Case IH 2377/2388/2577/2588 Combine Harvester Service & Repair Manual
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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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The Case IH 2377/2388/2577/2588 Combine Harvester Service & Repair Manual is an essential resource designed to help professional mechanics and DIY enthusiasts maintain, repair, and optimize the performance of your combine harvester. This comprehensive manual focuses on the specific models and includes the following features:
- Detailed service and repair procedures specifically for the Case IH 2377, 2388, 2577, and 2588 combine harvesters.
- A complete workshop manual offering step-by-step instructions for repair and maintenance tasks.
- Guidance on removal, installation, disassembly, and assembly of critical combine harvester components.
- Inclusion of electrical wiring diagrams and hydraulic schematics to assist in troubleshooting systems.
- Diagnostic procedures to help identify and resolve issues during routine servicing.
- Specifications and torque values to ensure precise and reliable maintenance work.
- A reliable tool for both long-term upkeep and emergency repairs, ensuring optimal performance and longevity of your equipment.
