John Deere 844K Loader Operator’s Manual – PDF DOWNLOAD

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John Deere 844K Loader Operator’s Manual – PDF DOWNLOAD

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John Deere 844K Loader Operator’s Manual – PDF DOWNLOAD

• P/N: OMT228004_43
• Language: English
• Division: Construction
• Product Lines: Loaders
• Publication Type: Operator’s Manuals
• Associated Models: 844K
• Serial Range for Engines: (—642007) ENGINES 6135HDW03, 6135HDW01

IMAGES PREVIEW OF THE MANUAL:

TABLE OF CONTENTS:

John Deere 844K Loader Operator’s Manual – PDF DOWNLOAD

Contents 21
Safety—Safety and Operator Conveniences 25
Safety and Operator Convenience Features 25
Safety—General Precautions 26
Recognize Safety Information 26
Follow Safety Instructions 26
Operate Only If Qualified 26
Wear Protective Equipment 27
Avoid Unauthorized Machine Modifications 27
Add Cab Guarding for Special Uses 27
Inspect Machine 28
Stay Clear of Moving Parts 28
Avoid High-Pressure Oils 28
Avoid High-Pressure Fluids 29
Work In Ventilated Area 29
Prevent Fires, Clean Debris From Machine 30
Clean Debris from Machine 30
Prevent Battery Explosions 31
Handle Chemical Products Safely 31
Decommissioning — Proper Recycling and Disposal of Fluids and Components 32
Prepare for Emergencies 32
Safety—Operating Precautions 33
Use Steps and Handholds Correctly 33
Start Only From Operator’s Seat 33
Use and Maintain Seat Belt 33
Prevent Unintended Machine Movement 34
Avoid Work Site Hazards 35
Use Special Care When Operating Loader 36
Keep Riders Off Machine 36
Avoid Backover Accidents 36
Avoid Machine Tip Over and Machine Damage 37
Operating on Slopes 37
Operating or Traveling On Public Roads 38
Inspect and Maintain ROPS 38
Add and Operate Attachments Safely 38
Safety—Maintenance Precautions 39
Park and Prepare for Service Safely 39
Service Cooling System Safely 39
Service Tires Safely 40
Remove Paint Before Welding or Heating 40
Make Welding Repairs Safely 41
Drive Metal Pins Safely 41
Safety—Safety Signs 42
Safety Signs 42
Operation—Operator’s Station 44
Levers—Two Function Hydraulic Control 44
Levers—Three Function Hydraulic Control 45
Levers—Four Function Hydraulic Control 47
Levers—Joystick Steering Control 47
Pedals 48
Advanced Display Unit (ADU) 49
Display Unit Functions 50
Sealed Switch Module (SSM) 52
Switch Module Functions 53
Display Unit—Normal Display 56
Display Unit—Main Menu 57
Display Unit—Main Menu—Codes 58
Display Unit—Main Menu—Codes—Active Codes 58
Display Unit—Main Menu—Codes—Stored Codes 59
Display Unit—Main Menu—Machine Settings 60
Display Unit—Main Menu—Machine Settings—Reverse Fan Cycle 61
Display Unit—Main Menu—Machine Settings—Camera Mode 61
Display Unit—Main Menu—Machine Settings—Job Timer 61
Display Unit—Main Menu—Machine Settings—Stopwatch 61
Display Unit—Main Menu—Machine Settings—Ride Control 62
Display Unit—Main Menu—Machine Settings—Quick Shift 62
Display Unit—Main Menu—Machine Settings—Counters 63
Display Unit—Main Menu—Diagnostics 63
Display Unit—Main Menu—Diagnostics—Machine ID 64
Display Unit—Main Menu—Diagnostics—Battery Monitor 64
Display Unit—Main Menu—Diagnostics—Engine Sensors 64
Display Unit—Main Menu—Diagnostics—Transmission Sensors 65
Display Unit—Main Menu—Diagnostics—Hydraulic Sensors 65
Display Unit—Main Menu—Diagnostics—Machine Sensors 65
Display Unit—Main Menu—Diagnostics—FNR Selector 66
Display Unit—Main Menu—Diagnostics—Cab Switches 66
Display Unit—Main Menu—Diagnostics—Switch Module 66
Display Unit—Main Menu—Diagnostics—Joystick Steering 66
Display Unit—Main Menu—Diagnostics—Tire Pressure—If Equipped 67
Display Unit—Main Menu—Diagnostics—Object Detect—If Equipped 67
Display Unit—Main Menu—Diagnostics—Auto Diff Lock—If Equipped 68
Display Unit—Main Menu—Diagnostics—Payload Scale—If Equipped 68
Display Unit—Main Menu—Payload Scale—If Equipped 69
Display Unit—Main Menu—Payload Scale—Long Total 69
Display Unit—Main Menu—Payload Scale—Display Units 69
Display Unit—Main Menu—Payload Scale—Auto Add 69
Display Unit—Main Menu—Payload Scale—Diagnostics 70
Display Unit—Main Menu—Payload Scale—Setup 70
Display Unit—Main Menu—Monitor Settings 70
Display Unit—Main Menu—Security 71
Display Unit—Main Menu—Security—Security 71
Display Unit—Main Menu—Security—Change Owner PIN 72
Display Unit—Main Menu—Security—Manage Operator PINs 72
Display Unit—Main Menu—Security—Manage Transport PIN 73
Display Unit—Main Menu—Security—Delayed Operator Logout 73
Horn Button 74
Turn Signals 74
Tilt Steering Column Adjustment 75
Joystick Steering Armrest Adjustment— if Equipped 75
Air Conditioner and Heater Operation 76
Opening and Securing Side Door 77
Opening Side Window/Secondary Exit 78
Opening Rear Side Window 78
Seat Adjustment 79
Fire Extinguisher—If Equipped 80
Operation—Operating the Machine 81
Inspect Machine Daily Before Starting 81
Engine Break-In Period 82
Minimizing the Effect of Cold Weather on Diesel Engines 82
Engine Block Heater—If Equipped 83
Check Instruments Before Starting 83
Starting the Engine 84
Starting Fluid (Cold Weather Starting Aid)—If Equipped 86
Warmup 86
Cold Weather Warmup 87
Automatic Idle and Automatic Shutdown 87
Neutral Lock 88
Park Brake Switch 89
Shifting the Transmission 90
Joystick Bucket and Boom Control 92
Two Lever Bucket and Boom Control 93
Auxiliary Control 94
Joystick Steering Control—If Equipped 95
Ride Control—If Equipped 97
Secondary Steering—If Equipped 99
Differential Lock Operation 99
Counter Switch 100
Rear Camera and Radar Object Detection System (RODS)—If Equipped 101
Embedded Payload Scale—If Equipped 103
Security System 105
Boom Height Kickout Adjustment 106
Return-to-Carry Kickout Adjustment 106
Return-to-Dig Adjustment for Z-Bar Linkage 107
Operating Loader Coupler—If Equipped 109
Using the Loader Bucket 110
Backdragging 111
Fork Attachment 112
Operating in Water and Mud 113
Parking the Machine 114
Loading Machine on a Trailer 115
Towing Procedure 117
Lifting the Machine 119
Maintenance—Machine 121
Diesel Fuel 121
Lubricity of Diesel Fuel 122
Handling and Storing Diesel Fuel 122
Biodiesel Fuel 123
Testing Diesel Fuel 124
Minimizing the Effect of Cold Weather on Diesel Engines 125
Low Sulfur Diesel Fuel Conditioner 126
Alternative and Synthetic Lubricants 126
Diesel Engine Break-In™ Oil 126
Diesel Engine Oil—Tier 3 and Stage III A Engines 127
Diesel Engine Oil—Tier 2 and Stage II Engines 128
Diesel Engine Oil and Filter Service Intervals—Tier 3/Stage III A Engine 129
Diesel Engine Oil and Filter Service Intervals—Tier 2/Stage II Engine 130
Transmission, Park Brake, and Axle Oil 131
Axle Gear Lubricant 131
Hydraulic Oil 132
Grease 133
Lubricant Storage 133
Mixing of Lubricants 133
Diesel Engine Coolant (engine with wet sleeve cylinder liners) 134
Drain Intervals for Diesel Engine Coolant 135
John Deere COOL-GARD™ II Coolant Extender 135
Supplemental Coolant Additives 136
Operating in Warm Temperature Climates 136
Additional Information About Diesel Engine Coolants and John Deere COOL-GARD™ II Coolant Extender 137
Testing Diesel Engine Coolant 138
Maintenance—Periodic Maintenance 139
Engine Identification 139
Service Machine at Specified Intervals 142
Check Hour Meter Regularly 142
Prepare Machine for Maintenance 143
Frame Locking Bar 144
Supporting the Boom 145
Engine Service Doors and Side Shields 146
Cooling System Doors 147
Fuel Tank 148
Fluid Analysis Program Test Kits and 3-Way Coolant Test Kit 148
Service Intervals 149
Required Parts 151
Maintenance—As Required 153
Inspect Tires and Check Pressure 153
Tire Pressures 154
Check Wheel Bolt/Nut Torque 157
Inspect Engine Air Cleaner Elements 158
Inspect Air Conditioner Compressor and Alternator Belt 159
Clean Cooler Cores 160
Check Windshield Washer Fluid Level 161
Drain Water and Sediment From Final Fuel Filter 161
Drain Water From Primary Fuel Filter 162
Replace Fast Fill Fuel Breather—If Equipped 162
Drain Water From Auxiliary Fuel Filter—If Equipped 162
Check and Clean or Replace Cab Fresh Air Filter 163
Check and Clean or Replace Cab Recirculating Air Filter 164
Check Rear Camera and Radar Object Detection (ROD) System—If Equipped 165
Check Coolant 166
Maintenance—Every 10 Hours or Daily 167
Check Coolant Level in Surge Tank 167
Check Engine Oil Level 167
Check Hydraulic System Oil Level 168
Check Transmission Oil Level 169
Inspect Outer Pin Seals 170
Maintenance—Every 100 Hours 171
Lubricate Loader Linkage and Cylinder Pivots—Z-Bar Linkage 171
Lubricate Rear Axle Front Oscillating Pivot 172
Maintenance—Initial Service – 250 Hours 173
Drain and Refill Engine Oil and Replace Filter 173
Drain and Refill Front and Rear Axle Oil 174
Replace Axle Oil Filters 175
Maintenance—Every 250 Hours 176
Take Engine Oil Sample 176
Maintenance—Every 500 Hours 177
Check Air Intake Hoses 177
Check Battery Water Level and Terminals 178
Drain and Refill Engine Oil and Replace Filter 180
Replace In-Line Fuel Strainer 181
Replace Primary Fuel Filter 182
Replace Final Fuel Filter 183
Replace Auxiliary Fuel Filter—If Equipped 183
Replace Fast Fill Fuel Breather Filter—If Equipped 184
Replace Hydraulic Reservoir Breather Filter 185
Check Park Brake Oil Level 185
Lubricate Front and Rear Shaft Seals on Park Brake 186
Check Front and Rear Axle Oil Level 186
Check Ride Control Accumulator 187
Take Fluid Samples 187
Maintenance—Every 1000 Hours 188
Replace Engine Air Cleaner Elements 188
Clean Engine Crankcase Vent Tube 189
Lubricate Frame Hinge Pivots 189
Drain and Refill Park Brake Oil 190
Clean Fan Drive Case Drain In-line Screen 191
Replace Axle Oil Filters 193
Check Coolant 193
Maintenance—Every 2000 Hours 194
Replace Outer Pin Seals 194
Drain and Refill Transmission Oil and Replace Filters 194
Drain and Refill Front and Rear Axle Oil 196
Check and Adjust Electronic Injector Preload 196
Check and Adjust Engine Valve Lash 196
Rerun Transmission Clutch Calibration 196
Clean Front and Rear Axle Oil Recirculation Screens—If Equipped 197
Maintenance—Every 4000 Hours 198
Clean Hydraulic Pump Case Drain Screen 198
Clean Hydraulic System Fill Strainer 200
Replace Hydraulic System Return Filters 201
Drain and Refill Hydraulic System Oil 202
Replace Crankshaft Damper 203
Maintenance—Every 5000 Hours 204
Inspect Driveline Damper 204
Maintenance—Every 6000 Hours 205
Drain Cooling System 205
Refill Cooling System 207
Miscellaneous—Machine 208
Tire Removal With Tire Pressure Monitor (TPM) System—If Equipped 208
Check Air Inlet Cover 208
Inspect Fuel Tank Vent Hose and Breather Filter 209
Bleed Fuel System 209
Check Fire Extinguisher—If Equipped 209
Precautions for Alternator and Regulator 210
Handle Batteries Safely 211
Using Booster Batteries—24-Volt System 212
Using Battery Charger 213
Battery Disconnect Switch 214
Replacement Batteries 214
Remove and Install Batteries 215
12-Volt Auxiliary Power Outlet—If Equipped 216
JDLink™ Machine Monitoring System (MMS)—If Equipped 216
Fuse Identification and Replacement 217
Replacing Halogen Bulbs 219
Fluid Sampling Test Ports 220
Air Conditioner System Service 222
Welding On Machine 222
Bleeding Brakes 223
Radiator, Oil Cooler, and Charge Air Cooler External Cleaning 224
Service Recommendations For Snap-To-Connect (STC®) Fittings 225
Do Not Service Control Valves, Cylinders, Pumps, or Motors 226
Replacing Bucket Teeth—TK Series 226
Keep ROPS Installed Properly 226
Hardware Torque Specifications 227
Unified Inch Bolt and Screw Torque Values 228
Metric Bolt and Screw Torque Values 229
Miscellaneous—Operational Checkout 230
Operational Checkout 230
Diagnostic Trouble Code Check 230
Operational Checks—Ignition OFF, Engine OFF Checks 231
Operational Checks—Ignition ON, Engine OFF Checks 232
Operational Checks—Ignition ON, Engine ON Checks 238
Miscellaneous—Troubleshooting 257
Troubleshooting Procedure 257
Engine 258
Transmission 260
Differential And Axle 263
Service Brake 264
Driveline 265
Park Brake 265
Hydraulic System 266
Steering 268
Air Conditioning System 269
Heater System 270
Miscellaneous—Storage 271
Prepare Machine For Storage 271
Monthly Storage Procedure 271
Miscellaneous—Machine Numbers 273
Record Product Identification Number (PIN) 273
Record Engine Serial Number 273
Record Transmission Serial Number 274
Record Hydraulic Pump Serial Number 274
Keep Proof of Ownership 274
Keep Machines Secure 274
Miscellaneous—Specifications 275
Engine Specifications 275
Drain and Refill Capacities 276
Standard Z-Bar Specifications 277
Travel Speeds 278
Page Number 21
Section 1-1 25
Section 1-2 26
Section 1-3 33
Section 1-4 39
Section 1-5 42
Section 2-1 44
Section 2-2 81
Section 3-1 121
Section 3-2 139
Section 3-3 153
Section 3-4 167
Section 3-5 171
Section 3-6 173
Section 3-7 176
Section 3-8 177
Section 3-9 188
Section 3-10 194
Section 3-11 198
Section 3-12 204
Section 3-13 205
Section 4-1 208
Section 4-2 230
Section 4-3 257
Section 4-4 271
Section 4-5 273
Section 4-6 275

S.V 04/24