SER VICE MANUAL
T6010 , T6020 , T6030 , T6040 , T6050 , T6060 , T6070 84276574A 10/05/2010
POWER COUPLING Clutch
TRANSMISSION Mechanical
TRANSMISSION Power Shuttle
TRANSMISSION Semi - Powershift
ADDITIONAL REDUCERS Creeper
ADDITIONAL REDUCERS Overdrive
REAR O Hydraulic
FRONT O Hydraulic
Contents INTRODUCTION HYDRAULIC - PNEUMA TIC - ELECTRICAL - ELECTRONIC SYSTEMS A PRIMAR Y HYDRAULIC POWER SYSTEM PRIMAR Y HYDRAULIC POWER SYSTEM Closed center mechanical remote valve PRIMAR Y HYDRAULIC POWER SYSTEM Electro - hydraulic remote valve PRIMAR Y HYDRAULIC POWER SYSTEM Open center mechanical remote valve SECONDAR Y HYDRAULIC POWER SYSTEM HYDRAULIC COMMAND SYSTEM ELECTRICAL POWER SYSTEM ELECTRONIC SYSTEM F AUL T CODES ENGINE AND O . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B ENGINE FUEL AND INJECTION SYSTEM AIR INT AKE SYSTEM EXHAUST SYSTEM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B.40.A ENGINE COOLANT SYSTEM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B.50.A TING SYSTEM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B.80.A TRANSMISSION, DRIVE AND O OUT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C
AXLES, BRAKES AND STEERING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D FRONT AXLE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D.10.A 84276574A 10/05/2010
SUSPENSION
WHEELS AND TRACKS Wheels
FRAME AND CAB
FRAME Primary frame
AXLE
- 4WD SYSTEM Hydraulic STEERING Hydraulic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D.20.C
VICE BRAKE Hydraulic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D.30.C
ARKING BRAKE Mechanical . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D.32.B
Hydraulic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D.34.C
REAR
2WD
SER
P
BRAKE CONNECTION
Hydraulic
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E.10.B
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E.20.A
SHIELD
T . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E.32.A USER PLA TFORM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E.34.A ENVIRONMENT CONTROL Heating, ventilation and air - conditioning . . . . . . . . . . . . . . . . . . . . E.40.D HITCH AND WORKING T OOL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . H HITCH Front hitch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . H.10.B HITCH Rear hitch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . H.10.C HITCH Electronic draft control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . H.10.D 84276574A 10/05/2010
USER CONTROLS AND SEA
INTRODUCTION
10/05/2010 1
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Contents INTRODUCTION Foreword . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Safety rules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 T orque . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Consumables Lubrications and Coolants . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Capacities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84276574A 10/05/2010 2
Foreword T echnical Information
This manual has been produced a new technical information This new system designed deliver technical information electronically through - ROM and paper manuals. A coding system called ICE has been developed link the technical information other Product Support functions W arranty
T echnical information written support the maintenance and service the functions systems a customers When a customer has a concern his machine usually because a function system his machine not working not working ficiently , not responding correctly his When you refer the technical information this manual resolve that customers you will find all the information classified using the new ICE according the functions systems that Once you have located the technical information for that function system then you will find all the mechanical, electrical hydraulic devices, assemblies and sub assemblies for that function Y will also find all the types information that have been written for that function the technical data the functional data (how the diagnostic data (fault codes and troubleshooting) and the service data (remove, install adjust, etc.). integrating this new ICE coding into technical information , you will able search and retrieve just the right piece technical information you need resolve that customers concern his machine. This made possible attaching 3 categories each piece technical information during the authoring
The first category the Location, the second category the Information T ype and the third category the Product:
• LOCA TION - the component function the that the piece technical information going describe Fuel
• INFORMA TION TYPE - the piece technical information that has been written for a particular component function the machine Capacity would a type T echnical Data that would describe the amount fuel held the Fuel tank.
• PRODUCT - the model that the piece technical information written for
Every piece technical information will have those 3 categories attached Y will able use any combination those categories find the right piece technical information you need resolve that customers concern his
That information could be:
• the description how remove the cylinder head
• a table specifications for a hydraulic pump
• a fault code
• a troubleshooting table
• a special tool
INTRODUCTION
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How Use this Manual
This manual divided into Sections. Each Section then divided into Chapters. Contents pages are included the beginning the then inside every Section and inside every Chapter alphabetical Index included the end a Chapter Page number references are included for every piece technical information listed the Chapter Contents Chapter
Each Chapter divided into four Information types:
• T echnical Data (specifications) for all the electrical hydraulic components
• Functional Data (how works) for all the electrical hydraulic components and
• Diagnostic Data (fault codes, electrical and hydraulic troubleshooting) for all the electrical hydraulic components and
• Service data (remove disassembly , assemble, install) for all the mechanical, electrical hydraulic devices, ponents and
Sections
Sections are grouped according the main functions a systems the Each Section identified a letter C The amount Sections included the manual will depend the type and function the machine that the manual written for Each Section has a Contents page listed alphabetic / numeric order This table illustrates which Sections could included a manual for a particular
SECTION
A - Distribution Systems
B - Power Production
C - Power T rain
D - T ravelling
E - Body and Structure
F - Frame Positioning
G - T ool Positioning
H - W orking Arm
J - T ools and Couplers
INTRODUCTION
Field Processing PRODUCT T ractors X X X X X X X X V ehicles with working arms: skid X X X X X X X X X forage X X X X X X X X X X spraying X X X X X X X X X Mounted equipment and X X X X 84276574A 10/05/2010 4
K - Crop Processing L -
HYDRAULIC - PNEUMA TIC - ELECTRICAL - ELECTRONIC SYSTEMS
SER VICE MANUAL
84276574A 10/05/2010 A
T6010 , T6020 , T6030 , T6040 , T6050 , T6060 , T6070
HYDRAULIC - PNEUMA TIC - ELECTRICALELECTRONIC SYSTEMS - A
Contents
PRIMAR Y HYDRAULIC POWER SYSTEM T6010 , T6020 , T6030 , T6040 , T6050 , T6060 , T6070 PRIMAR Y HYDRAULIC POWER SYSTEM Closed center mechanical remote valve . . . . . . A.10.B T6010 , T6020 , T6030 , T6040 , T6050 , T6060 , T6070 PRIMAR Y HYDRAULIC POWER SYSTEM Electro - hydraulic remote valve T6010 , T6020 , T6030 , T6040 , T6050 , T6060 , T6070 PRIMAR Y HYDRAULIC POWER SYSTEM Open center mechanical remote valve . . . . . . . . A.10.D T6010 , T6020 , T6030 , T6040 , T6050 , T6060 , T6070 SECONDAR Y HYDRAULIC POWER SYSTEM T6010 , T6020 , T6030 , T6040 , T6050 , T6060 , T6070 HYDRAULIC COMMAND SYSTEM T6010 , T6020 , T6030 , T6040 , T6050 , T6060 , T6070 ELECTRICAL POWER SYSTEM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A.30.A T6010 , T6020 , T6030 , T6040 , T6050 , T6060 , T6070 ELECTRONIC SYSTEM T6010 , T6020 , T6030 , T6040 , T6050 , T6060 , T6070 F AUL T CODES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A.50.A T6010 , T6020 , T6030 , T6040 , T6050 , T6060 , T6070 84276574A 10/05/2010 A
HYDRAULIC - PNEUMA TIC - ELECTRICALELECTRONIC SYSTEMS - A PRIMAR Y HYDRAULIC POWER SYSTEM10.A
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T6010 , T6020 , T6030 , T6040 , T6050 , T6060 , T6070
Hydraulic schema (16x16 CCLS with Electronic Draft Control)
Hydraulic schema (16x16 CCLS with Mechanical Draft Control)
Hydraulic schema (24x24 CCLS with Electronic Draft Control)
Hydraulic pump
Fixed displacement pump - Static description
Fixed displacement pump - Overview
Fixed displacement pump - Exploded view
V ariable displacement pump - Static description
V ariable displacement pump - Overview
V ariable displacement pump - Exploded view
V ariable displacement pump - Dynamic description
V ariable displacement pump - Dynamic description (System description CCLS)
view
Contents HYDRAULIC - PNEUMA TIC - ELECTRICAL - ELECTRONIC SYSTEMS - A PRIMAR Y HYDRAULIC POWER SYSTEM10.A TECHNICAL T A PRIMAR Y HYDRAULIC POWER SYSTEM T orque 4 Special tools 4 Hydraulic pump Fixed displacement pump - General specification 6 Fixed displacement pump - T orque 6 V ariable displacement pump - General specification 6 V ariable displacement pump - T orque 7 Charge pump General specification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 FUNCTIONAL T A PRIMAR Y HYDRAULIC POWER SYSTEM Overview - V ariable Displacement Pump High Pressure Hydraulic Circuit x Static description Overview - V ariable Displacement Pump High Pressure Hydraulic Circuit x Overview - Fixed Displacement Pump Hydraulic Circuit x and x Models . . . . . . . . . . . . . . . Hydraulic schema . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Exploded
Compensator 84276574A 10/05/2010 A.10.A / 2
Charge pump
Exploded view . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SER VICE Hydraulic pump Fixed displacement pump - Remove Fixed displacement pump - Overhaul Fixed displacement pump - V isual inspection V ariable displacement pump - Remove V ariable displacement pump - Overhaul V ariable displacement pump - Replace (Input shaft seal) V ariable displacement pump - Install V ariable displacement pump - Pressure test V ariable displacement pump - Flow test 100 T est (Air Ingress) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101 Charge pump Overhaul 103 Compensator Overhaul 105 84276574A 10/05/2010 A.10.A / 3
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PRIMAR Y HYDRAULIC POWER SYSTEM - T orque
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HYDRAULIC - PNEUMA TIC - ELECTRICAL - ELECTRONIC SYSTEMS - PRIMAR Y HYDRAULIC POWER SYSTEM
PRIMAR Y HYDRAULIC POWER SYSTEM - Special tools
DESCRIPTION P ART NUMBER Previous part number T adaptor 1 1 / ORFS female x 1 1 / ORFS male x 7 / UNF female 380000570 * 297600 * Adaptor M10 banjo x 7 / UNF female 380000572 * 297602* Adaptor 7 / UNF female x M12 x male 380000577 * 297607* Adaptor 7 / UNF male 380000999 292928# Adaptor M14 banjo x M14 x female 380000579 * 297609* T adaptor 7 / UNF female x 1 / 4 BSP hose tail x 1 / 2 hose 380000580 * 297610* 7 / UNF male Quick release adaptor 380000492 297240 * Adaptor M10 x 1.0p x 7 / UNF female 380000493 297404 * Hand pump 380000215 Lift relief valve fitting 380000217 quick release fitting with adaptor x male 380001 146 . 297241 Blanking Cap 1 1 / ORFS 380000599 * 297671* Pressure Gauge bar 380000551 # 293241# Pressure Gauge bar 3800001 145 297167 Pressure Gauge bar 380000552 # 293242 # Pressure Gauge bar 380000553 # 293244# Remote valve coupling 380000554 # 5101741 293449# Quick release adaptor 380000543 291924 Pressure gauge hose 380000545 # 292246 # 1 / 8 NPT fitting attach hose 292246 gauge 380000544 # 291927 # / ORFS female x / ORFS male x 7 / UNF female 380000842 Adaptor M10 x x 7 / JIC male (enables use gauges with 7 / JIC hoses used) 380000494 297417 diagnostic switch 380000488 295041 Bypass connector 380001 147 297407 Bypass connector 380000561 295044 T railer brake fitting 380000550 # 293190# Open Centre Lift Pressure Regulating V alve Adjusting T ool 380000231 291863 Flow Meter 120 l / min ) * Part hydraulic adaptor kit 380000464 29761 1 # Part hydraulic pressure test kit 380000240 292870 Remote valve check valve removal tool 380002720 Charge pump pressure test adaptor 380200015 Lift ram pressure test tee piece / ORFS 380200012 Oil cooler pressure test adaptor 380200006 Hydraulic pump pressure test adaptor 380200090 Lube pressure test adaptor 380200091 84276574A 10/05/2010 A.10.A / 5
HYDRAULIC - PNEUMA TIC - ELECTRICAL - ELECTRONIC SYSTEMS - PRIMAR Y HYDRAULIC POWER SYSTEM
Hydraulic pump Fixed displacement pump - General specification
Filter
T ype Full - flow , screw - cartridge
Location Pump the side the rear axle housing PUMP
T ype
Gear type, with oil suction from transmission casing
Location the side the rear axle housing
Manufacturer BOSCH Drive Driven O input shaft
Corresponding rated output I / min (US gallon / min)
Hydraulic pump Fixed displacement pump - T orque
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HYDRAULIC - PNEUMA TIC - ELECTRICAL - ELECTRONIC SYSTEMS - PRIMAR Y HYDRAULIC POWER SYSTEM
Hydraulic pump V ariable displacement pump - General specification
Hydraulic pump V ariable displacement pump - T orque BSE3603A
T ype V ariable Displacement Piston Pump (Swash Plate Controlled) Rotation Clockwise Minimum Pump Speed 800 RPM Maximum Pump Speed 2662 RPM Pump Speed @ 2200 RPM (enginespeed) 2514 RPM Displacement cm³ / rev ( 2.75 in³ / rev ) Output (new pump) @ 2200 RPM (enginespeed) 1 l / min ( gpm ) 29.8 gpm Standby Pressure bar + / - 1 ( 334 psi + /14.5 ) Maximum System Pressure 210 bar + / - 5 ( 3045 psi + /72.5 ) Spike Clipper Relief V alve 245 bar + / - 5 ( 3553 psi + /72.5 ) Peak Pressure 315 bar ( 4568 psi )
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- PNEUMA TIC - ELECTRICAL - ELECTRONIC SYSTEMS - PRIMAR Y HYDRAULIC POWER SYSTEM
V ariable Displacement Pump High Pressure Hydraulic Circuit x Models 1 T o Additional Remote Control V alves 2 End Plate With Pilot Line Pressure Reducing V alve and Load Sensing Shuttle V alve 3 V ariable Displacement Hydraulic Pump 4 Low Pressure Switch 5 Mid Mounted Remote Control V alve 6 Boosted Lubrication Oil 7 Front Suspension Control V alve 8 T railer Brake V alve 9 Power Beyond Ports Subplate with Low Pressure Compensator V alve 1 1 Feed Low Pressure circuit Lift Cylinder Electronic Draft Control V alve Electro - Hydraulic Remote Control V alve A High Pressure Circuit Oil B Steering Circuit C Low Pressure Circuit Oil D T rapped Oil E Return T o Reservoir Oil F Suction Oil G Charge Pump Oil H Lubrication Oil 84276574A 10/05/2010 A.10.A /
HYDRAULIC
Y HYDRAULIC POWER SYSTEM
PRIMAR Y HYDRAULIC POWER SYSTEM - Static description
The hydraulic systems can separated into the following circuits: -
High Pressure Circuit
Hydraulic Lift Assembly .
Remote Control V
T railer Brake (Where Fitted)
Suspended Front
Front Lift (Where
Steering Circuit
Steering Motor and Cylinders
Low Pressure Circuit
Independent Power T ake f (PT
Dif ferential Lock
Front Wheel Drive engagement
T ransmission clutch and synchroniser engagement
Creeper engagement (Where fitted)
Front PT O (Where fitted)
kph engagement (Where fitted)
Lubrication Circuit
O Clutch Plates
T ransmission Clutch
T ransmission Shaft Pressure Lube
Pump Drive Gear
Hydraulic Lift Cross Shaft
The high pressure circuit the Centre Load design all tractor model options fed either a V ariable Displacement Pump a Fixed Displacement
The steering, low pressure and lubrication circuits are fed a separate fixed displacement pump via a solenoid activated lubrication models with Supersteer the steering circuit has dynamic load sensing Hydraulic
/
/ Remote V alve Options
Before commencing work a tractor important identify the tractor has a variable displacement pump fixed displacement pumps and the type Figure 1 shows the variable displacement pump with a x T 84276574A 10/05/2010
HYDRAULIC - PNEUMA TIC - ELECTRICAL - ELECTRONIC SYSTEMS - PRIMAR
Pump
Less Hydraulic T railer Brakes With Hydraulic T railer Brakes Hydraulic T railer Brake Italy Fixed V ariable Fixed V ariable Fixed V ariable MDC EDC MDC EDC MDC EDC MDC EDC MDC EDC MDC EDC Remotes 2 4 2 4 2 4 2 4 2 4 2 4 2 4 2 4 2 4 2 4 2 4 2 4 x Y Y Y Y Y Y x Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y x Y Y Y Y Y Y Y Y Y Y Y Y
HPL
A.10.A /
HYDRAULIC
TIC
- PNEUMA
- ELECTRICAL - ELECTRONIC SYSTEMS - PRIMAR Y HYDRAULIC POWER SYSTEM
BSE3575A 1
Figure 2 shows the variable displacement pump with a x T ransmission and ARGO hydraulic oil filter fitted later models..
BAIL07APH323ASA 2
Figure 3 shows the fixed displacement pump with a x T
BSE3665A 3 Closed centre remote valves (1) and Electronic draft control
A.10.A /
BSE3604B 4
T
ractors installed with the electronic draft control hydraulic lift assembly use a unique operator control (1) . Draft sensitivity control knob 84276574A 10/05/2010
HYDRAULIC - PNEUMA TIC - ELECTRICAL - ELECTRONIC SYSTEMS - PRIMAR Y HYDRAULIC POWER SYSTEM
(2) Drop rate control knob
(3) Height limit control knob
(4) Slip limit control knob
.
The lift arm position control unique tractors with electronic draft
(1) Stop adjuster thumbwheel
(2) Stop
(3) Position control lever
(4) Draft loading wheel
(5) . Raise / lower switch
The raise and lowering functions the electronic draft control lift system can also operated from the rear fender switch (1)
BRE1481B 7
The closed centre model tractors can also have electro - hydraulic remote valves (1)
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BSE2888B 6
.
/
A.10.A
BSE3604B 8
Located
Fixed Displacement high pressure hydraulic systems can identified from the following:Fixed displacement
BSE3572A
Mechanical remote control valves BSE3664A
HYDRAULIC - PNEUMA TIC - ELECTRICAL
- ELECTRONIC SYSTEMS - PRIMAR Y HYDRAULIC POWER SYSTEM
below the Electronic Draft Control valve (Where the Hydraulic Power T apping port (Power Beyond) block. This includes a priority valve (1) and also a low pressure regulating valve. This block also has a flange plate which allows the addition a trailer brake
9
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HYDRAULIC - PNEUMA TIC - ELECTRICAL - ELECTRONIC SYSTEMS - PRIMAR Y HYDRAULIC POWER SYSTEM
Located below the Electronic Draft Control valve (Where the Hydraulic Power T apping port (Power Beyond)
This includes a priority valve and also a low pressure regulating This block also has a flange plate which allows the addition a trailer brake
Power Beyond Ports
Pressure Relief V alve
BSE3845A
The type transmission installed can identified inspecting the transmission control lever
T ractors with x transmission have a single control lever (1) with two shift Closed centre hydraulic system only
Figure shows Semi - Powershift control lever . .
T ractors installed with x transmission uses two control The main transmission lever (1) provided with push buttons (2) and (3) actuate the Dual Command These tractors can use either variable displacement pump a fixed displacement
T ractors installed with x Command transmission uses two control These are the main shift lever (1) and the range lever (2)
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CLOSED
CENTRE LOAD SENSING HIGH PRESSURE HYDRAULIC CIRCUIT 1b0o2004061057 High Pressure Circuit Components and Pipework T ractors with V ariable Flow Piston Pump 1 Remote and EDC Control V alves 2 T railer Brake V alve 3 Load Sense Lines 4 Flow and Pressure Compensator V alve 5 V ariable Flow Hydraulic Pump 6 Feed Remote V alves 7 T o Hydraulic Lift Ram 8 Feed Electro - Hydraulic V alve Pilot Line 84276574A 10/05/2010 A.10.A /
HYDRAULIC - PNEUMA TIC - ELECTRICAL - ELECTRONIC SYSTEMS - PRIMAR Y HYDRAULIC POWER SYSTEM
The principal operation the closed centre load sensing high pressure hydraulic circuit with variable flow piston pump supply oil flow also enables simultaneous operation the trailer hydraulic remote control valve assemblies and front axle suspension where The load sensing variable flow piston pump fers significant benefits reducing the engine power loss that occurs open centre systems where a high volume oil, often far excess demand, continuously pumped round the hydraulic circuit even when they are not being
A fixed displacement pump (Charge Pump) serves initial displacement pump for the variable displacement pump The variable displacement pump first all supplies oil the trailer brake valve (where the remote valves and electronic draft control valve and a pilot oil supply with lower priority The highest load pressure indicated the flow and compensating valve the pump via the load sensing line. The flow and compensator valve controls the pump pressure such a way that always exceeds the highest load pressure a pre - set dif A priority valve for low pressure circuit demand located the bottom subplate the remote valve T ractors fitted with Electro - hydraulic remote valves also have high pressure oil supplied from the variable displacement pump the top plate the remote valve The oil passes through the top plate via a small filter and a pressure limiting valve ( - Bar The oil then directed the pilot oil supply the electro - hydraulic control
BSF4142A High Pressure Circuit Components and Pipework T ractors with V ariable Flow Piston Pump 1 End Plate 2 Load Sensing port for Mid Mount V alve 3 Electro - Hydraulic Remote V alves 4 Electronic Draft Control V alve 5 T railer Brake V alve (Where Fitted) 6 Load Sensing Line 7 Low Pressure Circuit Distribution Manifold 8 Low Pressure Feed 9 Flow and Pressure Compensator V alve V ariable Displacement Pump 1 1 High Pressure Feed Electro - Hydraulic Remote V alves Feed T o Hydraulic Lift Cylinder Feed Italian type trailer brake solenoids High Pressure Feed Electro - Hydraulic V alve Pilot Line The high pressure circuit illustrated PRIMAR Y HYDRAULIC POWER SYSTEM - Overview (A.10.A) Hydraulic pump assembly 84276574A 10/05/2010 A.10.A /
HYDRAULIC - PNEUMA TIC - ELECTRICAL - ELECTRONIC SYSTEMS - PRIMAR Y HYDRAULIC POWER SYSTEM
Integral with the high pressure variable displacement pump the load sensing containing the pressure and flow compensating the steering pump , the charge pressure and main system filters and various electrical
Load sensing valve assembly (1), consists a flow compensating valve (2) and a high pressure control valve (3) . The load sensing valve receives hydraulic signals from operated components through the load sense line (4) and relays this the pump which will adjust satisfy the system
Steering
The steering pump a separate unit but still driven from the same drive gear the main
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Figure shows the variable displacement pump assembly
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Figure shows the fixed displacement pump assembly .
Figure shows the load sense valve assembly
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T railer brake valve which located beneath the cab just front the hydraulic lift assembly The valve diverts oil pressure the trailer brakes whenever both tractor brake pedals are depressed.
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The hydraulic lift Electronic Draft Control V alve a stack type design mounted together with the Remote Control V alves (1) the rear below the and incorporates the safety valve for the lift cylinders
The lift cylinder safety valve protects the lift cylinder from shock loadings and limits the pressure the cylinder 210 - 215 bar
The hydraulic lift control valve a proportional solenoid operated controlled a microprocessor , raise and lower the hydraulic
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Closed centre load sensing remote control valves
There are two types remote valves available for the closed centre Standard fitment are the mechanical remote valves operated via a cable from within the cab and optional all x models are electro hydraulically operated (1) , Figure , which are operated electrical switches and have their own - built processor control oil flow via a solenoid four mechanical type valves can
- PNEUMA TIC -
HYDRAULIC
ELECTRICAL - ELECTRONIC SYSTEMS - PRIMAR Y HYDRAULIC POWER SYSTEM
10/05/2010 A.10.A /
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Hydraulic Lift
Models with mechanical draft control utilize a main lift cylinder which located internally within the rear axle top cover and also one two external cylinders depending specification , Figure
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Models with electronic draft control utilize two external one per lift anchored the rear axle with a Figure
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Suspended front axle control valve.
Located the right hand side the tractor and attached the rear axle centre Receives high pressure via the trailer brake and with the use processor controlled PWM valves controls oil a cylinder , attached between the front axle and front provide a hydraulically controlled suspended front
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- ELECTRONIC SYSTEMS - PRIMAR Y HYDRAULIC POWER SYSTEM
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Front
BAIL07APH357HSA
Hydraulic
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HYDRAULIC - PNEUMA TIC - ELECTRICAL - ELECTRONIC SYSTEMS - PRIMAR Y HYDRAULIC POWER SYSTEM
axle front support hydraulic control cylinder (1)
system
Figure shows the main hydraulic filter (1) for tractors fitted with x T ransmission with mechanical draft control .
Figure shows the main hydraulic filters for tractors with fixed displacement hydraulic pump. this type pump only fitted tractors with x with mechanical draft
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HYDRAULIC - PNEUMA TIC - ELECTRICAL - ELECTRONIC SYSTEMS - PRIMAR Y HYDRAULIC POWER SYSTEM
BSE2928A
The main filter (3) and the charge filter (1) Figure are only installed tractors with variable displacement pump (CCLS system).
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The main filter (1) and the charge filter (2) Figure are installed tractors with variable displacement pump (CCLS
BAIS06CCM055A V A
Mid -
Mount Remote V
Optional additional remote valves are mounted under the Connected into the high pressure oil line supplied from the hydraulic pump after the trailer brake valve and operated via a joystick control the
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Intake Filter T ransmission Feed Pressure Filter
Main Intake (Suction) Filter Charge Filter
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HYDRAULIC - PNEUMA TIC - ELECTRICAL - ELECTRONIC SYSTEMS - PRIMAR Y HYDRAULIC POWER SYSTEM High Pressure Hydraulic System, Fixed Displacement Pump - Electrical Switches
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T emperature Switch
Switch Steering Pressure Switch
Pressure Hydraulic System, V ariable
Pump(CCLS) - Electrical Switches
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Oil
Intake Filter restriction (vacuum)
High
Displacement
Intake
restriction
Low Oil T emperature
Low
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Filter
(vacuum) Switch
Switch
Charge Pressure W arning Switch
Low Charge Pressure W arning Switch
Low Oil T emperature Switch
Steering Motor
Intake Filter restriction (vacuum) Switch
There are two types steering motors fitted depending whether the tractor with less Supersteer The with Supersteer models are a Dynamic load sensing type with a variable depending the speed the steering wheel The less Supersteer models use a fixed displacement motor
Steering
Receives high pressure oil directly from the steering motor .
Load Sensing Shuttle V alve.
Located each remote valve the Electronic Draft Control valve and between the trailer brake front pension valve and mid - mounted where the load sensing shuttle valve (2) This allows the function with the highest pressure demand send sensing pressure the load sensing Figure , the variable displacement
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HYDRAULIC - PNEUMA TIC - ELECTRICAL
- ELECTRONIC SYSTEMS - PRIMAR Y HYDRAULIC POWER SYSTEM
BAIL07APH325ASA
BSD2178A
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V alve Body
Flow Compensating V alve
Pressure Compensator V alve
Load Sensing Line
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With Reference PRIMAR Y HYDRAULIC POWER SYSTEM - Overview (A.10.A)
Operation the closed centre high pressure hydraulic circuit follows: -
The components the high pressure hydraulic circuit are connected their load sensing lines the hydraulic load sensing valve which controls the output the hydraulic
When the trailer remote control hydraulic lift front axle suspension (where fitted) are the load sensing valve variable flow piston compares the pressure the component load sense line with the output pressure the hydraulic
pump output pressure less than the combined pressure the load sense line and spring force the flow trol then pump output continues When circuit demand satisfied pump pressure overcomes the combined pressure the load sense line and flow compensating valve spring. This moves the spool the flow pensating valve the allowing control pressure oil directed the variable flow swash plate servo which - strokes the pump adjust output circuit
For a detailed explanation the load sensing operating principle the variable flow piston pump refer Hydraulic pump Fixed displacement pump - Static description (A.10.A)
High Pressure oil fed a subplate the bottom the remote valve stack where directed the T railer Brake valve which has priority for safety The oil then redirected the Electronic Draft Control V alve and the Electro - Hydraulic Remote V Within the subplate a pressure compensating valve which diverts the oil the low pressure system a pressure - bar
High Pressure oil also fed the top the Remote V alve stack through end plate which incorporates a pressure limiting valve and this supplies oil - bar the pilot line galleries the Electro - Hydraulic Remote V alves. Surplus oil from the charge pump the variable displacement pump fed past the bar valve and boosts the pressure the lubrication
Refer PRIMAR Y HYDRAULIC POWER SYSTEM - Overview
FIXED DISPLACEMENT HIGH PRESSURE HYDRAULIC CIRCUIT
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high pressure hydraulic systems with fixed displacement all components are connected series and pump flow continually circulating through the hydraulic system even when the circuits are not being The priority operation given the order components the that trailer remote valves and hydraulic
The high pressure hydraulic circuits for tractors installed with mechanically controlled hydraulic lift are shown ures and include the components shown the following Fixed displacement hydraulic pump assembly comprising the high pressure gear pump and steering / low pressure gear pump
HYDRAULIC - PNEUMA TIC - ELECTRICAL
BSE3806A High Pressure Circuit Components and Pipework T ractors with Mechanical Hydraulic Lift and Fixed Displacement Hydraulic Pump 1 Remote Control V alves 2 Feed T o Mechanical Draft Control V alve 3 Mechanical Draft Control V alve 4 Steering Pump (Steering Circuit) 5 High Pressure Circuit Gear Pump 6 Hose T o Pressure Relief V alve 7 Feed T o Lift Cylinder 8 Pressure Relief V alve( 195 - 205 Bar ) 9 High Pressure Feed T o Remote V alve Stack
- ELECTRONIC SYSTEMS - PRIMAR Y HYDRAULIC POWER SYSTEM
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HYDRAULIC - PNEUMA TIC - ELECTRICAL - ELECTRONIC SYSTEMS - PRIMAR Y HYDRAULIC POWER SYSTEM
High pressure circuit relief valve (1) located the right hand side the top cover diverts pump flow sump the system pressure reaches 190 bar ( 2755 lbf / in2
The trailer brake valve located beneath the cab top the hydraulic lift cover The valve diverts oil pressure the trailer brakes whenever the right hand tractor brake pedals This unlike the valve installed the closed centre system where both pedals have depressed order for the valve The trailer brake has absolute priority over other services the circuit.
The remote valves are available two, three four valves per tractor .
The valves can double - acting with float and kick
Double acting convertible single - acting with
Double acting convertible single -
When four remote valves are installed the optional flow divider valve (1) available enabling simultaneous operation remote valve 1 with another remote valve hydraulic lift.
tractors which are fitted with mechanical hydraulic lift, the lift cylinder control valve (1) assembly located the front the hydraulic lift assembly The lift cylinder safety valve mounted the rear face the control valve which must removed obtain This safety valve will operate between 210 - 215 Bar
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