John Deere 7220 7320 7420 7420 Hi-Crop 7520 Tractor Workshop Repair Service Manual TM2070 PDF - MJODTM2070.zip
Full Service Repair Technical Manual for the John Deere 7220, 7320, 7420, 7420 Hi-Crop, and 7520 2-Wheel Drive Tractor, containing every piece of shop data needed to maintain, fix, and overhaul these machines the way trained technicians do.
John Deere 2WD or MFWD – PIN prefix P0 Tractors 7220, 7320, 7420, 7420 Hi-Crop; 7520 Two-Wheel Drive workshop technical manual (repair) covers:
* 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.
tm2070 - 7220, 7320, 7420, 7520 Tractors Repair Technical Manual.pdf
tm2070 - 7220, 7320, 7420, 7520 Tractors Repair Technical Manual.epub
PRODUCT DETAILS:
Total Pages: 2,852 pages
File Format: PDF/EPUB/MOBI/AZW (PC/Mac/Android/Kindle/iPhone/iPad; bookmarked, ToC, Searchable, Printable)
Language: English
MAIN SECTIONS
Foreword
Safety Information
Safety
General Information
Operational Checkout
General Reference Information
Test Equipment Calibration
Diagnostic Trouble Codes
CCU Code Diagnostics
HCU Code Diagnostics
LHP Code Diagnostics
RCU Code Diagnostics
Observable Symptoms
Brakes
Operator Station
Hydraulics
Engine
General Information
Fuel, Air Intake and Engine Cooling Systems
Fuel/Air/Cooling System Theory of Operation
Electrical System
Diagnostic Codes and Addresses
Electrical System Information
System Diagrams
System Diagram References
System Functional Schematic (CAB)
System Functional Schematic (OOS)
Wiring Harnesses
Sub-System Diagnostics
Starting, Power and Charging Circuit Diagnostics
Wiper and Seat Circuit Diagnosis
Ground Fault Circuit Interrupter Diagnosis
Air Quality System (AQS) Diagnosis
Radio, Horn, Dome Lamp and Multi-Function Control Circuit
Lighting Circuit Diagnosis
Accessory Connector and Lighter Circuit Diagnosis
Hitch Control Diagnosis
CCU Diagnosis
Differential Lock Circuit
MFWD Circuit
Rear PTO Circuit
Wheel and Radar Speed Circuit
Engine Speed Sensor Circuit
Fuel Level Sender Circuit
System Voltage Circuit
Engine Coolant Temperature Sensor
Hydraulic Oil Temperature Circuit
Engine Oil Pressure Sensor Circuit
Transmission Oil Pressure Circuit
Air Filter Restriction Sensor Circuit
Transmission Oil Filter Restriction Sensor Circuit
Hydraulic Oil Filter Restriction Sensor Circuit
Sensor Excitation Power Circuit
Engine Hours and Engine Starts
Fuel Timing Advance Circuit
Display Modules
PowrQuad Control Circuit
ROW-TRAK Control Circuit
CCD Communication
Calibration
CCU Calibration
Performance Monitor Calibration and Diagnostic Tool
Battery References
Transmissions
Operational Checks
Transmission And Reverser Diagnosis
PowrQuad PowrQuad is a trademark of Deere & Company.
Diagnosis
Reverser Control Unit (RCU)
SyncroPlus SyncroPlus is a trademark of Deere & Company.
Diagnosis
Theory Of Operation
PowrQuad PowrQuad is a trademark of Deere & Company.
Theory of Operation
Reverser Control Unit (RCU) Theory of Operation
SyncroPlus SyncroPlus is a trademark of Deere & Company.
Theory of Operation
Drive Systems
Operational Checks
Drive System Diagnosis
Adjustments
Theory of Operation
Steering and Brakes
Steering and Brakes Theory of Operation
Hydraulic System
Operational Checks
Hydraulic System Diagnosis
Tools and Safety
Diagnostic Guidelines
Preliminary Checks
Hydraulic Diagnosis
Additional Troubleshooting Information
Hitch Electrical Diagnosis
HCU Additional Tests
ROW-TRAKROW-TRAK is a trademark of Deere & Company
Tests
Calibrations and Adjustments
Hitch Calibrations and Adjustments
ROW-TRAK™ Calibrations and Adjustments
Theory of Operation
Hydraulic System Diagrams
Hydraulic Control Circuit
Steering Circuit
Selective Control Valves (SCV)
Hitch
Electro-Hydraulic Depth Control
Headland Management Systems (HMS)
Hitch Dampening
Operator Station
Operational Checks
Air Conditioning System Diagnosis
Air Conditioning Theory of Operation
Dealer Fabricated Tools
Dealer Fabricated Tools
tm2070 - 7220, 7320, 7420, 7520 Tractors Repair
Table of Contents
Foreword
Notice To The Dealer
Dealer Predelivery Information Form
Section 05: Safety
Group 05: Safety Information
Recognize Safety Information
”Important” Information
”Note” Information
Prevent Machine Runaway
Handle Fluids Safely—Avoid Fires
Prevent Battery Explosions
Prepare for Emergencies
Prevent Acid Burns
Avoid High-Pressure Fluids
Service Cooling System Safely
Remove Paint Before Welding or Heating
Avoid Heating Near Pressurized Fluid Lines
Work In Ventilated Area
Wear Protective Clothing
Practice Safe Maintenance
Park Machine Safely
Use Proper Lifting Equipment
Construct Dealer-Made Tools Safely
Support Machine Properly
Work in Clean Area
Illuminate Work Area Safely
Service Machines Safely
Use Proper Tools
Service Tires Safely
Service Front-Wheel Drive Tractor Safely
Safety Information - Air Brake System
Avoid Eye Contact With Radar
Keep ROPS Installed Properly
Replace Safety Signs
Dispose of Waste Properly
Live With Safety
Safety Measures on Electronic Control Units
Section 10: General information
Group 05: Specifications
Specifications
Cooling Circuit
Injection Pump (Delphi DP201)
Injection pump (Bosch VP44)
Injection Pump (Stanadyne DE10)
Air Intake System
Electrical System
Hydrostatic Steering System
Clutch
AutoPowr/IVT Transmission
PowrQuad Plus Transmission
Creeper transmission
Rear PTO
Front PTO
Differential assembly
Differential lock
Final drives
Front-Wheel Drive
FWD Axle with TLS
Hydraulic Brakes
Parking Lock
Hydraulic System With Axial Piston Pump
Rockshaft
Front Hitch
Ground Speeds
Front and Rear Wheels
Dimensions and Weights
Handling and Storing Diesel Fuel
Diesel Fuel
Lubricity of Diesel Fuel
Diesel Engine Break-In Oil
Diesel Engine Oil
Transmission and Hydraulic Oil
Front-Wheel Drive Axle Oil
Diesel Engine Coolant
Supplemental Coolant Additives
Grease
Oil Filters
Mixing of Lubricants
Lubricant Storage
Operating in Warm Temperature Climates
Alternative and Synthetic Lubricants
Unified Inch Bolt and Screw Torque Values
Metric Bolt and Screw Torque Values
Hydraulic system inch fitting torques
Hydraulic system metric fitting torques
Product identification and component serial numbers
Engine serial number
Transmission serial number
Front wheel drive axle serial number
Operator's cab serial number
Sub-assembly serial numbers
Group 10: Tune-Up
Repair Specifications
Using High-Pressure Washers
Preliminary Engine Test
Removing and Cleaning the Primary Air Cleaner Element
Checking the Air Cleaner Safety Element
Installing the Primary Filter Element
Check Air Intake System Connections For Leaks
Checking the Crankcase Vent Hose for Clogging
Cleaning the Radiator Grille Screen
Keeping the Radiator Screen Clean
Checking the Caps on the Expansion Tank
Checking the Radiator for Leaks
Checking the engine's thermostat
Replace Fuel Filter, Fuel Pump, and Bleed Fuel System
Check Fuel Transfer Pump Operation
Bleeding the fuel system (with Bosch VP44 injection pump)
Checking the fuel filter (with Bosch VP44 injection pump)
Cleaning the water trap
Checking the Fuel Filter (with Denso/Stanadyne Injection Pump)
Bleeding the Fuel System (with Stanadyne Injection Pump)
Bleeding the Fuel System (with Denso Injection Pump)
Run the Engine until it is Warm, and Check Engine Speeds
Cleaning the Battery, Cables and Battery Box with a Clean Cloth
Check Neutral Start Circuit
Checking operation of starter motor
Checking the lighting circuit
Final Engine Check
Tractor Operation Check
Group 15: Inspection Before Delivery
Predelivery Inspection
Section 20: Engine
Group 00: Installing And Removing Components
Special Tools
Repair Specifications
Remove Engine
Install Engine
Section 30: Fuel, Air Intake, Heating, Exhaust System
Group 05: Speed Control
General Information
Specifications
Adjust Hand Throttle Lever And Accelerator Pedal
Adjust Speed Control Linkage
Hand Throttle Lever—Exploded View
Accelerator Pedal, with Mechanical Speed Control
Accelerator Pedal, With Electronic Speed Control (Cruise Control)
Adjust Accelerator Pedal
Changing the Accelerator Pedal's Potentiometer
Replacing the Accelerator Pedal Assembly (AutoPowr/IVT)
Removing the Accelerator Pedal's Potentiometer
Removing the Hand Throttle's Potentiometer
Group 10: Fuel System
General Information
Remove Fuel Tank
Installing the Fuel Tank
Replace Fuel Gauge Sender
Replace Fuel Transfer Pump
Installing Check Valve in Fuel System
Replace Fuel Filter, Fuel Pump, and Bleed Fuel System
Group 15: Air Intake System
General Information
Air filter - Exploded view
Replacing Sending Unit For Air Cleaner Restriction (B02)
Group 20: Heating System
General Information
Specifications
Remove the Radiator
Change Fan Or Viscous Fan Drive
Removing and Installing the Expansion Tank
Remove And install Thermostat Valve
Install Radiator
Filling the Cooling System with Coolant
Relieving Tension on the Drive Belt
Replace Drive Belt
Replacing the Drive Belt Tensioner
Repairing the Fan Console
Group 25: Cold-Weather Starting Aid