John Deere 8120T, 8220T, 8320T, 8420T and 8520T Tractors (902001 - ) 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, cross links for easy navigation.

OMAR178077 - John Deere 8120T, 8220T, 8320T, 8420T and 8520T Tractors (902001 - ) Operator's Manual.pdf

TABLE OF CONTENTS
Section 05: Safety................17
  Recognize Safety Information................19
  Understand Signal Words................20
  Follow Safety Instructions................21
  Prevent Machine Runaway................22
  Use Seat Belt Properly................23
  Operating the Tractor Safely................24
  Stopping and Parking Tractor................26
  Keep Riders Off Machine................27
  Handle Fuel Safely-Avoid Fires................28
  Prepare for Emergencies................29
  Avoid Trash Build-Up................30
  Handle Starting Fluid Safely................31
  Wear Protective Clothing................32
  Protect Against Noise................33
  Avoid Contact with Pesticides................158
  Handle Agricultural Chemicals Safely................35
  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................42
  Freeing a Mired Machine................328
  Transport Tractor Safely................44
  Service Cooling System Safely................45
  Practice Safe Maintenance................46
  Support Machine Properly................47
  Remove Paint Before Welding or Heating................48
  Avoid Heating Near Pressurized Fluid Lines................49
  Avoid High-Pressure Fluids................50
  Service Accumulator Systems Safely................51
  Protect Against High Pressure Spray................52
  Handling Batteries Safely................53
  Dispose of Waste Properly................55
Section 10: Safety Signs................57
  Safety Signs................57
  Pictorial Safety Signs................58
  Operator's Manual................59
  External Hitch Control Switch................60
  Radar Sensor-Optional................56
Section 15: Controls and Instruments................62
  Front Console................63
  Ignition Switch................64
  Corner Post Display................65
  Side Console-Standard Cab................66
  Side Console-Deluxe Cab................67
  Armrest Controls................68
  Vehicle Monitor Warning System................70
  Vehicle Monitor................72
  Changing Display Functions................74
  Calibrating Radar................77
  Performance Monitor-If Equipped................62
  Performance Monitor-Data Entry and Saving Mode................62
  Performance Monitor-Adjusting Backlight................62
  Performance Monitor-Service................62
  Performance Monitor-Area, Distance, Area/H, Width, and PTO RPM................62
  Performance Monitor-Operation and Calibration................62
  Performance Monitor-Track Slip................62
  Performance Monitor-Vehicle Speed................62
Section 20: Lights................92
  Operating Lights................93
  Operating Turn Signals, Horn and High/Low Beam................96
  Using Delayed Egress Lighting-If Equipped................92
  Operating Hazard Light................98
  Operating Rotary Beacon Light-If Equipped................92
  Using Extremity Transport Warning Lights................100
  Using Seven-Terminal Outlet................101
Section 25: Operator Station................103
  Adjusting Air Suspension Seat................104
  Heated Leather Seat-If Equipped................103
  Operator Presence Sensor................245
  Adjusting Steering Wheel................109
  Adjusting Armrest Control................110
  Using Heating and Air Conditioning - Standard................111
  Using ClimaTrakClimaTrak is a trademark of Deere & Company (ATC) - If Equipped (Serial No. -902000)................103
  Using ClimaTrakClimaTrak is a trademark of Deere & Company (ATC) - If Equipped (Serial No. 902001-)................103
  Change ClimaTrakClimaTrak is a trademark of Deere & Company (ATC) Unit Display From Fahrenheit to Centigrade................103
  Operating Windshield Wiper................119
  Operating Rear Windshield Wiper and Washer- If Equipped................120
  Operating the Radio................121
  Operating the Radio with Optional Cassette Tape Player................123
  Operating the Optional Compact Disc Player................129
  Operating the Optional Cassette Tape Player................127
  Operating the Optional Compact Disc Player................129
  Setting the Clock................131
  Installing Mobile Radio and Antenna-Standard Cab................103
  Installing Mobile Radio and Antenna-Deluxe Cab................103
  Using Field Office-If Equipped................103
  Using Electrical Outlets................137
  Using Auxiliary Power Strip-If Equipped................103
  Identifying GREENSTAR GREENSTAR is a trademark of Deere & Company System Connections-If Equipped................103
  Using Monitor Mounts................142
  Positioning Steps................143
Section 30: Break-In Period................144
  Break-In Check-First 100 Hours................144
  Break-In Check-After First 100 Hours................144
  Track System Break-In................147
Section 35: Operating the Engine................153
  Engine Fuel System and Power Rating................149
  Starting the Engine................150
  Cold Weather Starting-If Equipped................148
  Cold Weather Starting-Without Optional Cold Weather Starting Aid................152
  Operating the Engine................153
  Changing Starting Fluid Cans................154
  Using Auxiliary Heaters––If Equipped................156
  Using Auxiliary Heaters––If Equipped................156
Section 40: Operating the Tractor................157
  Avoid Contact with Pesticides................158
  Clean Tractor of Hazardous Pesticides................160
  Clean Tractor of Trash Build-up................161
  Using Emergency Exit................163
  Using Seat Belts................164
  Using Instructional Seat................165
  Transmission-Hydraulic System Warm-Up................166
  Operating the Transmission................167
  Shifting the Transmission................169
  Operating Automatic Powershift (APS)................172
  Transmission Service Codes................174
  Using the Brakes................175
  Using Field Cruise................176
Section 45: Implement Management System................177
  Implement Management System (IMS) - Description................178
  Implement Management System (IMS) - Display Codes................179
  IMS Functions - Hitch................181
  IMS Functions - Transmission................182
  IMS Functions - Automatic PowerShift (APS)................183
  IMS Functions - Selective Control Valves................184
  IMS Functions - PTO................185
  Operating The Implement Management System (IMS)................186
  Aborting IMS................188
  Clearing IMS Sequence................189
Section 50: Hitch................190
  Hitch Components................191
  Hitch Controls................192
  Using Correct Hitch Category................193
  Using Hitch Control Lever and Raise/Lower Switch................194
  Adjusting Height Limit................196
  Adjusting Rate of Drop................197
  Using External Raise and Lower Switches................198
  Using Hitch Manual Lowering Feature................199
  Using Load/Depth Control................200
  Using Position Control................201
  Using Float Position................202
  Using Draft Control................203
  Using Hitch Slip Command (HSC)................204
  Using Sway Blocks................206
  Attaching Implement to Quick Coupler................207
  Adjusting Implement Level................210
  Changing Lateral Float................212
  Detaching Implement from Quick Coupler................213
  Hitch Conversion-Convertible Quick Coupler................214
Section 55: TouchSet Depth Control................217
  Using TouchSet Depth Controls................218
  Attaching Implement and Control System................220
  Checking Depth Control Operation................223
  Detaching Implement................225
Section 60: Hydraulics and Selective Control Valves................226
  Connecting Hydraulic Hoses................227
  Disconnecting Hydraulic Hoses................230
  Using SCV TouchSet Controls and Monitor................231
  Determining Total Flow Demand................233
  Adjusting Selective Control Valve Flow Rate................235
  Adjusting Timed Detent................236
  Using SCV Control Levers................238
  SCV Lever-Neutral Position................226
  SCV Lever-Extend Position................226
  SCV Lever-Extend Detent Position................226
  SCV Lever-Retract Position................226
  SCV Lever-Retract Detent Position................226
  SCV Lever-Float Position................226
  Operator Presence Sensor................245
Section 65: Remote Hydraulic Connections................246
  Hydraulic Component Identification................247
  Using Load-Sensing Hydraulic System-Power-Beyond................246
  Examples Using Load-Sensing Hydraulic System- Power-Beyond................249
  Using Hydraulic Spray Pumps................252
  Implement Connection Example 1-Pressure Control Valve Applications (Grain Drills or Air Seeders with Constant Down-Pressure System)................254
  Implement Connection Example 2-Motor Application Using Motor Case Drain................255
  Implement Connection Example 3-Closed Center Valve with Pump at High Pressure................257
  Implement Connection Example 4-Planter with Vacuum Motor and Return Line to SCV Using Motor Return Tip................258
  Implement Connection Example 5-Planter with Vacuum Motor, Return Line to Motor Return and Lift Assist................259
  Implement Connection Example 6-Planter with Vacuum Motor and Return Line to Motor Return................260
  Using Hydraulic Motor Return................261
  Using Hydraulic Motor Case Drain Return (Sump)................262
  Using Implement Requiring Large Volumes of Oil................264
Section 70: Drawbar and PTO................265
  Observing Drawbar Load Limitations................266
  Adjusting Drawbar Length................269
  Adjusting Drawbar Height................270
  Adjusting Drawbar Side-to-Side................271
  Installing and Using Clevis Assembly................272
  Attaching PTO-Driven Implement................274
  Using PTO Shield................276
  Operating Rear PTO................278
Section 75: Performance Ballasting................279
  General Performance Guidelines................280
  Ballasting for Tractive Performance................282
  Base Weight and Weight Options................283
  Determining Maximum Ballast................284
  Worksheet to Calculate Ballast Changes................285
  Measuring Track Slip -Manually................279
  Ballasting Recommendations With Implements................288
  Implement Guidelines................290
  Using Mounted Spray Tanks................292
  Installing Front QUIK-TATCH QUIK-TATCH is a trademark of Deere & Company Weights................279
  Installing Front QUIK-TATCH Side Weights................294
  Installing Side Frame QUIK-TATCH Weights................295
  Using Drive Wheel Weights................296
  Using Idler Weights................297
Section 80: Tracks and Track Tread Settings................299
  Tread Settings................299
  Drive Wheel Settings................301
  Frame Bolt Settings-Standard................298
  Frame Bolt Settings-Wide Axle Option................298
  Adjust Track Settings................304
  Aligning Track................313
  Track Tensioning and Detensioning................315
  Removing and Installing Track................317
Section 85: Transport................322
  Driving Tractor on Roads................323
  Transporting with Ballast................324
  Towing Loads................325
  Using a Safety Chain................326
  Towing Tractor................327
  Freeing a Mired Machine................328
  Transporting on Carrier................329
Section 90: Fuels, Lubricants, and Coolant................330
  Diesel Fuel................331
  Handling and Storing Diesel Fuel................332
  Fill Fuel Tank................333
  Bio-Diesel Fuel................335
  Diesel Engine Break-In Oil................336
  Diesel Engine Oil................337
  Extended Diesel Engine Oil Service Intervals................338
  Oil Filters................339
  Diesel Engine Coolant................340
  Operating in Warm Temperature Climates................342
  Drain Intervals for Diesel Engine Coolant................343
  Additional Information About Diesel Engine Coolants and Supplemental Coolant Additives................344
  OILSCAN OILSCAN is a registered trademark of Deere & Company. and COOLSCAN COOLSCAN is a trademark of Deere & Company.................330
  Testing Diesel Engine Coolant................347
  Transmission and Hydraulic Oil................348
  Powershift Transmission Recalibration................349
  Grease................350
  Mixing of Lubricants................351
  Alternative and Synthetic Lubricants................352
  Lubricant Storage................353
  Mid-Frame Roller Oil................354
Section 95: Maintenance and Service Intervals................355
  Observe Service Intervals................356
  Raising the Hood................357
  Using High-Pressure Washers................358
  Using Compressed Air................359
  Service Interval Chart-Daily or 10 Hours-250 Hours-500 Hours-750 Hours................355
  Service Interval Chart-1500 Hours-2000 Hours-Annual-Two Years-4500 Hours................355
Section 100: General Maintenance and Inspection................362
  Inspecting Neutral Start System................363
  Checking Transmission PARK Position................364
  Inspecting Tracks, Drive Wheels, Mid-Rollers and Idler Wheels................365
  Checking Track Alignment................368
  Cleaning and Inspecting Primary Engine Air Filter................369
  Replacing Primary and Secondary Engine Air Filters................370
  Cleaning or Replacing Cab Air Filters................372
  Servicing Air Intake System................374
  Cleaning Radiator and Oil Cooler Condenser................375
  Checking Air Conditioning System................376
  Servicing the Batteries................378
  Replacing Auxiliary Drive Belt................381
  Inspecting Fan Belt Tensioner................383
  Replacing Fan Belt................384
  Checking Manual Brakes................385
  Inspecting Seat Belts................386
Section 105: Lubrication................387
  Checking Engine Oil Level................388
  Changing Engine Oil and Filter................389
  Checking Transmission-Hydraulic Oil Level................392
  Changing Transmission-Hydraulic Oil................393
  Replacing Transmission-Hydraulic Filter................395
  Replacing Steering Filter................396
  Draining Clean Oil Reservoir................397
  Draining Pump Drive Housing................398
  Cleaning Transmission Filter Screen................399
  Cleaning Hydraulic Oil Suction Screen................400
  Changing Drive Wheel Hub Housing Oil................401
  Lubricating Tension Cylinder................402
  Lubricating Front Idler................403
  Checking Mid-Frame Rollers Oil Level................404
  Lubricating Hitch Components................405
  Checking Idler Wheel Hub Oil Level................406
  Lubricating Draft Link Support Shaft Bushing................407
Section 110: Maintenance-Cooling System................408
  Checking Coolant Level................409
  Testing the Coolant................410
  Draining, Flushing, and Refilling Cooling System................411
Section 115: Maintenance-Fuel System................413
  Draining Water Separator................414
  Replacing Fuel Filter................415
  Bleeding Fuel System................418
  Cleaning Fuel Tank Vent Filter................422
  Draining Fuel Tank Sump................423
Section 120: Maintenance-Electrical System................424
  Replacing Fuses and Relays................425
  Load Center Fuses................426
  Load Center Relays and Diodes................428
  Handling Halogen Light Bulbs Safely................430
  Replacing Front Grille Lights................431
  Adjusting Front Grille Lights................433
  Aiming Head Lights................434
  Replacing Front Belt-Line, Cab Roof Rear and Side or Rear Fender floodlight Element................435
  Replacing Cab Roof Hazard Light Bulbs................436
  Replacing Tail Light Bulb................437
  Replacing instrument and Display Illumination Light Bulb................438
  Replacing Dome Light Bulb................440
  Replacing Extremity Warning Light Bulb (if Equipped)................441
  Replacing Work Light Element (If Equipped)................443
  Replacing Loader Floodlight (If Equipped)................446
Section 125: Troubleshooting................447
  Engine Troubleshooting................448
  Transmission Troubleshooting................453
  Hydraulic System Troubleshooting................455
  Steering System Troubleshooting................456
  Brakes Troubleshooting................458
  Hitch Troubleshooting................459
  Selective Control Valve Troubleshooting................461
  TouchSet Depth Control Troubleshooting................462
  Electrical System Troubleshooting................463
  Operator Enclosure Troubleshooting................466
Section 130: Service Codes................467
  Armrest Control Unit Service Codes-(ACU)................467
  Central Control Unit Service Codes-(CCU)................467
  ClimaTrak Display Codes (ATC) - If Equipped (Serial No. 902001-)................474
  Engine Control Unit Service Codes-(ECU)................467
  Electro-Hydraulic Options Service Codes- (EHo)................482
  Hitch Control Unit Service Codes-(HCU)................467
  Instrument Control Unit Service Codes- (ICU)................485
  Powershift Control Unit Service Codes- (PCU)................486
  Optional SCV Control Unit Service Codes- (SCo)................491
  SCV Control Unit Service Codes-(SCU)................467
  Steering System Unit Service Codes-(SSU)................467
  SCV Setup Panel Service Codes-(SUP)................467
Section 135: Storage................499
  Placing Tractor in Long-Term Storage................500
  Removing Tractor from Storage................502
  Paint Finish Care................503
Section 140: Specifications................504
  General Specifications................505
  Overall Dimensions................508
  Ground Speeds................509
  Metric Bolt and Cap Screw Torque Values................510
  Unified Inch Bolt and Cap Screw Torque Values................512
  Identify Zinc-Flake Coated Fasteners................514
  Limited Battery Warranty................515
Section 145: Identification Numbers................516
  Identification Plates................517
  Record Tractor Identification Number................518
  Record Engine Serial Number................519
  Record Cab Serial Number................520
  Record Transmission Serial Number................521
  Record Track Serial Numbers................522
  Camoplast Track Serial Numbers................523
  Keep Proof of Ownership................525
  Keep Machines Secure................526
Section 150: Lubrication and Maintenance Records................527
  250 Hour Service Records................528
  500 Hour Service Records................529
  750 Hour Service Records................530
  1500 Hour Service Records................531
  2000 Hour Service Records................532
  Annual Service Records................533
  Two Year Service Records................534
  4500 Hour Service Records................535
Section 155: Glossary................536
  Glossary of Terms................537
Section IBC: John Deere Service Keeps You On The Job................539
  John Deere Parts................540
  The Right Tools................541
  Well-Trained Technicians................542
  Prompt Service................543
 
John Deere 8120T, 8220T, 8320T, 8420T and 8520T Tractors (902001 - ) Operator's Manual (OMAR178077)