6120, 6120L, 6220, 6220L, 6320, 6320L, 6420, 6420L and 6520L Tractors

All information, illustrations and specifications in this manual are based on the latest information available at the time of publication. The right is reserved to make changes at any time without notice.

Foreword

Section : 00 - Identification Views

Identification Views

Section : 05 - Safety

Recognize Safety Information
Understand Signal Words
Follow Safety Instructions
Stay Clear of Moving Tractor
Prevent Machine Runaway
Use Seat Belt Properly (If Equipped)
Operating the Tractor Safely
Shift to Low Gear on Hills
Use Caution on Hillsides
Parking and Leaving the Tractor
Keep Riders Off Machine
Instructional Seat
Handle Fuel Safely-Avoid Fires
Prepare for Emergencies
Wear Protective Clothing
Handle Chemical Products Safely
Avoid Contact with Pesticides
Stay Clear of Rotating Drivelines
Use Safety Lights and Devices
Use a Safety Chain
Safely Transporting the Tractor
Tow Loads Safely
Freeing a Mired Machine
Keep ROPS Installed Properly
Practice Safe Maintenance
Remove Paint Before Welding or Heating
Avoid Heating Near Pressurized Fluid Lines
Avoid High-Pressure Fluids
Service Cooling System Safely
Store Attachments Safely
Dispose Of Waste Properly
Special Features on Tractors with JD IVT
JD IVT- Operating on Hillsides in Slippy Conditions

Section : 10 - Safety Decals

Prevent Machine Runaway
Use Seat Belt
Use of Instructional Seat
Operate Tractor Safely
Do Not Modify ROPS
Avoid Explosive Gases
Stay Clear of PTO

Section : 15 - Controls and Instruments

Vehicle Controls
Differences of Vehicle Controls on Tractors Without Cab
PTO and Creeper Controls
Attachment Controls
Heater and Air Conditioning Controls
Operating the Digital Display
Indicator Lights and Displays on Tractors without Cab (Version I)
Indicator Lights and Displays on Tractors without Cab (Version II)
Indicator Lights and Displays on Tractors with Cab
Performance Monitor
Data Entry Mode
Operating Touch Pad Switches
Operation and Calibration
Wheel Slip (3)
Vehicle Speed (6)
Service (8)
Backlight Brightness-Cab Displays
Adjusting Backlight-Performance Monitor

Section : 20 - Lights

Light Switches (Tractors with Cab)
Work Light Switches (Tractors with Cab)
Xenon Worklights
Beacon Light (Option)
Light Switches (Tractors Without Cab)
Work Light Switches (Tractors without Cab)
Lights
Operating the Hazard Warning Light Switch
Switch for Turn Signal Lights and Horn (Tractors with Cab)
Switch for Turn Signal Lights (Tractors without Cab)
Switch for Horn (Tractors without Cab)
Seven-Terminal Outlet

Section : 25 - Operator's Platform and Cab

Roll-Over Protective Structure
Operating Foldable ROPS
Seat Belt
Avoid Contact with Pesticides
Clean Vehicle of Hazardous Pesticides
Comfort Seat
Super Comfort Seat
Air Comfort Seat
Operating the Instructional Seat
Opening Windows
Windshield Wiper and Washer System
Blower and Air Louvers
Heater
Air-Conditioning System
Tips on Using the Air-Conditioning System
Cooling A Drink Can
Field Office (Option)
Dome and Console Lights
Adjusting Steering Wheel
Back-up Alarm (Option)
Step Adjustment
Multiple Power-Outlet Socket Strip (Option)
Cigarette Lighter and Ashtray
Installing the Monitor
Power Outlet Sockets

Section : 30 - Break-In Period

After First 4 and 8 Hours of Operation
Within the First 100 Hours of Operation
After First 100 Hours of Operation

Section : 35 - Prestarting Checks

Prestarting Check

Section : 40 - Operating the Engine

Positions of Main Switch
Starting the Engine
Cold Weather Starting Aids
Electrical Starting Aid
Using Auxiliary Heaters
Engine Warm-Up Period
Engines With Turbocharger
Towing the Tractor
Parking the Tractor (Tractors without IVT)
Parking the Tractor (Tractors with IVT)
Stopping the Engine

Section : 45 - Operating the Tractor

Reduce Fuel Consumption
Select Correct Ground Travel Speed
Travel Speeds, SyncroPlus Transmission (12/4)
Travel Speeds, SyncroPlus Transmission with Power Reverser (16/16)
Shifting SyncroPlus Transmission/Power Reverser
Shift Lever Positions
Travel Speeds, PowrQuad Transmission/PowrQuad Plus Transmission (16/16)
Travel Speeds, PowrQuad Plus and AutoQuad II Transmissions (24/24)
Shifting the PowrQuad Transmission
Shift Lever Positions, PowrQuad Transmission
Shifting the PowrQuad Plus Transmission (Version I)
Shifting the PowrQuad Plus Transmission (Version II)
Shift Lever Positions, PowrQuad Plus Transmission
Shifting the AutoQuad II Transmission (Version I)
Shifting the AutoQuad II Transmission (Version II)
Shift Lever Positions, AutoQuad II Transmission
Special Features on Tractors with JD IVT
JD IVT- Operating on Hillsides in Slippy Conditions
JD IVT -Starting in Cold Weather
JD IVT Operation
JD IVT Transmission Enabling Mode
Towing a Tractor equipped with JD IVT
Engaging Creeper Transmission
Engaging Front Wheel Drive
Tractors With TLS MFWD Axle
Engaging Differential Lock
Hydraulic Foot Brakes

Section : 50 - Rockshaft and Three-Point Hitch

Rockshaft Control
Operation and Function of Headland Management System HMS II (If Equipped)
Rockshaft Remote Control
Height Adjustment
Transporting Mounted Implements
Hitch Dampening
Adjusting Rate of Implement Drop
Depth Adjustment
Load/Depth Adjustment
1 Depth Control
2-4 Mixed Control
5 Load Control
Float Position
Direct Actuation
Telescopic Draft Links
Attaching Three-Point Hitch and Drawn Implements
Leveling the Implement
Center Link Adjustment
Lift Links
Adjusting for Vertical Float
Sway Blocks (If Equipped)

Section : 55 - Power Take-Off

PTO Guard
Operating Instructions
PTO Options
PTO Speeds
Operating Power Take-Offs
Reversing Rear PTO Shafts
Attaching PTO-Driven Equipment

Section : 60 - Ballast

Selecting Ballast
Ballasting Rear Wheels
Measuring Rear Wheel Slip
Installing Weights on Flanged Axle
Installing Weights on Rack-and-Pinion Axle
Filling Tires With Liquid Ballast
Draining the Tires
Installing Front Weights
Using Implement Codes

Section : 65 - Wheel Treads, Tires

Adjustable Front Axle (Tractors Without Front Wheel Drive)
Adjusting Front Wheel Tread
Checking Front Wheel Toe-In
Adjusting Front Wheel Toe-In
Changing Wheels Safely
Front Wheel Tread Adjustment (Tractors With Front Wheel Drive)
Adjusting Front Wheel Tread With Reversible Rims
Adjusting Front Wheel Tread With Adjustable Rims
Limiting Front Wheel Steering Angle
Tighten Front Wheel Attaching Nuts
Check Front Wheel Toe-In
Adjusting Front Wheel Toe-In
Adjusting the Fender
Fender Positions
Rear Wheel Tread Adjustment With Flanged Axle
Positions of Rims and Wheel Disks
Tread Widths
Adjusting Wheel Tread With Rack-and-Pinion Axle
Positions of Rims and Wheel Disks With Rack-and-Pinion Axle
Tread Widths With Standard Rack-and-Pinion Axle
Tire Pressures
Service Tires Safely
Tire Combinations, Tractors With Front Wheel Drive

Section : 70 - Additional Equipment

Selective Control Valves
Adjusting the Kickout Relief Valve Detent - 300 Series SCV
Control Lever for Selective Control Valves
Multi-Function Lever (Mechanical)
Multi-Function Lever (Electrical)
Rate of Cylinder Operation
Couplers
Hose Unions
Maximum Permissible Oil Withdrawal
Oil Withdrawal With Hydraulic Motor
Using Pressure Free Return Circuit
Swinging Drawbar
Lengthwise Adjustment of Drawbar
High Clearance Drawbar
Use a Safety Chain

Section : 75 - Transport

Safely Transporting the Tractor
Towing the Tractor
Manual Park Lock Release (Tractors with JD IVT)
Driving on Public Roads

Section : 80 - Fuel, Lubricants, Hydraulic Oil and Coolant

Diesel Fuel
Handling and Storing Diesel Fuel
Diesel Engine Break-In Oil
Diesel Engine Oil (Engine Serial Number up to 799.999)
Diesel Engine Oil (Engine Serial Number from 800.000)
Oil Filters
Diesel Engine Coolant
Operating in Warm Temperature Climates
Transmission and Hydraulic Oil
Front Wheel Drive Axle Oil
Grease
Mixing of Lubricants
Alternative and Synthetic Lubricants
Lubricant Storage

Section : 85 - Lubrication and Periodic Service

Using High Pressure Washers
Lubrication and Periodic Service
Opening the Hood
Access to Battery
Access to Fuses
Important Instructions Regarding Alternator
Daily or Every 10 Hours
After the First 100 Hours
Every 250 Hours
Every 500 Hours
Every 750 Hours
Once Every Year
Every 1500 Hours Or Every Two Years
Every 2000 Hours
Every 3000 Hours Or Every Three Years
As Required

Section : 90 - Service / Daily Or Every 10 Hours

Checking Engine Crankcase Oil Level
Checking the Fuel Filter
Checking On Lights
Other Service Jobs

Section : 95 - Service / Every 250 Hours

Servicing Fuel Tank
Checking Transmission/Hydraulic System Oil Level
Handling Batteries Safely
Prevent Battery Explosions
Checking Electrolyte Level of Batteries
Lubricating Front Axle and Front Wheels
Lubricating Front Axle and Drive Shaft
Checking Oil Level in MFWD Axle Housing
Checking Oil Level in MFWD Final Drives
Checking Brake Operation
Lubricating Three-Point Hitch
Neutral Start Circuit
Checking Transmission PARK Position
Wheel Retaining Bolts/Nuts

Section : 100 - Service / Every 500 Hours

Changing Engine Oil
Changing Engine Oil Filter Element
Changing the Fuel Filter
Lubricating Rear Axle Bearings
Air Intake Hoses
Checking Engine Ground Connection

Section : 105 - Service / Every 750 Hours

Checking Engine Speeds
Replacing Transmission/Hydraulic System Filter Elements
Replace Front PTO Filter (If Equipped)

Section : 110 - Service / Once Every Year

Checking Seat Belt

Section : 115 - Service / Every 1500 Hours or 2 Years

Changing Oil in Front-Wheel Drive Axle and Final Drives
Changing Oil in MFWD Axle Housing
Changing Oil in MFWD Final Drives
Changing Transmission/Hydraulic Oil (Tractors NOT Equipped with IVT)
Changing Transmission/Hydraulic Oil (Tractors with IVT)
Changing the Oil at the Front PTO (If Equipped)

Section : 120 - Service / Every 3000 Hours or 3 Years

Changing Coolant

Section : 125 - Service / As Required

Air Cleaner
Cleaning Primary Filter Element
Cleaning Dusty Element
Secondary (Safety) Element
Installation
Cleaning Cab Air Filters
Keep Radiator Screen Clean (If Equipped)
Air Conditioning System Not Cooling Correctly
Checking the Fuel Filter
Bleeding the Fuel System (Tractors NOT Equipped with Electronic Injection Pump)
Bleeding the Fuel System (Tractors Equipped with DE10 Injection Pump)
Bleeding the Fuel System (Tractors Equipped with HPCR System)
Lubricate All Lubricating Points
Operator's Seat
Batteries-Checking Specific Gravity
Starting Motor
Replacing the Main Fuses
Replacing Fuse of Electrical Starting Aid (Tractors equipped with mechanical or DE10 Injection Pump)
Replacing Fuses of Electrical Starting Aid (Tractors equipped with IVT Transmission)
Replacing the LTC coolant pump fuse (Tractors equipped with IVT transmission)
Fuse and Relay Box on Tractors with Open Operator's Station
Fuse and Relay Boxes on Tractors with Operator's Cab (w/o IVT Transmission)
Fuse and Relay Boxes on Tractors with Operator's Cab (with IVT Transmission)
Replacing the Drive Belt

Section : 130 - Diagnostic Trouble Codes

What the Diagnostic Trouble Codes Mean
General Operating Instructions and Entering Program Mode
Calling up Addresses and Diagnostic Trouble Codes
Diagnostic Trouble Codes on Basic Control Unit / Hitch Control Unit (BCU)
Diagnostic Trouble Codes on Basic Informator (BIF)
Diagnostic Trouble Codes on Engine Control Unit (ECU)
Diagnostic Trouble Codes on Electronic PowrQuad Controller (EPC)
Diagnostic Trouble Codes on Park Lock Controller (PLC)
Diagnostic Trouble Codes on Performance Monitor (PrF)
Diagnostic Trouble Codes on Control Unit for Suspended Front Axle with TLS (SFA)
Diagnostic Trouble Codes on E-ICV Controller (SIC)
Diagnostic Trouble Codes on Transmission Control Unit (TCU)
Diagnostic Trouble Codes on User Interface Controller (UIC)

Section : 135 - Troubleshooting

Hydraulic System
Engine
Electrical System

Section : 140 - Storage

Storage for Long Period
Removing Tractor from Storage

Section : 145 - Specifications

Engine
Transmission
Hydraulic System
Weights and Loads
Towable Loads
Electrical System
Capacities
Load Capacity of Tires (Front)
Load Capacity of Tires (Rear)
Load Capacity of Tires With Front Loader
Unified Inch Bolt and Cap Screw Torque Values
Metric Bolt and Cap Screw Torque Values
Limited Battery Warranty
Emission Control System Certification Label
U.S. Emission Control Warranty

Section : 150 - Serial Numbers

Type Plates
Product Identification Number
Engine Identification Number
Transmission Serial Number
Serial Number of Front Wheel Drive Axle

Section : 155 - Lubrication and Maintenance Records

250 Hour Service
500 Hour Service
750 Hour Service
1000 Hour Service
1500 Hour Service
3000 Hour Service

Section : 160 - Crime Prevention Tips

Help Prevent Crime
Record Ag Identification Numbers
Keep Proof of Ownership
Park Indoors Out of Sight
When Parking Outdoors
Reduce Vandalism
Report Thefts Immediately

Section : SLIT - John Deere Service Literature Available

Technical Information

Section : IBC - John Deere Service Keeps You On The Job

John Deere Is At Your Service When You Need It