Curso Estructura Funcion Sistema Hidraulico Excavadora Pc200 210 220 Komatsu
Sistema Hidraulico 950H
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Transcript of Sistema Hidraulico 950H
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8/10/2019 Sistema Hidraulico 950H
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INTERACTIVE SCHEMATIC
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Cover Page
Information
Schematic
Machine Views
Component Table
Tap Table
Fluid Power Symbols
Electrical Symbols
Front Frame
Rear Frame
Tap Views
Features
Options
Bookmarks X
EC-C3
EC-C2 E-C60
EC-C1
E-C61
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Hydraulic System
950H, 962H, and IT62H Wheel Loader
2012 Caterpillar, All Rights Reserved Printed in U.S.A
RENR8879-0November 201
950H:
N1A1-4396
JAD1-409
M1G1-2110J5J1-UP
K5K1-2760
962H:
N4A1-2115
M3G1-678
J6J1-UPK6K1-516
MAL1-122
IT62H:
M5G1-467
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COMPONENT LOCATION
6
0432-221
163-0324
146-7571
0004-241
8J-1553
5368-421
163-0324
5777-111
0971-741
5786-J8
3882-451
241-9299
254-4108
0224-242
247-0497
245-7491
245-7487
2724-242
1724-242
112-1817
245-2975
6415-452
2516-642
244-1426
244-1031
242-1307
249-2334
220-0814
237-2742
141-2597
275-8544
261-4171
261-3682
261-4172
261-3683
274-8055
245-2973
6415-452
242-1307
193-1448
105-6117
214-4863
215-3687
213-8773
129-8090
106-1774
174-4312
175-3244
180-8585
237-0946
7181-211
PartNumber
230-417
HMU STEERING CIRCUIT
COMMAND CONTROL STEERING
MAIN SCHEMATIC
BRAKE SYSTEM
Description
Hand Metering Unit
ecifirO-rotcennoC
Cylinder Gp - Steer
Valve Gp - Neutralizer
reetS-pGevlaV
Valve Gp - Neutralizer
reetS-pGevlaV
Cylinder Gp - Steer
kcehC-pGevlaV
toliP-pGevlaV
elttuhS-pGevlaV
pGneercS
Pump Gp - Steering
Pump Gp - Implement
tliT-rednilyC
Cylinder - Tilt (Mid Lift)
Cylinder - Tilt (High Lift)
Cylinder - Tilt (Logger)
)HL(tfiL-rednilyC
)HR(tfiL-rednilyC
Valve Gp - Manual Lowering
Accumulator - Pilot Oil
naF-pGpmuP
naF-pGrotoM
Valve Gp - Cooler Bypass
Filter Gp - Return Oil
Manifold Gp - Fan & Brake Charge
Filter Gp - Case Drain
Valve Gp - Breaker Relief
Tank Gp - Hydraulic Oil
Valve Gp - Secondary Steer Diverter
Pump Gp - Secondary Steer
Valve Gp - Control
(2 Function Standard)
Valve Gp - Control
(2 Function W/RC)
Valve Gp - Control
(3 Function)
Valve Gp - Control
(2 Function W/RC)
Valve Gp - Control (Snow Removal)
(3 Function W/RC)
Accumulator - Ride Control (RC)
naF-pGpmuP
Manifold Gp - Fan & Brake Charge
Control Gp - Foot Brake
Switch As - Foot Brake Limit
Sensor Gp - Foot Brake
Valve Gp - Foot Brake
Accumulator - Service Brake
Actuator As - Parking Brake
Valve Gp - Parking Brake
Switch As - Parking Brake Pressure
Switch As - Brake Pressure
Valve Gp - Quick Coupler
Cylinder Gp - Quick Coupler
launaM-pGevlaV
Machine
Locations
1
2
3
4
5
6
7
8
9
10
11
12
13
14
20
21
23
24
25
26
27
28
30
31
32
33
34
35
41
25
30
45
46
47
48
49
50
51
52
53
36
15
54
55
56
A-4
4-B,3-B
B-1
B-3, B-4
2-B
D-3
1-D
E-1
3-D
4-D
3-C
2-E
A-6
B-7
8-F
F-8
F-8
F-8
7-F
7-F
F-9
F-5
8-B
8-B
B-9
B-9
C-8
A-8
A-8
A-8
B-5
A-5
F-8
F-6
2-F
F-2
F-3
F-3
F-3
F-3
F-2
F-1
F-2
F-1
F-3
C-9
C-9
9-C
SchematicLocation
F-8
F-8
F-8
F-8
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TAP LOCATION
8-BAA
E-9CC E-9
DD B-7
6-BEE
FF A-4, C-4
5-EGG
8-BHHKK D-2
LL D-2
MM D-3
NN D-3
3-FPP
4-FQQ
4-FRR
8-FXX
YY 8-F
9-B
TapNumber
Description Schemati
Location
erusserPegrahcsiDpmuPnaF
Implement Pump Charge Pressure
Implement Pump Load Sense Pressure
erusserPpmuPreetS
Steer Pump Load Sense Pressure
erusserPylppuStoliP
erusserPesneSdaoLpmuPnaFCommand Control Right Steer Pilot Pressure
Command Control Left Steer Pilot Pressure
Command Control Steering Neutral Pilot Press
Command Control Steering Supply Pressure
erusserPekarBecivreS
erusserPekarBecivreStnorF
erusserPekarBecivreSraeR
erusserPdnEdoRrednilyCtliT
Tilt Cylinder H erusserPdnEdae
troPgnilpmaSliOciluardyHSOS
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ELECTRICAL SYMBOLS
Hydraulic 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
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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
PRESSURE
COMPENSATION
PUMP: VARIABLE and
PRESSURE COMPENSATED
ENERGY TRIANGLES
HYDRAULIC PNEUMATIC
MEASUREMENT
PRESSURE TEMPERATURE FLOW
ROTATING SHAFTS
UNIDIRECTIONAL BIDIRECTIONAL
PUSH-PULL LEVER PEDALGENERAL MANUAL PUSH BUTTON SPRING
MANUAL CONTROL SYMBOLS
HYDRAULIC MOTORS
FIXED
DISPLACEMENT
VARIABLE DISPLACEMENT
NON-COMPENSATED
UNIDIRECTIONAL
BIDIRECTIONAL
HYDRAULIC PUMPS
FLUID STORAGE RESERVOIRS
CROSSING AND JOINING LINES
VALVE ENVELOPES VALVE PORTS
BASIC COMPONENT SYMBOLS
FLUID CONDITIONERPUMP or MOTOR
FIXED
DISPLACEMENT
VARIABLE DISPLACEMENT
NON-COMPENSATED
UNIDIRECTIONAL
BIDIRECTIONAL
VALVES
PILOT CONTROL SYMBOLSRELEASED PRESSURE
EXTERNAL RETURN INTERNAL RETURN
REMOTE SUPPLY PRESSURE
SIMPLIFIED COMPLETE INTERNAL
SUPPLY PRESSU
ACCUMULATORS
SPRING LOADED GAS CHARGED
SOLENOIDor MANUAL
SOLENOIDand PILOT
SOLENOID andPILOT or MANUAL
COMBINATION CONTROLS
SOLENOID SERVO THERMAL DETENT
HYDRAULIC AND PNEUMATIC CYLINDERS
DOUBLE ACTINGSINGLE ACTING
BASIC
SYMBOL
SPRING
LOADED
CHECK VALVES
TWO
POSITION
INFINITE
POSITIONING
FLOW IN ONEDIRECTION
FLOW ALLEITHER DIR
THREE
POSITION
CROSSFLOW
PARALLEL
FLOW
INTERNAL PASSAGEWAYS
NORMAL POSITION
A B
P T
A B
P T
SHIFTED POSITION INFINITE POSITION
CONTROL VALVES
ATTACHMENT
MANUAL SHUTOFF
SHUTTLE PILOT
CONTROLLE
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Components are shown installed on a fully operable machine with the key and engine off, transmission shifterIn neutraland with parking brake set.
Refer to the appropriate service manualfor troubleshooting, specifi cations and systems operations.
SCHEMATICPART NUMBER241-0475, CHANGE09, VERSION-MEDIANUMBER RENR8879-05THIS SCHEMATICIS FORTHE HYDRAUL
BRAKESYSTEM PART NUMBER244-1398, CHANGE00, VERSION-
950H, 962H, ANDIT62H WHEEL LOADER
2345678 2345678 119
2345678 2345678 19
A
B
C
D
E
F
A
B
C
D
E
F
LINE PATTERNS
Drain / Return Lines
Component Group
Pilot / Load Sensing Pressure
Pressure Line
Attachment
Air Line
CALLOUTS
Taps (Pressure, Sampling, Sensor - ByLetter)YY
DRAIN / RETURN LINE
HYDRAULIC CIRCUIT COLOR DESCRIPTIONS
IMPLEMENT PUMP OUTPUT
PRIMARY STEERING PUMP CIRCUIT
STEERING CIRCUIT
IMPLEMENT PILOT SUPPLY OIL
AUXILIARY CIRCUIT
IMPLEMENT PUMP LOAD SENSING CIRCUIT
SUPPLY LINE
TILT CYLINDER CIRCUIT
LIFT CYLINDER CIRCUIT
SECONDARY STEERING CIRCUIT
BRAKE CHARGE VALVE AND FAN CONTROL CIRCUIT
MAIN RELIEF VALVE LOAD SENSING CIRCUIT
BRAKE CONTROL CIRCUIT
EE
AA
SOS
HH
DD
FF
MMNN
LL KK
FF
GG
XX
YY
CC
RR
QQ PP
HMU STEER AND 3PC IMPLEMENT
COMMAND CONTROL STEERING ATTACHMENT
A1
A1
B1
B1
C1
C1 C1
D1
D1
D1
E1
E1
E1
CROSSOVERRELIEF
SHUTTLEVLV
DIRECTIONAL SPOOL
MAKEUPCHECK
BACKUPRELIEF
PRESSUREREDUCING
VALVE
PILOT PORT"A"
PILOT PORT"B"
REGULATEDPRESS. PORT
TO PILOT VALVE
TANKPORT
CYL PORT "A"CYL PORT "B"
LOADSENSINGPUMPPORT
PORT ALEVERFORWARDLEFT HANDLINEONBOOM(WHENVIEWEDFROM CAB)
CROSSOVERRELIEF
CYL PORT "A"
CYL PORT "B"
MAKE-UPCHECKS
DIRECTIONAL SPOOL
BACK-UPRELIEFPUMPPORT
HMUSUPPLY PORT
PILOT PORT "B"
PILOT PORT "A"
PILOT CONTROL SPOOL
TILT
RACKBACK
DUMP
RACK
BACK
HOLD
DUMP
LIFT
RAISE
LOWER/
FLOAT
RAISE
HOLD
LOWER
FLOAT
HOLD
HEADEND
PORTB
3RDFUNCTION
(ATTACHMENT)
PORTA
PORTB
LS DR
R H
LS P T
F
PS
A1 A2
TO FRONTBRAKES
TO REARBRAKES
BRAKE SYSTEM
A1A2
PS
F
LS P T
TO FANMOTOR
TOCASEDRAIN
MANIFOLD
NC
NO
CCTO TRANSMISSION
CONTROL
TO BRAKE
LIGHTS
APPLY
RELEASE
FRONT AXLE
REARAXLE
HYDRAULICTANK
Connection B1 Only For Command Control Steering
PORT BLEVERREARWARDRIGHT HANDLINEONBOOM(WHENVIEWEDFROM CAB)
QUICK COUPLER(ATTACHMENT)
(1) HAND METERINGUNIT
230-4176
(4) VALVE GPNEUTRALIZER
146-7571
(2) CONNECTORORIFICE122-2340
(5) VALVE GPSTEER142-4000
(3) CYLINDER GSTEER
230-4176
(11) VALVE GPSHUTTLE8J-6875
(9) VALVE GPCHECK111-7775
(6) VALVE GPNEUTRALIZER8J-1553
(10) VALVE GPPILOT147-1790
(12) SCREEN GP154-2883
(8) CYLINDER GPSTEER
163-0324
(7) VALVE GSTEER124-8635
(48) VALVE GPFOOTBRAKE
215-3687
(30) MANIFOLD GP
FAN AND BRAKE CHARGE242-1307
(25) PUMP GPFAN254-5146
(52) SWITCH ASPARKING BRAKE PRESSUR
174-4312
(50) ACTUATPARKING B129-8090
(51) VALVE GP
PARKING BRAKE106-1774
(49) ACCUMULATORSERVICE BRAKE
213-8773
(45) CONTROLGPFOOTBRAKE
193-1448
(46) SWITCH ASFOOTBRAKE LIMIT
105-6117
(53) SWITCH ASBRAKE PRESSURE175-3244
(47) SENSOR GP
FOOTBRAKE214-4863
(31) FILTER GPCASE DRAIN
249-2334
(32) VALVEGPBREAKER
RELIEF220-0814
(28) FILTER GPRETURN OIL
244-1031
(27) VALVE GPCOOLER BYPASS
244-1426
(34) VALVE GPSECONDARY STEER DIVERTER141-2597
(26) MOTOR GPFAN
246-6152
(54) VALVE GPQUICK COUPLER
180-8585
(56) VALVE GPMANUAL112-1817
(55) CYLINDER GP
QUICK COUPLER237-0946
(30) MANIFOLD GP
FAN AND BRAKECHARGE242-1307
(25) PUMP GP
FAN254-5146
(36) VALVE GPCONTROL
2 FUNC STD 261-41712 FUNC W/RC261-3682
2 FUNC W/RC261-36833 FUNC STD261-4172
3 FUNC W/RC274-8055
(23) VALVE GPMANUALLOWERING112-1817
(15) CYLINDER GP
TILT242-4220
TILT (MID LIFT)247-0497
TILT (HIGH LIFT)245-7491
TILT (LOGGER)245-7487
(21) CYLINDERLIFT (RH)242-4271
(41) ACCUMULATORRIDE CONTROL (RC)245-2973
(20) CYLINDERLIFT (LH)242-4272
(24) ACCUMULATORPILOT OIL245-2975
(14) PUMP GPIMPLEMENT
254-4108
(13) PUMP GPSTEERING241-9299 (35) PUMP GP
SECONDARY STEER275-8544
(33) TANK GPHYDRAULIC OIL237-2742
RELIEF272-7003256-2866
RELIEF272-7003
RELIEF247-8632
RELIEF254-5789
RELIEF282-4349
RELIEF4T-7581
RELIEF272-2334
RELIEF272-2334
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FAN AND BRAKE PUMP
FAN AND BRAKE HYDRAULIC SYSTEM
The fan and brake pump (25) is located on the front gear train of the engine, on the right side of thmachine. The fan and brake pump provides oil flow for the electronic demand fan systemand the
brake hydraulic system. The outlet pressure tap (AA) is located on the fan and brake pump.
Also located on the engine on the right side of the machine is the fan control and brake accumula
charging valve (30). The fan pump load sense pressure tap (HH) is located above the brake charg
valve.
HH
AA
30
25
VIEW ALL CALLO
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HMU AND SERVICE BRAKES
The followingcomponentsare locatedunder the frontof thecab.
- Hand metering unit (1)
- Foot service brake valve (48)
- Steer pump load sense test port (FF)
- Front sercive brake test port (QQ)
- Rear service brake test port (RR)
QQ
FF
RR
48
1
VIEW ALL CALLO
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IMPLEMENT CONTROL VALVE
photo shows a front view of the implement control valve (36) in the loader frame. The
wing components can be seen in this view:
t accumulator (24)
t supply pressure tap (GG)
Following components are not referenced on the Hydraulic System Schematic:
ssure differential relief valve (A)
ad end solenoid valve (ride control) (B)
nal relief valve (C)
anti-drift valve (D)
d end solenoid valve (ride control) (E)
e control balance solenoid valve (F)
t pressure reducing valve (G)
cylinder head end pressure tap (H)
cylinder head end pressure sensor for Payload Control System and Autodig (J)
raulic lockout solenoid valve (K)
This photo shows a left rear view of the implement control valve (36). The following components can
be seen in this view:
- Implement control valve supply pressure tap (GG)
The Following components are not referenced on the Hydraulic System Schematic:
- Tilt anti-drift valve (A)
- Signal relief valve (B)
- Signal duplication valve (C)
- Return to tank port (D)
- Supply port from pump (E)
- Signal line to pump (F)
- Tank line (G)
- Screen (H)
- Tilt back pilot solenoid valve (J)
- Tilt back pilot (K)
- Tilt cylinder rod end line relief (L)
- Ride control balance solenoid valve ( M)
- Rod end solenoid valve (ride control) (N)
This drawing shows a right side view of the wheel loader. The following components cin this view:
- Implement pump pressure tap (CC)
- Implement pump load Sense pressure tap (DD)
A B
F
E
D
GH
J
K
C CA B
F
E
D
G
H
J
K
L
M
N
GG
DD
CC
24
VIEW ALL CA
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SERVICE CENTER
e service center is located on the right side of the machine below the cab. The Following
mponents are located in the service center:
ase drain filter (31)ydraulic oil fluid sampling valve (SOS)
ydraulic systems kidney loop filter (28)
rake system accumulators (49)
e Following components are not referenced on the Hydraulic System Schematic:
ower train oil fluid sampling valve (A)
ower train oil filter (B)
cology drain for the hydraulic tank (C)
The following remote pressure taps are located inside the panel on the frontside
service center:
- Steering pump outlet pressure (EE)- Brake system accumulator pressure (PP)
The Following components are not referenced on the Hydraulic System Schema
- Transmission reverse clutch (A)
- Transmission forward clutch (B)
- Transmission fourth speed clutch (C)
- Transmission third speed clutch (D)
- Transmission second speed clutch (E)
- Transmission first speed clutch (F)
- Torque converter inlet pressure (G)
- Transmission lubrication pressure (H)
- Transmission pump outlet pressure (J)
- Torque converter outlet pressure (K)
- Steering cylinder rod end grease fittings (L)
- Rear axle oscillation bearing grease fittings (M)
A
B
C
A B
F
E
D
G
C H J
M
L
K
SOS PPEE
49
31 28
VIEW ALL C
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TILT CYLINDER LINES GROUP
VIEW A - A
RIGHT SIDE VIEW
YY
YY
XX
XX
15
15
VIEW ALL CALLO