4 46 Valve Gp - Relief 206-3336 177-2653 5 F-6 4 Valve Gp - Pilot (Right Control) 206-3336 Valve Gp - Control (Right) 259-7378 C-6 Valve Gp - Solenoid (EC-1) 215-4890 6 2 8 1 F-4 Valve Gp - Solenoid (EC-2) 215-4890 7 F-4 Note A: Refer to parts manual for specific cylinder information. Note B: Part numbers are located on the main Hydraulic System Schematic according to the effectivity of the machine. Tap Locations Pressure, Sampling, and Sensor Tap Number Description Schematic Location EE Left Pump Delivery Pressure B-2 FF Right Pump Delivery Pressure A-2 GG Pilot Pump Delivery Pressure A-3 HH Left Pump Power Shift Pressure B-2 JJ Case Drain Pressure B-2 KK Right Pump Power Shift Pressure A-2 SOS Hydraulic Oil Sampling Port A-3 LL Left Pump Negative Flow Signal Pressure E-1 MM Right Pump Negative Flow Signal Pressure D-1 FF KK JJ EE HH GG SOS MACHINE COMPONENT LOCATIONS MAIN PUMP AND FILTER CIRCUITS HYD. TANK B VIEW B TOP VIEW RIGHT SIDE VIEW FWD SYSTEM 2 2 32 50 30 40 7 47 41 21 48 36 37 45 4 35 3 22 24 2 23 22 29 49 38 44 43 42 2 1 46 28 20 34 33 32 31 8 51 26 25 27 39 5 40 44 43 2 1 42 39 24 23 3 4 35 37 45 21 36 48 29 49 38 5 6 7 30 50 31 51 32 34 33 25 8 26 27 LL MM 8 2 32 2 44 29 5 6 7 1 2 32 27 26 25 34 33 47 41 22 20 46 28 6
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Transcript of diagrama electrico 320 D -2.pdf
RENR7404-06October 2009
System 2: Combined Function
320D and 323D ExcavatorHydraulic System - Attachment320D:MDE1-UPA6F1-UPA8F1-UPA9F1-UPKGF1-UPMGG1-UPTDH1-UPFAL1-UPKLM1-UPJFZ1-UPJGZ1-UP
323D:PBE1-UPLFL1-UP
Printed in U.S.A.© 2009 Caterpillar, All Rights Reserved
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)
PUMP(2 - SECTION)
SPRING(ADJUSTABLE)
VARIABILITY LINE RESTRICTION(VARIABLE)
PRESSURECOMPENSATION
PUMP(VARIABLE & PRESSURE
COMPENSATED)
MEASUREMENT
PRESSURE TEMPERATURE FLOW
ROTATING SHAFTS
UNIDIRECTIONAL BIDIRECTIONAL
PUSH - PULL LEVER PEDALGENERAL MANUAL PUSH BUTTON SPRING
FIXEDDISPLACEMENT
VARIABLE DISPLACEMENTNON-COMPENSATED
UNIDIRECTIONAL
BIDIRECTIONAL
VALVE ENVELOPES VALVE PORTS
FLUID CONDITIONERPUMP OR MOTOR
FLUID POWER SYMBOLS
UNIDIRECTIONAL
BIDIRECTIONAL
RELEASED PRESSURE
EXTERNAL RETURN INTERNAL RETURN
REMOTE SUPPLY PRESSURE
SIMPLIFIED
HYDRAULIC PUMPS
ACCUMULATORS
SPRING LOADED GAS CHARGED
SOLENOID OR MANUAL
SOLENOID & PILOT
SOLENOID &PILOT OR MANUAL
SOLENOID SERVO THERMAL DETENT
HYDRAULIC & PNEUMATIC CYLINDERS
DOUBLE ACTINGSINGLE ACTING
BASICSYMBOL
SPRINGLOADED
CHECK VALVES
2 POSITIONINFINITE
POSITIONING
FLOW IN ONEDIRECTION
FLOW INEITHER
DIRECTION
3 POSITION
CROSSFLOW
PARALLELFLOW
INTERNAL PASSAGEWAYS
NORMAL POSITION
A B
P T
A B
P TSHIFTED POSITION INFINITE POSITION
CONTROL VALVES
ATTACHMENT
MANUAL SHUTOFF
SHUTTLE PILOTCONTROLLED
MAIN AUX
LINE RESTRICTION(VARIABLE & PRESSURE
COMPENSATED)
MANUAL CONTROL SYMBOLS
HYDRAULIC MOTORS
FLUID STORAGE RESERVOIRS
CROSSING & JOINING LINES
VALVES
PILOT CONTROL SYMBOLS
COMBINATION CONTROLS
BASIC COMPONENT SYMBOLS
ENERGY TRIANGLESHYDRAULIC PNEUMATIC
INTERNALSUPPLY PRESSURE
COMPLETE
FIXEDDISPLACEMENT
VARIABLE DISPLACEMENTNON-COMPENSATED
HYDRAULIC SYMBOLS (ELECTRICAL)
ELECTRICAL SYMBOLS TABLE
325-AG135 PK-14
HARNESS IDENTIFICATION CODE THIS EXAMPLEINDICATES WIRE 135 IN HARNESS “AG”
325-PK-14
WIRE GAUGE
WIRE COLOR
CIRCUIT NUMBERIDENTIFICATION
WIRE NUMBER IDENTIFICATION CODES
CURRENT STANDARD
PREVIOUS STANDARD
ELECTRICAL SCHEMATIC EXAMPLE HYDRAULIC SCHEMATIC EXAMPLE
325-PK
WIRE COLORCIRCUIT NUMBER
IDENTIFICATION
B
WIRE
WIRE
(EXAMPLE VALVE)
CURRENT STANDARD
TRANSDUCER(FLUID)
MELECTRIC MOTORTRANSDUCER
(GAS / AIR)
G
GENERATOR
PRESSURE SWITCH ELECTRICAL WIREPRESSURE SWITCH(ADJUSTABLE)
TEMPERATURESWITCH
PRESSURESWITCH
TEMPERATURESWITCH
LEVELSWITCH
FLOWSWITCH
ELECTRICAL SYMBOLS (ELECTRICAL)
A
CIRCUIT NUMBERIDENTIFICATION
WIRECOLOR
WIRE GAUGE
T
RE
NR
7404-0
624 P
ag
e,
(Dim
en
sio
ns:
34 i
nch
es x
28 i
nch
es)
Description PartNumber
MachineLocation
SchematicLocation
F-6
Accumulator Gp - Pilot Manifold Note B 20 B-4Block Note B 21 C-7Cylinder Gp - Boom Note A 22 E-1
Cylinder Gp - Stick Note A 24 E-2Filter Gp - Case Drain Note B 25
A-3, A-4Filter Gp - Pilot Hydraulic Note B 26A-4
Filter Gp - Return Oil Note B 27 A-5Manifold Gp - Control Note B 28 B-4, B-5Motor Gp - Swing Note B 29 F-5Motor Gp - Left Travel Note B 30 F-3Motor Gp - Right Travel Note B 31 F-2Pump Gp - Main Hydraulic Note B 32 B-2Sensor As - Left Pump Pressure Note B 33 B-2Sensor As - Right Pump Pressure Note B 34 A-2Switch As - LH Travel Pressure Note B 35 E-7Switch As - Pilot Pressure Note B 36 A-7Switch As - RH Travel Pressure Note B 37 E-6Swivel Gp Note B 38 E-3Tank Gp - Hydraulic Oil Note B 39 A-5Valve Gp - Cooler Bypass Note B 40 A-6Valve Gp - LH Joystick Note B 41 B-7Valve Gp - Load Control Boom Cylinder Note B 42 D-1Valve Gp - Load Control Stick Cylinder Note B 43 D-5Valve Gp - Main Control Note B 44 C-1 thru C-5Valve Gp - Pilot Travel Note B
3
E-6, E-7Valve Gp - Pressure Reducing Boom/Swing Note B
45B-3, B-4
Valve Gp - RH Joystick Note B 47 B-6Valve Gp - Shuttle Note B 48 A-6, A-7Valve Gp - Swing Cushion Note B 49 E-5
Component Locations
Attachment: System 2
Standard Machine
Valve Gp - Travel LT Counterbalance Note B 50 E-3Valve Gp - Travel RT Counterbalance Note B 51 E-2
Cylinder Gp - Bucket Note A 23 E-2
Valve Gp - Negative Flow Control 171-0188 D-1, E-1
Valve Gp - Solenoid (1-Pump/2-pump, 1-way/2-way) 165-9549 F-7
Valve Gp - Pilot (Left Control)
F-4
46
Valve Gp - Relief
206-3336
177-2653 5F-64Valve Gp - Pilot (Right Control) 206-3336
Valve Gp - Control (Right) 259-7378 C-6
Valve Gp - Solenoid (EC-1) 215-4890 6
2
8
1
F-4Valve Gp - Solenoid (EC-2) 215-4890 7 F-4
Note A: Refer to parts manual for specific cylinder information.
Note B: Part numbers are located on the main Hydraulic System Schematic according to the effectivity of the machine.
Tap LocationsPressure, Sampling, and Sensor
TapNumber Description Schematic
LocationEE Left Pump Delivery Pressure B-2FF Right Pump Delivery Pressure A-2GG Pilot Pump Delivery Pressure A-3HH Left Pump Power Shift Pressure B-2JJ Case Drain Pressure B-2KK Right Pump Power Shift Pressure A-2
SOS Hydraulic Oil Sampling Port A-3
LL Left Pump Negative Flow Signal Pressure E-1MM Right Pump Negative Flow Signal Pressure D-1
FF
KK JJ EE
HH
GG
SOS
MACHINE COMPONENT LOCATIONS MAIN PUMP AND FILTER CIRCUITS
HYD.TANK
B
VIEW B
TOP VIEW
RIGHT SIDE VIEW
FWD
SYSTEM 2
2 32
5030 40 7 47 41 21 4836
37 454
353
22 24
2
2322
2949
38
44434221
462820
343332
31 851 26
2527
39 5
40 444321
42 39 24
233 435 37 45
2136 48
2949
3856 7
3050
3151
323433
25826 27
LL
MM
8
2
32 2
44 29 5 6 7
1
2
32
27
26253433
4741
22
204628
6
DRAIN / RETURN LINE
HYDRAULIC CIRCUIT COLOR DESCRIPTIONSRIGHT MAIN PUMP OUTPUT
LEFT MAIN PUMP OUTPUT
LEFT AND RIGHT MAIN PUMP POWERSHIFT CIRCUIT
PILOT PUMP OUTPUT
ATTACHMENT CONTROL CIRCUIT
SUPPLY LINE
BUCKET CYLINDER CONTROL CIRCUIT
RIGHT TRAVEL MOTOR CONTROL CIRCUIT
TRAVEL SPEED CONTROL CIRCUIT
STICK CYLINDER CONTROL CIRCUIT
BOOM CYLINDER CONTROL CIRCUIT
HEAVY LIFT CONTROL CIRCUIT
LEFT TRAVEL MOTOR CONTROL CIRCUITSWING MOTOR CONTROL CIRCUIT
SWING BRAKE CONTROL CIRCUIT
LINE PATTERNS
Drain / Return Lines
Component Group
Pilot / Load Sensing Pressure
Pressure Line
Attachment
Air Line
CALLOUTS
Taps (Pressure, Sampling,Sensor) by letter
Components by number
YY
52
R.C.V. : RETURN CHECK VALVE
NOTES
RE
NR
7404-0
624 P
ag
e,
(Dim
en
sio
ns:
34 i
nch
es x
28 i
nch
es)
THIS SCHEMATIC IS FOR THE 320D AND 323D EXCAVATOR ATTACHMENT: SYSTEM 2 COMBINED FUNCTIONMEDIA NUMBER: RENR7404-06 PART NUMBER: 259-7476, CHANGE: 01, VERSION: HEComponents are shown installed on a fully operable machine.
Refer to the appropriate Service Manual for Troubleshooting, Specifications.
A
B
C
D
E
F
1234567
A
B
C
D
E
F
1234567
GG SOS FF
EE
HH
JJ
KK
LL
MM
TRAVEL(L) TRAVEL(R)
T1 T5BACKFWDBACK FWD
T2 T4 T6 T3
JLP JLT
STICK SWING
OUTJL1
INJL3
R LJL2 JL4
BUCKET BOOM
OPEN CLOSE DOWN UPJR1JR2 JR3JR4
JRPJRT
Di2 Pi2 Pi3 Di3 DST Di1
T aL4
SPi
SDrSP3
Di4 Pi4 Pi1
BP3
BDrBPi BP2
R3aR5
AR5
BR
5
AR2BR2aL3
P
T
A1
A2
B1
B2
SINGLE
DOUBLE
SINGLE
DOUBLE
SWING MOTOR
G1 M1
A3
A1
S1
S3
A2
Pm
Pn1
Pn2
Ps2
Ps1PsM1
G3
Dr1
Dr2
G4PsM2
E F
G
P1 P2
B1 B2A1 A2
T
P2 Pi1
P1
DR1
DR2
DR3 DR4 DR5 DR6
P-IN PSA1PSA2
T-OUT1
T-O
UT2
Pi2
DR
DR
M2G2
INOUT
T
bR5
S3 S2 S1A3 A2 A1
T
P3 P1
1 2
LP LT
1 2
RP RT
3 3
TTTP
PG PC
DrM
SP2
PAC
T2T2
AL4
BA
BA
PG
DR
MU
BG AG
B A
AG BG BG AG
A1 A2 A3 A4 A5 A6 A7 A8
B1 B2 B3 B4 B5 B6 B7 B8
STICK CYLINDER
BOOMCYLINDER
BUCKET CYLINDER
BOOMCYLINDER
TRAVEL MOTOR (LEFT) TRAVEL MOTOR (RIGHT)
T1
Pp3Pp3
T1
ABA B
bR2aR2
aL1 bL1 bR1 aR1
BL2 AL2
NO
.1
(TR
AVE
L)
NO
.2(S
WIN
G)
NO
.3(L
OC
K)
AR3
AR4
aR4BR3
aR3aR2
bR2
aR1
BR1AR1
aL1
AL1
BL1
aL2
BL2
AL2
BL3 AL3
bL4 bL3 bL2 bL1 bR4bR3
BR4
bR1Pb1
Pa1
Pa1
Pb1
R.C.V-A
R.C.V-A
R.C.V-B
R.C.V-B
R.C.V-C
R.C.V-C
R.C.V-D
R.C.V-D
PL
PL
PR
PRHL HR
HL HR
μ μ μμ
μ μ μμ μ μ μμ
DR A1B1
FA1 FB1
F2
BTR2
SP1 ST
BL3BP1
BR4 R1
STI
CK
(2)
BO
OM
(1)
ATC
H
BU
CK
ET
TRAV
EL(
R)
TRAV
EL(
L)
SW
ING
STI
CK
(1)
BO
OM
(2)
(UP)
(OUT)
(IN)
(R)
(L)
(FWD)
(BACK)
(FWD)
(BACK)
(OPEN)
(CLOSE)
(UP)
(DOWN)
(OUT)
(IN)
aR3 aR4 bR3 bR4 bL3 bL4 aL2bL2
AL3
BL3
AR3 BR3 AR4 BR4
BL1 AL1 BR1 AR1
VALVE GPNEGATIVEFLOW CONTROL171-0188
VALVE GPLOAD CONT.BOOM CYL.
VALVE GPMAIN CONTROL
VALVE GPLOAD CONT.STICK CYL.
MOTOR GPTRAVEL RIGHT
MOTOR GPTRAVEL LEFT
MOTOR GPSWING
FILTER GPPILOTHYDRAULIC
ACCUMULATOR GP
FILTER GPRETURN OIL
TANK GPHYDRAULICOIL
VALVE GPPRESSREDUCINGBOOM/SWING
MANIFOLD GPCONTROL
FILTER GPCASE DRAIN
VALVE GPLH JOYSTICK
VALVE GPRH JOYSTICK
SWITCH AS.RH TRAVELPRESSURE
SWITCH AS.LH TRAVELPRESSURE
SWITCH AS.PILOT PRESS
VALVE GPCOOLER BYPASS
VALVE GPSHUTTLE
SENSORAS RIGHTPUMPPRESSURE
PUMP GPMAIN HYD.
SENSORAS LEFT PUMPPRESSURE
BLOCK
VALVE GPPILOT TRAVEL
VALVE GPSWINGCUSHION
VALVE GPTRAVEL RTCOUNTERBALANCE
VALVE GPTRAVEL LTCOUNTERBALANCE
SWIVEL GP
VALVE GPPILOT(Left Control)206-3336 VALVE GP
PILOT(Right Control)206-3336
DOUBLEACTION
SINGLEACTION1 PUMP
FLOW
2 PUMPFLOW
VALVE GPCONTROL259-7378
VALVE GPSOLENOID215-4890(EC2)
VALVE GPSOLENOID215-4890(EC1)
VALVE GP SOLENOID(1-PUMP/2-PUMP, 1-WAY/2-WAY)165-9549
VALVE GPRELIEF177-2653
VALVE GPSHUTTLE123-2430
SWITCH AS.PRESSURE(WORK TOOLACTIVATION)
