John Deere 844K Loader Operator's Manual (OMT228004)
Complete Operator's Manual for John Deere 844K Loader, with all the technical information to maintain & operate.
PRODUCT DETAILS:
Total Pages: 543 pages
File Format: PDF (Internal Links, Bookmarked, Table of Contents, Searchable, Printable, high quality)
Language: English
omt228004 - 844K Loader Operator's Manual.pdf
omt228004 - 844K Loader Operator's Manual.epub
MAIN SECTIONS
TABLE OF CONTENTS................1
Section 1-1: Safety—Safety and Operator Conveniences................31
Safety and Operator Convenience Features................32
Section 1-2: Safety—General Precautions................33
Recognize Safety Information................34
Follow Safety Instructions................35
Operate Only If Qualified................36
Wear Protective Equipment................37
Avoid Unauthorized Machine Modifications................38
Add Cab Guarding for Special Uses................39
Inspect Machine................40
Stay Clear of Moving Parts................41
Avoid High-Pressure Oils................42
Avoid High-Pressure Fluids................43
Work In Ventilated Area................44
Prevent Fires................45
Clean Debris from Machine................46
Prevent Battery Explosions................47
Handle Chemical Products Safely................48
Decommissioning — Proper Recycling and Disposal of Fluids and Components................49
Prepare for Emergencies................50
Section 1-3: Safety—Operating Precautions................51
Use Steps and Handholds Correctly................52
Start Only From Operator's Seat................53
Use and Maintain Seat Belt................54
Prevent Unintended Machine Movement................55
Avoid Work Site Hazards................56
Use Special Care When Operating Loader................58
Keep Riders Off Machine................59
Avoid Backover Accidents................60
Avoid Machine Tip Over................61
Operating on Slopes................63
Operating or Traveling On Public Roads................64
Inspect and Maintain ROPS................65
Add and Operate Attachments Safely................66
Section 1-4: Safety—Maintenance Precautions................67
Park and Prepare for Service Safely................68
Service Cooling System Safely................69
Service Tires Safely................70
Remove Paint Before Welding or Heating................71
Make Welding Repairs Safely................72
Drive Metal Pins Safely................73
Section 1-5: Safety—Safety Signs................75
Safety Signs................75
Section 2-1: Operation—Operator’s Station................77
Levers—Two Function Hydraulic Control................79
Levers—Three Function Hydraulic Control................81
Levers—Four Function Hydraulic Control................84
Levers—Joystick Steering Control................85
Pedals................86
Advanced Display Unit (ADU)................87
Display Unit Functions................89
Sealed Switch Module (SSM)................93
Switch Module Functions................95
Display Unit—Normal Display................99
Display Unit—Main Menu................100
Display Unit—Main Menu—Codes................102
Display Unit—Main Menu—Codes—Active Codes................104
Display Unit—Main Menu—Codes—Stored Codes................105
Display Unit—Main Menu—Machine Settings................106
Display Unit—Main Menu—Machine Settings—Reverse Fan Cycle................109
Display Unit—Main Menu—Machine Settings—Camera Mode................110
Display Unit—Main Menu—Machine Settings—Job Timer................111
Display Unit—Main Menu—Machine Settings—Stopwatch................112
Display Unit—Main Menu—Machine Settings—Ride Control................113
Display Unit—Main Menu—Machine Settings—Quick Shift................114
Display Unit—Main Menu—Machine Settings—Counters................115
Display Unit—Main Menu—Diagnostics................116
Display Unit—Main Menu—Diagnostics—Machine ID................118
Display Unit—Main Menu—Diagnostics—Battery Monitor................119
Display Unit—Main Menu—Diagnostics—Engine Sensors................120
Display Unit—Main Menu—Diagnostics—Transmission Sensors................121
Display Unit—Main Menu—Diagnostics—Hydraulic Sensors................122
Display Unit—Main Menu—Diagnostics—Machine Sensors................123
Display Unit—Main Menu—Diagnostics—FNR Selector................124
Display Unit—Main Menu—Diagnostics—Cab Switches................125
Display Unit—Main Menu—Diagnostics—Switch Module................126
Display Unit—Main Menu—Diagnostics—Joystick Steering................509
Display Unit—Main Menu—Diagnostics—Tire Pressure—If Equipped................128
Display Unit—Main Menu—Diagnostics—Object Detect—If Equipped................129
Display Unit—Main Menu—Diagnostics—Auto Diff Lock—If Equipped................130
Display Unit—Main Menu—Diagnostics—Payload Scale—If Equipped................131
Display Unit—Main Menu—Payload Scale—If Equipped................132
Display Unit—Main Menu—Payload Scale—Long Total................133
Display Unit—Main Menu—Payload Scale—Display Units................134
Display Unit—Main Menu—Payload Scale—Auto Add................135
Display Unit—Main Menu—Payload Scale—Diagnostics................136
Display Unit—Main Menu—Payload Scale—Setup................137
Display Unit—Main Menu—Monitor Settings................138
Display Unit—Main Menu—Security................139
Display Unit—Main Menu—Security—Security................141
Display Unit—Main Menu—Security—Change Owner PIN................142
Display Unit—Main Menu—Security—Manage Operator PINs................143
Display Unit—Main Menu—Security—Manage Transport PIN................144
Display Unit—Main Menu—Security—Delayed Operator Logout................146
Horn Button................147
Turn Signals................148
Tilt Steering Column Adjustment................149
Joystick Steering Armrest Adjustment— if Equipped................150
Air Conditioner and Heater Operation................152
Opening and Securing Side Door................154
Opening Side Window/Secondary Exit................156
Opening Rear Side Window................157
Seat Adjustment................158
Fire Extinguisher—If Equipped................160
Section 2-2: Operation—Operating the Machine................161
Inspect Machine Daily Before Starting................163
Engine Break-In Period................165
Minimizing the Effect of Cold Weather on Diesel Engines................243
Engine Block Heater—If Equipped................168
Check Instruments Before Starting................169
Starting the Engine................496
Starting Fluid (Cold Weather Starting Aid)—If Equipped................174
Warmup................176
Cold Weather Warmup................177
Automatic Idle and Automatic Shutdown................178
Neutral Lock................179
Park Brake Switch................180
Shifting the Transmission................498
Joystick Bucket and Boom Control................185
Two Lever Bucket and Boom Control................187
Auxiliary Control................189
Joystick Steering Control—If Equipped................190
Ride Control—If Equipped................194
Secondary Steering—If Equipped................198
Differential Lock Operation................200
Counter Switch................201
Rear Camera and Radar Object Detection System (RODS)—If Equipped................202
Embedded Payload Scale—If Equipped................205
Security System................210
Boom Height Kickout Adjustment................211
Return-to-Carry Kickout Adjustment................212
Return-to-Dig Adjustment for Z-Bar Linkage................213
Operating Loader Coupler—If Equipped................217
Using the Loader Bucket................218
Backdragging................221
Fork Attachment................222
Operating in Water and Mud................224
Parking the Machine................225
Loading Machine on a Trailer................227
Towing Procedure................230
Lifting the Machine................233
Section 3-1: Maintenance—Machine................235
Diesel Fuel................236
Lubricity of Diesel Fuel................238
Handling and Storing Diesel Fuel................239
Biodiesel Fuel................240
Testing Diesel Fuel................242
Minimizing the Effect of Cold Weather on Diesel Engines................243
Low Sulfur Diesel Fuel Conditioner................245
Alternative and Synthetic Lubricants................246
Diesel Engine Break-In™ Oil................247
Diesel Engine Oil—Tier 3 and Stage III A Engines................248
Diesel Engine Oil—Tier 2 and Stage II Engines................250
Diesel Engine Oil and Filter Service Intervals—Tier 3/Stage III A Engine................496
Diesel Engine Oil and Filter Service Intervals—Tier 2/Stage II Engine................496
Transmission and Park Brake Oil................256
Axle Gear Lubricant................257
Hydraulic Oil................258
Grease................260
Lubricant Storage................262
Mixing of Lubricants................263
Diesel Engine Coolant (engine with wet sleeve cylinder liners)................264
Drain Intervals for Diesel Engine Coolant................266
John Deere COOL-GARD™ II Coolant Extender................267
Supplemental Coolant Additives................268
Operating in Warm Temperature Climates................269
Additional Information About Diesel Engine Coolants and John Deere COOL-GARD™ II Coolant Extender................270
Testing Diesel Engine Coolant................272
Section 3-2: Maintenance—Periodic Maintenance................273
Engine Identification................274
Service Machine at Specified Intervals................278
Check Hour Meter Regularly................279
Prepare Machine for Maintenance................280
Frame Locking Bar................283
Supporting the Boom................284
Engine Service Doors and Side Shields................285
Cooling System Doors................287
Fuel Tank................289
Fluid Analysis Program Test Kits and 3-Way Coolant Test Kit................290
Service Intervals................291
Required Parts................294
Section 3-3: Maintenance—As Required................297
Inspect Tires and Check Pressure................298
Tire Pressures................301
Check Wheel Bolt/Nut Torque................306
Inspect Engine Air Cleaner Elements................307
Inspect Air Conditioner Compressor and Alternator Belt................310
Clean Cooler Cores................312
Check Windshield Washer Fluid Level................314
Drain Water and Sediment From Final Fuel Filter................315
Drain Water From Primary Fuel Filter................316
Replace Fast Fill Fuel Breather—If Equipped................317
Drain Water From Auxiliary Fuel Filter—If Equipped................318
Check and Clean or Replace Cab Fresh Air Filter................319
Check and Clean or Replace Cab Recirculating Air Filter................321
Check Rear Camera and Radar Object Detection (ROD) System—If Equipped................323
Check Coolant................382
Section 3-4: Maintenance—Every 10 Hours or Daily................327
Check Coolant Level in Surge Tank................328
Check Engine Oil Level................329
Check Hydraulic System Oil Level................330
Check Transmission Oil Level................331
Inspect Outer Pin Seals................333
Section 3-5: Maintenance—Every 100 Hours................335
Lubricate Loader Linkage and Cylinder Pivots—Z-Bar Linkage................336
Lubricate Rear Axle Front Oscillating Pivot................338
Section 3-6: Maintenance—Initial Service - 250 Hours................339
Drain and Refill Engine Oil and Replace Filter................353
Drain and Refill Front and Rear Axle Oil................388
Replace Axle Oil Filters................381
Section 3-7: Maintenance—Every 250 Hours................345
Take Engine Oil Sample................346
Section 3-8: Maintenance—Every 500 Hours................347
Check Air Intake Hoses................348
Check Battery Water Level and Terminals................349
Drain and Refill Engine Oil and Replace Filter................353
Replace In-Line Fuel Strainer................355
Replace Primary Fuel Filter................356
Replace Final Fuel Filter................358
Replace Auxiliary Fuel Filter—If Equipped................360
Replace Fast Fill Fuel Breather Filter—If Equipped................362
Replace Hydraulic Reservoir Breather Filter................363
Check Park Brake Oil Level................364
Lubricate Front and Rear Shaft Seals on Park Brake................505
Check Front and Rear Axle Oil Level................366
Check Ride Control Accumulator................367
Take Fluid Samples................370
Section 3-9: Maintenance—Every 1000 Hours................371
Replace Engine Air Cleaner Elements................372
Clean Engine Crankcase Vent Tube................374
Lubricate Frame Hinge Pivots................375
Drain and Refill Park Brake Oil................376
Clean Fan Drive Case Drain In-line Screen................377
Replace Axle Oil Filters................381
Check Coolant................382
Section 3-10: Maintenance—Every 2000 Hours................383
Replace Outer Pin Seals................384
Drain and Refill Transmission Oil and Replace Filters................385
Drain and Refill Front and Rear Axle Oil................388
Check and Adjust Electronic Injector Preload................390
Check and Adjust Engine Valve Lash................391
Rerun Transmission Clutch Calibration................392
Clean Front and Rear Axle Oil Recirculation Screens—If Equipped................393
Section 3-11: Maintenance—Every 4000 Hours................394
Clean Hydraulic Pump Case Drain Screen................395
Clean Hydraulic System Fill Strainer................399
Replace Hydraulic System Return Filters................400
Drain and Refill Hydraulic System Oil................402
Replace Crankshaft Damper................405
Section 3-12: Maintenance—Every 5000 Hours................406
Inspect Driveline Damper................407
Section 3-13: Maintenance—Every 6000 Hours................408
Drain Cooling System................409
Refill Cooling System................411
Section 4-1: Miscellaneous—Machine................413
Tire Removal With Tire Pressure Monitor (TPM) System—If Equipped................414
Check Air Inlet Cover................415
Inspect Fuel Tank Vent Hose and Breather Filter................416
Bleed Fuel System................417
Check Fire Extinguisher—If Equipped................418
Precautions for Alternator and Regulator................419
Handle Batteries Safely................420
Using Booster Batteries—24-Volt System................422
Using Battery Charger................424
Battery Disconnect Switch................426
Replacement Batteries................427
Remove and Install Batteries................428
12-Volt Auxiliary Power Outlet—If Equipped................413
JDLink™ Machine Monitoring System (MMS)—If Equipped................432
Fuse Identification and Replacement................433
Replacing Halogen Bulbs................437
Fluid Sampling Test Ports................439
Air Conditioner System Service................441
Welding On Machine................442
Bleeding Brakes................443
Radiator, Oil Cooler, and Charge Air Cooler External Cleaning................445
Service Recommendations For Snap-To-Connect (STC®) Fittings................447
Do Not Service Control Valves, Cylinders, Pumps, or Motors................449
Replacing Bucket Teeth—TK Series................450
Keep ROPS Installed Properly................451
Hardware Torque Specifications................452
Unified Inch Bolt and Screw Torque Values................453
Metric Bolt and Screw Torque Values................455
Section 4-2: Miscellaneous—Operational Checkout................458
Operational Checkout................458
Section 4-3: Miscellaneous—Troubleshooting................494
Troubleshooting Procedure................495
Engine................496
Transmission................498
Differential And Axle................501
Service Brake................503
Driveline................504
Park Brake................505
Hydraulic System................506
Steering................509
Air Conditioning System................510
Heater System................512
Section 4-4: Miscellaneous—Storage................513
Prepare Machine For Storage................514
Monthly Storage Procedure................516
Section 4-5: Miscellaneous—Machine Numbers................518
Record Product Identification Number (PIN)................519
Record Engine Serial Number................520
Record Transmission Serial Number................521
Record Hydraulic Pump Serial Number................522
Keep Proof of Ownership................523
Keep Machines Secure................524
Section 4-6: Miscellaneous—Specifications................525
Engine Specifications................526
Drain and Refill Capacities................528
Standard Z-Bar Specifications................529
Travel Speeds................531
John Deere 844K Loader Operator's Manual (OMT228004)
