Complete Operator's Manuals for John Deere 750J and 850J Crawler Dozer. It's the same service manual used by dealers that guaranteed to be fully functional and intact without any missing page.

This John Deere 750J and 850J Crawler Dozer 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.

OMT202117 - Crawler Dozer 750J and 850J Operator's Manual.pdf

TABLE OF CONTENTS
OMT202117 - Crawler Dozer 750J (SN —141343)Engine 6068HT058 and 850J (SN —130885) Engine 6081HT006
1. Change Engine Break-In Oil and Filter
T206846A-UN: 850J Shown
LEGEND:
1 - Engine Oil Filter
2 - Fill Tube
Run engine to warm oil. Stop engine.
2. Remove cap screws and remove oil pan access cover (located below engine).
3. Remove drain plug or open drain valve, if equipped, and allow oil to drain into a container. Dispose of waste oil properly.
4. Install drain plug.
5. Turn engine oil filter (1) counterclockwise to remove.
6. Apply thin film of oil to gasket of new filter.
7. Install new filter. Turn filter clockwise by hand until gasket touches mounting surface.
8. Tighten 1/2 turn more.
9. Fill engine with oil at fill tube (2). See Diesel Engine Oil. (Section 3-1.)
...

0-0 Foreword...2
0-1 Emission Control Statement...3
1-1 - Safety-Safety and Operator Convenience...4
  Safety and Operator Convenience Features...5
1-2 - Safety-General Precautions...6
  Recognize Safety Information...7
  Follow Safety Instructions...8
  Operate Only If Qualified...9
  Wear Protective Equipment...10
  Avoid Unauthorized Machine Modifications...11
  Inspect Machine...12
  Stay Clear of Moving Parts...13
  Avoid High-Pressure Fluids...14
  Avoid High-Pressure Oils...15
  Work In Ventilated Area...16
  Prevent Fires...17
  Prevent Battery Explosions...18
  Handle Chemical Products Safely...19
  Clean Debris from Machine...20
  Dispose of Waste Properly...21
  Prepare for Emergencies...22
  Add Cab Guarding For Special Uses...23
1-3 - Safety-Operating Precautions...24
  Use Steps and Handholds Correctly...25
  Start Only From Operator's Seat...26
  Use and Maintain Seat Belt...27
  Prevent Unintended Machine Movement...28
  Avoid Work Site Hazards...29
  Keep Riders Off Machine...30
  Avoid Backover Accidents...31
  Avoid Machine Tip Over and Machine Damage...32
  Add and Operate Attachments Safely...33
1-4 - Safety-Maintenance Precautions...34
  Park and Prepare for Service Safely...35
  Service Cooling System Safely...36
  Remove Paint Before Welding or Heating...37
  Make Welding Repairs Safely...38
  Drive Metal Pins Safely...39
1-5 - Safety-Safety Signs...40
  Replace Safety Signs...41
  Safety Signs...42
2-1 - Operation-Operator's Station...43
  Display Monitor...44
  Display Monitor Functions...46
  Front Console Switch Functions...49
  Monitor Display Unit—Normal Display...50
  Warmup Indicator...52
  Air Conditioner and Heat—If Equipped...53
  Windshield Wiper and Washer Controls...55
  Battery Disconnect Switch...56
  Door Latch...57
  Secondary Exits—Cab Units Only...58
  Cab Windows...59
  Adjusting Seat...60
  Fire Extinguisher Location...61
2-2 - Operation-Operating the Machine...62
  Inspect Machine Daily Before Starting...64
  Check Instruments before Starting...65
  Engine Break-In Period...66
  Starting the Engine...67
  Starting Fluid—Cold Weather Start Aid...70
  Engine Warmup...72
  Cold Weather Warmup...73
  Transmission Control Lever...74
  Driving the Machine...75
  Using Engine Speed Control Dial...77
  Travel Speed Using Transmission Control Lever...78
  Decelerator _ Brake Pedal and Decelerator Mode Switch...79
  Using Park Lock Lever...81
  Hydraulic Enable Switch _ Hydraulic Accumulator Discharge...83
  Stopping the Engine—Normal Shutdown...85
  Stopping the Machine...87
  Parking the Machine...88
  Blade Control Lever—Operation...90
  Changing Blade Pitch...92
  Changing Blade Pitch—Outside Dozer Linkage...93
  Changing Blade Pitch—C-Frame Dozer Linkage...95
  Avoid Track Damage...98
  Extend Undercarriage Life...102
  Loading Machine on a Trailer...106
  Releasing Park Brake to Tow the Machine...118
  Operating on Steep Hills...130
  CAN Monitor Unit (CMU) Main Menu...134
  CAN Monitor Unit (CMU) Main Menu—Codes...138
  CAN Monitor Unit (CMU) Main Menu—Codes—Active Codes...142
  CAN Monitor Unit (CMU) Main Menu—Codes—Stored Codes...146
  CAN Monitor Unit (CMU) Main Menu—Machine Settings...150
  CAN Monitor Unit (CMU) Main Menu—Machine Settings—Job Timer...154
  CAN Monitor Unit (CAN) Main Menu—Machine Settings—Track Info...158
  CAN Monitor Unit (CMU) Main Menu—Machine Settings—Controller Info...162
  CAN Monitor Unit (CMU) Main Menu—Machine Settings—Trans Settings...166
  CAN Monitor Unit (CMU) Main Menu—Machine Settings—Hydraulic Settings (IGC Option)...170
  CAN Monitor Unit (CMU) Main Menu—Machine Settings—Reversing Fan...174
  CAN Monitor Unit (CMU) Main Menu—Machine Settings—Brake Ctrl...178
  CAN Monitor Unit (CMU) Main Menu—Diagnostics...182
  CAN Monitor Unit (CMU) Main Menu—Diagnostics—Live Values...186
  CAN Monitor Unit (CMU) Main Menu—Diagnostics Live Values—Temperatures...190
  CAN Monitor Unit (CMU) Main Menu—Diagnostics Live Values—Pressures...194
  CAN Monitor Unit (CMU) Main Menu—Diagnostics Live Values—Speeds...202
  CAN Monitor Unit (CMU) Main Menu—Monitor Settings...206
  CAN Monitor Unit (CMU) Main Menu—Monitor Settings—Units...210
  CAN Monitor Unit (CMU) Main Menu—Monitor Settings—Backlighting...214
  CAN Monitor Unit (CMU) Main Menu—Monitor Settings—LCD Contrast...218
  CAN Monitor Unit (CMU) Main Menu—Monitor Settings—Monitor Config...222
3-1 - Maintenance-Machine...226
  Diesel Fuel...227
  Lubricity of Diesel Fuel...235
  Handling and Storing Diesel Fuel...239
  Biodiesel Fuel...243
  Testing Diesel Fuel...251
  Minimizing the Effect of Cold Weather on Diesel Engines...255
  Diesel Engine Oil...263
  Diesel Engine Oil and Filter Service Intervals...267
  Alternative and Synthetic Lubricants...275
  System Oil...279
  Transmission and Hydraulic Reservoir Oil...283
  Inner and Outer Final Drive Oil...287
  Track Rollers; Front Idler; Carrier Roller and Track Frame Outer Pivot Oil...291
  Grease...295
  Heavy Duty Diesel Engine Coolant...299
  Drain Intervals for Diesel Engine Coolant...307
  John Deere COOL-GARD™ II Coolant Extender...311
  Supplemental Coolant Additives...315
  Operating in Warm Temperature Climates...319
  Additional Information About Diesel Engine Coolants and John Deere COOL-GARD™ II Coolant Extender...320
  Testing Diesel Engine Coolant...322
3-10 - Maintenance-Every 2000 Hours...323
  Change Hydraulic System Oil and Replace Filter...324
  Change Hydrostatic Transmission Oil and Replace Hydrostatic Charge and Fan Oil Filters...326
  Adjust Engine Valve Lash...328
3-11 - Maintenance-Every 4000 Hours...329
  Replace Engine Crankshaft Dampener...330
3-12 - Maintenance-Every 5000 Hours...331
  Draining the Cooling System...332
  Filling the Cooling System...335
3-2 - Maintenance-Periodic Maintenance...337
  Service Machine at Specified Intervals...338
  Check Hour Meter Regularly...341
  Prepare Machine for Maintenance...344
  Fluid Analysis Program Test Kits and 3-Way Coolant Test Kit...353
  Service Intervals...356
  Required Parts...362
3-3 - Maintenance-As Required...371
  Adjust Track Sag...372
  Check Alternator Belt Tension...381
  Check Track Sag...383
  Check and Adjust Trunnion Bearing Clearance—If Equipped...387
  Check and Adjust Pushbeam Bearing Clearance—If Equipped...389
  Check Air Restriction Indicator...391
  Check and Clean Radiator Core and Oil Cooler Core...392
  Cleaning Fresh Cab Air Filter—If Equipped...395
  Cleaning Cab Air Recirculation Filter—If Equipped...396
  Check Coolant...397
3-4 - Maintenance-Every 10 Hours or Daily...399
  Check Engine Oil Level...400
  Check Coolant Level...402
  Check Transmission Oil Level...403
  Check Hydraulic Oil Level...404
  Grease Outside Dozer (OSD) Linkage...405
  Lubricate C-Frame Dozer Linkage—If Equipped...407
3-5 - Maintenance-Every 100 Hours...410
  Lubricate Right and Left End Crossbar Pivot...411
  Grease Push Beam Lift Cylinder Pivots...412
3-6 - Maintenance-Initial Service - 250 Hours...413
  Change Engine Break-In Oil and Filter...414
3-7 - Maintenance-Every 250 Hours...416
  Check Inner and Outer Final Drive Housings Oil Level...417
  Check Radiator Coolant Level...419
  Check and Adjust Blade Pivot Clearance—If Equipped...421
  Take Engine Oil Sample...423
3-8 - Maintenance-Every 500 Hours...424
  Change Engine Oil and Filter...425
  Replace Primary and Final Fuel Filters—750J...427
  Replace Primary and Final Fuel Filters—850J...429
  Check Battery Electrolyte Level; Clean and Tighten Terminals...431
  Check Air Intake Hose...434
  Take Fluid Samples...435
3-9 - Maintenance-Every 1000 Hours...436
  Clean Engine Crankcase Vent Tube...437
  Change Final Drive Oil...438
  Check Track Frame Pivot Shaft Bushing Oil...440
  Check Coolant...442
4-1 - Miscellaneous-Machine...443
  Replace Air Filter Elements...445
  Checking Coolant Hoses...447
  Servicing the Cooling System...448
  Do Not Service or Adjust Injection Nozzles or Injection Pump...449
  Clean Dust Unloader Valve...450
  Fuel Drain and Shutoff Valve...451
  Discharge Pilot Control System Hydraulic Pressure...452
  Precautions for Alternator and Regulator...453
  Handling; Checking and Servicing Batteries Carefully...454
  Using Battery Charger...457
  Using Booster Batteries—24-Volt System...459
  Replacing Batteries...460
  Removing Batteries...461
  Replacing Fuses...462
  Fuse (Blade-Type) Color Codes...464
  Drain Fuel Filter Sediment—850J...465
  Bleeding Fuel System—750J...466
  Bleeding Fuel System—850J...470
  Check Engine Speeds...474
  Do Not Service Control Valves; Cylinders; Pumps; or Motors...475
  Track Sag General Information...476
  Checking Idlers and Rollers for Oil Leakage...477
  Checking Carrier Roller Oil Level...478
  Cab or ROPS Tilting Procedure...479
  Fluid Sampling Test Ports—If Equipped...481
  Welding Procedure...482
  Checking Fire Extinguisher—If Equipped...483
  Checking Air Conditioner Refrigerant Level—If Equipped...484
  Checking Park Lock Start System...485
  Checking Transmission Start System...486
  Checking Track Shoe Cap Screw Torque...487
  Checking Track Shoe Cap Screw Torque—Master Link...488
  Hardware Torque Specifications...489
  Unified Inch Bolt and Screw Torque Values...490
  Metric Bolt and Screw Torque Values...492
4-2 - Miscellaneous-Operational Checkout...494
  Operational Checkout...495
4-3 - Miscellaneous-Troubleshooting...515
  Troubleshooting Procedure...516
  Engine...517
  Electrical System...524
  Hydraulic System...529
  Hydrostatic Transmission...531
  Air Conditioning...532
  Integrated Grade Control (IGC) System— If Equipped...533
4-4 - Miscellaneous-Storage...536
  Prepare Machine for Storage...537
  Avoid Track Damage...539
  Monthly Storage Procedure...540
4-5 - Miscellaneous-Machine Numbers...542
  Record Product Identification Number (PIN)...543
  Record Engine Serial Number...544
  Keep Proof of Ownership...545
  Keep Machines Secure...546
4-6 - Miscellaneous-Specifications...547
  750J Crawler Dozer Dimensions...549
  750J Crawler Dozer Specifications...550
  750J Crawler Dozer Weights...551
  750J-LT Crawler Dozer Dimensions...552
  750J-LT Crawler Dozer Specifications...553
  750J-LT Crawler Dozer Weights...554
  750J-LGP Crawler Dozer Dimensions...555
  750J-LGP Crawler Dozer Specifications...556
  750J-LGP Crawler Dozer Weights...557
  750J Pushbeam Crawler Dozer Dimensions...558
  750J Pushbeam Crawler Dozer Specifications...559
  750J Pushbeam Crawler Dozer Weights...560
  750J-WT Pushbeam Crawler Dozer Dimensions...561
  750J-WT Pushbeam Crawler Dozer Specifications...562
  750J-WT Pushbeam Crawler Dozer Weights...563
  750J and 750J-LT Crawler Dozer Drain and Refill Capacities...564
  750J-WT and 750J-LGP Crawler Dozer Drain and Refill Capacities...565
  850J-LT Crawler Dozer Dimensions...566
  850J-LT Crawler Dozer Specifications...567
  850J-LT Crawler Dozer Weights...568
  850J-WLT Crawler Dozer Dimensions...569
  850J-WLT Crawler Dozer Specifications...570
  850J-WLT Crawler Dozer Weights...571
  850J-LGP Crawler Dozer Dimensions...572
  850J-LGP Crawler Dozer Specifications...573
  850J-LGP Crawler Dozer Weights...574
  850J Pushbeam Crawler Dozer Dimensions...575
  850J Pushbeam Crawler Dozer Specifications...576
  850J Pushbeam Crawler Dozer Weights...577
  850J-WT Pushbeam Crawler Dozer Dimensions...578
  850J-WT Pushbeam Crawler Dozer Specifications...579
  850J-WT Pushbeam Crawler Dozer Weights...580
  850J-LGP Pushbeam Crawler Dozer Dimensions...581
  850J-LGP Pushbeam Crawler Dozer Specifications...582
  850J-LGP Pushbeam Crawler Dozer Weights...583
  850J Pushbeam and 850J-LT Crawler Dozer Drain and Refill Capacities...584
  850J-WT and 850J-WLT Crawler Dozer Drain and Refill Capacities...585
  850J-LGP PAT and 850J-LGP Pushbeam Crawler Dozer Drain and Refill Capacities...586

John Deere 750J and 850J Crawler Dozer Operator's Manual (OMT202117)