John Deere 8120, 8220, 8320, 8420, and 8520 Tractors (North American Edition) Operator's Manual is divided into different sections. Each section covers a specific component or system with detailed illustrations. A table of contents is placed at the beginning of each section. Pages are easily found by category, and each page is expandable for great detail. The printer-ready PDF documents work like a charm on all kinds of devices. This document is printable, without restrictions, contains searchable text, bookmarks, crosslinks for easy navigation.

OMAR178070 - John Deere 8120, 8220, 8320, 8420, and 8520 Tractors (North American Edition) Operator's Manual.pdf
omar178089 - 8120, 8220, 8320, 8420 og 8520 Traktorer (010001 - ).pdf
omar178072 - Tracteurs 8120, 8220, 8320, 8420 et 8520.pdf

Category: Operator's Manual
Language: English French Norwegian
Published on 2005/04/22

TABLE OF CONTENTS
Section 05: Safety................20
  Recognize Safety Information................21
  Understand Signal Words................22
  Follow Safety Instructions................23
  Prevent Machine Runaway................24
  Use Seat Belt Properly................25
  Operating the Tractor Safely................26
  Stopping and Parking Tractor................27
  Keep Riders Off Machine................28
  Handle Fuel Safely-Avoid Fires................29
  Prepare for Emergencies................30
  Handle Starting Fluid Safely................31
  Wear Protective Clothing................32
  Protect Against Noise................33
  Handle Agricultural Chemicals Safely................34
  Avoid Contact with Pesticides................149
  Stay Clear of Rotating Drivelines................37
  Use Safety Lights and Devices................38
  Use a Safety Chain................39
  Transport Towed Equipment at Safe Speeds................40
  Use Caution on Hillsides................41
  Freeing a Mired Machine................413
  Transport Tractor Safely................43
  Service Cooling System Safely................44
  Practice Safe Maintenance................45
  Support Machine Properly................46
  Remove Paint Before Welding or Heating................47
  Avoid Heating Near Pressurized Fluid Lines................48
  Avoid High-Pressure Fluids................49
  Protect Against High Pressure Spray................50
  Handling Batteries Safely................51
  Dispose of Waste Properly................53
  Service Accumulator Systems Safely................54
Section 10: Safety Signs................56
  Safety Signs................56
Section 15: Controls and Instruments................57
  Front Console................58
  Ignition Switch................59
  Corner Post Display................60
  Side Console................61
  Armrest Controls................62
  Vehicle Monitor Warning System................63
  Vehicle Monitor................64
  Changing Display Functions................65
  Calibrating Radar................68
  Calibrating Tire Size................69
  Performance Monitor-If Equipped................57
  Performance Monitor-Data Entry and Saving Mode................57
  Performance Monitor-Adjusting Backlight................57
  Performance Monitor-Service................57
  Performance Monitor-Area, Distance, Area/H, Width, and PTO RPM................57
  Performance Monitor-Operation and Calibration................57
  Performance Monitor-Wheel Slip................57
  Performance Monitor-Vehicle Speed................57
Section 20: Lights................81
  Operating Lights................82
  Operating Turn Signals, Horn and High/Low Beam................84
  Using Delayed Egress Lighting-If Equipped................81
  Operating Hazard Light................86
  Operating Rotary Beacon Light-If Equipped................81
  Using Extremity Transport Warning Lights................88
  Using Seven-Terminal Outlet................89
Section 25: Operator Station................90
  Adjusting Air Suspension Seat................91
  Heated Leather Seat-If Equipped................90
  Operator Presence Sensor................236
  Adjusting Armrest Control................96
  Using Heating and Air Conditioning - Standard................97
  Using ClimaTrakClimaTrak is a trademark of Deere & Company (ATC) - If Equipped (Serial No. -010000)................90
  Using ClimaTrakClimaTrak is a trademark of Deere & Company (ATC) - If Equipped (Serial No. 010001-)................90
  Change ClimaTrakClimaTrak is a trademark of Deere & Company (ATC) Unit Display From Fahrenheit to Centigrade................90
  Operating Windshield Wiper................105
  Operating Rear Windshield Wiper and Washer- If Equipped................106
  Adjusting Steering Wheel................107
  Operating the Radio................108
  Operating the Radio with Optional Cassette Tape Player................110
  Operating the Optional Compact Disc Player................116
  Operating the Optional Cassette Tape Player................114
  Operating the Optional Compact Disc Player................116
  Setting the Clock................118
  Installing Mobile Radio and Antenna-Standard Cab................90
  Installing Mobile Radio and Antenna-Deluxe Cab................90
  Using Field Office-If Equipped................90
  Using Electrical Outlets................124
  Using Auxiliary Power Strip-If Equipped................90
  Identifying GREENSTAR GREENSTAR is a trademark of Deere & Company System Connections-If Equipped................90
  Using Monitor Mounts................128
  Using Electric Rear View Mirror-If Equipped................90
  Using Storage Compartment-If Equipped................130
  Positioning Steps and Handrails................131
  Right-Hand Steps-If Equipped................132
  Accessory Step-If Equipped................133
Section 30: Break-In Period................134
  Break-In Check-First 100 Hours................134
  Break-In Check-After First 100 Hours................134
Section 35: Operating the Engine................143
  Engine Fuel System and Power Rating................138
  Starting the Engine................139
  Cold Weather Starting-If Equipped................140
  Cold Weather Starting-Without Optional Cold Weather Starting Aid................141
  Operating the Engine................143
  Changing Starting Fluid Cans-If Equipped................144
  Using Auxiliary Heaters––If Equipped................145
  Using a Battery Booster or Charger................146
Section 40: Operating the Tractor................148
  Avoid Contact with Pesticides................149
  Clean Tractor of Hazardous Pesticides................150
  Using Emergency Exit................151
  Using Seat Belts................152
  Using Instructional Seat................153
  Transmission-Hydraulic System Warm-Up................154
  Operating the Transmission................155
  Shifting the Transmission................156
  Operating Tractor with Independent Link Suspension................159
  Operating Automatic Powershift (APS)................160
  Transmission Service Codes................161
  Using the Brakes................162
  Using Mechanical Front-Wheel Drive................163
  Using Differential Lock................164
  Using Field Cruise................165
Section 45: Implement Management System................166
  Implement Management System (IMS) - Description................167
  Implement Management System (IMS) - Display Codes................168
  IMS Functions - Hitch................170
  IMS Functions - Transmission................171
  IMS Functions - Automatic PowerShift (APS)................172
  IMS Functions - Selective Control Valves................173
  IMS Functions - MFWD................174
  IMS Functions - PTO................175
  IMS Functions - Differential Lock................176
  Operating The Implement Management System (IMS)................177
  Aborting IMS................179
  Clearing IMS Sequence................180
Section 50: Hitch................181
  Hitch Components................182
  Hitch Controls................183
  Using Correct Hitch Category................184
  Using Hitch Control Lever and Raise/Lower Switch................185
  Adjusting Height Limit................187
  Adjusting Rate of Drop................188
  Using External Raise and Lower Switches................189
  Using Hitch Manual Lowering Feature................190
  Using Load/Depth Control................191
  Using Position Control................192
  Using Float Position................193
  Using Draft Control................194
  Using Hitch Slip Command (HSC)................195
  Using Sway Blocks................197
  Attaching Implement to Quick Coupler................198
  Adjusting Implement Level................200
  Changing Lateral Float................202
  Detaching Implement from Quick Coupler................203
  Hitch Conversion-Convertible Quick Coupler................204
  Using Front Hitch-If Equipped................181
Section 55: TouchSet Depth Control................209
  Using TouchSetTouchSet is a trademark of Deere & Company Depth Controls................209
  TouchSetTouchSet is a trademark of Deere & Company Scraper Control-for Scrapers Equipped with Scraper Control Unit-If Equipped................209
  Enabling TouchSetTouchSet is a trademark of Deere & Company Scraper Control System................209
  Attaching Implement and Control System................213
  Checking Depth Control Operation................216
  Detaching Implement................218
Section 60: Hydraulics and Selective Control Valves................219
  Connecting Hydraulic Hoses................220
  Disconnecting Hydraulic Hoses................222
  Using SCV TouchSetTouchSet is a trademark of Deere & Company Controls and Monitor................219
  Determining Total Flow Demand................225
  Adjusting Selective Control Valve Flow Rate................227
  Adjusting Timed Detent................228
  Using SCV Control Levers................229
  SCV Lever-Neutral Position................219
  SCV Lever-Extend Position................219
  SCV Lever-Extend Detent Position................219
  SCV Lever-Retract Position................219
  SCV Lever-Retract Detent Position................219
  SCV Lever-Float Position................219
  Operator Presence Sensor................236
Section 65: Remote Hydraulic Connections................237
  Hydraulic Component Identification................238
  Using Load-Sensing Hydraulic System-Power-Beyond................237
  Examples Using Load-Sensing Hydraulic System- Power-Beyond................240
  Using Hydraulic Spray Pumps................242
  Implement Connection Example 1-Pressure Control Valve Applications (Grain Drills or Air Seeders with Constant Down-Pressure System)................244
  Implement Connection Example 2-Motor Application Using Motor Case Drain................245
  Implement Connection Example 3-Closed Center Valve with Pump at High Pressure................247
  Implement Connection Example 4-Planter with Vacuum Motor and Return Line to SCV Using Motor Return Tip................248
  Implement Connection Example 5-Planter with Vacuum Motor, Return Line to Motor Return and Lift Assist................249
  Implement Connection Example 6-Planter with Vacuum Motor and Return Line to Motor Return................250
  Using Hydraulic Motor Return................251
  Using Hydraulic Motor Case Drain Return (Sump)................252
  Using Implement Requiring Large Volumes of Oil................254
Section 70: Drawbar and PTO................255
  Observing Drawbar Load Limitations................256
  Adjusting Drawbar Length................260
  Adjusting Drawbar Height................261
  Adjusting Drawbar Side-to-Side................262
  Installing and Using Clevis Assembly................263
  Attaching PTO-Driven Implement................265
  Using PTO Shield................267
  Operating Rear PTO................268
  Using Correct Engine Speed................269
  Using Correct PTO Shaft................270
  Changing PTO Stub Shaft................271
Section 75: Performance Ballasting................273
  General Performance Guidelines................274
  Maximum Load Per Wheel................276
  Controlling Power Hop-MFWD And Independent Link Suspension Tractors................278
  Using Rear Wheel Weights................295
  Calculating Ballast for Optimum Performance................281
  Worksheet to Calculate Ballast Changes................284
  Unballasted Tractor Weight Chart for 8120, 8220, 8320 Small Frame Tractors................285
  Unballasted Tractor Weight Chart for 8120, 8220, 8320 Large Frame and 8420 MFWD Tractors................289
  Unballasted Tractor Weight Chart for 8420 and 8520 Independent Link Suspension................290
  Installing Quik-Tatch Weights................293
  Using Rear Wheel Weights................295
  Using Implement Codes................297
  Implement Codes-Quik-Tatch Weights Required................273
  Weight Added to Rear Axle with Hitch Mounted Implements................300
  Measuring Wheel Slip-Manually................301
  Using Liquid Ballast................303
  Liquid Ballast-Front Tires................273
  Liquid Ballast-Rear Tires................273
Section 80: Wheels, Tires, and Treads................306
  Tire Combinations................308
  Tire Combinations Tables................309
  Tire Inflation Pressure Guidelines................310
  Recommended Pressures-Bias Single Front Tires................306
  Recommended Tire Pressures-Group 41................306
  Recommended Pressures-Group 42................306
  Recommended Pressures-Group 42 - Continued................306
  Recommended Pressures-Group 42 - Continued................306
  Recommended Pressures-Group 43................306
  Recommended Pressures-Group 43 - Continued................306
  Recommended Pressures-Group 46................306
  Recommended Pressures-Group 47................306
  Recommended Pressures-Group 47-Continued................306
  Recommended Pressures-Group 47 - Continued................306
  Recommended Pressures-Group 48................306
  Recommended Pressures-Group 48 - Continued................306
  Two Wheel Drive Front Axle Adjustment................336
  Two Wheel Drive Front Axle and Wheel Bolt Tightening................337
  Two Wheel Drive Front Axle Toe-In Check................338
  Two Wheel Drive Front Axle Toe-In Adjustment................339
  Two Wheel Drive Front Axle Tread Setting................340
  Two Wheel Drive Front Axle with Extensions Tread Settings................341
  MFWD and Independent Link Suspension Front Wheel Bolts Tightening................342
  Independent Link Suspension Front Duals Installation................344
  MFWD Toe-In Check................346
  MFWD Toe-In Adjustment................347
  MFWD Steering Stop Settings................348
  Independent Link Suspension Steering Stop Settings................349
  Determining Rim Type................352
  Eight Position Wheel Settings................353
  Sixteen Position Wheel Settings................357
  MFWD Fender Settings................358
  Independent Link Suspension Fender Settings................359
  MFWD and Independent Link Suspension Front Tire, Fender and Steering Stop Settings................360
  Independent Link Suspension Dual Front Tire, Fender and Steering Stop Settings................370
  Drive Rim to Cast Wheel Installation................372
  Dual Wheel to Hub Installation................373
  Rear Drive Wheel with Standard Hubs Adjusting and Tightening................374
  Rear Drive Wheels with Standard Hubs Adjusting and Tightening................376
  Rear Drive Wheel and Dual Heavy Duty Hubs Adjusting and Tightening................378
  Rear Wheel, Tire, and Tread Guidelines................379
  Rear Drive Wheel Tread Settings for Single Wheels................381
  Rear Dual Wheel Tread Settings................383
  Rear Triple Wheel Tread Settings................392
  480 and 520 mm Triple Rear Wheel Tread Settings................398
  Rear Dual Wheel Row Crop Settings................400
  Rear Triple Wheel Row Crop Settings................402
Section 85: Transport................405
  Driving Tractor on Roads................406
  Transporting With Ballast................407
  Towing Loads................408
  Using a Safety Chain................409
  Towing Tractor................410
  Freeing a Mired Machine................413
  Transporting on Carrier................415
Section 90: Fuels, Lubricants, and Coolant................417
  Diesel Fuel................418
  Handling and Storing Diesel Fuel................419
  Fill Fuel Tank................420
  Bio-Diesel Fuel................421
  Diesel Engine Break-In Oil................422
  Diesel Engine Oil................423
  Extended Diesel Engine Oil Service Intervals................424
  Oil Filters................425
  Diesel Engine Coolant................426
  Operating in Warm Temperature Climates................428
  Drain Intervals for Diesel Engine Coolant................429
  Additional Information About Diesel Engine Coolants and Supplemental Coolant Additives................430
  OILSCAN OILSCAN is a registered trademark of Deere & Company. and COOLSCAN COOLSCAN is a trademark of Deere & Company.................417
  Testing Diesel Engine Coolant................433
  Transmission and Hydraulic Oil................434
  Powershift Transmission Recalibration................435
  MFWD Differential Case Oil-Standard MFWD................417
  MFWD Differential Case Oil-MFWD with Independent Link Suspension................417
  MFWD Wheel Hub Oil................438
  Grease................440
  Mixing of Lubricants................441
  Alternative and Synthetic Lubricants................442
  Lubricant Storage................443
Section 95: Maintenance and Service Intervals................444
  Observe Service Intervals................445
  Raising the Hood................446
  Service Interval Chart-Daily or 10 Hours-250 Hours-500 Hours-750 Hours................444
  Service Interval Chart-1500 Hours-2000 Hours-Annual-Two Years-4500 Hours................444
  Using High-Pressure Washers................450
  Using Compressed Air................451
Section 100: General Maintenance and Inspection................452
  Inspecting Neutral Start System................453
  Checking Transmission PARK Position................454
  Checking Tires................455
  Checking wheel and Weight Bolts................456
  Cleaning MFWD Axle Vent Filter................457
  Cleaning and Inspecting Primary Engine Air Filter................458
  Replacing Primary and Secondary Engine Air Filters................459
  Cleaning or Replacing Cab Air Filters................460
  Servicing Air Intake System................461
  Cleaning Radiator and Oil Cooler Condenser................462
  Checking Air Conditioning System................463
  Servicing the Batteries................465
  Replacing Auxiliary Drive Belt................467
  Auxiliary Drive Belt Routing................469
  Inspecting Fan Belt Tensioner................471
  Replacing Fan Belt................472
  Checking Manual Brakes................473
  Inspecting Seat Belts................474
  Replacing Engine Crankshaft Damper................475
Section 105: Lubrication................476
  Checking Engine Oil Level................477
  Changing Engine Oil and Filter................478
  Checking Transmission-Hydraulic Oil Level................480
  Changing Transmission-Hydraulic Oil and Cleaning Transmission filter Screen................481
  Replacing Transmission-Hydraulic Filter................483
  Draining Clean Oil Reservoir................484
  Cleaning Hydraulic Oil Suction Screen................485
  Lubricating Front Axle................486
  Lubricating Front Wheel Bearings................487
  Lubricating MFWD Axle-Standard................476
  Lubricating Independent Link Suspension Axle-External Fittings................489
  Lubricating Independent Link Suspension Axle-Tie Rod Internal Ball Joints................490
  Lubricating Independent Link Suspension U-Joints................494
  Checking MFWD Differential Case Oil Level................495
  Changing MFWD Differential Case Oil................496
  Checking MFWD Wheel Hub Oil Level................497
  Changing MFWD Wheel Hub Oil................498
  Lubricating Hitch Components................499
  Lubricating Front Hitch - If Equipped................500
  Lubricate Draft Link Support Shaft Bushing................501
Section 110: Maintenance-Cooling System................502
  Checking Coolant Level................503
  Testing the Coolant................504
  Draining, Flushing, and Refilling Cooling System................505
Section 115: Maintenance-Fuel System................507
  Draining Water Separator................508
  Replacing Fuel Filter................509
  Bleeding Fuel System................512
  Cleaning Fuel Tank Vent Filter................516
  Replacing Fuel Screen-Late Version................517
  Draining Fuel Tank Sump................518
Section 120: Maintenance-Electrical System................519
  Replacing Fuses and Relays................520
  Load Center Fuses................521
  Load Center Relays and Diodes (–010000)................523
  Load Center Relays and Diodes (010001 - 014679)................525
  Load Center Relays and Diodes (014680––)................527
  Handling Halogen Light Bulbs Safely................529
  Replacing Front Grille Lights................530
  Adjusting Front Grille Lights................532
  Aiming Head Lights................533
  Replacing Front Belt-Line, Cab Roof Rear and Side or Rear Fender floodlight Element................534
  Replacing Cab Roof Hazard Light Bulbs................535
  Replacing Tail Light Bulb................536
  Replacing instrument and Display Illumination Light Bulb................537
  Replacing Dome Light Bulb................539
  Replacing Extremity Warning Light Bulb (if Equipped)................540
  Replacing Work Light Element (If Equipped)................541
  Replacing Loader Floodlight (If Equipped)................543
Section 125: Troubleshooting................544
  Engine Troubleshooting................545
  Transmission Troubleshooting................551
  Hydraulic System Troubleshooting................552
  Brakes Troubleshooting................553
  Hitch Troubleshooting................554
  Selective Control Valve Troubleshooting................557
  TouchSet Depth Control Troubleshooting................558
  Electrical System Troubleshooting................559
  Operator Enclosure Troubleshooting................562
  Tractor Operation Troubleshooting................563
  Independent Link Suspension Troubleshooting................564
Section 130: Service Codes................565
  Active Seat Unit Service Codes (ASU)................566
  Armrest Control Unit Service Codes (ACU)................568
  Central Control Unit Service Codes (CCU)................569
  ClimaTrak Display Codes (ATC) - If Equipped (Serial No. 010001-)................574
  Engine Control Unit Service Codes (ECU)................577
  Electro-Hydraulic Options Service Codes (EHo)................582
  Hitch Control Unit Service Codes (HCU)................584
  Instrument Control Unit Service Codes (ICU)................586
  Powershift Control Unit Service Codes (PCU)................587
  Optional SCV Control Unit Service Codes (SCo)................591
  SCV Control Unit Service Codes (SCU)................593
  Steering Service Codes - (SSU)................595
  SCV Setup Panel Service Codes (SUP)................598
Section 135: Storage................599
  Placing Tractor in Long-Term Storage................600
  Removing Tractor from Storage................602
  Paint Finish Care................603
Section 140: Specifications................604
  General Specifications................605
  Overall Dimensions................608
  Ground Speeds................609
  Metric Bolt and Screw Torque Values................610
  Unified Inch Bolt and Screw Torque Values................612
  Identify Zinc-Flake Coated Fasteners................614
  Limited Battery Warranty................615
Section 145: Identification Numbers................617
  Identification Plates................618
  Record Tractor Identification Number................619
  Record Engine Serial Number................620
  Record Cab Serial Number................621
  Record Transmission Serial Number................622
  Record Mechanical Front-Wheel Drive Serial Number................623
  Keep Proof of Ownership................624
  Keep Machines Secure................625
Section 150: Lubrication and Maintenance Records................626
  250 Hour Service Records................627
  500 Hour Service Records................628
  750 Hour Service Records................629
  1500 Hour Service Records................630
  2000 Hour Service Records................631
  Annual Service Records................632
  Two Year Service Records................633
  4500 Hour Service Records................634
Section 155: Glossary................635
  Glossary of Terms................636
Section SLIT: John Deere Service Literature Available................638
  Technical Information................639
Section IBC: John Deere Service Keeps You on the Job................640
  John Deere Is At Your Service................641

John Deere 8120, 8220, 8320, 8420, and 8520 Tractors (North American Edition) Operator's Manual (OMAR178070)