Ciurcuito Hidraulico de Excavadora 320D
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Transcript of Ciurcuito Hidraulico de Excavadora 320D
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8/20/2019 Ciurcuito Hidraulico de Excavadora 320D
1/2
320D and 323D Excavator
Hydraulic System323D MHPU
323D:NZF1-UP
323D MHPU:L5Z1-UP
320D:JZA1-UPMZD1-UPKZF1-UP
© 2012 Caterpillar, All Rights Reserved Printed in U.S.A.
UENR2474-01
January 2012
O N E PO S IT I ON T W O P O SI T IO N T HR E E PO S IT I ON
V EN TE D P RE SS UR IZ ED R ET UR NA BO VE FL UI DL EV EL R ET UR NB EL OW FL UI DL EV EL
L I NE S C RO S SI N G L I NE S J OI N IN G
TWO - WAY TH RE E- WAY FO UR - WAY
S P RI N G C O NT R OL V A LV E S R E ST RI C TI O N L I NE R E ST RI C TI O N(FIXED)
PUMP(2 - SECTION)
SPRING(ADJUSTABLE)
V AR IA BI LI TY L IN ER ES TR IC TI ON(VARIABLE)
PRESSURECOMPENSATION
PUMP(VARIABLE&PRESSURE
COMPENSATED)
MEASUREMENT
PR ES SUR E TE MP ERAT URE FL OW
ROTATING SHAFTS
U NI DI RE CT IO NA L B ID IR EC TI ON AL
PUSH - PULL LEVER PEDALGENERAL MANUAL PUSHBUTTON SPRING
FIXEDDISPLACEMENT
VARIABLEDISPLACEMENTNON-COMPENSATED
UNIDIRECTIONAL
BIDIRECTIONAL
VALVE ENVELOPES VALVE PORTS
FLUIDCONDITIONERPUMPORMOTOR
FLUID POWER SYMBOLS
UNIDIRECTIONAL
BIDIRECTIONAL
RELEASEDPRESSURE
E XT ER NA L RE TU RN I NT ER NA L RE TU RN
REMOTESUPPLYPRESSURE
SIMPLIFIED
HYDRAULICPUMPS
ACCUMULATORS
S P RI N G L O AD E D G A S CH A RG E D
SOLENOIDOR MANUAL
SOLENOID&PILOT
SOLENOID&PILOTORMANUAL
SOLENOID SERVO THERMAL DETENT
HYDRAULIC&PNEUMATICCYLINDERS
DOUBLEACTINGSINGLEACTING
BASICSYMBOL
SPRINGLOADED
CHECKVALVES
2 POSITIONINFINITE
POSITIONING
FLOWINONEDIRECTION
FLOW INEITHER
DIRECTION
3 POSITION
CROSSFLOW
PARALLELFLOW
INTERNALPASSAGEWAYS
NORMALPOSITION
AB
P T
AB
P T
SHI FTEDPOSI TI ON I NFINI TEPOSI TION
CONTROLVALVES
ATTACHMENT
MANUALSHUTOFF
S HUT TL E P ILO TCONTROLLED
MAIN AUX
LINERESTRICTION(VARIABLE&PRESSURE
COMPENSATED)
MANUALCONTROLSYMBOLS
HYDRAULICMOTORS
FLUIDSTORAGERESERVOIRS
CROSSING &JOINING LINES
VALVES
PILOT CONTROLSYMBOLS
COMBINATIONCONTROLS
BASICCOMPONENT SYMBOLS
ENERGYTRIANGLESHYDRAULIC PNEUMATIC
INTERNALSUPPLYPRESSURE
COMPLETE
FIXEDDISPLACEMENT
VARIABLEDISPLACEMENTNON-COMPENSATED
HYDRAULICSYMBOLS(ELECTRICAL)
ELECTRICAL SYMBOLS TABLE
325-AG135 PK-14
HARNESSIDENTIFICATIONCODE THISEXAMPLEINDICATESWIRE135 INHARNESS“AG”
325-PK-14
WIREGAUGE
WIRECOLOR
CIRCUITNUMBER
IDENTIFICATION
WIRENUMBERIDENTIFICATIONCODES
CURRENT STANDARD
PREVIOUSSTANDARD
E LE CT RI CA L SC HE MA TI C EX AM PL E H YD RA UL IC S CH EM AT IC E XA MP LE
325-PK
WIRECOLORCIRCUITNUMBER
IDENTIFICATION
B
WIRE
WIRE
(EXAMPLEVALVE)
CURRENT STANDARD
TRANSDUCER(FLUID)
M
ELECTRICMOTORTRANSDUCER(GAS/ AIR)
G
GENERATOR
PRESSURE SWITCH ELECTRICAL WIREPRESSURESWITCH(ADJUSTABLE)
TEMPERATURESWITCH
PRESSURE
SWITCH
TEMPERATURE
SWITCH
LEVEL
SWITCH
FLOW
SWITCH
ELECTRICALSYMBOLS(ELECTRICAL)
A
CIRCUITNUMBERIDENTIFICATION
WIRECOLOR
WIREGAUGE
T
U E N R 2 4 7 4 - 0
1
3 0 P a g e ,
( D i m e n s i o n s : 3 9 i n c h e s x 2 8 i n c h e s )
4 6
5
4 6
512
30 13 31
12
30 13 31
11
20
29
3
2
24
2717192518
11
20
29
3
2
24
2717192518
2621
1
23
10
28
22
2621
1
23
10
28
22
815
16
14
SOS AA
DD
EE
FF
7
9BB
CC
815
16
14
SOS AA
DD
EE
FF
7
9BB
CC
MAIN CONTROL VALVEPUMP GP - MAIN HYDRAULIC
MACHINE COMPONENT LOCATIONSOPERATOR CONTROL (CAB REMOVED)
Tap
Number Description
Schematic
Location
AA Pilot Pump Delivery Pressure
BB Driven Pump De l ive ry Pressure
CC Ca se Dr ai n P r es s ur e
DD Dr iv e P um p Del i ve r y Pr e ss u re
EE Driven Pump Powersh ift Pressure
FF Drive Pump Powersh ift Pressure
S O S Hy dr a ul i c Oi l S am p li ng P o rt
TapLocation
Pressureand Sampling
DescriptionPart
Number
Machine
Location
Schematic
Location
AccumulatorGp- Hydraulic(Charged) 164-6981 1
Control Gp - Joystick (LH) 297-0533 2
Control Gp - Joystick (RH) 297-0532 3
Cylinder Gp - Boom Note A 4
Cylinder Gp - Bucket Note A 5
Cylinder Gp - Stick Note A 6
F il te ra nd Va lv eG p- P il ot ( Hy dr au li cO il ) 1 58 -8 98 7 7
Filter Gp -Oil (Hydraulic Return) 188-4140 8
F il te rG p- Oi l( Hy dr au li c, C as eD ra in ) 2 89 -8 19 4 9
M an if ol dG p- C on tr ol (P il ot O il Su pp ly ) 2 15 -5 03 7 1 0
Motor Gp - Swing 334-9968 11
Motor Gp - Travel (Left) 209-5992 12
Motor Gp - Travel (Right) 209-5992 13
Pump Gp - Main Hydraulic 376-8862 14
15
16
17
18
19
Se nso rG p- Pr es sure Dr iv ePu mp 33 6- 9312
20
S en so rG p- Pr es su re D ri ve nP um p 3 36 -9 31 2
21
22
Sw it ch As - Pr es sur e( Imp lem ent ) 3 09- 5769
23
Sw it ch As - Pr es sur e( Lef tT rav el ) 3 09- 5769
24
S wi tc hA s- Pr es su re (R ig ht T ra ve l) 3 09 -5 76 9
25
Swivel Gp 234-4440
26
27
Valve Gp -Check (Return) 369-0420
28
V a lv e G p - Lo ad Co nt r ol ( B oo m Dri f t Red u ct i on ) 2 5 5- 5 68 3
29
V a lv e G p - Lo ad Co nt r ol ( S ti c k Dr i ft Re du ct i on ) 2 5 5- 5 68 0
30
Valve Gp - Main Control 259-7464
31
Valve Gp - Pilot (Travel) 310-0414
Va lveGp-PressureReducing (Boom,SwingPrio r i ty) 310-0210
Valve Gp - Shuttle 185-0462
Valve Gp -Swing Cushion 322-8716
V al ve G p - Tr av el C ou nt er ba la nc e (L ef t) 3 22 -8 71 4
V al ve G p - Tr av el C ou nt er ba la nc e (R ig ht ) 3 22 -8 71 4
ComponentLocation
Note A: Refer to parts manualfor specifi c cylinder information.
Valve Gp - Shuttle 164-6979
AA A-4
BB B-3
CC A-3
DD A-3
EE B-2
FF A-2
SOS A-4
1 B-5
2 C-8
3 C-7
4 F-7
5 F-8
6 F-8
7 A-4
8 A-6
9 A-4
10 B-5
11 F-6
12 F-5
13 F-4
14 B-2
15
16
17
18
19
20
A-3
21
B-3
22
23
A-8
24
E-8
25
E-7
26
E-4
27
28
A-6
29
D-1
30
D-5
31
D-3
F-7
B-4
B-7
E-6
E-5
E-4
B-4FRONT VIEW
REAR VIEW
HYD.TANK
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8/20/2019 Ciurcuito Hidraulico de Excavadora 320D
2/2
U E N R 2 4 7 4 - 0
1
3 0 P a g e ,
( D i m e n s i o n s : 3 9 i n c h e s x 2 8 i n c h e s )
Components are shown installed on a fully operable machine with the key and engine off, transmission shifter in neutraland with parking brake set.
SCHEMATICPART NUMBER: 369-8400, CHANGE: 00, VERSION: HE
MEDIANUMBER: UENR2474-01
THISSCHEMATICISFORTHE320DAND 323DEXCAVATORAND323DMHPU HYDRAULICSYSTEM
12345678
A
B
C
D
E
F
12345678
A
B
C
D
E
F
LINEPATTERNS
Drain / Return Lines
Component Group
Pilot / Load Sensing Pressure
Pressure Line
CALLOUTS
Taps (Pressure, Sampling, Sensor - by letter)YY
(52)VALVEGP- CONTROL
138-1234
Callout Number (Machine Location from
Component LocationsTable)
ComponentName
Part Number
HYDRAULICCIRCUIT COLORDESCRIPTIONS
PILOT PUMPOUTPUT
DRIVENPUMPOUTPUTSTEERING CIRCUIT
SUPPLYLINE
STICKCYLINDERCONTROL CIRCUIT
LEFT TRAVEL MOTORCONTROL CIRCUIT
SWING MOTORCONTROL CIRCUIT
DRAIN/ RETURNLINE
SWING BRAKECONTROL CIRCUIT
DRIVEPUMPOUTPUT
TRAVEL SPEEDCONTROL
BUCKET CYLINDERCONTROL CIRCUIT
RIGHT TRAVEL MOTORCONTROL CIRCUIT
BOOM CYLINDERCONTROL CIRCUIT
255-5680
259-7464
209-5992 209-5992
322-8714 322-8714
234-4440
188-4140 158-8987
376-8862
289-8194
TP
TT
TRAVEL(L) TRAVEL(R)
(FWD) (BKWD) (FWD)(BKWD)
T1T5T2 T4T6T3
(OUT) (IN) (R) (L) (CLOSE)(OPEN) (DOWN) (UP)
JLP
JLT
JRP
JRT
BOOMBUCKETSTICK SWING
JL1 JL3 JL2 JL4 JR4JR2 JR3JR1
1
1
2
23
3
4
4
5
5 6
6
310-0210
310-0414
297-0533
297-0532
255-5683
TRAVEL MOTOR (LEFT) TRAVEL MOTOR (RIGHT)
Pp3
B A B A
AG AGBG BG
T2 T2
T1 T1
Pp3
(FWD) (FWD)(BKWD) (BKWD)
T
OUT
PG PC
IN
PsM2 A2
A1
G1
S1
DrM
Ps2
Pn2
G4
Ps1
Pm
M1
M2
S3
G2
DrG3
Pn1
PsM1
A3
Pi
DR6T-OUT1DR5Pi2DR4DR3
P2 P-IN PSA2 DR1 PSA1 DR2T-OUT2Pi1
PAC
P1
215-5037
164-6981
185-0462
A1 A2 A3 A4 A5 A6 A7 A8
B8B7B6B5B4B3B2B1
Dr
A1B1 B 2 A 2
P1 P2
164-6979
SP3 BP3
SP1 ST BP1 BT
BP2SP2
T
369-8420
A
B
C E
D
F
G
bR2
aR2 AR2BR2
322-8716
334-9968
A B
MU
DR
PG
SWING MOTOR
(L)(R)
A1 B1DR
AG BG
U
RR FR
bL3
aR3
bR3
bL4
aL2bL2
bR1aR1aL1bL1
bR1
bR3
AR3 AL3 AR4BR3 BR4BL3
BL1 AL1 AR1 BR1
PL
PR
bR5
BL2
BL3
BL1
aL1
aL4
aL2
SPi
BR4BR5
BPi
aR3 AL1 AL2
AR3
bL2
bL1
bL4
BR1
BR3
AL3
aL3 aR1
PL PR
bR4
aR4
HR
HL bL3
bR5
AR4
Pi2
HL
HR
AL4
AR5
AL4
B R5 A R5
Pi1
SPi
R3
AR1
R1BR4R2BL3 (IN)
(OUT) (FWD) (FWD) (OUT)
(DOWN) (IN)
S T I C K ( 2 )
B O O M ( 1 )
B U C K E T
A T C H
T R A V E L ( R )
T R A V E L ( L )
S W I N G
S T I C K ( 1 )
B O O M ( 2 )
(UP)(OPEN)
(CLOSE)(BACK) (BACK)(L)
(R)
(UP)
aL3
Pi2
R3
AL2BL2
bR4
Pi1
aR4
BPi
aL4
FINESWING
309-5769
AA SOS
CC
BB
DD
EE
FF
309-5769 309-5769
336-9312
336-9312
(4) BOOM CYLINDER(6) STICK CYLINDER(5) BUCKET CYLINDER
(29) VALVE GP
SWING CUSHION
(11) MOTORGP
SWING
(12) MOTORGP
TRAVEL(LEFT)
(13) MOTORGP
TRAVEL(RIGHT)
(30) VALVEGP
TRAVELCOU NTERBALANCE
(LEFT)
(31) VALVEGP
TRAVELCO UNTERBALANCE
(RIGHT)
(20) SWIVELGP
(1) ACCUMULATOR GP
HYDRAULIC
(CHARGED)
(10) MANIFOLDGP
CONTROL
(PILOTOILSUPPLY)
(8)FILTERGP
OIL(HYDRAULICRETURN)
(7) FILTER AND VALVEGP
PILOT
(HYDRAULICOIL)
(14) PUMPGP
MAINHYDRAULIC
(9) FILTERGP - OIL
(HYDRAULIC, CASE DRAIN)
(27) VALVEGP
SHUTTLE
(25) VALVEGP
PILOT
(TRAVEL)
(2) CONTROLGP
JOYSTICK(LH)
(3) CONTROLGP
JOYSTICK(RH)
(22) VALVE GP
LOADCONTROL
(BOOM DRIFTR EDUCTION)
(24) VALVE GP
MAINCONTROL
(21) VALVEGP
CHECK
(17) SWITCHAS
PRESSURE
(IMPLEMENT)
(23) VALVEGP
LOADCONTROL
(STICKDRIFTREDUCTION)
(15) SENSORGP
PRESSURE
DRIVEPUMP
(16) SENSORGP
PRESSURE
DRIVENPUMP
(18) SWITCHAS
PRESSURE
(LEFTTRAVEL)
(19) SWITCHAS
PRESSURE
(RIGHTTRAVEL)
(28) VALVE GP
SHUTTLE
(1) ACCUMULATOR GP
HYDRAULIC
(CHARGED)
(26) VALVEG P
PRESSUREREDUCING
(BOOM, SWING PRIORITY)