Case IH Patriot 4420 Service Manual
What's Included?
Lifetime Access
Fast Download Speeds
Online & Offline Access
Access PDF Contents & Bookmarks
Full Search Facility
Print one or all pages of your manual
84202158-2
PATRIOT 4420 MASTER TABLE OF CONTENTS
NOTE: Engine repair information is not contained within this service manual. For engine repair on this machine
see 87515687 Agricultural Products Service Manuals 8.3 and 9.0L 6 Cylinder, 24 Valve CNH Engine With High
Pressure Common Rail Fuel System.
ELECTRICAL SCHEMATIC - CAB ............................................................................................................ 84202131
ELECTRICAL SCHEMATIC - APPLICATION ............................................................................................ 84202154
HYDRAULIC SCHEMATIC ......................................................................................................... POSTER 84202156
STANDARD TORQUE SPECIFICATIONS ........................................................ SECTION 1000 (Book 1 84190697)
TORQUE SPECIFICATIONS - U.S. HARDWARE ...................................................................................... 1000-3
TORQUE SPECIFICATIONS - METRIC HARDWARE ................................................................................ 1000-5
TORQUE SPECIFICATIONS - STEEL HYDRAULIC FITTINGS ................................................................. 1000-7
TORQUE SPECIFICATIONS - TIGHTENING SEQUENCE FOR PLANETARY DRIVE ............................. 1000-9
SAFETY.............................................................................................................. SECTION 1010 (Book 1 84190697)
SAFETY ....................................................................................................................................................... 1010-3
Personal Safety ........................................................................................................................................... 1010-3
Safety Rules ................................................................................................................................................ 1010-4
Machine Operation and Roll-Over Safety ................................................................................................... 1010-5
Transporting Safety ..................................................................................................................................... 1010-5
Battery Safety.............................................................................................................................................. 1010-6
Electrical Line Safety................................................................................................................................... 1010-6
Noise Level Safety ...................................................................................................................................... 1010-6
Hazardous Chemicals ................................................................................................................................. 1010-6
Maintenance Safety .................................................................................................................................... 1010-7
Instructional Seat Safety ............................................................................................................................. 1010-7
Tire Inflation ................................................................................................................................................ 1010-8
Warnings, Dangers And Cautions .............................................................................................................. 1010-9
Roll Over Protective Structure (ROPS) .................................................................................................... 1010-19
First Aid Kit ............................................................................................................................................... 1010-19
Fire Extinguisher ...................................................................................................................................... 1010-19
RH Service Window ................................................................................................................................. 1010-19
Seat Belt ................................................................................................................................................... 1010-20
LUBRICATION AND MAINTENANCE................................................................ SECTION 1020 (Book 1 84190697)
SAFETY ....................................................................................................................................................... 1020-3
SPECIAL TOOLS ......................................................................................................................................... 1020-4
MAINTENANCE SCHEDULE ...................................................................................................................... 1020-5
Recommended Break-In Maintenance ....................................................................................................... 1020-5
Lubrication and Preventive Maintenance Schedule ................................................................................... 1020-6
Machine Cleaning ...................................................................................................................................... 1020-8
Product Tank Cleaning ............................................................................................................................... 1020-8
Trailing Pivot Arm Cleaning ........................................................................................................................ 1020-9
Cab Cleaning ............................................................................................................................................. 1020-9
Brake Operation Check .............................................................................................................................. 1020-9
Safety Equipment Check .......................................................................................................................... 1020-10
Boom Cylinders And Joints ...................................................................................................................... 1020-11
Boom Parallel Link Lubrication ................................................................................................................. 1020-12
Pump Drive Fluid Check .......................................................................................................................... 1020-12
Strut And Axle Assembly Lubrication ....................................................................................................... 1020-13
Hub Lubricant Level Check ...................................................................................................................... 1020-14
Hub Lubricant Replacement ..................................................................................................................... 1020-15
Drain Water From Fuel Tank .................................................................................................................... 1020-16
Serpentine Belt Replacement .................................................................................................................. 1020-16
Compressor Belt Removal ....................................................................................................................... 1020-17
Compressor Belt Installation And Adjustment .......................................................................................... 1020-18
84202158-3
PATRIOT 4420 MASTER TABLE OF CONTENTS
SPECIFICATIONS............................................................................................. SECTION 1030 (Book 1 84190697)
SPECIFICATIONS ...................................................................................................................................... 1030-3
Diesel Engine ............................................................................................................................................ 1030-3
Engine Lubrication System ....................................................................................................................... 1030-3
Cooling System ......................................................................................................................................... 1030-3
Fuel System .............................................................................................................................................. 1030-3
Fuel Tank .................................................................................................................................................. 1030-3
Air Intake System ...................................................................................................................................... 1030-3
Battery ....................................................................................................................................................... 1030-3
Brakes ....................................................................................................................................................... 1030-3
Gear Increaser .......................................................................................................................................... 1030-4
Hub Lubricant ............................................................................................................................................ 1030-4
Hubs and Tires .......................................................................................................................................... 1030-4
Drive System ............................................................................................................................................. 1030-4
Hydraulic System ...................................................................................................................................... 1030-4
Hydraulic Pump Drive ............................................................................................................................... 1030-4
Hydraulic Pumps ....................................................................................................................................... 1030-4
Hydraulic Motors ....................................................................................................................................... 1030-4
Suspension ............................................................................................................................................... 1030-5
Steering ..................................................................................................................................................... 1030-5
Turning Radius .......................................................................................................................................... 1030-5
Wheel Adjustments ................................................................................................................................... 1030-5
Travel Speed ............................................................................................................................................. 1030-5
Cab ............................................................................................................................................................ 1030-5
Air Conditioning System ............................................................................................................................ 1030-5
Plumbing System ...................................................................................................................................... 1030-5
Dimensions ............................................................................................................................................... 1030-5
Approximate Base Shipping Weights ........................................................................................................ 1030-5
Maximum Operating Weight ...................................................................................................................... 1030-6
Engine Oil Selection .................................................................................................................................. 1030-6
Engine Oil Viscosity/Temperature Usage Recommendation .................................................................... 1030-6
Engine Coolant Solutions .......................................................................................................................... 1030-7
Tire Inflation ............................................................................................................................................... 1030-8
TOWING............................................................................................................ SECTION 1040 (Book 1 84190697)
SAFETY ...................................................................................................................................................... 1040-3
SPECIAL TORQUES .................................................................................................................................. 1040-4
SPECIAL TOOLS ........................................................................................................................................ 1040-5
PREPARING THE MACHINE FOR TOWING ............................................................................................. 1040-7
Release Parking Brake ............................................................................................................................. 1040-7
Activate Bypass Function Of The Pumps .................................................................................................. 1040-9
RETURNING TO SERVICE AFTER TOWING ......................................................................................... 1040-10
Engage Parking Brake ............................................................................................................................ 1040-10
Closing Each Bypass Valve .................................................................................................................... 1040-10
ENGINE REMOVAL AND INSTALLATION ....................................................... SECTION 2000 (Book 1 84190697)
SAFETY ...................................................................................................................................................... 2000-3
SPECIAL TORQUES .................................................................................................................................. 2000-5
SPECIAL TOOLS ........................................................................................................................................ 2000-6
ENGINE REMOVAL AND INSTALLATION ................................................................................................ 2000-7
Engine Removal ........................................................................................................................................ 2000-7
Engine Installation ................................................................................................................................... 2000-22
ENGINE ISOLATOR MOUNT ................................................................................................................... 2000-37
Engine Isolator Mount Removal .............................................................................................................. 2000-37
Engine Isolator Mount Installation ........................................................................................................... 2000-38
84202158-4
PATRIOT 4420 MASTER TABLE OF CONTENTS
AIR INDUCTION SYSTEM ................................................................................ SECTION 2010 (Book 1 84190697)
SAFETY ...................................................................................................................................................... 2010-3
SPECIAL TORQUES .................................................................................................................................. 2010-4
ENGINE AIR FILTER ELEMENTS ............................................................................................................. 2010-5
PRIMARY AND SECONDARY FILTERS ................................................................................................... 2010-6
Primary and Secondary Filter Removal .................................................................................................... 2010-6
Primary and Secondary Filter Inspection .................................................................................................. 2010-8
Primary and Secondary Filter Installation ................................................................................................. 2010-9
RESTRICTION INDICATOR SWITCH ...................................................................................................... 2010-10
Restriction Indicator Switch Removal ...................................................................................................... 2010-10
Restriction Indicator Switch Testing ........................................................................................................ 2010-10
Restriction Indicator Switch Installation ................................................................................................... 2010-11
ASPIRATOR STRATA TUBE ................................................................................................................... 2010-12
Tube Cleaning ......................................................................................................................................... 2010-12
INTAKE AIR DUCT ................................................................................................................................... 2010-14
Air Duct Removal .................................................................................................................................... 2010-14
Air Duct Installation ................................................................................................................................. 2010-15
ASPIRATOR SAFETY CHECK VALVE .................................................................................................... 2010-17
Check Valve Testing ............................................................................................................................... 2010-17
FUEL SYSTEM.................................................................................................. SECTION 2020 (Book 1 84190697)
SAFETY ...................................................................................................................................................... 2020-3
FUEL SYSTEM OVERVIEW ....................................................................................................................... 2020-4
Fuel Tank Water Drain Plug ...................................................................................................................... 2020-4
Fuel Tank Spin-On Fuel Filter Replacement ............................................................................................. 2020-4
Fuel Tank Vent .......................................................................................................................................... 2020-4
Engine Fuel Filter Water Drain Plug .......................................................................................................... 2020-5
Engine Fuel Filter Replacement ................................................................................................................ 2020-5
Fuel System Air Removal .......................................................................................................................... 2020-6
FUEL TANK REMOVAL AND INSTALLATION .......................................................................................... 2020-7
Fuel Tank Removal ................................................................................................................................... 2020-7
Fuel Tank Installation .............................................................................................................................. 2020-10
84202158-5
PATRIOT 4420 MASTER TABLE OF CONTENTS
ELECTRICAL SCHEMATIC - CAB ............................................................................................ POSTER 84202131
ELECTRICAL SCHEMATIC - APPLICATION ............................................................................ POSTER 84202154
ELECTRICAL SYSTEM..................................................................................... SECTION 4000 (Book 1 84190697)
SAFETY ...................................................................................................................................................... 4000-5
SPECIAL TOOLS ........................................................................................................................................ 4000-6
Multimeter ................................................................................................................................................. 4000-6
Duetsch Test Adaptors .............................................................................................................................. 4000-6
GENERAL INFORMATION ......................................................................................................................... 4000-7
Electrical Circuits Compared to Hydraulic ................................................................................................. 4000-7
Electrical Review ....................................................................................................................................... 4000-8
ELECTRICAL SYMBOLS ......................................................................................................................... 4000-11
DIAGNOSTICS ......................................................................................................................................... 4000-12
Power Distribution System Circuit Operation .......................................................................................... 4000-12
Power Distribution Circuit Troubleshooting ............................................................................................. 4000-12
BASIC TROUBLESHOOTING .................................................................................................................. 4000-13
Troubleshooting Tools ............................................................................................................................. 4000-13
Circuit Fundamentals .............................................................................................................................. 4000-14
Troubleshooting Procedure ..................................................................................................................... 4000-17
Troubleshooting Tests ............................................................................................................................. 4000-18
FUSE AND RELAY IDENTIFICATION ..................................................................................................... 4000-21
Electrical Bay Component Locations ...................................................................................................... 4000-21
Fuse/Relay Panel .................................................................................................................................... 4000-22
Relay Identification .................................................................................................................................. 4000-23
Fuse Identification ................................................................................................................................... 4000-24
Boom Relay Fuses And Boom Valve Power Relay ................................................................................. 4000-25
Aim Command Fuses .............................................................................................................................. 4000-25
Power Train Control Module ................................................................................................................... 4000-26
Circuit Breakers ....................................................................................................................................... 4000-27
Engine Grid Heater ................................................................................................................................. 4000-27
Engine ECU ............................................................................................................................................ 4000-28
Electrical Grounds ................................................................................................................................... 4000-28
Foam Control Module .............................................................................................................................. 4000-29
BULKHEAD AND CONNECTOR INFORMATION .................................................................................... 4000-30
Bulkhead Location ................................................................................................................................... 4000-30
Bulkhead Connector Information ............................................................................................................. 4000-32
Connector Information ............................................................................................................................. 4000-32
CHASSIS/CAB CONNECTOR INFORMATION ....................................................................................... 4000-41
Harness Frame ....................................................................................................................................... 4000-41
Harness Electric Engine .......................................................................................................................... 4000-47
Harness Front Dash ................................................................................................................................ 4000-73
Harness Cab Roof ................................................................................................................................... 4000-75
CHASSIS/CAB TROUBLESHOOTING CHARTS ..................................................................................... 4000-78
Stop Engine Light Troubleshooting Chart ............................................................................................... 4000-78
Hydraulic Caution Or Warning Light Troubleshooting Chart ................................................................... 4000-79
Light Troubleshooting Chart .................................................................................................................... 4000-79
Back-up Alarm Trouble Shooting Chart .................................................................................................. 4000-80
Power Mirror Troubleshooting Chart ....................................................................................................... 4000-80
Power Seat Troubleshooting Chart ......................................................................................................... 4000-82
Windshield Wiper System Troubleshooting Chart ................................................................................... 4000-82
Audio System Troubleshooting Chart ..................................................................................................... 4000-85
84202158-6
PATRIOT 4420 MASTER TABLE OF CONTENTS
CHASSIS/CAB COMPONENT TESTING ................................................................................................. 4000-86
Hydraulic Oil Filter Restriction Switch ..................................................................................................... 4000-86
Hydraulic Oil Level/Temp Sensors .......................................................................................................... 4000-86
Horn ........................................................................................................................................................ 4000-87
Back-Up Alarm ........................................................................................................................................ 4000-87
Cab Harnesses ....................................................................................................................................... 4000-87
Instrument Cluster ................................................................................................................................... 4000-88
Audio System .......................................................................................................................................... 4000-89
Power Seat System ................................................................................................................................. 4000-92
Power Mirror System ............................................................................................................................... 4000-96
Wiper/Washer System .......................................................................................................................... 4000-101
Light Testing .......................................................................................................................................... 4000-105
APPLICATION SYSTEM COMPONENT AND CONNECTOR INFORMATION ..................................... 4000-106
Harness Product Control ....................................................................................................................... 4000-106
Harness RH Console ............................................................................................................................ 4000-111
Harness RH Compartment .................................................................................................................... 4000-118
Harness Hydraulic Control .................................................................................................................... 4000-125
Harness Foam Pump ............................................................................................................................ 4000-129
Harness Remote Box ............................................................................................................................ 4000-130
SYSTEM TROUBLESHOOTING CHARTS ............................................................................................ 4000-132
Application System Troubleshooting Chart ........................................................................................... 4000-132
Chemical Inductor Troubleshooting Chart ............................................................................................. 4000-134
Foam Marker System Troubleshooting Chart ....................................................................................... 4000-135
Foam Concentrate Transfer System ..................................................................................................... 4000-136
Reload Station Troubleshooting Chart .................................................................................................. 4000-136
Axle Adjust and Boom Height Troubleshooting Chart ........................................................................... 4000-137
APPLICATION COMPONENT TROUBLESHOOTING ........................................................................... 4000-138
Pump Station Remote Box .................................................................................................................... 4000-138
Product Pump Control (PWM) Valve ..................................................................................................... 4000-139
PWM Valve Driver ................................................................................................................................. 4000-140
Pump On Sensor ................................................................................................................................... 4000-140
Sparge Valve ......................................................................................................................................... 4000-141
Sparge PSI ............................................................................................................................................ 4000-141
Boom Pressure Sensor ......................................................................................................................... 4000-141
Boom kPa (PSI) Switch ......................................................................................................................... 4000-142
Flowmeter ............................................................................................................................................. 4000-142
Spread/Hold Switch ............................................................................................................................... 4000-142
Radar Gun ............................................................................................................................................. 4000-143
Auto-Center Switch ............................................................................................................................... 4000-144
Axle/Boom Height Valve ....................................................................................................................... 4000-144
Fence Row Solenoid ............................................................................................................................. 4000-144
Boom Section Shut-off Valves .............................................................................................................. 4000-145
Six Section Valve Bank Boom Functions .............................................................................................. 4000-146
Foamer Marker Switch (On/Off) ............................................................................................................ 4000-147
Foam Marker Control Module ............................................................................................................... 4000-147
Foam Marker Control Potentiometer ..................................................................................................... 4000-147
Foam Marker Liquid Pump Motor .......................................................................................................... 4000-148
Foam Marker Liquid Solenoid ............................................................................................................... 4000-148
Foam Marker Air Solenoid .................................................................................................................... 4000-148
84202158-7
PATRIOT 4420 MASTER TABLE OF CONTENTS
INSTRUMENTATION AND CONTROLS ................................................................................................ 4000-149
Instrument Cluster ................................................................................................................................. 4000-149
Indicator Light Cluster ........................................................................................................................... 4000-152
Keypad .................................................................................................................................................. 4000-153
Instrument Cluster Connector Testing .................................................................................................. 4000-153
Upper Console Controls ........................................................................................................................ 4000-154
Arm Rest Console ................................................................................................................................. 4000-155
ENGINE ELECTRONIC CONTROL UNIT (ECU) ................................................................................... 4000-156
Displaying And Clearing ECU And Engine Error Codes ....................................................................... 4000-156
ECU Error Codes .................................................................................................................................. 4000-157
CNH Engine Fault Codes ...................................................................................................................... 4000-158
DRIVE CIRCUIT ..................................................................................................................................... 4000-161
Drive System Overview ......................................................................................................................... 4000-161
Drive Circuit Troubleshooting Chart ...................................................................................................... 4000-162
Power Train Control Module (PTCM) .................................................................................................... 4000-166
Power Train Control Module Signals ..................................................................................................... 4000-167
Power Train Control Module Signal Typical Readings .......................................................................... 4000-167
Power Train Control Module Calibration Procedure .............................................................................. 4000-169
Power Train Control Module Clearing Calibration Settings ................................................................... 4000-170
Power Train Control Module Troubleshooting ....................................................................................... 4000-170
Electronic Displacement Controls (EDC) Test ...................................................................................... 4000-171
Motor Control Valve (MCV) Test ........................................................................................................... 4000-171
Shunt Valve Test ................................................................................................................................... 4000-172
Traction Control Switch Test ................................................................................................................. 4000-172
Load Share Coil Test ............................................................................................................................ 4000-172
Park Brake Valve Test .......................................................................................................................... 4000-173
Service Brake Valve Test ...................................................................................................................... 4000-173
Axle/Boom Height Test ......................................................................................................................... 4000-173
Hydrostatic Control Lever Tension Adjustment ..................................................................................... 4000-174
Neutral Safety Switch Adjustment ......................................................................................................... 4000-174
Reverse Switch Adjustment .................................................................................................................. 4000-174
Hydrostatic Control Lever Position Sensor Set-up ................................................................................ 4000-175
Speed Potentiometer Test .................................................................................................................... 4000-177
CHARGING SYSTEM ............................................................................................................................. 4000-178
Safe Methods To Be Used When Repairing Alternator System ............................................................ 4000-178
Alternator Charging System Circuit Operation ...................................................................................... 4000-178
Charging System Circuit Troubleshooting Chart ................................................................................... 4000-179
Charging System Diagnostic Tests ....................................................................................................... 4000-180
STARTING SYSTEM .............................................................................................................................. 4000-182
Starter General Information ................................................................................................................... 4000-182
Neutral Safety Switch ............................................................................................................................ 4000-182
Starting System Circuit Operation ......................................................................................................... 4000-183
Starter Motor Circuit Troubleshooting Chart ......................................................................................... 4000-183
Starting System Diagnostic Tests ......................................................................................................... 4000-184
Park Brake Switch Circuit Test .............................................................................................................. 4000-186
Intermediate Starter Relay Test ............................................................................................................ 4000-187
Starter Motor Test ................................................................................................................................. 4000-187
LIGHTING ............................................................................................................................................... 4000-189
Headlight Mount Removal ..................................................................................................................... 4000-189
Headlight Mount Installation .................................................................................................................. 4000-190
84202158-8
PATRIOT 4420 MASTER TABLE OF CONTENTS
BATTERY SERVICING AND TESTING ............................................................. SECTION 4010 (Book 1 84190697)
SAFETY ...................................................................................................................................................... 4010-3
SPECIFICATIONS ...................................................................................................................................... 4010-4
ACCESS TO BATTERIES .......................................................................................................................... 4010-5
REMOVAL AND INSTALLATION OF BATTERIES .................................................................................... 4010-6
Battery Removal ........................................................................................................................................ 4010-6
Battery Installation ..................................................................................................................................... 4010-6
Remote Battery Terminals ........................................................................................................................ 4010-6
BATTERY MAINTENANCE ........................................................................................................................ 4010-7
Electrolyte Level ........................................................................................................................................ 4010-7
Inspecting And Cleaning A Battery ........................................................................................................... 4010-7
Battery Condition Check ........................................................................................................................... 4010-8
Specific Gravity Check .............................................................................................................................. 4010-9
Capacity (Load) Test ............................................................................................................................... 4010-11
Three Minute Charge Test ...................................................................................................................... 4010-12
Battery Leakage Test .............................................................................................................................. 4010-13
Testing Battery Cells With Cadmium Probes .......................................................................................... 4010-14
Battery Fast Charging ............................................................................................................................. 4010-16
Battery Charging ..................................................................................................................................... 4010-17
Activating Charged Batteries ................................................................................................................... 4010-17
STEERING PUMP .............................................................................................. SECTION 7000 (Book 2 84190698)
SAFETY ...................................................................................................................................................... 7000-3
STEERING HAND PUMP REMOVAL ........................................................................................................ 7000-4
STEERING HAND PUMP INSTALLATION ................................................................................................ 7000-6
STEERING COLUMN, CENTER CONSOLE, PEDALS AND SWITCHES ........ SECTION 7010 (Book 2 84190698)
SAFETY ...................................................................................................................................................... 7010-3
SPECIAL TORQUES .................................................................................................................................. 7010-4
STEERING WHEEL .................................................................................................................................... 7010-5
Steering Wheel Removal .......................................................................................................................... 7010-5
Steering Wheel Installation ....................................................................................................................... 7010-6
SELF CANCELLING POD ASSEMBLY ...................................................................................................... 7010-7
Self Cancelling Pod Assembly Removal ................................................................................................... 7010-7
Self Cancelling Pod Assembly Installation .............................................................................................. 7010-10
CENTER CONSOLE ................................................................................................................................. 7010-14
Center Console Removal ........................................................................................................................ 7010-14
Center Console Installation ..................................................................................................................... 7010-17
TILT STEERING COLUMN RELEASE CABLE ........................................................................................ 7010-20
Tilt Column Release Cable Removal ...................................................................................................... 7010-20
Tilt Column Release Cable Installation ................................................................................................... 7010-22
STEERING COLUMN ............................................................................................................................... 7010-25
Steering Column Removal ...................................................................................................................... 7010-25
Steering Column Installation ................................................................................................................... 7010-27
SERVICE BRAKE PEDAL ASSEMBLY .................................................................................................... 7010-29
Service Brake Pedal Removal ................................................................................................................ 7010-29
Service Brake Pedal Installation ............................................................................................................. 7010-31
HVAC PLENUM ACTUATOR MOTOR AND LOUVER ............................................................................ 7010-33
HVAC Plenum Actuator Motor And Louver Removal .............................................................................. 7010-33
HVAC Plenum Actuator Motor And Louver Installation ........................................................................... 7010-39
84202158-9
PATRIOT 4420 MASTER TABLE OF CONTENTS
HOW TO READ HYDRAULIC SCHEMATICS AND SYMBOLS ........................ SECTION 8000 (Book 2 84190698)
HOW TO READ SYMBOLS IN A HYDRAULIC SCHEMATIC .................................................................... 8000-3
Introduction ............................................................................................................................................... 8000-3
Circuit Diagrams ........................................................................................................................................ 8000-3
Symbol Systems ....................................................................................................................................... 8000-3
Using Schematic Symbols ........................................................................................................................ 8000-4
Pressure Control Symbols ...................................................................................................................... 8000-12
Directional Control Symbols .................................................................................................................... 8000-14
Composite Symbols ................................................................................................................................ 8000-15
Flow Control Symbols ............................................................................................................................. 8000-18
Accessories ............................................................................................................................................. 8000-19
SIMPLE SCHEMATIC ............................................................................................................................... 8000-20
Simple Schematic ................................................................................................................................... 8000-21
COMMON SYMBOLS ............................................................................................................................... 8000-22
Lines and Line Functions ........................................................................................................................ 8000-22
Mechanical Devices ................................................................................................................................ 8000-22
Pumps and Motors .................................................................................................................................. 8000-23
Cylinders ................................................................................................................................................. 8000-24
Valves ..................................................................................................................................................... 8000-25
Valve Actuators ....................................................................................................................................... 8000-26
Accessories ............................................................................................................................................. 8000-27
84202158-10
PATRIOT 4420 MASTER TABLE OF CONTENTS
HYDRAULIC SCHEMATIC ......................................................................................................... POSTER 84202156
HYDRAULIC SYSTEM TROUBLESHOOTING .................................................. SECTION 8010 (Book 2 84190698)
SAFETY ...................................................................................................................................................... 8010-4
SPECIAL TORQUES .................................................................................................................................. 8010-5
SPECIAL TOOLS ........................................................................................................................................ 8010-6
HYDRAULIC SYSTEM SPECIFICATIONS ................................................................................................ 8010-7
Drive Circuit Troubleshooting Chart .......................................................................................................... 8010-8
Product Pump Circuit Troubleshooting Chart .......................................................................................... 8010-12
Cylinder Circuit Troubleshooting Chart ................................................................................................... 8010-13
DRIVE CIRCUIT ....................................................................................................................................... 8010-15
Drive System (Overview) ........................................................................................................................ 8010-15
Hydraulic Component Schematics .......................................................................................................... 8010-16
HYDROSTATIC PUMPS .......................................................................................................................... 8010-17
Series 90 Heavy Duty Pumps ................................................................................................................. 8010-17
Hydrostatic Pump High Pressure Test .................................................................................................... 8010-18
Hydrostatic Pump Charge Pressure Test ................................................................................................ 8010-21
Charge Pressure Chart ........................................................................................................................... 8010-23
Hydrostatic Pump Case Pressure Test ................................................................................................... 8010-24
Electronic Displacement Control ............................................................................................................. 8010-25
Electric Displacement Control (EDC) Adjustment ................................................................................... 8010-29
Motor Control Valve ................................................................................................................................ 8010-32
Multifunction Valves ................................................................................................................................ 8010-33
Hydrostatic Pump Or Wheel Motor Replacement Initial Start-Up Procedure .......................................... 8010-38
WHEEL MOTOR ....................................................................................................................................... 8010-40
Wheel Motor Loop Flushing Test ............................................................................................................ 8010-40
Wheel Motor Case Drain Test ................................................................................................................. 8010-42
Control Start Point Wheel Motor Shifting Test ........................................................................................ 8010-43
NEUTRAL SHUNT VALVE ....................................................................................................................... 8010-45
TRACTION ASSIST .................................................................................................................................. 8010-45
ACTIVE SUSPENSION ............................................................................................................................ 8010-46
PARKING BRAKE SYSTEM ..................................................................................................................... 8010-47
Park Brake Quick Disconnect ................................................................................................................. 8010-47
Park Brake Valve .................................................................................................................................... 8010-47
Parking Brake Fails To Release .............................................................................................................. 8010-48
GEAR PUMP ............................................................................................................................................ 8010-49
Gear Pump Test ...................................................................................................................................... 8010-50
PRODUCT PUMP CONTROL (PWM) VALVE ......................................................................................... 8010-52
Product Pump Control Valve Cartridge Test ........................................................................................... 8010-52
Product Control (PWM) Valve Operational Check .................................................................................. 8010-53
Product Pump Control (PWM) Relief Valve Test .................................................................................... 8010-53
Product Pump Control (PWM) Valve Hydraulic Flow Test ...................................................................... 8010-56
Product Pump Hydraulic Motor Test ....................................................................................................... 8010-59
HYDRAULIC OIL COOLER ...................................................................................................................... 8010-62
PRESSURE COMPENSATED PUMP ...................................................................................................... 8010-63
MANIFOLD ............................................................................................................................................... 8010-64
84202158-11
PATRIOT 4420 MASTER TABLE OF CONTENTS
VALVE BANK (TWO SECTION) ............................................................................................................... 8010-65
Axle Adjust .............................................................................................................................................. 8010-65
Boom Height Adjustment ........................................................................................................................ 8010-66
Valve Bank (Two Section) Testing .......................................................................................................... 8010-67
VALVE BANK (SIX SECTION) ................................................................................................................. 8010-68
Valve Bank (Six Section) Test ................................................................................................................. 8010-68
Valve Bank (Six Section) Relief Valve Test ............................................................................................ 8010-69
Valve Bank (Six Section) Relief Valve Adjustment ................................................................................. 8010-71
Solenoid Function Test ........................................................................................................................... 8010-72
STEERING ORBIT MOTOR ..................................................................................................................... 8010-73
STEERING CYLINDER ............................................................................................................................ 8010-73
Rephasing the Steering ........................................................................................................................... 8010-74
Steering Test for Leaking Seals .............................................................................................................. 8010-74
SERVICE BRAKE ..................................................................................................................................... 8010-76
BOOM CYLINDERS ................................................................................................................................. 8010-77
Inner Boom Fold Cylinder ....................................................................................................................... 8010-77
Outer Boom Fold Cylinder ....................................................................................................................... 8010-77
Boom Level Cylinders ............................................................................................................................. 8010-77
EZ-FOLD BOOM FUNCTION ................................................................................................................... 8010-79
AUTO FOLD PLUS FUNCTION ............................................................................................................... 8010-80
HYDRAULIC TANK, FILTERS AND FLUID ....................................................... SECTION 8020 (Book 2 84190698)
SAFETY ...................................................................................................................................................... 8020-3
HYDRAULIC MAINTENANCE SCHEDULE ............................................................................................... 8020-4
HYDRAULIC FILTERS ............................................................................................................................... 8020-5
Hydraulic Return Filter Removal ............................................................................................................... 8020-5
Hydraulic Return Filter Installation ............................................................................................................ 8020-6
Hydraulic Charge Filter Removal .............................................................................................................. 8020-7
Hydraulic Charge Filter Installation ........................................................................................................... 8020-8
Hydraulic Tank Strainer Servicing ............................................................................................................. 8020-9
HYDRAULIC TANK DRAINING AND FILLING ......................................................................................... 8020-11
Hydraulic Tank Draining .......................................................................................................................... 8020-11
Hydraulic Tank Filling .............................................................................................................................. 8020-12
HYDRAULIC TANK ................................................................................................................................... 8020-13
Hydraulic Tank Removal ......................................................................................................................... 8020-13
Hydraulic Tank Installation ...................................................................................................................... 8020-15
HYDRAULIC OIL COOLER ................................................................................ SECTION 8030 (Book 2 84190698)
SAFETY ...................................................................................................................................................... 8030-3
SPECIAL TORQUES .................................................................................................................................. 8030-4
COOLER FIN CLEANING ........................................................................................................................... 8030-5
HYDRAULIC OIL COOLER ........................................................................................................................ 8030-7
Hydraulic Oil Cooler Removal ................................................................................................................... 8030-7
Hydraulic Oil Cooler Installation ................................................................................................................ 8030-8
You're Reading a Preview
What's Included?
Lifetime Access
Fast Download Speeds
Online & Offline Access
Access PDF Contents & Bookmarks
Full Search Facility
Print one or all pages of your manual
$304.99
Viewed 98 Times Today
Secure transaction
What's Included?
Lifetime Access
Fast Download Speeds
Online & Offline Access
Access PDF Contents & Bookmarks
Full Search Facility
Print one or all pages of your manual
$304.99
The Case IH Patriot 4420 Sprayers Repair Manual is a comprehensive guide designed to assist both professional mechanics and DIY enthusiasts in maintaining and repairing their sprayers. This workshop manual offers detailed instructions for the removal, installation, disassembly, and assembly of various components. It also includes an electrical wiring diagram and hydraulic schematic to facilitate troubleshooting of electrical or hydraulic issues.
Furthermore, the manual contains diagnostic information to efficiently identify and resolve problems. It provides specifications and torque values to ensure proper assembly and prevent potential damage.
Models included in this manual:
- Case IH Patriot 4420 Sprayers
