John Deere Self-Propelled Sprayer 4720 Diagnosis and Tests Service Manual (TM2230)
Complete Diagnosis and Tests Manual with Electrical Wiring Diagrams for John Deere Self-Propelled Sprayer 4720, with all the workshop information to maintain, repair, and service like professional mechanics.
John Deere Self-Propelled Sprayer 4720 workshop Diagnostics Test service manual includes:
* Numbered table of contents easy to use so that you can find the information you need fast.
* Detailed sub-steps expand on repair procedure information
* Numbered instructions guide you through every repair procedure step by step.
* Notes, cautions and warnings throughout each chapter pinpoint critical information.
* Bold figure number help you quickly match illustrations with instructions.
* Detailed illustrations, drawings and photos guide you through every procedure.
* Enlarged inset helps you identify and examine parts in detail.
tm2230 - 4720 Self-Propelled Sprayer Diagnosis and Tests Technical Manual.pdf
tm2230 - 4720 Self-Propelled Sprayer Diagnosis and Tests Technical Manual.epub
Total Pages: 2,714 pages
File Format: PDF/EPUB/MOBI/AZW (PC/Mac/Android/Kindle/iPhone/iPad; bookmarked, ToC, Searchable, Printable)
Language: English
MAIN SECTIONS
Foreword
General Information
Safety
General Information
Fuels and Lubricants
Engine
Component Removal and Installation
Fuel, Air Intake, and Cooling Systems
Diesel Fuel System
Engine Cooling System
Electrical
Batteries
Connector Repair
Charging Circuit
Starting Circuit
Switches and Relays
Monitoring Systems and Sensors
Accessory Connectors
Convenience and Accessory Components
Retractable Ladder
Power Train Repair
Remove and Install Hydrostatic Components
Hydrostatic Drive Repair
Planetary Hub Repair
Steering and Brakes
Steering Column
Steering Valve
Steering Cylinder
Brakes
AutoTrac Steering System
Suspension and Tread Adjust Repair
Suspension
Tread Adjust Valves
Tread Adjust Cylinders
Tread Adjust Shim Pads
Hydraulic System
Hydraulic Pump
Hydraulic Valves
Boom Hydraulic Cylinders
Hydraulic Oil Cooler
Hydraulic Reservoir
Accumulator
Solution Spray System
Nozzle Repair
Solution Tank
Solution Pump
Solution Control Valves
132 L (35 Gal) Foam Marker System
132 L (35 Gal) Foam Marker System Repair
On Board Air System
Operator Station
Component Removal and Installation
Controls
Air Conditioning System
Heating System
Air Suspension Seat
Cab Door and Windshield
Boom Repair
Boom Repair
Dealer Fabricated Tools
tm2230 - 4720 Self-Propelled Sprayer Diagnosis and Tests
Table of Contents
Foreword
Section 210: General Information
Group 05: Safety
Recognize Safety Information
Understand Signal Words
Follow Safety Instructions
Use Proper Tools
Replace Safety Signs
Prevent Machine Runaway
Use Seat Belt Properly
Operate Safely
Remove Paint Before Welding or Heating
Avoid Heating Near Pressurized Fluid Lines
Handle Starting Fluid Safely
Beware of Exhaust Fumes
Keep Riders Off Machine
Handle Fuel Safely—Avoid Fires
Prepare for Emergencies
Wear Protective Clothing
Protect Against Noise
Prevent Acid Burns
Handle Agricultural Chemicals Safely
Avoid Contact with Agricultural Chemicals
Clean Vehicle of Hazardous Pesticides
Use Safety Lights and Devices
Transport Safely
Practice Safe Maintenance
Support Machine Properly
Work in Clean Area
Illuminate Work Area Safely
Service Machines Safely
Construct Dealer-Made Tools Safely
Use Proper Lifting Equipment
Service Drive Belts Safely
Avoid High-Pressure Fluids
Do Not Open High-Pressure Fuel System
Prevent Hydraulic System Contamination
Check Hydraulic Hoses
Service Cooling System Safely
Service Accumulator Systems Safely
Service Tires Safely
Decommissioning — Proper Recycling and Disposal of Fluids and Components
Group 10: Machine Specifications
Machine Specification
Dimensions
Dimensions—All Machines
Metric Bolt and Screw Torque Values
Unified Inch Bolt and Screw Torque Values
High Pressure Face Seal Torque Chart
Service Recommendations For Flat Face O-Ring Seal Fittings
Limited Battery Warranty
Keep Proof of Ownership
Keep Machines Secure
Group 15: Operational Checks
Before You Start
Operational Checks
Group 20: Machine Component Location
Identification Numbers
Section 211: Diagnostic Trouble Codes
Group 240: Codes By Number
ECU 002000.09 - ECU Message Error
SRC 000070.02 - Park Brake Switch Fault
SRC 000096.01 - Fuel Level Low
SRC 000096.05 - Fuel Sensor Circuit Open
SRC 000096.06 - Fuel Level Sensor Circuit Closed
SRC 000158.00 - SRC Switched Voltage High
SRC 000158.01 - SRC Switched Supply Voltage Low
SRC 000628.12 - SRC Programming
SRC 000629.12 - SRC Control Unit Fault
SRC 000630.02 - SRC Calibration Fault/Data Invalid
SRC 000630.14 - SRC CAN Message Overflow
SRC 001079.00 - SRC Sensor Supply 1 Voltage Very High
SRC 001079.01 - SRC Sensor Supply 1 Voltage Very Low
SRC 001079.03 - SRC Sensor Supply 1 Voltage High
SRC 001079.04 - SRC Sensor Supply 1 Voltage Low
SRC 001504.02 - Operator Seat Switch Fault
SRC 001592.02 - Left Front Wheel Speed Sensor Frequency Invalid
SRC 002000.09 - ECU Message Missing
SRC 002246.09 - Multifunction Control Handle Message Missing
SRC 522316.03 - Boom Height Sensor Voltage High
SRC 522316.04 - Boom Height Sensor Voltage Low
SRC 522316.13 - Boom Height Sensor Calibration Fault
SRC 523394.02 - Flow Meter Fault
SRC 523440.00 - SRC Unswitched Sensor Voltage High
SRC 423440.01 - SRC Unswitched Voltage Low
SRC 523859.03 - Solution Pressure Sensor Voltage High
SRC 523859.04 - Solution Pressure Sensor Voltage Low
SSU 000162.09 - Transmission Messages Missing
SSU 168.03 - SSU Unswitched Supply Voltage High
SSU 000168.04 - SSU Unswitched Supply Voltage Low
SSU 000517.09 - GPS Speed Message Fault
SSU 000628.02 - SSU EOL Data Fault
SSU 000629.12 - SSU Control Unit Fault
SSU 000630.13 - SSU Calibration Fault/Not Calibrated
SSU 001079.03 - SSU Sensor Supply Voltage High
SSU 001079.04 - SSU Sensor Supply Voltage Low
SSU 001504.07 - Seat Switch Message Fault
SSU 001504.09 - Operator Presence Message Missing
SSU 001504.14 - Operator Not Seated While AutoTrac Active
SSU 001638.09 - Hydraulic Oil Temperature Message Fault
SSU 001807.02 - Steering Wheel Position Sensor 1 Conflict
SSU 001807.03 - Steering Wheel Position Sensor 1 Circuit Voltage High
SSU 001807.04 - Steering Wheel Position Sensor 1 Circuit Voltage Low
SSU 001807.05 - Steering Wheel Position Sensor 1 Circuit Current Low
SSU 001807.06 - Steering Wheel Position Sensor 1 Circuit Current High
SSU 001807.07 - Wheel Angle Sensor Uncommanded Motion Fault
SSU 001807.10 - Steering Wheel Position Sensor 1 Signal Mismatch
SSU 1807.14 - Steering Wheel Position Sensor 1 Signal Fault
SSU 522273.00 - SSU Steering Valve Control Circuit Command High
SSU 522273.01 - SSU Steering Valve Control Circuit Command Low
SSU 522387.07 - AutoTrac Wheel Angle Sensor or Steering Valve Fault
SSU 522394.09 - TCM Message Missing
SSU 523651.02 - Control Unit Fault
SSU 523698.09 - AMS Display Message Missing or GREENSTAR Display Message Missing
SSU 523766.02 - AutoTrac Activation Code Invalid
SSU 523767.09 - Resume Switch Message Missing
SSU 523795.02 - AutoTrac Steering Valve Workport Connection Backwards
SSU 523795.12 - AutoTrac Steering Valve Fault
SSU 523795.13 - SSU Calibration Fault/Steering Valve
SSU 523810.01 - SSU Steering Valve Supply Voltage Low
SSU 523821.02 - Vehicle Mismatch
SSU 523823.00 - SSU Vehicle Speed Too High
SSU 523824.03 - Steering Wheel Position Sensor 2 Circuit Voltage High
SSU 523824.04 - Steering Wheel Position Sensor 2 Circuit Voltage Low
SSU 523824.05 - Steering Wheel Position Sensor 2 Circuit Current Low
SSU 523824.06 - Steering Wheel Position Sensor 2 Circuit Current High
SSU 523824.10 - Steering Wheel Position Sensor 2 Signal Mismatch
SSU 523824.14 - Steering Wheel Position Sensor 2 Signal Fault
SSU 523826.00 - Wheel Angle Sensor Voltage High
SSU 523826.01 - Wheel Angle Sensor Voltage Low
SSU 523826.07 - Wheel Angle Sensor Voltage Connection Backwards
SSU 523826.07 - Wheel Angle Sensor Voltage Range Fault
SSU 523826.14 - Wheel Angle Sensor Low Motion Fault
Section 212: Observable Symptoms
Group 220: Engine System
Engine System Diagnostics
Group 230: Air Intake and Cooling System
Air Intake and Cooling System Diagnostics
Group 240: Electrical Diagnosis and Tests
Diagnostic Code and Address List
Agitation Diagnostics
Air Quality Diagnostics
Auxiliary Power Diagnostics
Boom Left Hand Leveling Diagnostics, 18.3 M, (60 ft) Boom
Boom Left Hand Leveling Diagnostics, 24.4/27.4 M (80/90 ft) Boom
Boom Raise Lower Diagnostics, 18.3 M, (60 ft) Boom
Boom Raise Lower Diagnostics, 24.4/27.4 M (80/90 ft) Boom
Boom Return to Height Diagnostics
Boom Right Hand Leveling Diagnostics, 18.3 M (60 ft) Boom
Boom Right Hand Leveling Diagnostics, 24.4/27.4 M (80/90 ft) Boom
Boom Roll Bias Diagnostics
Boom Fold Unfold Diagnostics 18.3 M (60 ft) Boom
Boom Fold Unfold Diagnostics, 24.4/27.4 M (80/90 ft) Boom
CAN Bus Diagnostics
CAN Multifunction Control Handle Diagnostics
Caution Light Diagnostics
Charging System Diagnostics
Dome and Sentry Light Diagnostics
Engine Air Filter Switch Diagnostics
Engine Control Unit Diagnostics
Engine and Fuel Control Diagnostics
Engine Oil Pressure Switch Diagnostics
Engine Coolant Sensor Diagnostics
Engine Speed Sensor Diagnostics
Foam Marker Diagnostics, Dual Drop
Foam Marker Diagnostics, Single Drop
Fuel Level Sensor Diagnostics
Glow Plug Diagnostics
Greenstar AutoTrac Diagnostics
Greenstar Display Diagnostics
Greenstar Field Doc Diagnostics
GREENSTAR GREENSTAR is a trademark of Deere & Company KeyCard and PC Data Storage Card Diagnostics
Greenstar Mobile Processor Diagnostics
Greenstar Parallel Tracking Diagnostics
Greenstar RTK Type Identification
Greenstar RTK With Starfire ITC Diagnostic A
Greenstar RTK With Starfire Diagnostics
Starfire Type Identification
Starfire ITC Diagnostics Type A
Starfire Diagnostics Type B
Starfire With TCM Diagnostics
Horn Diagnostics
Hydraulic Oil Temperature Sensor Diagnostics
Hydrostatic Boost Diagnostics
Ladder Diagnostics
Lighter Diagnostics
Lighting Diagnostics
Load Sense Jam Valve Diagnostics
Operator Presence Switch Diagnostics
Park Brake Diagnostics
Power Diagnostics
Radar Sensor Diagnostics
Radio and Clock Diagnostics
Seat Adjust Diagnostics
Solution Pressure Diagnostics
Speed Range Diagnostics
Spray Control Diagnostics
Spray Rate Controller Diagnostics
Spray Rate Diagnostics
Starting System Diagnostics
Stop Light Diagnostics
Throttle Diagnostics
Traction Control Diagnostics
Tread Adjust Diagnostics
Wheel Speed Sensor Diagnostics
Wiper Diagnostics
Group 250: Power Train Diagnosis and Tests
Final Drive Diagnostics
Hydrostatic Drive Diagnostics
Hydrostatic Reverse Boost Diagnostics
Traction Control Diagnostics
Group 260: Brake System Diagnosis and Tests
Park Brake Diagnostics
Service Brake Diagnostics
Group 270: Hydraulic System Diagnosis and Tests
Basic Hydraulic System Diagnostics
Boom, Left Hand Leveling Diagnostics
Boom Raise/Lower Diagnostics
Boom, Right Hand Leveling Diagnostics
Boom Roll Bias Diagnostics
Boom Fold/Unfold Diagnostics, 18.3 M (60ft) Boom
Boom Fold/Unfold Diagnostics, 24.4/27.4M (80/90ft) Boom
Power Washer Diagnostics
Solution Pump Diagnostics
Group 275: Hydraulic Tread Adjust Diagnostics
Suspension and Hydraulic Tread Adjust Diagnostics
Group 280: Steering Diagnostics
Steering System Tests and Adjustments
Group 290: Operator Station Diagnostics
Operator Station Diagnostics
Group 300: Solution System Diagnostics
Eductor Diagnostics
Erratic Rate Diagnostics
Solution Loading Diagnostics
Solution System Pressure Diagnostics
Over or Under Application Diagnostics
Group 310: Foamer System Diagnostics
Foamer System Diagnostics
Group 320: Auto Suspension Leveling System Diagnostics
Auto Suspension Leveling System Diagnostics
Section 220: Engine System
Group 05: General Information
General Information
Group 10: Test Procedures and Adjustments
Air in Return Fuel Test
Engine Oil Pressure Test
Turbocharger Boost Test
Bleeding Fuel Systems
Fuel Transfer Pump Pressure Test - 6068 Engine
Group 15: Engine Diagnostics
Theory of Operation
Fuel System Schematic
Engine Diagnostics
Section 230: Air Intake and Cooling Systems
Group 05: General Information
General Information
Group 10: Test Procedures and Adjustments
Testing Aftercooler For Leaks
Turbocharger Boost Test
Test Radiator Cap
Test Cooling System
Inspect Thermostat and Test Opening Temperature
Radiator Inspection
Group 15A: Air Intake System Diagnostics
Theory of Operation
Air Intake Schematic
Air Intake System Diagnostics
Group 15B: Engine Cooling Package Diagnostics
Theory of Operation
Engine Cooling Package Diagnostics
Section 240: Electrical Diagnosis and Tests
Group 5: How to Use Diagnostic Information
How to Use the Electrical Diagnostic Section
Group 05A: SprayStar Display Operation Guide
SPRAYSTAR Display Operation Guide
Group 10A: Diagnostic Codes and Addresses
Codes
Addresses
Group 10B: Component Identification
Component Identification Legend
Group 10C: Component Tests
Boom Shutoff Valve Mechanical Check
Group 15A: Agitation Diagnostics
Theory of Operation
Agitation Schematic
Agitation Diagnostics
Group 15B: Air Quality Diagnostics
Theory of Operation
Air Quality Schematic
Air Quality Diagnostics
Group 15C: Auxiliary Power Diagnostics
Theory of Operation
Auxiliary Power Schematic
Auxiliary Power Diagnostics
Group 15D: Boom Left Hand Leveling Diagnostics (60 ft)
Theory of Operation
Boom Schematic 60 Foot
Left Boom Leveling Diagnostics
Group 15E: Boom Left Hand Leveling Diagnostics (80/90 ft)
Theory of Operation
Boom Left Hand Leveling Schematic (80/90 ft)
Left Boom Leveling Diagnostics (80/90 ft)
Group 15F: Boom Raise/Lower Diagnostics (60 ft)
Theory of Operation
Boom Fold/Raise-Lower Schematic (60 ft)
Boom Raise-Lower Diagnostics (60 ft)
Group 15G: Boom Raise/Lower Diagnostics (80/90 ft)
Theory of Operation
Boom - Raise/Lower Schematic
Boom Raise/Lower Diagnostics (80/90 ft)
Group 15H: Boom Return to Height Diagnostics
Theory of Operation
Schematic
Boom Return to Height Diagnostics
Group 15I: Boom Right Hand Leveling Diagnostics (60 ft)
Theory of Operation
Right Boom Fold Schematic
Boom Right Hand Leveling Diagnostics (60 ft)
Group 15J: Boom Right Hand Leveling Diagnostics (80/90 ft)
Theory of Operation
Right Boom Leveling Schematic
Boom Right Hand Leveling Diagnostics (80/90 ft)
Group 15K: Boom Roll/Bias Diagnostics (80/90 ft)
Theory of Operation
Boom Raise/Lower and Roll Bias Schematic
Boom Roll Bias Diagnostics
Group 15L: Boom Unfold and Fold Diagnostics 18.3 m (60 ft)
Theory of Operation
Boom Fold Schematic
Boom Unfold and Fold Diagnostics (60 ft)
Group 15M: Boom Unfold and Fold Diagnostics (80/90 ft)
Theory of Operation
Boom Fold Schematics
Boom Unfold and Fold Diagnostics (80/90 ft.)
Group 15N: CAN Bus Diagnostics
Theory of Operation
CAN Bus Schematics
Vehicle CAN Bus 1 Diagnostics (S.N. —007000)
Group 15O: CAN Multifunction Control Handle Diagnostics
Theory of Operation
Schematics
CAN Multifunction Control Handle Diagnostics
Group 15P: Caution Light Diagnostics
Theory of Operation
Caution Light Schematic
Caution Light Diagnostics
Group 15Q: Charging System Diagnostics
Theory of Operation
Schematic
Charging System Diagnostics
Group 15R: Dome and Sentry Light Diagnostics
Theory of Operation
Dome and Sentry Lamp Schematic
Dome and Sentry Light Diagnostics
Group 15S: Engine Air Filter Switch Diagnostics
Theory of Operation
Engine Sensor Schematic
Engine Air Filter Switch Diagnostics
Group 15T: Engine Control Unit-Overall Diagnostics
Theory of Operation
Engine Control Unit Schematic
Engine Sensor Schematic
CAN Network Schematic
Engine Control Unit - Overall Diagnostics
Group 15U: Engine and Fuel Control Diagnostics
Theory of Operation
Engine Control Unit Schematic
Engine Sensor Schematic
CAN Network Schematic
Engine and Fuel Control Diagnostics
Group 15V: Engine Oil Pressure Switch Diagnostics
Theory of Operation
Engine Sensor Schematic
Engine Oil Pressure Switch Diagnostics
Group 15W: Engine Coolant Sensor Diagnostics
Theory of Operation
Engine Sensor Schematic
Engine Coolant Sensor Diagnostics
Group 15X: Engine Speed Sensor Diagnostics
Theory of Operation
Engine Sensor Schematic
Engine Speed Sensor Diagnostics
Group 15Y: Foam Marker (Dual Drop) Diagnostics
Theory of Operation
Foam Marker (Dual Drop) Schematics
Foamer System Problem Diagnostics
Group 15Z: Foam Marker (Single Drop) Diagnostics
Theory of Operation
Foam Marker (Single Drop) Schematics
Foamer System Problem Diagnostics
Group 15AA: Fuel Level Sensor Diagnostics
Theory of Operation
Fuel Level Sensor Schematic
Fuel Level Sensor Diagnostics
Group 15AB: Glow Plug Diagnostics
Theory of Operation
Glow Plug Schematic
Engine Control Unit Schematic
Engine Sensor Schematic
Glow Plug Diagnostics
Group 15AC: GREENSTARGREENSTAR is a trademark of Deere & Company AUTOTRACAUTOTRAC is a trademark of Deere & Company Diagnostics
Theory of Operation
Steering System Check and Calibration Procedure
SSU (A16) Diagnostic Trouble Codes
AutoTrac Schematics
AutoTrac Diagnostics
Group 15AD: GREENSTARGREENSTAR is a trademark of Deere & Company Caution Messages
GREENSTAR Caution Messages
Group 15AE: GREENSTARGREENSTAR is a trademark of Deere & Company Display Diagnostics
Theory of Operation
Electrical Schematic
Greenstar Display Diagnostic Trouble Codes
GREENSTAR GREENSTAR is a trademark of Deere & Company Display Diagnostics
Group 15AF: GREENSTARGREENSTAR is a trademark of Deere & Company Fault Codes-Access Through Display
Accessing GREENSTAR Fault Codes
Group 15AG: GREENSTARGREENSTAR is a trademark of Deere & Company Fault Codes
GREENSTAR Fault Codes
Group 15AH: GREENSTARGREENSTAR is a trademark of Deere & Company FIELD DOCFIELD DOC is a trademark of Deere & Company Diagnostics
Theory of Operation
CAN Bus Schematics
FIELD DOC FIELD DOC is a trademark of Deere & Company Diagnostics
Group 15AI: GREENSTARGREENSTAR is a trademark of Deere & Company KeyCard and PC Data Storage Card Diagnostics
Theory of Operation
Electrical Schematic
GREENSTAR GREENSTAR is a trademark of Deere & Company KeyCard and PC Data Storage Card Diagnostics
Group 15AJ: GREENSTARGREENSTAR is a trademark of Deere & Company Mobile Processor Diagnostics
Theory of Operation
Electrical Schematic
GREENSTAR GREENSTAR is a trademark of Deere & Company Mobile Processor Diagnostics
Group 15AK: GREENSTARGREENSTAR is a trademark of Deere & Company Parallel Tracking
Theory of Operation
Electrical Schematic
Parallel Tracking Type A Diagnostics
Group 15AL: RTK (Real Time Kinematic) Type Identification
RTK with STARFIRE STARFIRE is a trademark of Deere & Company iTC Diagnostics - Type A
RTK with STARFIRE STARFIRE is a trademark of Deere & Company (Original) Diagnostics - Type B
Group 15AM: RTK with STARFIRE iTC Diagnostics - Type A
Theory of Operation
Electrical Schematic
RTK with STARFIRE iTC Diagnostics - Type A
Group 15AN: RTK with STARFIRE (Original) Diagnostics - Type B
Theory of Operation
Electrical Schematic
RTK with STARFIRE (Original) Diagnostics - Type B
Group 15AO: STARFIRESTARFIRE is a trademark of Deere & Company Receiver Identification
STARFIRE iTC Diagnostics - Type A
STARFIRE (Original) Diagnostics - Type B
STARFIRE (Original) with TCM Diagnostics - Type C
Group 15AP: STARFIRESTARFIRE is a trademark of Deere & Company iTC Diagnostics - Type A
Theory of Operation
Electrical Schematic
STARFIRE STARFIRE is a trademark of Deere & Company iTC Diagnostics - Type A
Group 15AQ: STARFIRESTARFIRE is a trademark of Deere & Company (Original) Diagnostics - Type B
Theory of Operation
Electrical Schematic
STARFIRE STARFIRE is a trademark of Deere & Company (Original) Diagnostics - Type B
Group 15AR: STARFIRESTARFIRE is a trademark of Deere & Company (Original) with TCM Diagnostics - Type C
Theory of Operation - Type C
Electrical Schematic - Type C
STARFIRE (Original) with TCM Diagnostics - Type C
Group 15AS: GREENSTARGREENSTAR is a trademark of Deere & Company WARNING Messages
GREENSTAR Warning Messages
Group 15AT: Horn Diagnostics
Theory of Operation
Horn Circuit Schematic
Voltage Checks
Group 15AU: Hydraulic Oil Temperature Sensor Diagnostics
Theory of Operation
Sensor Schematic
CAN Network Schematic
Hydraulic Oil Temperature Sensor Diagnostics
Group 15AV: Hydrostatic Boost Diagnostics
Theory of Operation
Schematics
Hydrostatic Boost Diagnostics
Group 15AW: Ladder w/ Remote Control Diagnostics
Theory of Operation
Ladder w/Remote Control Electrical Schematic
Ladder Diagnostics
Group 15AX: Lighter Diagnostics
Theory of Operation
Lighter Circuit Schematic
Voltage Checks
Group 15AY: Lighting Diagnostics
Theory of Operation
Lighting Circuit Operation
V1 - Diode Block
Warning and Turn Signal Lights - 90 Foot Boom Schematic
Warning and Turn Signal Lights - 60 Foot Boom Schematic
Road Lights Schematic
Field 1 and Field 2 Lights Schematic
Group 15AZ: Load Sense Jam Valve Diagnostics
Theory of Operation
Load Sense Jam Valve Schematics
Load Sense Jam Valve Diagnostics
Group 15BA: Operator Presence Switch Diagnostics
Theory of Operation
Schematic
Operator Presence Switch Diagnostics
Group 15BB: Park Brake Diagnostics
Theory of Operation
Park Brake Schematic
Park Brake Diagnostics
Group 15BC: Power Diagnostics
Theory of Operation
V1- Diode Block
Power System Schematic
Group 15BD: Radar Sensor Diagnostics
Theory of Operation
Radar Sensor Schematic
Radar Sensor Diagnostics
Group 15BE: Radio and Clock Diagnostics
Theory of Operation
Radio and Clock Schematic
Voltage Checks
Group 15BF: Seat Adjust Diagnostics
Theory of Operation
Seat Adjust Schematic
Seat Adjust Diagnostics
Group 15BG: Solution Pressure Diagnostics
Theory of Operation
Solution Pressure Schematic
Solution Pressure Electrical Diagnostics
Group 15BH: Solution Pump Diagnostics
Theory of Operation
Solution Pump Schematic
Solution Pump Diagnostics
Group 15BI: Speed Range Diagnostics
Theory of Operation
Speed Range Schematic
Speed Range Diagnostics
Group 15BJ: Spray Control Diagnostics
Theory of Operation
Spray Control Schematic for 80/90 Foot Boom
Spray Control Schematic for 60 Foot Boom
Spray Control System Diagnostics
Group 15BK: Spray Rate Controller Diagnostics
Theory of Operation
Spray Rate Controller Schematic
Spray Rate Controller Diagnostics
Group 15BL: Spray Rate Diagnostics
Theory of Operation
Spray Rate Schematic
Spray Rate Diagnostics
Group 15BM: Starting System Diagnostics
Starting System Theory of Operation
Starting System Schematic
Starting System Diagnostics
Group 15BN: Stop Light Diagnostics
Theory of Operation
Stop Light Schematic
Stop Light Diagnostics
Group 15BO: Throttle Diagnostics
Theory of Operation
Throttle Schematic
Throttle Diagnostics
Group 15BP: Traction Control Diagnostics
Theory of Operation
Traction Control Schematic
Traction Control Diagnostics
Group 15BQ: Tread Adjust Diagnostics
Theory of Operation
Tread Adjust Schematic
Tread Adjust Diagnostics
Group 15BR: Wheel Speed Sensor Diagnostics
Theory of Operation
Wheel Speed Sensor Schematic
Wheel Speed Sensor Diagnostics
Group 15BS: Wiper Diagnostics
Theory of Operation
Wiper Schematic
Voltage Checks
Group 20: Connector Information (end views, numbers, location photos)
Connector Number Designations
X100 - X199 Connectors
X200 - X299 Connectors
X400 - X499 Connectors
X500 - X599 Connectors
X600 - X699 Connectors
X700 - X799 Connectors
Section 250: Power Train Diagnosis and Tests
Group 05: General Information
General Information
Group 10: Test Procedures and Adjustments
Adjust Hydrostatic Pump Linkage
Adjust Charge Pressure Relief Valve
Adjust Charge Pressure Relief Valve on Front Pump
Adjust Charge Pressure Relief Valve on Rear Pump
Adjust Hydrostatic Forward High Pressure
Adjust Reverse High Pressure (Dual Stage Multi-function Valves)
Hydrostatic Pump Synchronization Procedure
Test - Hydrostatic Charge Pressure
Test - Neutral Charge Pressure
Test - Forward and Reverse Charge Pressure
Test - Independent Forward and Reverse Charge Pressure
Test - Hydrostatic Pump Limiter Pressure
Test - Pressure Difference Between Hydrostatic Pumps
Test - Reverse Boost Engage Pressure
Test - Case Drain Flow of Motors For Front Hydrostatic Pump
Test - Case Drain Flow of Motors For Rear Hydrostatic Pump
Test Results Worksheet
Group 15A: Final Drive Diagnostics
Theory of Operation
Final Drive Schematic
Final Drive Diagnostics
Group 15B: Hydrostatic Drive Diagnostics
Theory of Operation
Hydrostatic Drive Schematic
Hydrostatic Drive Diagnostics
Group 15C: Hydrostatic Reverse Boost Diagnostics
Theory of Operation
Hydrostatic Reverse Boost Hydraulic Schematic
Reverse Boost Hydraulic Diagnostics
Group 15D: Traction Control Diagnostics
Theory of Operation, Traction Control
Schematic, Traction Control Hydraulics
Traction Control Diagnostics
Section 260: Brake Systems Diagnosis and Tests
Group 05: General Information
General Information
Group 10: Test Procedures and Adjustments
Service Brake Pressure Test
Bleeding Service Brakes
Park Brake Release Pressure Test
Park Brake Wheel Hub Release Test
Group 15A: Park Brake Diagnostics
Theory of Operation
Park Brake Schematic
Park Brake Diagnostics
Group 15B: Service Brakes Diagnostics
Theory of Operation
Service Brake Schematic
Service Brake Diagnostics
Section 270: Hydraulic System Diagnosis and Tests
Group 05: General Information
General Information
Hydraulic System Component Glossary
Hydraulic Operational Checks
Group 10: Test Procedures and Adjustments
Test and Adjust Standby Pressure
Test and Adjust Compensator Pressure
Steering Valve Load Sense Relief Test
Test Proportional Valve and Solution Pump Hydraulic Flow Rate
Test Hydraulic Load Sense System
Group 15A: Basic Hydraulic System Diagnostics
Theory of Operation
Combination Valve Port Locations
Hydraulic System Schematic—18.3 M (60 Ft) Boom
Hydraulic System - Boom Schematic
Hydraulic System Basic Diagnostics
Group 15B: Boom - Left-Hand Leveling Diagnostics
Theory of Operation
Hydraulic System Schematic—18.3 M (60 Ft) Boom
Hydraulic System Schematic—24.4 M and 27.4 M (80 and 90 ft) Boom
Boom - Left-Hand Leveling Diagnostics
Group 15C: Boom Raise and Lower Diagnostics
Theory of Operation
Hydraulic System Schematic—18.3 M (60 Ft) Boom
Hydraulic System - Boom Schematic
Boom Raise and Lower Diagnostics
Group 15D: Boom - Right-Hand Leveling Diagnostics
Theory of Operation
Hydraulic System Schematic—18.3 M (60 Ft) Boom
Hydraulic System - Boom Schematic
Boom - Right-Hand Leveling Diagnostics
Group 15E: Boom Roll Bias Diagnostics
Theory of Operation
Hydraulic System - Boom Schematic
Roll Bias Diagnostics
Group 15F: Boom Unfold/Fold Diagnostics - 18.3 M (60 ft) Boom
Theory of Opeation
Hydraulic System Schematic—18.3 M (60 Ft) Boom
Boom Unfold and Fold Diagnostics
Group 15G: Boom Unfold/Fold Diagnostics — 24.4/27.4 M (80/90 ft) Boom
Theory of Operation
Hydraulic System - Boom Schematic
Boom Unfold/Fold Diagnostics
Group 15H: Power Washer Diagnostics
Theory of Operation
Hydraulic Schematic
Power Washer Diagnostics
Group 15I: Solution Pump Diagnostics
Theory of Operation
Hydraulic System Schematic—18.3 M (60 Ft) Boom
Hydraulic System - Boom Schematic
Solution Pump Hydraulic Diagnostics
Group 20: Component Location
Component Identification
Section 275: Suspension and Tread Adjust Diagnosis and Tests
Group 05: General Information
General Information
Tread Adjust Operation Checks
Group 10: Test Procedures and Adjustments
Test and Adjust Compensator Pressure
Tread Adjust Cylinder Leakage Test
Tread Adjust Shim Gap Tests and Adjustments
Suspension Scissors Assembly Adjustment Procedure
Group 15: Tread Adjust Diagnostics
Theory of Operation
Tread Adjust Hydraulic Schematic
Tread Adjust Diagnostics
Group 20: Component Location
Tread Adjust Component Location
Section 280: Steering System Diagnosis and Tests
Group 05: General Information
General Information
Group 10: Test Procedures and Adjustments
Steering Valve Load Sense Relief Test
Toe Control Valve Relief Test
Steering Cylinder Leak Test
Group 15: Steering Diagnostics
Theory of Operation
Steering System Hydraulic Schematics
Steering System Diagnostics
Group 20: Component Location
Component Location
Section 290: Operator Station Diagnosis and Tests
Group 05: General Information
General Information
Group 10: Test Procedures and Adjustments
Air Conditioner Service Ports
System Operating Pressure Test
Pressure and Leak Testing The Air Conditioning System
Group 15: Air Conditioning and Heating Diagnostics
Theory of Operation
Air Conditioning Schematic
Air Conditioning Diagnostics
Group 20: Component Location
Air Conditioning System Components
Section 300: Solution System Diagnosis and Tests
Group 05: General Information
General Information
Group 10: Test Procedures and Adjustments
Chemicals, avoid contact
Solution System Checks
Checking Dead Head Pressure
Check Flowmeter Calibration
Solution Pressure Transducer Electrical Test
Boom Shutoff Valve Mechanical Check
Group 15A: Eductor Diagnostics
Solution System Theory of Operation
Solution System Schematic
Solution System Eductor Diagnostics
Group 15B: Erratic Rate Diagnostics
Solution System Theory of Operation
Solution System Schematic
Solution System Erratic Rate Diagnostics
Group 15C: Loading Diagnostics
Solution System Theory of Operation
Solution System Schematic
Solution System Loading Diagnostics
Group 15D: Solution Pressure Diagnostics
Solution System Theory of Operation
Solution System Schematic
Solution System Pressure Diagnostics
Group 15E: Over or Under Application Diagnostics
Solution System Theory of Operation
Solution System Schematic
Solution System Over or Under Application Diagnostics
Group 20: Component Location
Solution System Component Location
Section 310: Foamer Diagnosis and Tests
Group 05: General Information
General Information
Group 10: Test Procedures and Adjustments
Test Procedures and Adjustments
Group 15: Foam Marker Diagnostics
Theory of Operation
Foam Marker Schematics
Foamer Diagnostic Procedure (12 Volt Air Supply)
Foamer Diagnostic Procedure (On Board Air Supply)
Group 20: Component Location
Foamer Component Location
Section 320: Automatic Air Suspension Leveling System Diagnostics and Tests
Group 15: Automatic Air Suspension Leveling System Diagnostics
Theory of Operation
Schematic
Diagnostics
Section 399: Dealer Fabricated Tools
Group 05: Dealer Fabricated Tools
DFN20 Solution Pump Seal Driver
DFN21 Pump Support Fixture
DFN22 Bearing Seat Driver
DFN23 Hydrostatic Motor Seal Driver
DFNX65-A1 Eccentric Plug Adjustment Tool
DFRW130—Relay Circuit Test Lead
John Deere Self-Propelled Sprayer 4720 Diagnosis and Tests Service Manual (TM2230)