Complete Repair Technical Manual 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 repair 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.

tm2229 - 4720 Self-Propelled Sprayer Repair Technical Manual.pdf
tm2229 - 4720 Self-Propelled Sprayer Repair Technical Manual.epub

Total Pages: 1,012 pages
File Format: PDF/EPUB/MOBI/AZW (PC/Mac/Android/Kindle/iPhone/iPad; bookmarked, ToC, Searchable, Printable)
Language: English

MAIN SECTIONS
  Diagnostic Trouble Codes
   Observable Symptoms
      Engine System
      Air Intake and Cooling System
      Electrical Diagnosis and Tests
      Power Train Diagnosis and Tests
      Brake System Diagnosis and Tests
      Hydraulic System Diagnosis and Tests
      Hydraulic Tread Adjust Diagnostics
      Steering Diagnostics
      Operator Station Diagnostics
      Solution System Diagnostics
      Foamer System Diagnostics
      Auto Suspension Leveling System Diagnostics
   Engine System
   Air Intake and Cooling Systems
   Electrical Diagnosis and Tests
      SprayStar Display Operation Guide
      Diagnostic Codes and Addresses
      Agitation Diagnostics
      Air Quality Diagnostics
      Auxiliary Power Diagnostics
      Boom Left Hand Leveling Diagnostics (60 ft)
      Boom Left Hand Leveling Diagnostics (80/90 ft)
      Boom Raise/Lower Diagnostics (60 ft)
      Boom Raise/Lower Diagnostics (80/90 ft)
      Boom Return to Height Diagnostics
      Boom Right Hand Leveling Diagnostics (60 ft)
      Boom Right Hand Leveling Diagnostics (80/90 ft)
      Boom Roll/Bias Diagnostics (80/90 ft)
      Boom Unfold and Fold Diagnostics 18.3 m (60 ft)
      Boom Unfold and Fold Diagnostics (80/90 ft)
      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-Overall Diagnostics
      Engine and Fuel Control Diagnostics
      Engine Oil Pressure Switch Diagnostics
      Engine Coolant Sensor Diagnostics
      Engine Speed Sensor Diagnostics
      Foam Marker (Dual Drop) Diagnostics
      Foam Marker (Single Drop) Diagnostics
      Fuel Level Sensor Diagnostics
      Glow Plug Diagnostics
      Horn Diagnostics
      Hydraulic Oil Temperature Sensor Diagnostics
      Hydrostatic Boost Diagnostics
   Power Train Diagnosis and Tests
   Brake Systems Diagnosis and Tests
   Hydraulic System Diagnosis and Tests
   Suspension and Tread Adjust Diagnosis and Tests
   Steering System Diagnosis and Tests
   Operator Station Diagnosis and Tests
   Solution System Diagnosis and Tests
   Foamer Diagnosis and Tests
   Automatic Air Suspension Leveling System Diagnostics and Tests
   Dealer Fabricated Tools

tm2229 - 4720 Self-Propelled Sprayer Repair

Table of Contents

Foreword

Section 10: General Information

Group 05: Safety

Recognize Safety Information

Understand Signal Words

Perform Service Safely

Wait Before Opening High-Pressure Fuel System

Service Accumulator Systems Safely

Park Machine Safely

Servicing Electronic Control Units

Welding Near Electronic Control Units

Keep Electronic Control Unit Connectors Clean

Handle Fluids Safely—Avoid Fires

Prevent Battery Explosions

Prepare for Emergencies

Protect Against High Pressure Spray

Prevent Acid Burns

Wear Protective Clothing

Handle Chemical Products Safely

Avoid Contact with Agricultural Chemicals

Clean Vehicle of Hazardous Pesticides

Support Machine Properly

Service Machines Safely

Practice Safe Maintenance

Avoid Harmful Asbestos Dust

Work In Ventilated Area

Work in Clean Area

Remove Paint Before Welding or Heating

Avoid Heating Near Pressurized Fluid Lines

Avoid High-Pressure Fluids

Service Tires Safely

Service Cooling System Safely

Illuminate Work Area Safely

Replace Safety Signs

Use Proper Lifting Equipment

Use Proper Tools

Construct Dealer-Made Tools Safely

Decommissioning — Proper Recycling and Disposal of Fluids and Components

Live With Safety

Group 10: General Information

Specifications

Dimensions

Dimensions—All Machines

Identification Numbers

Sealants and Adhesives Cross-Reference Chart

Face Seal Fittings Assembly and Installation—All Pressure Applications

Metric Face Seal Fitting Torque Chart—Standard Pressure Applications

Metric Face Seal Fitting Torque Chart—High Pressure Applications

SAE Face Seal Fitting Torque Chart—Standard Pressure Applications

SAE Face Seal Fitting Torque Chart—High Pressure Applications

Four Bolt Flange Fittings Assembly and Installation—All Pressure Applications

SAE Four Bolt Flange Cap Screw Torque Values—Standard Pressure Applications

SAE Four Bolt Flange Cap Screw Torque Values—High Pressure Applications

External Hexagon Port Plug Torque Chart

Identifying Zinc-Flake Coated Fasteners

Metric Bolt and Screw Torque Values

Unified Inch Bolt and Screw Torque Values

Glossary of Terms

Group 15: Fuels and Lubricants

Diesel Fuel

Testing Diesel Fuel

Handling and Storing Diesel Fuel

Lubricity of Diesel Fuel

Diesel Engine Coolant (engine with wet sleeve cylinder liners)

Testing Diesel Engine Coolant

Supplemental Coolant Additives

Operating in Warm Temperature Climates

Additional Information About Diesel Engine Coolants and John Deere LIQUID COOLANT CONDITIONER

Diesel Engine Break-In Oil — Non-Emissions Certified and Certified Tier 1, Tier 2, Tier 3, Stage I, Stage II, and Stage III

Diesel Engine Oil — Non-Emissions Certified and Certified Tier 1 and Stage I

Extended Diesel Engine Oil Service Intervals — Non-Emissions Certified and Certified Tier 1 and Stage I

Hydrostatic/Hydraulic Drive Oil

Planetary Hub Oil

Grease

Suspension and Steering Grease

Alternative and Synthetic Lubricants

Lubricant Storage

Section 20: Engine

Group 05: Component Removal and Installation

Essential or Recommended Tools

Specifications

Repair Engine—Use CTM104

Clean Vehicle of Hazardous Pesticides

Remove and Install Engine

Remove and Install Exhaust System

Remove and Install Hood

Section 30: Fuel, Air Intake, and Cooling Systems

Group 10: Diesel Fuel System

Specifications

Remove Fuel Tank

Clean and Inspect Fuel Tank

Bleeding Fuel System—6.8 L Engine

Group 15: Engine Cooling System

Essential or Recommended Tools

Specifications

Clean Vehicle of Hazardous Pesticides

Test Radiator and Coolant Tank Cap

Remove and Install Radiator/Aftercooler

Remove Air Conditioning Condenser/Fuel Cooler

Install Air Conditioning Condenser/Fuel Cooler

Replace Hydraulic Oil Cooler

Leak Test Hydraulic Oil Cooler

Inspect Belt Tensioner

Section 40: Electrical

Group 05: Batteries

Prevent Battery Explosions

Battery Safety

Prevent Damage to Electrical Systems

Checking Electrolyte Specific Gravity

Battery Replacement

Charging Batteries

Connecting Battery Cables

Group 10: Connector Repair

Connector Information

Essential or Recommended Tools

Using High-Pressure Washers

Repair Procedure R-A

Repair Procedure R-B

Repair Procedure R-C

Repair Procedure R-D

Repair Procedure R-E

Repair Procedure R-F

Repair Procedure R-G

Repair Procedure R-I

Repair Procedure R-J

Repair Procedure R-K

Repair Procedure R-M

Repair Procedure R-N

Repair Procedure R-AE

Group 15: Charging Circuit

Disconnect Electrical Circuit

Remove and Install Alternator

Group 20: Starting Circuit

Essential or Recommended Tools

Specifications

Repair Starter—Use CTM77

Remove and Install Starter Motor

Replace Starter Circuit Relay

Replace Glow Plug Relay

Group 25: Switches and Relays

Disconnect Electrical Circuit

Replace Side Console Switches

Replace A/C High/Low Pressure Switch

Replace Dome Light Switch

Replace Cab Door Light Switch

Replace Ignition Switch

Replace A/C Deicing Switch and Blower Motor Resistor

Replace Boom Fold/Level Switch

Load Center Fuses

Load Center Relays and Diodes

Replace Remote Solution Pump Switch

Replace Remote Ladder Switch

Ladder Actuator Relay

18.3 M (60 Ft) Boom Relays

24.4 M and 27.4 M (80 and 90 Ft) Boom Relays

Group 30: Monitoring Systems and Sensors

Other Material

Specifications

Disconnect Electrical Circuit

Replace Turn Signal Indicator Bulbs

Replace Steering Column Mini-Pod

Replace Chassis Computer Unit/Spray Rate Control Unit (CCU/SRC)

Replace Hydraulic Oil Temperature Sensor

Replace Boom Height Sensor

Replace Wheel Speed Sensor

Replace Fuel Level Sender

Replace Solution Pressure Sensor

Remove and Install Flowmeter Sensor

Replace Active Terminator

Replace Passive Terminator

Group 35: Accessory Connectors

Replace Three-Pin Accessory Outlets

Replace and Adjust Field Lights

Group 40: Convenience and Accessory Components

Replace Circulation Blower Motor

Remove Air Quality (AQS) Pressurizer Blower Motor

Replace Wiper Motor

Replace Windshield Washer Pump

Replace Seat Air Compressor Motor

Remove Radio and Speakers

Group 45: Retractable Ladder

Service Parts Kits

Remove and Install Ladder Actuator

Disassemble, Inspect and Assemble Ladder Actuator

Section 50: Power Train Repair

Group 05: Remove and Install Hydrostatic Components

Essential or Recommended Tools

Service Equipment and Tools

Other Material

Specifications

Emergency Tow Procedure

Start-Up Procedure After Hydrostatic Repair

Flushing Hydrostatic Drive System

Remove Hydrostatic Drive Pump

Install Hydrostatic Drive Pump

Replace Hydrostatic Drive Pump Isolators

Remove and Install Drive Shaft and Flywheel

Inspect Drive Shaft

Remove and Install Hydrostatic Drive Motor

Remove Planetary Hub

Install Planetary Hub

Remove, Install and Adjust Hydrostatic Control Cable

Group 10: Hydrostatic Drive Repair

Essential or Recommended Tools

Service Equipment and Tools

Other Material

Specifications

Clean Vehicle of Hazardous Pesticides

Remove and Install Hydrostatic Pump Shaft Seal

Replace Hydrostatic Pump Cartridge Valves

Replace Hydrostatic Pump Charge Pressure Relief Valve

Repair Charge Pump

Remove and Install Hydrostatic Pump Control Valve

Remove and Install Control Valve Neutral Start Switch

Adjust Neutral Start Switch

Adjust Control Valve Eccentric Plug

Disassemble Hydrostatic Drive Pump

Inspect and Repair Hydrostatic Drive Pump

Assemble Hydrostatic Drive Pump

Disassemble and Assemble Hydrostatic Drive Motor

Disassemble and Assemble Hydrostatic Drive Motor Port Plate

Group 15: Planetary Hub Repair

Essential or Recommended Tools

Service Equipment and Tools

Other Material

Specifications

Clean Vehicle of Hazardous Pesticides

Disassemble Planetary Hub

Assemble Planetary Hub

Section 60: Steering and Brakes

Group 05: Steering Column

Essential or Recommended Tools

Specifications

Repair Steering Column (Standard and AutoTrac Equipped)

Bleed Steering System

Group 10: Steering Valve

Other Material

Specifications

Remove and Install Steering Valve

Repair Steering Valve

Remove and Install Toe-Control Valves

Group 15: Steering Cylinder

Service Parts Kit

Specifications

Remove and Install Steering Cylinder

Repair Steering Cylinder

Check Front Axle Toe-In

Adjust Front Axle Toe-In

Group 20: Brakes

Other Material

Specifications

Inspect Service Brake System Components

Disassemble, Inspect and Assemble Service Brake Linkage

Remove and Install Service Brake Valve

Remove Service Brake Caliper

Disassemble, Inspect and Assemble Service Brake Caliper

Install Service Brake Caliper

Start-Up Procedure After Brake System Repair

Group 25: AutoTrac Steering System

Specifications

Remove and Install AutoTrac Controller

Remove and Install AutoTrac Steering Control Valve

Repair AutoTrac Steering Control Valve Assembly

Remove and Install AutoTrac Wheel Angle Sensor

Section 61: Suspension and Tread Adjust Repair

Group 05: Suspension

Essential or Recommended Tools

Other Material

Specifications

Clean Vehicle of Hazardous Pesticides

Replace Suspension Bushings and Seals

Adjust Front and Rear Air Spring Assemblies

Remove and Install Air Spring Leveling System Control Valve

Air Spring Leveling System Linkage

Group 10: Tread Adjust Valves

Essential or Recommended Tools

Specifications

Service Parts Kit

Tread Adjust Valve Block

Remove and Install Tread Adjust Valve Block

Replace Vickers Control Valve Coil(s)

Replace Tread Adjust Valve

Remove, Inspect and Install Manifold Check Valve and Pilot Piston

Group 15: Tread Adjust Cylinders

Essential or Recommended Tools

Other Material

Service Parts Kit

Remove and Install Hydraulic Tread Adjust Cylinders

Disassemble Tread Width Adjustment Cylinder (Snap Ring Retention)

Inspect Cylinder Barrel

Tread Width Adjustment Cylinder Components (Snap Ring Retention)

Assemble Tread Width Adjustment Cylinder (Snap Ring Retention)

Group 20: Tread Adjust Shim Pads

Essential or Recommended Tools

Other Material

Replacing Top Tread Adjust Shim Pads

Replacing Bottom Tread Adjust Shim Pads

Section 70: Hydraulic System

Group 05: Hydraulic Pump

Service Parts Kit

Specifications

Clean Vehicle of Hazardous Pesticides

Relieve Hydraulic System Pressure

Remove and Install Hydraulic Pump

Remove and Install Hydraulic Pump

Disassemble and Assemble Hydraulic Pump

Remove and Install Hydraulic Pump Compensator

Repair Hydraulic Pump Compensator

Group 10: Hydraulic Valves

Essential or Recommended Tools

Other Material

Specifications

Service Parts Kit

18.3 m (60 Ft) Boom Valve

24.4 m and 27.4 m (80 and 90 ft) Boom Valve

24.4 m and 27.4 m (80 and 90 ft) Roll Bias Boom Valve (Optional)

Disassemble, Inspect and Assemble 24.4 m and 27.4 m (80 and 90 ft) Roll Bias Boom Valve

Remove and Install Boom Control Valve

Boom Control Valve General Information

Disassemble, Inspect and Assemble Boom Control Valve

Replace Priority Valve

Disassemble, Inspect and Assemble Priority Valve

Replace Load Sense Shuttle Valve

Remove and Install Combination Valve

Repair Combination Valve

Remove and Install Traction Control Valve

Repair Traction Control Valve

Remove and Install Reverse Boost Valve

Group 15: Boom Hydraulic Cylinders

Other Material

Specifications

Service Parts Kit

Remove and Install 18.3 m (60 ft) Boom Lift Cylinders

Remove and Install 24.4 m and 27.4 m (80 and 90 ft) Boom Lift Cylinders

Remove and Install 18.3 m (60 ft) Boom Leveling Cylinders

Remove and Install 24.4 m and 27.4 m (80 and 90 ft) Boom Leveling Cylinder

Remove and Install 18.3 m (60 ft) Boom Folding Cylinders

Remove and Install 24.4 m and 27.4 m (80 and 90 ft) Boom Inner Fold Cylinder

Remove and Install 24.4 m and 27.4 m (80 and 90 ft) Boom Outer Fold Cylinder

Disassemble and Assemble Boom Lift Cylinder

Disassemble and Assemble Outer Folding Cylinder

Disassemble and Assemble Roll Bias Cylinder

Disassemble and Assemble Boom Tilt Cylinder

Disassemble and Assemble Boom Inner Fold Cylinders

Disassemble and Assemble Below Horiz. Tilt Cylinder

Group 20: Hydraulic Oil Cooler

Hydraulic Oil Cooler/Air Conditioning Condenser

Group 25: Hydraulic Reservoir

Specifications

Remove Hydraulic Reservoir

Install Hydraulic Reservoir

Clean Hydraulic Reservoir Strainers

Group 30: Accumulator

Service Equipment and Tools

Specifications

Remove and Install Accumulator

Charge Accumulator

Section 80: Solution Spray System

Group 05: Nozzle Repair

Decontaminate Spray Equipment

Clean Vehicle of Hazardous Pesticides

Cleaning TEEJET TEEJET is a trademark of Spraying System Co. Single Nozzle Bodies and Check Valves

Cleaning TEEJET Triplet Nozzle Bodies

Cleaning SPRAY MASTER Single Nozzle Bodies and Check Valves

Cleaning SPRAY MASTER Triple Nozzle Bodies

Group 10: Solution Tank

Service Equipment and Tools

Other Material

Specifications

Decontaminate Spray Equipment

Flush Solution Tank and Spray System

Remove and Install Solution Tank

Remove and Install Agitation Nozzles

Group 15: Solution Pump

Service Equipment and Tools

Other Material

Specifications

Decontaminate Spray Equipment

Remove Solution Pump and Motor

Solution Pump Exploded View

Repair Solution Pump

Repair Solution Pump Hydraulic Motor

Install Solution Pump and Motor

Group 20: Solution Control Valves

Other Material

Specifications

Decontaminate Spray Equipment

Disassemble and Assemble Fittings

Repair Check Valves and Strainers

Replace Solution Control Valves

Exploded View— Flowmeter Assembly

Remove and Install Flowmeter Assembly

Replace Flowmeter

Remove and Install Flowmeter Sensor

Remove and Install Boom Section Shut-Off Valves

Section 81: 132 L (35 Gal) Foam Marker System

Group 05: 132 L (35 Gal) Foam Marker System Repair

Specifications

Foam Marker System (With Internal 12-Volt Compressor) 132 L (35 Gal)

Repair Foam Marker Tubes

Foam Control Box Relay Identification

Repair Tank

Repair Compressor

Repair Foam Collectors

Repair Foam Marker Quick Fill

Fittings

Disassemble, Inspect and Assemble Foam Mixing Head

Group 10: On Board Air System

Specifications

Remove and Install On Board Air Compressor

Remove and Install On Board Air Dryer

Repair On Board Air Dryer

Section 90: Operator Station

Group 05: Component Removal and Installation

Essential or Recommended Tools

Specifications

Clean Vehicle of Hazardous Pesticides

Remove and Install Cab

Group 10: Controls

Other Material

Specifications

Remove and Install Armrest

Remove and Install Armrest Control Cover

Remove and Install Hydro Lever

Remove and Install Throttle Control

Remove and Install Throttle Sensor

Remove, Install, and Adjust Temperature Control Cable

Group 15: Air Conditioning System

Essential or Recommended Tools

Other Material

Service Parts Kits

Specifications

Hose and Tubing O-Ring Connection Torques

System Information

Diagram - Air Conditioning System

Air Conditioning System Fittings—Reference Chart

Discharge Air Conditioning System

Flush Compressor

Flush Evaporator

Flush Evaporator (Through Expansion Valve)

Flush Condenser

Purge Air Conditioning System

Evacuate Air Conditioning System

Charge Air Conditioning System

Refrigerant Oil Information

Check Refrigerant Oil Charge

Determine Correct Refrigerant Oil Charge

Add Refrigerant Oil to System

Add Oil to Pressurized System

Remove and Install Compressor

Test Volumetric Efficiency

Test Shaft Seal Leakage

Disassemble and Assemble Compressor Clutch

Check Clutch Hub Clearance

Inspect Compressor Manifold

Disassemble, Inspect and Assemble Compressor

Remove and Install Compressor Relief Valve

Remove and Install Expansion Valve

Replace Receiver-Dryer

Leak Test Hydraulic Oil Cooler/Air Conditioning Condenser

Remove Air Quality System Module

Remove and Install Heater Core or Evaporator

Leak Test Air Quality System Module

Install Air Quality System Module

Group 20: Heating System

Remove Heater Control Valve

Leak Test Heater Control Valve

Install Heater Control Valve

Group 25: Air Suspension Seat

Other Material

Remove Seat from Suspension

Operator Seat—Exploded View

Remove Air Seat Suspension System

Operator Seat Air Suspension Assembly—Exploded View

Disassemble and Assemble Operator's Seat Air Suspension Assembly

Group 30: Cab Door and Windshield

Specifications

Remove and Install Cab Door Latch Assembly

Remove and Install Cab Door Latch Jaw Assembly

Remove and Install Cab Door Interior Release Handle

Cab Door Adjustment—Step 1

Cab Door Adjustment—Step 2

Cab Door Adjustment—Step 3

Cab Door Adjustment—Step 4

Cab Door Adjustment—Step 5

Replace Windshield Glass or Seal

Remove and Install Door Cylinder

Section 100: Boom Repair

Group 05: Boom Repair

Essential or Recommended Tools

Specifications

Remove and Install Boom Shock Absorbers and Rubber Stops

Remove and Install Boom Roll Suspension Springs

Remove and Install Boom Rear Anti-Yaw Link

Replace Boom Anti-Yaw Link Washers

Remove and Install Yaw Rocker Cushions

Remove and Install Boom Center Roll Bearing

Section 199: 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

DFNX65-A2 Sizing Arbor

DFNXT1—High Pressure Flange Wrench

DFNXT2—Agitation Nozzle Tool

DFRW151—Radiator Cap Adapter

John Deere Self-Propelled Sprayer 4720 Repair Service Manual (TM2229)