6520 and 6620 SE Tractors
Copyright 2004 (c) Deere & Company. THIS DATA IS THE PROPERTY OF DEERE & COMPANY. ALL USE AND/OR REPRODUCTION NOT SPECIFICALLY AUTHORIZED BY DEERE & COMPANY IS PROHIBITED.
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 View
Identification Views
Section : 05 - Safety
Recognize Safety Information
Understand Signal Words
Follow Safety Instructions
Prevent Machine Runaway
Use Seat Belt Properly (If Equipped)
Work In Ventilated Area
Driving the Tractor Safely
Operating the Tractor Safely
Keep Riders Off Machine
Parking and Leaving the Tractor
Handle Fuel Safely-Avoid Fires
Prepare for Emergencies
Wear Protective Clothing
Avoid Contact with Pesticides
Stay Clear of Rotating Drivelines
Use Safety Lights and Devices
Safely Transporting the Tractor
Towing Trailers/Implements Safely (Mass)
Freeing a Mired Machine
Practice Safe Maintenance
Remove Paint Before Welding or Heating
Avoid Heating Near Pressurized Fluid Lines
Service Accumulator Systems Safely
Avoid High-Pressure Fluids
Store Attachments Safely
Service Cooling System Safely
Retighten Wheel Nuts
Prevent Acid Burns
Support Machine Properly
Service Front-Wheel Drive Tractor Safely
Service Tires Safely
Dispose of Waste Properly
Section : 10 - Safety Decals
Pictorial Safety Signs
Operator's Manual
Riders
Rockshaft Remote Control
Compressed Air Tank for Trailer Brake
Pick-Up Hitch
Keep Wheel Retaining Bolts Tight
Section : 15 - Controls and Instruments
Vehicle Controls
PTO and Creeper Controls
Attachment Controls
Heater, Air-Conditioning and Windshield Wiper Controls
Indicator Lights (Older Version)
Additional Indicator Light
Front PTO Indicator Light
Fuel Gauge
Coolant Temperature Gauge
Hour Meter
Indicator Lights and Displays (Newer Version)
Section : 20 - Lights
Lights
Light Switch
Operating the Hazard Warning Light Switch
Switch for Turn Signal Lights and Horn
Worklight Switches
Seven-Terminal Trailer Socket
Section : 25 - Open Operator's Station and Cab
Roll-Over Protective Structure
Seat Belt
Avoid Contact with Pesticides
Clean Vehicle of Hazardous Pesticides
Super Comfort Seat I
Super Comfort Seat II
Air Comfort Seat
Opening Windows
Windshield Wiper and Washer System
Blower and Air Louvers
Heater
Air Conditioning System
Dome Light
Adjusting the Steering Wheel
Beacon Light
Step Adjustment
Installing the Monitor
Handbrake
Service ADVISOR™ Socket
Roof Hatch
Section : 30 - Break-In Period
After the 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 Checks
Section : 40 - Operating the Engine
Starting the Engine With a Slave Battery
Starting the Engine
Cold-Weather Starting Aids
Electrical Starting Aid
Coolant Heater
Starting with a Booster Battery
Fuel Preheater
Engine Warm-Up Period
Engines with Turbocharger
Towing the Tractor
Parking the Tractor
Battery Cut-Off Switch (If Equipped)
Stopping the Engine
Chock Block
Section : 45 - Operating the Tractor
Reduce Fuel Consumption
Choosing Correct Ground Speed
New Tire Designations
Travel Speeds, SyncroPlus Transmission (12/4)
Travel Speeds, Power Reverser Transmission (16/16)
Travel Speeds, Power Reverser Transmission (16/16)
Shifting SYNCROPLUS™ Transmission / Power Reverser Transmission
Shift Lever Positions
Travel Speeds, PowrQuad Transmission (16/16)
Travel Speeds, PowrQuad Transmission (16/16)
Travel Speeds, PowrQuad Transmission (24/24)
Shifting the PowrQuad Transmission
Shift Lever Positions, PowrQuad Transmission
Engaging Creeper Transmission
Engaging Front-Wheel Drive
Engaging the Differential Lock
Hydraulic Foot Brakes
Section : 50 - Rockshaft and Three-Point Hitch
Rockshaft Control
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
Three-Point Hitch
Flat Steel Draft Links
Telescopic Draft Links
Quick-Coupling (Hook-Type) Draft Links
Attaching Three-Point Hitch Mounted And Drawn Implements
Leveling the Implement
Center Link
Quick-Coupling (Hook-Type) Center Link
Center Link Positions
Lift Links
Adjusting for Vertical Float
Sway Blocks (If Equipped)
Stabilizer Chain (If Equipped)
Stabilizer Bar
Stabilizing System (If Equipped)
Adjusting Spreading Dimension
Section : 55 - Power Take-Off
PTO Guard
Operating Instructions
PTO Options
PTO Speeds
Front PTO
Operating Power Take-Offs
Reversing Rear PTO Shafts
Selecting Speed of Shiftable Rear PTO
Attaching PTO-Driven Equipment
Section : 60 - Ballast
Selecting Ballast
Ballasting Rear Wheels
Measuring Rear Wheel Slip
Installing Weights on Flanged Axle
Filling Tires with Liquid Ballast
Draining the Tires
Installing Front Weights
Section : 65 - Wheel Tread, 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
New Tire Designations
Tread Widths
Tighten Front Wheel Nuts
Check Front Wheel Toe-In
Adjusting Front Wheel Toe-In
Adjusting the Fixed Fenders
Adjusting the Pivoting Fenders
Rear Wheel Tread Adjustment With Flanged Axle
Position of Rims and Wheel Disks
Tread Widths
Tire Pressures
Service Tires Safely
Tire Combinations
Section : 70 - Additional Equipment
Selective Control Valves
Multi-Function Lever
Rate of Cylinder Operation
Couplers
Hose Unions
Maximum Permissible Oil Withdrawal
Oil Withdrawal with Hydraulic Motor
Remote Hydraulic Cylinder
Bleeding the Cylinder
Adjustable Drawbar
Lengthwise Adjustment of Drawbar
Tool Bar for 3-Point Hitch
Front Jaw Hitch
Swinging Trailer Hitch
Tow Hitch (Piton Fix/Ball-Type)
Height-Adjustable Trailer Hitch
Remote Control (If Equipped)
Pick-Up Hitch
Lockable Tank Filler Cap
Section : 75 - Transport
Safely Transporting the Tractor
Towing the Tractor
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
Transmission and Hydraulic Oil
Front-Wheel Drive Axle Oil
Grease
Oil Filters
Lubricant Storage
Mixing of Lubricants
Diesel Engine Coolant
Operating in Warm Temperature Climates
Drain Intervals for Diesel Engine Coolant
Alternative and Synthetic Lubricants
Section : 85 - Lubrication and Periodic Service
Using High-Pressure Washers
Service Intervals
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 2 Years
Every 3000 Hours or Every 3 Years
As Required
Section : 90 - Service / Daily or Every 10 Hours
Checking Engine Oil Level
Checking the Fuel Filter
Checking and Draining the Compressed Air Trailer Brake System
Checking on Lights
Other Service Jobs
Section : 95 - Service / Every 250 Hours
Servicing the Fuel Tank
Checking Transmission/Hydraulic System Oil Level
Checking Electrolyte Level of Battery
Lubricating Front Axle and Wheels (Tractors without Front-Wheel Drive)
Lubricating Front Axle and U.J. Shafts (Tractors with Front-Wheel Drive)
Checking Oil Level in MFWD Axle Housing
Checking Oil Level in MFWD Final Drives
Checking Brake Operation
Lubricating the Three-Point Hitch
Lubricate Hitch Jaw
Lubricating the Pick-Up Hitch
Pick-Up Hitch
Neutral Start Circuit
Wheel Retaining Bolts
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
Check Engine Speeds
Replacing Transmission/Hydraulic System Filter Elements
Changing the Filter on the Front PTO (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
Changing Oil In Front-Wheel Drive Axle Housing
Changing Oil In Front-Wheel Drive Final Drives
Changing Transmission/Hydraulic Oil
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 the Primary Filter Element
Cleaning a Dusty Element
Secondary (Safety) Element
Installation
Cleaning the Cab Air Filter
Keeping the Radiator Screen Clean
Checking the Fuel Filter
Bleeding the Fuel System
Lubricate All Lubricating Points
Operator's Seat
Prevent Battery Explosions
Battery - Checking Specific Gravity
Starter Motor
Fuses and Relays
Replacing the Drive Belt
Section : 130 - Troubleshooting
Hydraulic System
Engine
Electrical System
Section : 135 - Storage
Storage for Long Period
Removing Tractor From Storage
Section : 140 - Specifications
Engine
PTO Power Output
Transmission
Hydraulic System
Loads and Weights
Towed Mass
How to Calculate Permissible Mass
Electrical System
Capacities
Sound Level
Load Capacity of Tires, Front Axle Load
Load Capacity of Tires, Rear Axle Load
Load Capacity of Tires with Front Loader
Declaration of Conformity
Safety Note Regarding the Subsequent Installation of Electrical and Electronic Appliances and/or Components
Section : 145 - Serial Numbers
Type Plates
Product Identification Number
Engine Identification Number
Transmission Serial Number
FWD Axle Serial Number
Section : IBC - John Deere Service Keeps You On The Job
John Deere Parts
The Right Tools
Well-Trained Technicians
Prompt Service