84125963 - TOC - I
2377/88 AND 2577/88 COMBINE REPAIR MANUAL
Publication Number 84125893
MAIN TABLE OF CONTENTS
Book 1 - General, Engine and Fuel System
Publication Number: 6-17160
Section 1001 - Standard Torque Specifications
Decimal Hardware .................................................................................................................................. 1001-2
Metric Hardware ...................................................................................................................................... 1001-3
Hydraulic Fittings ..................................................................................................................................... 1001-4
LOCTITE® Product Chart ........................................................................................................................ 1001-5
Section 1010 - Fluid and Lubricants
Engine ..................................................................................................................................................... 1010-2
Cooling System ....................................................................................................................................... 1010-2
Fuel System ............................................................................................................................................ 1010-2
Transmission ............................................................................................................................................ 1010-2
Final Drive ............................................................................................................................................... 1010-2
Hydraulic Reservoir ................................................................................................................................. 1010-2
PTO Housing ........................................................................................................................................... 1010-2
Feeder and Cleaning Fan Gear Case ..................................................................................................... 1010-2
Lower Unloader Gear Case .................................................................................................................... 1010-2
Feeder Reverse Gear Case .................................................................................................................... 1010-3
Rotor Gear Case ...................................................................................................................................... 1010-3
Straw Chopper Gear Case ...................................................................................................................... 1010-3
Air Conditioning Refrigerant Capacity ..................................................................................................... 1010-3
Synthetic Lubricants ................................................................................................................................. 1010-3
Section 2020 - Engine Removal and Installation
Specifications ........................................................................................................................................... 2020-2
Special Torques ....................................................................................................................................... 2020-2
Special Tools ............................................................................................................................................ 2020-2
Engine Removal ...................................................................................................................................... 2020-3
Engine Installation .................................................................................................................................. 2020-13
Engine Components and Fuel System
Refer to Engine Service Manual for additional information
84125963 - TOC - II
Book 2 - Electrical
Publication Number: 6-17170
Section 4000 - How It Works
Combine Ground Points .............................................................................................................................. 3B-6
Main Valve Assembly Solenoid Functions .................................................................................................. 3B-7
Diode Module Locations ............................................................................................................................. 3B-8
Cranking and Power Distribution Circuit ................................................................................................... 3B-10
Charging Circuit ........................................................................................................................................ 3B-11
Power Distribution System ........................................................................................................................ 3B-13
Feedback Module ..................................................................................................................................... 3B-14
Fuel Pump ................................................................................................................................................. 3B-16
Ether Start ................................................................................................................................................. 3B-16
Windshield Wipers .................................................................................................................................... 3B-18
Right Post Instrumentation Center ............................................................................................................ 3B-20
Instrumentation "A" Post Changes ............................................................................................................ 3B-22
Grain Scan Monitor ................................................................................................................................... 3B-24
Shaft Speed Monitor ................................................................................................................................. 3B-32
Digital Tachometer .................................................................................................................................... 3B-40
Header Height Display .............................................................................................................................. 3B-43
Calibration ................................................................................................................................................. 3B-45
Instrument Panel and Warning Lights ....................................................................................................... 3B-57
Warning Lights .......................................................................................................................................... 3B-62
Radio Circuit ............................................................................................................................................. 3B-74
Auxiliary Power Circuit .............................................................................................................................. 3B-75
Air Seat ..................................................................................................................................................... 3B-76
Park Brake Circuit ..................................................................................................................................... 3B-77
Dead Engine and/or No Hydraulic Pressure Park Brake Release ............................................................ 3B-79
Cleaning Fan Speed Circuit ...................................................................................................................... 3B-81
Rotor Speed Motor Circuit ........................................................................................................................ 3B-83
Concave Adjustment Circuit ...................................................................................................................... 3B-86
Heating Ventilation Air Conditioning System (1999 and earlier) ............................................................... 3B-90
Heating Ventilation Air Conditioning System (2000 and later) ................................................................ 3B-102
Lighter, Horn and Dome Lights ............................................................................................................... 3B-173
Service Lights, Beacon and Back Lighting .............................................................................................. 3B-183
Power Guide Axle and Variable Propulsion Motor .................................................................................. 3B-184
Header Operation ................................................................................................................................... 3B-185
Reel Operation ........................................................................................................................................ 3B-213
Diagnostics - Instrumentation and Header Controller ............................................................................. 3B-216
Feeder and Separator Clutch Controls ................................................................................................... 3B-280
Feeder Reverser Controls ....................................................................................................................... 3B-283
Header Tilt (Field Tracker®) .................................................................................................................... 3B-286
Reel Control Circuit ................................................................................................................................. 3B-305
Unloader Control Circuit .......................................................................................................................... 3B-309
84125963 - TOC - III
Book 3 - Electrical and Steering
Publication Number: 87571763
Section 4001 - Lighting Circuit
Objectives ................................................................................................................................................ 4001-3
Operators Control .................................................................................................................................... 4001-5
Lighting Circuit Components .................................................................................................................... 4001-7
Service Lights and Sieve Light ............................................................................................................... 4001-20
Beacon and Back Lighting ..................................................................................................................... 4001-21
Section 4002 - Wiring Schematics and Troubleshooting, P.I.N. Prior to HAJ0295001
Special Tools ............................................................................................................................................ 4002-3
Fuses and Relay Identification ................................................................................................................. 4002-4
Instrumentation and Controls ................................................................................................................... 4002-6
Chassis Connector and Component Locations ...................................................................................... 4002-12
Splice Modules ....................................................................................................................................... 4002-27
Electrical Connectors ............................................................................................................................. 4002-33
Electrical Wire Designations .................................................................................................................. 4002-55
Starter and Power Distribution ............................................................................................................... 4002-62
Power Distribution System ..................................................................................................................... 4002-64
Grain Scan Monitor Circuit Testing ........................................................................................................ 4002-67
Instrumentation ...................................................................................................................................... 4002-72
Rotor Speed Adjustment Motor Circuit .................................................................................................. 4002-76
Power Guide Axle and Variable Propulsion ............................................................................................ 4002-81
Header Controller ................................................................................................................................... 4002-83
Feeder and Separator Controls .............................................................................................................. 4002-86
Header Tilt ............................................................................................................................................. 4002-88
Reel and Unloader Control .................................................................................................................... 4002-90
Machine Ground Locations .................................................................................................................... 4002-95
Combine Diagnostics ............................................................................................................................. 4002-96
Section 4003 - Wiring Schematics and Troubleshooting, P.I.N. HAJ0295001 and After
Special Tools ............................................................................................................................................ 4003-3
Fuse Use and Relay Identification ......................................................................................................... 4003-4
Relays .................................................................................................................................................... 4003-5
Machine Ground Locations .................................................................................................................... 4003-6
Instrumentation and Controls ................................................................................................................. 4003-7
Cab Connector and Component Locations ............................................................................................ 4003-9
Chassis Connector and Component Locations .................................................................................... 4003-15
Splice Modules ..................................................................................................................................... 4003-29
Electrical Connectors ........................................................................................................................... 4003-33
Cranking Motor (Starter) and Power Distribution ................................................................................. 4003-52
Power Distribution System .................................................................................................................... 4003-54
Grain Scan Monitor Circuit Testing ...................................................................................................... 4003-57
Instrumentation ..................................................................................................................................... 4003-62
Rotor Speed Adjustment Motor Circuit ................................................................................................ 4003-66
Power Guide Axle and Variable Propulsion .......................................................................................... 4003-71
Header Controller ................................................................................................................................. 4003-73
Feeder and Separator Controls ............................................................................................................ 4003-76
Header Tilt ........................................................................................................................................... 4003-78
Reel and Unloader Control .................................................................................................................. 4003-80
Machine Ground Locations .................................................................................................................. 4003-85
Combine Diagnostics ........................................................................................................................... 4003-86
84125963 - TOC - IV
Section 4050 - Neutral Start Switch
Neutral Start Switch ................................................................................................................................. 4050-3
Starting Procedure with Auxiliary Batteries .............................................................................................. 4050-4
Section 4235 - Battery Servicing and Testing
Battery Condition Check .......................................................................................................................... 4235-2
Specific Gravity Check ............................................................................................................................. 4235-4
Capacity (Load) Test ................................................................................................................................ 4235-5
Three Minute Charge Test ....................................................................................................................... 4235-6
Testing Battery Cell with Cadmium Probes .............................................................................................. 4235-7
Test Procedure for 12-Volt Battery ........................................................................................................... 4235-8
Battery Leakage Test ............................................................................................................................... 4235-9
Battery Fast Charging .............................................................................................................................. 4235-9
Battery Charging .................................................................................................................................... 4235-10
Activating Dry Charged Batteries ........................................................................................................... 4235-11
Section 5020 - Steering Hand Pump
Special Torques ....................................................................................................................................... 5020-3
Special Tools ............................................................................................................................................ 5020-2
Pump Removal ........................................................................................................................................ 5020-3
Pump Disassembly .................................................................................................................................. 5020-3
Cleaning and Inspection .......................................................................................................................... 5020-6
Pump Assembly ....................................................................................................................................... 5020-8
Pump Installation ................................................................................................................................... 5020-12
Section 5030 - Steering Cylinder
Special Torques ....................................................................................................................................... 5030-3
Cylinder Removal ..................................................................................................................................... 5030-4
Cylinder Installation .................................................................................................................................. 5030-4
Combines with Power Guide Wheels ....................................................................................................... 5030-6
Cylinder Disassembly .............................................................................................................................. 5030-6
Cylinder Assembly ................................................................................................................................... 5030-6
Section 5040 - Steering Axle - all except Power Guide
Specifications ........................................................................................................................................... 5040-2
Special Torques ....................................................................................................................................... 5040-2
Servicing the Wheel Bearing ................................................................................................................... 5040-3
Servicing the Tie Rod .............................................................................................................................. 5040-5
Toe-In Adjustment .................................................................................................................................... 5040-7
Spindle Disassembly and Assembly ........................................................................................................ 5040-8
Heavy Duty Spindle Disassembly and Assembly ................................................................................... 5040-10
Servicing Steering Axle Supports .......................................................................................................... 5040-12
Axle Pivot Support Installation Positions ................................................................................................ 5040-15
Pivot Support Position Chart .................................................................................................................. 5040-16
Servicing Axle Pivots ............................................................................................................................. 5040-18
Axle Extension Mounting Locations ....................................................................................................... 5040-20
Axle Stabilizer ........................................................................................................................................ 5040-22
Axle Shield ............................................................................................................................................. 5040-24
Section 5054 - Steering Axle - Power Guide
Special Torques ....................................................................................................................................... 5054-2
Wheel Motor Removal ............................................................................................................................. 5054-3
Wheel Motor Disassembly ....................................................................................................................... 5054-4
Wheel Motor Cleaning and Inspection ................................................................................................... 5054-10
Wheel Motor Assembly .......................................................................................................................... 5054-12
84125963 - TOC - V
Cross-Sectional Drawing ....................................................................................................................... 5054-20
Wheel Motor Installation ........................................................................................................................ 5054-21
Selector Valve Removal ......................................................................................................................... 5054-24
Selector Valve Disassembly ................................................................................................................... 5054-26
Selector Valve Cleaning and Inspection ................................................................................................. 5054-30
Selector Valve Assembly ........................................................................................................................ 5054-32
Selector Valve Installation ...................................................................................................................... 5054-39
King Pin Removal ................................................................................................................................... 5054-42
King Pin Cleaning and Inspection .......................................................................................................... 5054-43
King Pin Installation ............................................................................................................................... 5054-44
Toe-In Adjustment .................................................................................................................................. 5054-47
Propulsion System Air Removal ............................................................................................................. 5054-48
Section 5080 - Steering Priority Valve
Specifications ........................................................................................................................................... 5080-2
Special Torques ....................................................................................................................................... 5080-2
Valve Removal ......................................................................................................................................... 5080-3
Valve Disassembly ................................................................................................................................... 5080-3
Valve Cleaning and Inspection ................................................................................................................. 5080-4
Valve Assembly ........................................................................................................................................ 5080-6
Valve Installation ...................................................................................................................................... 5080-8
Removing Air from the System ................................................................................................................ 5080-9
84125963 - TOC - VI
Book 4 - Power Train
Publication Number: 84125894
Section 6000 - Hydrostatic Operation
Objectives ................................................................................................................................................ 6000-3
System Operations .................................................................................................................................. 6000-4
General Information ................................................................................................................................. 6000-5
System Components ................................................................................................................................ 6000-7
Reservoir and Filtration ............................................................................................................................ 6000-8
System Components and Function .......................................................................................................... 6000-9
System Operations ................................................................................................................................ 6000-24
Neutral ............................................................................................................................................... 6000-25
Charge & Shuttle Pressure Relief ...................................................................................................... 6000-26
Directional Control Valve ................................................................................................................... 6000-29
Forward .............................................................................................................................................. 6000-31
Reverse ............................................................................................................................................. 6000-35
High Pressure Relief System ................................................................................................................. 6000-37
Foot-N-Inch Valve .............................................................................................................................. 6000-40
Internal Pressure Override Control .................................................................................................... 6000-43
Two Speed Hydrostatic Motor Operation ............................................................................................... 6000-44
Test and Adjusting Procedures .............................................................................................................. 6000-52
Contamination ................................................................................................................................... 6000-55
Specifications .................................................................................................................................... 6000-56
Purging the System ........................................................................................................................... 6000-57
Adjustment of Propulsion Control ...................................................................................................... 6000-58
Pressure Adjustment ......................................................................................................................... 6000-61
Charge Pressure ............................................................................................................................... 6000-62
Servo Pressure .................................................................................................................................. 6000-66
Two Speed Motor Servo Pressure ..................................................................................................... 6000-68
Drive Pressure ................................................................................................................................... 6000-72
Foot-N-Inch Valve .............................................................................................................................. 6000-74
Internal Pressure Override Valve ....................................................................................................... 6000-76
Drive Alignment ...................................................................................................................................... 6000-78
Drive Hub ............................................................................................................................................... 6000-85
Power Guide Axle .................................................................................................................................. 6000-86
Electrical System ............................................................................................................................... 6000-89
System Components & Functions ..................................................................................................... 6000-90
Valve Ports ......................................................................................................................................... 6000-92
Wheel Motor Ports ............................................................................................................................. 6000-93
Valve Low Pressure Shuttle ............................................................................................................... 6000-94
Disengaged Position .......................................................................................................................... 6000-98
Intermediate Position ....................................................................................................................... 6000-100
Engaged Position ............................................................................................................................. 6000-102
Flow Divider Spools ......................................................................................................................... 6000-106
Cam Lobe Motor .................................................................................................................................. 6000-108
How It Works ................................................................................................................................... 6000-109
Wheel Motor Flush Circuit ............................................................................................................... 6000-110
Motor Case Flush System ............................................................................................................... 6000-111
Test Procedures ................................................................................................................................... 6000-113
Start-Up Procedure Rear Wheel Drive ............................................................................................ 6000-114
Specifications .................................................................................................................................. 6000-115
Isolating the Problem ....................................................................................................................... 6000-116
Low Pressure Shuttle Valve ............................................................................................................. 6000-118
Solenoid Operation .......................................................................................................................... 6000-120
Selector Spool Operation ................................................................................................................ 6000-122
Wheel Motor Leakage ..................................................................................................................... 6000-124
84125963 - TOC - VII
Section 6001 - Hydrostatics
Neutral Operation ..................................................................................................................................... 6001-2
Forward and Reverse ............................................................................................................................... 6001-3
Swash Plate Position ............................................................................................................................... 6001-5
Variable Displacement Pump and Motor .................................................................................................. 6001-7
Hydrostatic Circuit by Progression ........................................................................................................... 6001-8
Reservoir ................................................................................................................................................ 6001-11
Heat Exchanger ..................................................................................................................................... 6001-13
Charge Pump and Check Valve ............................................................................................................. 6001-15
Inlet Filter ............................................................................................................................................... 6001-17
Manual Displacement Control Valve ...................................................................................................... 6001-19
High Pressure Relief Valve .................................................................................................................... 6001-21
Shuttle and Charge Pressure Relief Valve ............................................................................................. 6001-23
Foot-N-Inch Valve .................................................................................................................................. 6001-25
Internal Pressure Override ..................................................................................................................... 6001-27
Section 6005 - Hydrostatic Drive System Troubleshooting
Transmission Will Not Operate in Either Direction ................................................................................... 6005-3
Transmission Operates in One Direction ................................................................................................. 6005-4
Sluggish Performance .............................................................................................................................. 6005-4
System Noisy ........................................................................................................................................... 6005-4
Difficultly in Finding Neutral ..................................................................................................................... 6005-5
Transmission Operating Hot ..................................................................................................................... 6005-5
Section 6012 - Hydrostatic Drive System Testing
General Test Information .......................................................................................................................... 6012-2
Special Tools ............................................................................................................................................ 6012-2
Hydrostatic Drive Schematic Symbols ..................................................................................................... 6012-3
Schematic - Corn/Grain, Single Speed .................................................................................................... 6012-4
Schematic - Corn/Grain, Two Speed ........................................................................................................ 6012-5
Schematic - Rice, Two Speed .................................................................................................................. 6012-6
Testing the Hydrostatic Drive System ...................................................................................................... 6012-7
Section 6015 - Foot-N-Inch Valve
Valve Specifications ................................................................................................................................. 6015-2
Special Tools ............................................................................................................................................ 6015-2
Valve Removal ......................................................................................................................................... 6015-3
Valve Disassembly ................................................................................................................................... 6015-3
Valve Inspection ....................................................................................................................................... 6015-3
Valve Assembly ........................................................................................................................................ 6015-3
Valve Installation ...................................................................................................................................... 6015-4
Foot-N-Inch Pedal Adjustment ................................................................................................................. 6015-4
Section 6017 - Hydraulic Drive Pump Removal and Installation
Drive Pump Specifications ...................................................................................................................... 6017-2
Pump Special Torques ............................................................................................................................. 6017-2
Pump Removal and Installation ............................................................................................................... 6017-3
Section 6018 - Hydrostatic Drive Pump
Pump Special Torques ............................................................................................................................. 6018-2
Special Tools ............................................................................................................................................ 6018-2
Shop Equipment Tools ............................................................................................................................. 6018-2
Pump Identification .................................................................................................................................. 6018-3
Tools to be Made ...................................................................................................................................... 6018-3
Servicing the Hydrostatic Drive Pump ..................................................................................................... 6018-4
84125963 - TOC - VIII
Charge Pump ........................................................................................................................................... 6018-8
Power Limiter Valve End Cover ................................................................................................................ 6018-9
Internal Pressure Override Valve ........................................................................................................... 6018-10
Control Valve .......................................................................................................................................... 6018-11
Section 6030 - Hydrostatic Drive Motor - Single Speed
Special Torques ....................................................................................................................................... 6030-3
Special Tools ............................................................................................................................................ 6030-3
Motor Identification ................................................................................................................................... 6030-3
Tools to be Made ...................................................................................................................................... 6030-4
Drive Motor Disassembly ......................................................................................................................... 6030-4
Drive Motor Assembly .............................................................................................................................. 6030-4
Relief Valve Block Disassembly and Assembly ...................................................................................... 6030-12
Section 6031 - Hydrostatic Drive Motor - Two Speed
Motor Specifications ................................................................................................................................. 6031-2
Special Torques ....................................................................................................................................... 6031-3
Special Tools to be Made ......................................................................................................................... 6031-3
Special Tools ............................................................................................................................................ 6031-4
Hydrostatic Drive Motor - Two Speed ...................................................................................................... 6031-5
Response Valve Disassembly ............................................................................................................. 6031-5
Response Valve Assembly .................................................................................................................. 6031-5
Block Valve and End Cover Disassembly .......................................................................................... 6031-16
Block Valve and End Cover Assembly ............................................................................................... 6031-20
Servo Cylinder Disassembly .............................................................................................................. 6031-26
Servo Cylinder Assembly .................................................................................................................. 6031-28
Barrel Disassembly ............................................................................................................................ 6031-29
Barrel Assembly ................................................................................................................................ 6031-33
Drive Shaft Seal and Front Cover Disassembly ................................................................................. 6031-37
Drive Shaft Seal and Front Cover Assembly ..................................................................................... 6031-40
Swash Plate and Trunnion Service .................................................................................................... 6031-45
Section 6035 - Transmission and Hydrostatic Drive Motor
Hydrostatic Motor Removal and Installation ............................................................................................ 6035-3
Transmission Removal and Installation .................................................................................................... 6035-5
Gear Shift Control Cable Adjustment ....................................................................................................... 6035-8
Propulsion System Air Removal ............................................................................................................. 6035-9
Section 6040 - Transmission Service
Transmission Specifications ..................................................................................................................... 6040-3
Special Torques ....................................................................................................................................... 6040-3
Special Tools ............................................................................................................................................ 6040-3
Transmission General Information ........................................................................................................... 6040-4
Brake Assembly and Transmission Cover Removal ................................................................................. 6040-5
Shifter Rails and Shift Fork Removal ....................................................................................................... 6040-6
Input Housing and Shaft Removal ........................................................................................................... 6040-8
Change Gear Shaft Removal and Disassembly ..................................................................................... 6040-10
Differential Removal and Disassembly .................................................................................................. 6040-12
Differential Pinion Shaft Removal and Disassembly .............................................................................. 6040-15
Differential Pinion Shaft Assembly and Installation ................................................................................ 6040-19
Setting Differential Pinion Shaft End Play .......................................................................................... 6040-24
Differential Assembly and Installation .................................................................................................... 6040-26
Measuring Shim Thickness ............................................................................................................... 6040-28
Change Gear Shaft Assembly .............................................................................................................. 6040-31
Input Housing and Shaft Assembly ........................................................................................................ 6040-33
Change Gear Shaft and Input Housing Installation ................................................................................ 6040-35
84125963 - TOC - IX
Setting Change Gear Shaft End Play .................................................................................................... 6040-37
Measuring Internal Spline Shaft Wear ................................................................................................... 6040-38
Shifter Rails and Shift Fork Assembly .................................................................................................... 6040-40
Transission Cover and Brake Installation ............................................................................................... 6040-43
Cross Sectional Transmission Drawing .................................................................................................. 6040-45
Section 6060 - Final Drives - Removal and Overhaul
Final Drives Specifications ....................................................................................................................... 6060-2
Special Tools ............................................................................................................................................ 6060-2
Final Drives Removal ............................................................................................................................... 6060-3
Final Drives Disassembly ......................................................................................................................... 6060-4
Cleaning and Inspection .......................................................................................................................... 6060-8
Final Drives Assembly ............................................................................................................................. 6060-8
Final Drives Installation .......................................................................................................................... 6060-15
Section 6061 - Final Drives - Removal and Adjusting
Special Torques ....................................................................................................................................... 6061-2
Final Drives General Information ............................................................................................................. 6061-2
Final Drives Removal ............................................................................................................................... 6061-3
Final Drives Installation ............................................................................................................................ 6061-4
Extension and Dual Extension ................................................................................................................. 6061-4
Final Drives - Small Flange ...................................................................................................................... 6061-6
Final Drives - Large Flange ...................................................................................................................... 6061-8
Section 6064 - PTO - How It Works
Objectives ................................................................................................................................................ 6064-3
PTO Gear Housing ................................................................................................................................... 6064-4
PTO Housing ............................................................................................................................................ 6064-5
Separator Drive Housing .......................................................................................................................... 6064-6
Variable Rotor Speed Pulley (Driver) ....................................................................................................... 6064-8
Three Speed Rotor Drive Gearbox ........................................................................................................ 6064-12
Torque Sensing Pulley (Driven Pulley) ................................................................................................... 6064-13
Rotor Belt Alignment .............................................................................................................................. 6064-14
Rotor Drive Alignment Gauge ................................................................................................................ 6064-15
Jackshaft Assembly Alignment .............................................................................................................. 6064-16
Variable Rotor Speed Pulley Limit Switches .......................................................................................... 6064-18
Driven Pulley Adjustment ....................................................................................................................... 6064-20
Rotor Drive Gearbox .............................................................................................................................. 6064-21
Section 6065 - PTO Removal and Installation
Special Torques ....................................................................................................................................... 6065-2
Special Tools ............................................................................................................................................ 6065-2
PTO Removal ........................................................................................................................................... 6065-3
PTO Installation ........................................................................................................................................ 6065-3
Section 6071 - Servicing the PTO Housing
Specifications ........................................................................................................................................... 6071-2
Special Torques ....................................................................................................................................... 6071-2
Special Tools ............................................................................................................................................ 6071-3
PTO Housing Disassembly ...................................................................................................................... 6071-4
PTO Housing Assembly ........................................................................................................................... 6071-4
PTO Clutch Disassembly ....................................................................................................................... 6071-11
PTO Clutch Assembly ............................................................................................................................ 6071-11
84125963 - TOC - X
Book 5 - Brakes and Hydraulics
Publication Number: 84125895
Section 7010 - Brake Assemblies - Removal and Overhaul
Specifications ........................................................................................................................................... 7010-2
Brake Assemblies Disassembly ............................................................................................................... 7010-3
Brake Assemblies Assembly .................................................................................................................... 7010-7
Brake Assembly Cross-Section Drawing ............................................................................................... 7010-13
Section 7020 - Master Brake Valve
Special Torques ....................................................................................................................................... 7020-2
Specifications ........................................................................................................................................... 7020-2
Brake Valve Removal ............................................................................................................................... 7020-3
Brake Valve Disassembly ......................................................................................................................... 7020-4
Brake Valve Assembly ............................................................................................................................. 7020-7
Brake Valve Installation .......................................................................................................................... 7020-12
Section 7030 - European Park Brake
Special Torques ....................................................................................................................................... 7030-2
Specifications ........................................................................................................................................... 7030-2
Special Tools ............................................................................................................................................ 7030-2
Park Brake Valve Removal ....................................................................................................................... 7030-3
Park Brake Valve Disassembly ................................................................................................................ 7030-5
Valve Cleaning and Inspection ................................................................................................................. 7030-6
Park Brake Valve Assembly ..................................................................................................................... 7030-6
Park Brake Valve Installation ................................................................................................................... 7030-7
Park Brake Cable Adjustment .................................................................................................................. 7030-9
Charging the Accumulator ..................................................................................................................... 7030-11
Removing Air from the Brake System .................................................................................................... 7030-13
Section 8000 - Hydraulics, How It Works
Basic Principles of the System ................................................................................................................ 8000-3
Hydraulic Component Locations .............................................................................................................. 8000-5
General Information ................................................................................................................................. 8000-6
Hydraulic Reservoir and Filters ................................................................................................................ 8000-7
Hydraulic Pumps and Drive System ........................................................................................................ 8000-9
PFC Piston Pump .................................................................................................................................. 8000-10
Main Hydraulic Valve Assembly ............................................................................................................. 8000-19
Signal Circuits ........................................................................................................................................ 8000-20
Steering Priority Valve ............................................................................................................................ 8000-21
Main Valve Assembly ............................................................................................................................. 8000-27
Reel Raise Valve (SV1) ......................................................................................................................... 8000-36
Control Valve Operation ......................................................................................................................... 8000-47
Control Valve Orifice Identification ......................................................................................................... 8000-48
Unloader Auger Swing Valve ................................................................................................................. 8000-50
Reel Fore/Aft Valve ................................................................................................................................ 8000-58
Field Tracker® Valve .............................................................................................................................. 8000-62
Header Valve ......................................................................................................................................... 8000-68
Accumulator ........................................................................................................................................... 8000-74
Auxiliary Gear Pump .............................................................................................................................. 8000-80
Pressure Regulator Valve ...................................................................................................................... 8000-82
Unloader Auger Clutch Valve ................................................................................................................. 8000-86
Park Brake Operation ............................................................................................................................. 8000-94
Tow Valve ............................................................................................................................................... 8000-98
Feeder Clutch Solenoid ....................................................................................................................... 8000-100
Reel Drive Valve .................................................................................................................................. 8000-102
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