Complete service repair manual for John Deere 450J Crawler Dozer (S.N. from 216243), with all the workshop information to maintain, repair, and service like professional mechanics.

John Deere 450J Crawler Dozer workshop service repair manual includes:
* 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.

TM12275 English - John Deere 450J Crawler Dozer Technical Manual - Repair.PDF
tm12276 French - 450J (216243— ) Bouteur chenillé.pdf
tm12277 Spanish - 450J (SN 216243— ) Bulldozer sobre orugas.pdf

MAIN SECTIONS
Foreword
   Technical Information Feedback Form
   General Information
      Safety
      Torque Values
   Tracks
      Track System
   Axles and Suspension Systems
      Drive Axle Housing and Support
      Axle Shaft, Bearings, and Reduction Gear
   Transmission
      Removal and Installation
      Controls Linkage
      Hydrostatic System
   Engine
      Removal and Installation
   Engine Auxiliary Systems
      Cold Weather Starting Aids
      Radiator and Fan Shroud
      Engine Speed Control
      Intake System
      External Exhaust System
      Mounting Frame
      External Fuel Supply System
   Dampener Drive
      Elements
   Park Brake
      Removal and Installation
      Control Linkage
      Hydraulic System
   Equipment Attaching
      Ripper
   Operator`s Station
      Removal and Installation
      Operator`s Enclosure
      Seat and Seat Belt
      Heating and Air Conditioning
   Sheet Metal and Styling
      Hood and Engine Enclosure
      Grille and Grille Housing
   Main Hydraulic System
      Hydraulic System
   Bulldozer
      Blades
      Control Linkage
      Frames
      Hydraulic System
   Dealer Fabricated Tools

TABLE OF CONTENTS
Section 00: General Information...11
  Group 01: Safety...11
    Recognize Safety Information...14
    Follow Safety Instructions...15
    Operate Only If Qualified...16
    Wear Protective Equipment...17
    Avoid Unauthorized Machine Modifications...18
    Inspect Machine...19
    Stay Clear of Moving Parts...20
    Avoid High-Pressure Fluids...21
    Avoid High-Pressure Oils...22
    Beware of Exhaust Fumes...23
    Prevent Fires...24
    Prevent Battery Explosions...25
    Handle Chemical Products Safely...26
    Dispose of Waste Properly...27
    Prepare for Emergencies...28
    Add Cab Guarding For Special Uses...29
    Start Only From Operator's Seat...30
    Prevent Unintended Machine Movement...31
    Avoid Work Site Hazards...32
    Keep Riders Off Machine...34
    Avoid Backover Accidents...35
    Avoid Machine Tip Over...36
    Prevent Unintended Detonation of Explosive Devices...38
    Park And Prepare For Service Safely...39
    Service Cooling System Safely...40
    Remove Paint Before Welding or Heating...41
    Make Welding Repairs Safely...42
    Drive Metal Pins Safely...43
  Group 03: Torque Values...11
    Metric Bolt and Cap Screw Torque Values...46
    Additional Metric Cap Screw Torque Values...48
    Unified Inch Bolt and Cap Screw Torque Values...50
    Service Recommendations for 37° Flare and 30° Cone Seat Connectors...52
    Service Recommendations for O-Ring Boss Fittings...54
    O-Ring Boss Fittings In Aluminum Housing Service Recommendations—Excavators...56
    Service Recommendations for Flared Connections—Straight or Tapered Threads...59
    Service Recommendations For Flat Face O-Ring Seal Fittings...61
    O-Ring Face Seal Fittings With SAE Inch Hex Nut And Stud End For High Pressure Service Recommendations...63
    O-Ring Face Seal Fittings With Metric Hex Nut And Stud End For Standard Pressure Service Recommendations...65
    O-Ring Face Seal Fittings With Metric Hex Nut And Stud End For High Pressure Service Recommendations...68
    Service Recommendations for Metric Series Four Bolt Flange Fitting...71
    Service Recommendations For Inch Series Four Bolt Flange Fittings...73
    Inch Series Four Bolt Flange Fitting For High Pressure Service Recommendations...75
    Service Recommendations For Non-Restricted Banjo (Adjustable) Fittings...77
    Service Recommendations For O-Ring Boss Fittings With Shoulder...80
    Metric 24° O-Ring Seal DIN 20078 Service Recommendations...83
Section 01: Tracks...87
  Group 0130: Track System...87
    Rock Guards and Chain Guides Remove and Install...90
    Carrier Roller Remove and Install...92
    Carrier Roller Disassemble and Assemble...95
    Metal Face Seals Inspection...98
    Track Roller Remove and Install...100
    Track Roller Disassemble and Assemble...101
    Track Roller Leakage Test...103
    Track Shoe Remove and Install...104
    Lubricated Track Chain (Saw Tooth Master Split Link) Remove and Install...107
    Lubricated Track Chain Disassembly (Turn Bushings and Lubricate Chain)...111
    Lubricated Track Chain Assembly (Turn Bushings and Lubricate Chain)...115
    Lubricated Track Chain Disassemble and Assemble (Turn Pins and Not Lubricate)...124
    Front Idler Remove and Install...131
    Front Idler Disassemble, Inspect, and Assemble...133
    Front Idler Adjustment...136
    Front Idler Oil Level Check...138
    Track Tension Adjuster Remove and Disassemble...140
    Track Tension Adjuster Assemble and Install...142
    Track Idler Recoil Spring Remove and Install...144
    Track Idler Recoil Spring Disassemble and Assemble...146
    Sprocket Remove and Install...152
    Track Frame Remove and Install...154
    Track Frame Disassemble and Assemble...156
    Frame Wear Strips Remove and Install...159
Section 02: Axles and Suspension Systems...161
  Group 0201: Drive Axle Housing and Support...161
    Final Drive Remove and Install...167
  Group 0250: Axle Shaft, Bearings, and Reduction Gear...161
    Final Drive Disassemble and Assemble...188
Section 03: Transmission...204
  Group 0300: Removal and Installation...204
    Hydrostatic Pump Remove and Install...217
    Hydrostatic Motor Remove and Install...229
  Group 0315: Controls Linkage...204
    Transmission Control Lever (TCL) Remove and Install...235
    Transmission Control Lever (TCL) Disassemble and Assemble...237
  Group 0360: Hydrostatic System...204
    Hydrostatic Pumps Disassemble...274
    Hydrostatic Charge Pump Disassemble and Assemble...287
    Pump Displacement Control Valve (PDCV) Disassemble and Assemble...293
    Multi-Function Valve Disassemble and Assemble...297
    Neutral Charge Relief Valve Disassemble and Assemble...300
    Hydrostatic Pump Assemble...301
    Hydrostatic Motor Disassemble...314
    Hydrostatic Motor Assemble...320
    Oil Cooler Thermal Bypass Valve Remove and Install...337
    Hydrostatic Filter Remove and Install...339
    Hydrostatic Filter Disassemble and Assemble...340
    Hydrostatic Reservoir Remove and Install...342
Section 04: Engine...346
  Group 0400: Removal and Installation...346
    Engine Remove and Install...358
Section 05: Engine Auxiliary Systems...369
  Group 0505: Cold Weather Starting Aids...369
    Engine Coolant Heater Remove and Install...373
    Start Aid Remove and Install...376
    Starting Aid Solenoid Remove and Install...378
  Group 0510: Radiator and Fan Shroud...369
    Fan Blade and Shroud Remove and Install...382
    Cooling Package Remove and Install...384
  Group 0515: Engine Speed Control...369
    Decelerator/Brake Pedal Remove and Install...388
    Decelerator/Brake Pedal Disassemble and Assemble...389
  Group 0520: Intake System...369
    Air Cleaner Remove and Install...397
  Group 0530: External Exhaust System...369
    Muffler Remove and Install...399
  Group 0540: Mounting Frame...369
    Engine and Power Train Mounting...402
  Group 0560: External Fuel Supply System...369
    Fuel Tank Remove and Install...406
Section 07: Dampener Drive...408
  Group 0752: Elements...408
    Dampener Drive Remove and Install...411
Section 11: Park Brake...413
  Group 1100: Removal and Installation...413
    Park Brake Valve Remove and Install...415
    Park Brake Remove and Install...416
  Group 1115: Control Linkage...413
    Park Lock Linkage Remove and Install...422
    Park Lock Linkage Disassemble and Assemble...424
  Group 1160: Hydraulic System...413
    Park Brake Valve Disassemble and Assemble...431
    Park Brake Disassemble and Assemble...434
Section 15: Equipment Attaching...439
  Group 1540: Ripper...439
    Ripper Remove and Install...442
Section 18: Operator's Station...444
  Group 1800: Removal and Installation...444
    Cab or ROPS Remove and Install...456
  Group 1810: Operator's Enclosure...444
    Slide Glass Remove and Install...468
    Stationary Glass Remove and Install...470
    Sliding Window Remove and Install...472
    Front Window Wiper Remove and Install...474
    Door Window Wipers Remove and Install...476
    Rear Window Wiper Remove and Install...478
    Window Washer Pumps Remove and Install...480
  Group 1821: Seat and Seat Belt...444
    Standard Seat Remove and Install (Old)...485
    Deluxe Seat Remove and Install...489
    Air Suspension Seat Remove and Install...498
  Group 1830: Heating and Air Conditioning...444
    R134a Refrigerant Cautions...502
    R134a Compressor Oil Charge Check...503
    R134a Compressor Oil Removal...504
    R134a Component Oil Charge...505
    Leakage Testing...507
    R134a Refrigerant Recovery, Recycling and Charging Station Installation Procedure...508
    Recover R134a System...510
    Evacuate R134a System...512
    Charge R134a System...514
    Air Conditioner System Cleaning Procedures...516
    Purge R134a System...517
    Flush R134a System...518
    Evaporator or Heater Core Remove and Install...521
    Expansion Valve Remove and Install...525
    A/C Freeze Switch Remove and Install...526
    Upper Cab Heater Blower Motor and Heater Blower Resistor Remove and Install...527
    Cab Upper Heater Disassemble and Assemble...528
    Cab or ROPS Under Seat Heater Disassemble and Assemble...530
    Receiver-Dryer Remove and Install...533
    Condenser Remove and Install...534
    Compressor Remove and Install...535
    Compressor Clutch Disassemble and Assemble...537
    Clutch Hub Clearance Check...539
    Compressor Manifold Inspect...540
    Compressor Disassemble and Assemble...541
Section 19: Sheet Metal and Styling...545
  Group 1910: Hood and Engine Enclosure...545
    Hood Remove and Install...548
    Hood Support and Engine Side Shields Remove and Install...550
  Group 1921: Grille and Grille Housing...545
    Grille and Grille Housing Removal...555
    Grille and Grille Housing Installation...558
Section 21: Main Hydraulic System...562
  Group 2160: Hydraulic System...562
    Hydraulic Pump Remove and Install...567
    Hydraulic Pump (With Winch Option) Disassemble and Assemble...571
    Hydraulic Pump (Without Winch Option) Disassemble and Assemble...576
    Hydraulic Reservoir Remove and Install (S.N. —243763)...579
    Hydraulic Reservoir Remove and Install (S.N. 243764— )...583
    Hydraulic Reservoir and Hydrostatic Reservoir Cleanout Cover Remove and Install...588
    Hydraulic Reservoir Disassemble and Assemble...592
    Hydraulic Filter Remove and Install...594
    Hydraulic Filter Disassemble and Assemble...595
Section 32: Bulldozer...597
  Group 3201: Blades...597
    Blade Remove and Install (S.N. —178254)...602
    Blade Remove and Install (S.N. 178255— )...606
    Blade Ball and Socket Alignment Procedure...610
    Blade Retainer Split Bearing Installation...612
    Cutting Edges and End Bits Remove and Install...614
  Group 3215: Control Linkage...597
    Hydraulic Control Lever Linkage Remove and Install...618
    Auxiliary Hydraulic Control Lever Linkage Remove and Install...621
  Group 3240: Frames...597
    C-Frame Remove and Install...627
    C-Frame Remove and Install (New)...631
  Group 3260: Hydraulic System...597
    Hydraulic Control Valve Remove and Install...642
    Hydraulic Control Valve Disassemble and Assemble...645
    Hydraulic Control Valve Disassemble and Assemble—IGC...647
    Wiper Seals and Lip Seals on Hydraulic Control Valve Remove and Install...650
    Auxiliary Control Valve Section Disassemble and Assemble...658
    Angle Control Valve Section Disassemble and Assemble...660
    Tilt Control Valve Section Disassemble and Assemble...662
    Lift Control Valve Section Disassemble and Assemble...664
    System and Angle Circuit Relief Valve Disassemble and Assemble...667
    Integrated Grade Control (IGC) Lever Remove and Install...669
    Integrated Grade Control (IGC) Lever Disassemble and Assemble...672
    Tilt Cylinder Remove and Install...674
    Angle Cylinder Remove and Install...676
    Lift Cylinder Remove and Install...678
    Angle, Lift, and Tilt Cylinders Disassemble and Assemble (John Deere 120 Series Cylinders)...680
Section 99: Dealer Fabricated Tools...681
  Group 9900: Dealer Fabricated Tools...681
    DF1041 Track Nut Removal Tool...683
    DF1063 Final Drive Lift Bracket...684
    DFT1087 Track Recoil Spring Disassembly and Assembly Guard Tool...686
    DFT1119 Pump Support...687
    DFT1130 Adapter...688
    DFT1132 Hydrostatic Motor Removal and Installation Tool...689
    DFT1137 Hydrostatic Motor Removal and Installation Tool...690
    DFT1165 Left Hand Hydrostatic Motor Lifting Bracket...691
    DFT1166 Final Drive Lifting Bracket Adapter...692
    DFT1167 Final Drive Lifting Bracket Adapter Spacer...693
    DFT1168 Right Hand Hydrostatic Motor Lifting Bracket...694
    DFT1211 Final Drive Lifting Bracket Adapter...695
    DFT1278 30 mm Wrench with 3/4 in. Drive...696
    DFRW20 Compressor Holding Fixture...697
    ST4920 Track Recoil Spring Disassembly and Assembly Tool...698

John Deere 450J Crawler Dozer Repair Service Manual (TM12275)