John Deere 4920 (SN. from 000101) Self-Propelled Sprayers Diagnostic Manual (TM2125)

Table of Contents:
   Introduction
      Foreword
   General Information
      Safety
      Specifications
      Operational Checks
   Diagnostics Trouble Codes
   Warning Messages
   Warning Messages
   Assisted Steering System
   Processor
   Tracking
      KeyCard and PC Data Storage Card
      STARFIRE Receiver
      STARFIRE iTC Receiver
      Terrain Compensation Module
      Codes By Number
   Observable Symptoms
      Electrical
      Power Train
      Brake System
      Hydraulic System
      Tread Adjust
      Steering
      Solution System
      Operator Station
      Foamer
      Automatic Air Suspension Leveling
   Engine Diagnosis and Tests
      General Information
      Test Procedures and Adjustments
   Air Intake and Cooling Systems
      General Information
   Electrical Diagnosis and Tests
      Service Equipment and Tools
      Glossary
      SPRAYSTAR Display Operation Guide
      How To Use Diagnostic Information
      Diagnostic Codes and Addresses
      Test Procedures and Adjustments
      Calibration Procedures
      Agitation Diagnostics
      Air Quality Diagnostics
      Auxiliary Power Diagnostics
      Boom Fold Unfold Diagnostics
      Boom Leveling (Manual) Diagnostics
      Boom Leveling (Automatic) Diagnostics
      Boom Raise Lower Diagnostics
      Brake Pressure Sensor Diagnostics
      CAN Bus Diagnostics, Vehicle and Engine
      Caution Lamp Diagnostics
      Charging Diagnostics
      Chassis Controller Diagnostics
      Dome Light Diagnostics
      Drivetrain Status Diagnostics
      Dry Applicator System Diagnostics
      Dry Rate Control Unit Power Diagnostics
      Engine Control Unit-Overall Diagnostics
      Foam Marker (Dual Drop) Diagnostics
      Foam Marker (Single Drop) Diagnostics
      Fuel Level Sensor Diagnostics
      GREENSTAR, AMS Component CAN Network Diagnostics
      GREENSTAR AUTOTRAC Diagnostics
   Messages
   Diagnostics
   Codes-Access Through Display
   Codes
   DOCFIELD DOC Diagnostics
      KeyCard and PC Data Storage Card Diagnostics
      Mobile Processor Diagnostics
      Parallel Tracking
      RTK (Real Time Kinematic) Type Identification
      RTK with STARFIRE iTC Diagnostics - Type A
      RTK with STARFIRE (Original) Diagnostics - Type B
      STARFIRESTARFIRE Receiver Identification
      STARFIRESTARFIRE iTC Diagnostics - Type A
      STARFIRESTARFIRE (Original) Diagnostics - Type B
      STARFIRESTARFIRE (Original) with TCM Diagnostics - Type C
      GREENSTARGREENSTARWARNING Messages
      Ground System Diagnostics
      Horn Diagnostics
      Hydraulic Oil Temperature Sensor Diagnostics
      Hydrostatic Ground Drive Diagnostics
      Ladder Diagnostics
      Lighter Diagnostics
      Lighting Diagnostics
      Load Sense Jam Valve
      Operator Presence Switch Diagnostics
      Park Brake Diagnostics
      Power Diagnostics
      Radio and Clock Diagnostics
      Radar Sensor Diagnostics
      Seat Adjust Diagnostics
      Solution Control Diagnostics
      Solution Pressure Diagnostics
      Solution Pump Diagnostics
      Spray Control Diagnostics
      Spray Rate Diagnostics
      Spray Rate Controller Power Diagnostics
      Start Aid Diagnostics
      Starting System Diagnostics
      Stop Lamp Diagnostics
      Tank Level Switch Diagnostics
      Throttle Diagnostics
      Traction Control Diagnostics
      Tread Adjust Diagnostics
      Wheel Speed Sensor Diagnostics
      Wiper Diagnostics
      Connector Information
   Power Train Diagnosis and Tests
      General Information
      Test Procedures and Adjustments
      Final Drive Diagnostics
      Hydrostatic Drive Diagnostics
      Component Location
   Brake Systems Diagnosis and Tests
      General Information
      Brake System Tests
      Park Brake Diagnostics
      Service Brakes Diagnostics
      Component Location
   Hydraulic System Diagnosis and Tests
      General Information
      Test Procedures and Adjustments
      Basic Hydraulic System Diagnostics
      Boom Fold and Unfold Diagnostics
      Boom Left-Hand Leveling Diagnostics
      Boom Raise and Lower Diagnostics
      Boom Right Hand Leveling Diagnostics
      Dry Application System Diagnostics
      Full Boom Breakaway Diagnostics
      Ladder Diagnostics
      Solution Pump Diagnostics
      Component Location
   Tread Adjust System
      General Information
      Test Procedures and Adjustments
      Tread Adjust Diagnostics
      Component Location
   Steering System Diagnosis and Tests
      General Information
      Steering Test Procedures and Adjustments
      Steering Diagnostics
      Component Location
   Operator Station Diagnosis and Tests
      General Information
      Test Procedures and Adjustments
      Air Conditioning and Heating Diagnostics
      Component Location
   Solution System Diagnosis and Tests
      General Information
      Test Procedures and Adjustments
      Eductor Diagnostics
      Erratic Rate Diagnostics
      Over or Under Application Diagnostics
      Loading Diagnostics
      Rinse Diagnostics
      Solution System Pressure Diagnostics
      Component Location
   Foamer Diagnosis and Tests
      General Information
      Test Procedures and Adjustments
      Foam Marker Diagnostics
   Automatic Air Suspension Leveling System Diagnostics
      Automatic Air Suspension Leveling System Diagnostics
   Service Tools
      Dealer Fabricated Tools
      Service Tools and Kits