sistema electrico d6n
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INTERACTIVE SCHEMATIC
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Information
Schematic
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Bookmarks X
EC-C3
EC-C2 E-C60
EC-C1
E-C61
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2012 Caterpillar, All Rights Reserved Printed in U.S.A
RENR8186-0August 201
D6N Track-type TractorHydraulic System
Differential Steering - Pilot Operated Hydraulics and AccuGrade
CCK1-UP
AKM1-UPCBL1-UP
ALY1-UPCCS1-UP
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COMPONENT LOCATION
Check Part Numbers in the Parts Manuals for your Specific Machine.
Note A: Used on Std 'P' Dozer Note E: Used on Std Dozer
Note F: Inlet Manifold with Change Valve
Note G: Ports Blocked when using 'SU' Blade
Note H: Used on all Dozers with 'SU Blade or Ripper
Note B: Used on 'SU' Dozer
Note C: When using 'SU' Blade
Note D: Used on all Dozers with Ripper
Description Part
Number
Machine
Location
Schematic
Location
Accumulator Gp 200-0750 32 D-7
Core As - Oil Cooler 274-5095 23 A-5
Cover - End 240-9086 7 F-6
Cylinder Gp - Angle Note A 321-7048 11 E-1
Cylinder Gp - LiftNote A
Note B
110-3269
275-84169 E-1
Cylinder Gp - Lift (Ripper) 277-0842 12 E-7
Cylinder Gp - TiltNote A
Note B
160-0054
233-913410 F-1
Element As - Implement Return Filter 1R-0777 14 D-3
Filter Gp - Case Drain 169-4019 15 D-2
Filter Gp - Charge Circuit 110-4664 25 B-4
Motor Gp - Steering 191-9536 22 B-7
Plug As Note G 148-8409 19 E-6
Pump Gp - Implement 195-9097 16 E-3
Pump Gp - Steering 257-8470 21 B-5
Screen 6E-5066 31 D-7
Tank Gp - Hydraulic 230-9131 13 D-3
Valve Gp - Angle (Dozer) Note E 238-4825 5 E-6
Valve Gp - Tilt (Dozer) Note E 246-4214 4 E-6
Valve Gp - Check 1U-2744 8 F-6, D-6
Valve Gp - Cold Start Relief 198-9219 27 B-6
Valve Gp - Cooler Bypass 126-0747 24 A-5
Valve Gp - Counterbalance Lift 237-3925 35 D-5
Valve Gp - Lift (Dozer)Note A
Note H
246-4211
246-42123 D-6
Valve Gp - Make-Up with Line Relief 6E-0772 17 E-6
Valve Gp - Make-Up with Line Relief Note H 132-5303 18 D-6
Valve Gp - Manifold As Note F 9T-6695 2 D-6
Valve Gp - Mounting & (EH Valves) 250-5788 33 C-4
Valve Gp - Pilot (Dozer) 235-0889 28 C-5
Valve Gp - Pilot (Ripper) 230-9136 29 C-7
Valve Gp - Resolver (Shuttle) 248-6162 20 D-4
Valve Gp - Ripper Lift (Control) 247-1745 6 F-6
Valve Gp - Shuttle 231-5213 34 C-5, D-6
Valve Gp - Steering Pilot 9T-8693 26 B-4
Valve Gp Bank 3
Valve Gp Bank 4
Note A
Note D
246-4206
246-42081 D-6
Valve GP-Pressure Reducing 162-0162 30 D-7
Test - Instruction 247-0560
Misc Ref
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TAP LOCATION
Tap
Number Description
Schematic
Location
A
Implement Pump Load Sensing Signal
Pressure Tap - at Valve
Implement Pump Discharge Pressure Tap- at Valve
C-1
B C-1
E Charge Pump Relief
D-1
F Charge Pump Discharge B-5, D-1
G Case Return - Steering Pump B-4, D-1
K Upstream Filter B-4
MA
Right Steering Loop Pressure
- at Pump
B-5, D-1
X1 Right Steering Actuator B-5
X2 Left Steering Actuator B-5
Y1
Right Steering Pilot Pressure Tap
B-4, D-1
Y2
Left Steering Pilot Pressure Tap
B-4, D-1
MB
Left Steering Loop Pressure
- at Pump
B-5, D-1
SOSImplement Pump Discharge Press &
Hydraulic Oil Sample Port CombinationF-5
CImplement Pump Case Drain Filter
- Inlet Pressure Tap
Pilot Supply Pressure Tap
E-3
D
B-5, D-1
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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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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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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 Troublesho oting, Specifications and Systems Operations.
SCHEMATIC PART NUMBER: 246-5101, CHANGE: 08, VERSION: -
MEDIA NUMBER: RENR8186-03
THIS SCHEMATIC IS FOR THE D6N D/S TRACK-TYPE TRACTOR HYDRAULIC SYSTE
A
B
C
D
E
F
1234567
1234567
HYDRAULIC CIRCUIT COLOR DESCRIPTIONS
ImplementPumpOutput
PilotCicuit
SupplyLine
Drain/ ReturnLine
LowerBoostSignal/LiftCylinderControlCircuit
TiltCylinderControlCircuit
LoadSensingCircuit
RipperCylinderControlCircuit
AngleCylinderControlCircuit
LINE PATTERNS
Drain / Return Lines
Component Group
Pilot / Load Sensing Pressure
Pressure Line
Attachment
Air Line
CALLOUTS
ARROW PATTERNS
Taps (Pressure, Sampling, Sensor) by letter
AccuGrade Options
YY
SteeringPumpandMotor Circuit
SteeringPilotPumpCircuit
MODELS T855 AND T857 ONLY
FOR E/H CONTROL CIRCUITAND ACCUGRADE
C
RIPPER
LIFT
ANGLE
TILT
ANGLE
LIFT
RAISEB
LOWERA
RIGHT B
LEFT A
RAISEB
LOWERA
RIGHT B
LEFT A
CASEDRAINRETURNFROM STRPUMP
STRPILOT VALVERETURNTO TANK
SUCTIONLINETO CHARGEPUMP
LOWERBOOST SIGNAL
T P
LS
ENDCOVER
RIPPER
ANGLE
DOZ TILT
DOZ LIFT
INLET
BAFFLE
1 LIFT 2 3 TILT 4
ELEC. DET.
1 T S 2 3 T S 4
1 RIPPER 2
1 T S 2
TO ANGLEVALVEE/HSOLENOID
VALVES
JOYSTICKTHUMB ECMSWITCH
SUCTIONLINETO CHARGEPUMP
STRPILOT VALVE
RETURNTO TANKCASEDRAINRETURNFROM STRPUMP
(12) CYLINDER GP
RIPPER LIFT277-0842
(7) COVER END
240-9086
(8) VALVE GP
CHECKIU-2744
NOTEG: PORTSBLOCKEDWHEN USING 'SU' BLADEONLY
NOTEH: USEDONALL DOZERSWITH 'SU' BLADEORR IPPER
NOTED: USEDONALL DOZERS WITHRIPPER
NOTEE: USEDON STDDOZER
NOTEF: INLET MANIFOLDWITH CHANGEVALVE
NOTEA: USEDONSTD'P' DOZER
NOTEB: USEDON'SU' DOZER
NOTEC: WHENUSING 'SU' BLADE
F
MB
E
MA X2 X1
G
K
Y1 Y2
SOS
XYZ
X
Y
Z
(5) VALVE GP
CONTROL DOZERANGLE
NOTE E238-4825
C4C3C2C1
C4 C3
C2C1
(6) VALVE GPRIPPER LIFT
247-1745
(17) VALVE GP
MAKE-UPWITH
LINE RELIEF6E-0772
(17) VALVE GP
MAKE-UPWITH LINE
RELIEF6E-0772
(19) PLUG ASNOTE G
148-8409
(4) VALVE GP
DOZER TILT
NOTE E246-4214
(18) VALVE GPMAKE-UP WITH
LINE RELIEFNOTE H
132-5303
(3) VALVE GP
DOZER LIFT STDNOTE A
246-4211NOTE H
246-4212
(2) VALVE GP
MANIFOLD ASNOTE F
9T-6695(1) VALVE GP
BANK 3NOTE A
246-4206NOTE D
BANK 4246-4208
(32) ACCUMULATOR GP
200-0750
(30) VALVE GPPRESSURE
REDUCING
162-0162
(31) SCREEN6E-5066
(10) CYLINDER GP
TILTNOTE A
160-0054NOTE B
233-9134
(9) CYLINDER GLIFT
NOTE A110-3269
NOTE B275-8416
(11) CYLINDER GP
ANGLENOTE A
321-7048
(9) CYLINDER G
LIFTNOTE A
110-3269NOTE B
275-8416
(29) VALVE GP
PILOT (RIPPER)230-9136
(28) VALVE GPPILOT (RIPPER)
235-0889
(16) PUMP GP
IMPLEMENT195-9097
(20) VALVE GP
RESOLVER248-6162
(8) VALVE GPCHECK
1U-2744
(15) FILTER GPCASE DRAIN
169-4019
(13) TANK GP230-9131
(14) ELEMENT AS
IMP RETURNFILTER
1R-0777
(34) VALVE GP
SHUTTLE
231-5213
(34) VALVE GPSHUTTLE
231-5213
(34) VALVE GP
SHUTTLE
231-5213
(34) VALVE GP
SHUTTLE231-5213
(35) VALVE GP
COUNTERBALANCE237-3925
(33) VALVE GPMOUNTING & (EH VALVES)
250-5788
(22) MOTOR GP
STEERING
191-9536
(27) VALVE GPCOLD START
RELIEF198-9219
(23) CORE AS
OIL COOLER274-5095
(24) VALVE GP
COOLER BYPASS
126-0747
(21) PUMP GP
STEERING257-8470
(25) FILTER GP
CHARGE CIRCUIT110-4664
(26) VALVE GPSTEERING
PILOT9T-8693
IMPLEMENT/DIAGNOSTICHYDRAULICSREMOTETAPS
Y2
Y1
MB
MA
G
F
E
D
B
A
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CHARGE CIRCUIT FILTER / HYDRAULIC
TANK AND FILTER
14
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HYDRAULIC LINES - STEERING
X2X1
K
25
25
24
2322
21
VIEW ALL CALLO
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HYDRAULIC REMOTE TAPS
Y2Y1 MB MA
GFED
BA
15
VIEW ALL CALLO
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IMPLEMENT PUMP PORT LOCATIONS
CASE DRAIN PORT (L1)
LOAD SENSE PORT (X)CASE DRAIN PORT (L)
PRESSURE PORT (B)
SUCTION PORT (
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IMPLEMENT PUMP
REMOTE HYDRAULICTAPS - IMPLEMENT
C
C
B
35
16
16
VIEW ALL CALLO
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STEERING MOTOR AND STEERING PILOT VALVE
26
22
VIEW ALL CALLO