John Deere 770C, 770CH & 772CH Motor Graders Operator’s Manual

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John Deere 770C, 770CH & 772CH Motor Graders Operator’s Manual – PDF DOWNLOAD

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John Deere 770C, 770CH & 772CH Motor Graders Operator’s Manual – PDF DOWNLOAD

P/N: OMT184951_PP
Language: English
Division: Construction
Product Lines: Motor Graders
Publication Type: Operator’s Manuals
Associated Models: 770C, 770CH, 772CH
Series: C SERIES

IMAGES PREVIEW OF THE MANUAL:

TABLE OF CONTENTS:

John Deere 770C, 770CH & 772CH Motor Graders Operator’s Manual – PDF DOWNLOAD

Contents 5
Safety 11
Motor Graders 11
Recognize Safety Information 12
Understand Signal Words 12
Follow Safety Instructions 12
Avoid Injury From Rollover Accidents Wear Your Seat Belt Do Not Attempt to Jump Clear of Tipping Machine Serious or Fatal Crushing Injuries Will Result 13
Avoid Injury From Backover Accidents Before Moving Machine, Be Sure All Persons Are Clear of Area Always Be Alert for Bystanders Moving into the Work Area Use Horn or Other Signal to Warn 14
Avoid Injury From Rollaway Accidents To Prevent Rollaway, Always Make Sure Machine Is Properly Secured Before Leaving Operator’s Seat Death or Serious Injury May Result If You Attempt to Mo 15
Inspect Machine 15
Use Handholds and Steps 16
Prevent Machine Runaway 16
Use Seat Belt Properly 16
Maintain Seat Belt 17
Travel Safely 17
Drive Machine Safely 18
Avoid Power Lines 18
Beware of Exhaust Fumes 18
Keep Riders Off Machine 19
Handle Fuel Safely—Avoid Fires 19
Prepare for Emergencies 19
Clean Trash From Machine 20
Protect Against Flying Debris 20
Wear Protective Clothing 20
Protect Against Noise 21
Use Safety Lights and Devices 21
Keep ROPS Installed Properly 22
Warn Others of Service Work 22
Practice Safe Maintenance 23
Support Machine Properly 24
Remove Paint Before Welding or Heating 24
Avoid Heating Near Pressurized Fluid Lines 25
Avoid High Pressure Fluids 25
Clean the Machine Regularly 26
Service Cooling System Safely 26
Store Attachments Safely 26
Dispose of Waste Properly 27
Safety Signs 28
Safety Signs 28
Operator’s Station 38
Front Console 38
Monitor Panel Indicator Lights 39
Monitor Display Window 40
SELECT Button Operation 41
STOP Indicator and Alarm 42
Service Required Indicator 43
Engine Coolant Temperature Gauge 43
Fuel Level Gauge 44
Rear Steer Gauge 44
Engine Oil Pressure Indicator 44
Alternator Voltage Indicator 45
Engine Air Filter Restriction Indicator 45
Brake Oil Pressure Indicator 45
Transmission Oil Filter Restriction Indicator 46
Transmission Oil Temperature Indicator 46
Hydraulic Oil Temperature Indicator 46
Hydraulic Oil Filter Restriction Indicator 47
Hydraulic Front Wheel Drive Charge Pressure Indicator—Front Wheel Drive Machines Only 47
Hydraulic Front Wheel Drive Oil Filter Restriction Indicator—Front Wheel Drive Machines Only 47
Right Turn Signal Indicator 48
Differential Lock Indicator 48
Fasten Seat Belt Indicator 48
Park Brake Indicator 48
Saddle Lock Indicator 49
Check Service Code Indicator 49
Wait to Start Indicator 50
Left Turn Signal Indicator 50
Turn Signal Switch 50
Hazard Signal Switch 51
Monitor Warning Alarm Volume Control 51
Control Levers—Two Hand Blade Lift 51
Control Levers—One Hand Blade Lift 52
Pedals 52
Engine Speed Control and Transmission Control Park Brake Levers 52
Switches 53
Light Switches 53
Lights 54
Transmission Control and Park Brake Lever 54
Adjusting Front Console 55
Adjusting Seat 55
Roof Mounted Heater and Floor Heater 56
Air Conditioner 57
Defroster 57
Operating Front, Lower, and Rear Windshield Wipers and Windshield Washer 58
Defroster Fan 58
Opening Lower Front Windows 58
Cab Door Release 59
Cab Light 59
Console Light 59
Battery Disconnect Switch 60
Radio (If Equipped) 60
Break In 61
Engine Break In Oil 61
After the First 10 Hours 62
After the First 50 Hours 62
After the First 100 Hours 63
Pre Start Inspection 64
Inspect Machine Daily Before Starting 64
Inspect Daily Before Starting 65
Operating the Engine 66
Check Instruments Before Starting 66
Starting the Engine 67
Engine Intake Air Heater And/Or Ether Start Aid Operation 69
Cold Weather Starting—If Equipped with Intake Air Heater and/or Ether Start Aid Operation 72
Using Booster Batteries—24 Volt System 73
Using Coolant Heater—If Equipped 74
Check Instruments After Starting 74
Engine Warm Up 74
Engine Cold Weather Warm Up 75
Stopping the Engine 75
Emergency Stopping 76
Driving the Machine 77
Driving on Public Roads 77
Shifting the Transmission 77
Inching Pedal 77
Travel Speeds 78
Engine Speed Control Lever 78
Accelerator and Decelerator Pedals 79
Transmission Control and Park Brake Lever 79
Parking the Machine 80
Transmission—Limp Home 81
Lock All Compartments 81
Operating the Machine 82
Blade Lift Levers 82
Blade Side Shift Lever 82
Blade Pitch Lever 82
Circle Rotate Lever 83
Circle Side Shift Lever 83
Rear Steer Lever 83
Wheel Lean Lever 84
Front Scarifier Lever—If Equipped, or Rear Mounted Ripper/Scarifier Lever—If Equipped 84
Operating Scarifier and Bulldozer Blade 85
Operating Ripper (On Machines That Also Have a Scarifier) 86
Differential Lock Switch 86
Disengaging and Engaging Lift Arm Locking Pin 87
Moving Blade to Bank Position 88
Maximum Machine Weight 89
Hydraulic Front Wheel Drive (HFWD) Controls—If Equipped 90
Aggressiveness Mode Switch 91
Aggressiveness Mode Manual Mode Operation 92
Methods of Steering 93
Blade Side Thrust 93
Blade Pitch Adjustment 94
Spreading Piles 95
Back Filling 96
Vee Ditching 96
Ditch Cleaning 98
Road Crowning 99
Bank Cutting 99
Slope Work 100
Cul De Sacs 101
Tire Changing Tip 101
Transporting 102
Loading Machine on a Trailer 102
Towing Procedure 104
Fuels and Lubricants 107
Diesel Fuel 107
Lubricity of Diesel Fuel 108
Diesel Fuel Storage 108
Low Sulfur Diesel Fuel Conditioner 109
Do Not Use Galvanized Containers 109
Fuel Tank 110
Diesel Engine Oil, Hydraulic Reservoir And Wheel Motor Oil 111
Transmission, Differential Housing, Tandem Drive, And Circle Drive Gear Box Oil 112
Grease 113
Alternative and Synthetic Lubricants 113
Lubricant Storage 114
Mixing of Lubricants 114
Periodic Maintenance 115
Service Your Machine at Specified Intervals 115
Check the Hour Meter Regularly 115
Use Correct Fuels and Lubricants 115
Prepare Machine for Maintenance 116
Closing Service Doors 117
Maintenance and Repair Record Keeping System 118
OILSCAN PLUS®, COOLSCAN PLUS® and 3 Way Coolant Test Kit 119
Maintenance and Repair Record Keeping System 120
Maintenance—As Required 124
Clean and Tighten Battery Terminals 124
Lubricate Lift Arm Locking Pin Holes 124
Check Blade Wear Inserts 125
Check Blade Lift Cylinder Sockets 125
Check Blade Circle and Draft Frame Wear Inserts 126
Check Tire Pressure 127
Check Starting Fluid Cylinder 129
Check Engine Air Intake Cleaner 129
Check Air Inlet Screen 130
Drain Fuel Tank Sump 130
Belt Tensioner Spring Check 131
Maintenance—Every 10 Hours or Daily 132
Check Hydraulic Reservoir Oil Level 132
Check Transmission Oil Level 132
Check Engine Oil Level 133
Check Engine Coolant Surge Tank Level 134
Maintenance—Every 50 Hours 135
Lubrication Worksheet Machine General 135
Lubrication Worksheet Machine Options 136
Lubricate Blade Pitch Cylinder Pivots 137
Lubricate Lift Arms and Cylinders 138
Lubricate Wheel Lean Tie Rod (Standard Axle) 139
Lubricate Tie Rod Ends (HFWD Axle) 139
Lubricate Steering Cylinder Pivots (Standard Axle) 140
Lubricate Steering Yokes and Cylinder Pivots (HFWD Axle) 140
Lubricate Front Axle Trunnions (HFWD Axle) 141
Lubricate Front Axle Trunnions (Standard Axle) 141
Lubricate Bulldozer Blade—If Equipped 142
Lubricate Front Axle Lean Cylinder Pivots (Standard Axle) 142
Lubricate Front Axle Lean Cylinder Pivots (HFWD Axle) 143
Lubricate Front Axle Lean Pivots (HFWD Axle) 143
Lubricate Front Axle Pivot (HFWD Axle) 144
Lubricate Lean Pivot Casting Pins and Center Axle Oscillating Pin (Standard Axle) 144
Lubricate Draft Frame Ball 145
Lubricate Lift Cylinder Yoke Pivots 145
Lubricate Lift Arm Locking Pin 145
Lubricate Frame Hinge Pivots 146
Lubricate Frame Steering Cylinder Pivots 146
Drain Primary Fuel Filter (Water Separator) 147
Lubricate Front Mounted Scarifier—If Equipped 147
Lubricate Rear Mounted Ripper—If Equipped 148
Maintenance—Every 250 Hours 149
Check Differential Housing Oil Level 149
Change Engine Oil and Replace Filter 149
Check Battery Electrolyte Level and Terminals 151
Check Receiver Dryer Moisture Indicator 152
Clean Cab Fresh Air Filter 153
Grease Fan Drive Shaft 154
Maintenance—Every 500 Hours 155
Replace Transmission Oil Filter 155
Replace Hydraulic Front Wheel Drive Charge Pump Filter—Front Wheel Drive Machines Only 156
Check Circle Drive Gearbox Oil Level 156
Check Brake Accumulator 157
Check Tandem Oil Level 158
Replace Final Fuel Filter 158
Replace Primary Fuel Filter (Water Separator) 159
Replace Hydraulic Oil Filter 159
Add Coolant Conditioner to Surge Tank 160
Check Coolant 161
Maintenance—Every 1000 Hours 162
Replace Differential Housing Oil Filter 162
Change Hydraulic Oil 163
Check Engine Air Intake Hose 165
Adjust Front Wheel Bearings—Machines Without Front Wheel Drive Only 166
Engine Speeds 167
Adjust Engine Speed Linkage 168
770C 168
770C (SN 565080—), 770CH, 772CH 170
Adjust Fuel Shut Off Solenoid (SN —565079) 172
Replacing Engine Air Intake Cleaner Elements 173
Replace HFWD Motor Case Return Filter—Front Wheel Drive Machines Only 174
Replace Unloader Valve (S N —572715) 175
Maintenance—Every 2000 Hours 176
Change Transmission Oil and Clean Transmission Pump Inlet Screen 176
Change Differential Housing Oil 177
Adjust Engine Valve Clearance (Lash) 178
Change Circle Gearbox Oil 181
Lubricate Tandem Pivot Seal 181
Replace Axle Breather Filter 182
Replace Hydraulic Reservoir Breather Filter 182
Clean the Engine Crankcase Ventilation Tube 183
Maintenance—Every 3000 Hours 184
Seat Belt 184
Draining the Cooling System 185
Maintenance—Every 4000 Hours 186
Change Tandem Oil 186
Maintenance 187
Checking Coolant and Air to Air Cooling Hoses 187
Check Turbocharger Clamps 187
Cleaning Radiator, Air Conditioning Condenser—If Equipped, Air to Air Cooler and Hydraulic, Transmission, and Axle Oil Coolers 187
Inspect Vibration Damper 188
Filling the Cooling System 190
Heavy Duty Diesel Engine Coolant 191
Supplemental Coolant Additives 192
Operating in Warm Temperature Climates 192
Additional Information About Diesel Engine Coolants and John Deere LIQUID COOLANT CONDITIONER 193
Testing Diesel Engine Coolant 194
Do Not Service Injection Nozzles 195
Do Not Adjust Injection Pump 195
Cleaning Dusty Primary Element 195
Inspect Element 196
Clean Dust Unloader Valve (S N —572715) 196
Precautions for Alternator and Regulator 197
Service Batteries Carefully 198
Checking Electrolyte Specific Gravity 199
Using Battery Charger 200
Replacing Batteries 200
Removing Batteries 201
Adding 12 Volt Accessories 201
Fuse Panel 202
Fuse (Blade Type) Color Codes 208
Circuit Breakers 208
Welding Procedure 209
Checking Park Start System 210
Checking Draft Ball Pivot Clearance 211
Checking Cylinder Ball and Socket Clearances 211
Measuring Circle Clearance 212
Adjusting Circle Clearance 214
Measure and Adjust Blade Side Shift Clearance 216
Replacing Scarifier Shank 218
Replacing Scarifier Tooth 218
Replacing Ripper Tooth 219
Adjusting Ripper Digging Depth 219
Adjusting Rear Steer Gauge 220
Clean Cab Recirculating Air Filter 220
Changing Reverse Warning Alarm Volume 221
Do Not Service Control Valves, Cylinders, Pumps or Motors 221
Hardware Torque Specifications 221
Unified Inch Bolt and Screw Torque Values 222
Metric Bolt and Screw Torque Values 223
Additional Metric Cap Screw Torque Values 224
Check Oil Lines And Fittings 226
Service Recommendations for O Ring Boss Fittings 227
Service Recommendations For Flat Face O Ring Seal Fittings 229
Service Recommendations For Inch Series Four Bolt Flange Fittings 230
Service Recommendations for Metric Series Four Bolt Flange Fitting 231
Service Recommendations For Flared Connections—Straight or Tapered Threads 232
Operational Checkout 233
Operational Checkout 233
C Grader System Check 233
Monitor Indicator and Display Check 236
Engine Operational Check with Engine Off 238
Engine Operational Check With Engine Running 240
Hydraulic Front Wheel Drive (HFWD) System Check 241
Power Train Operational Checks 245
Hydraulic System Checks 252
Heating and Air Conditioning Operational Checks 258
Heating and Air Conditioning System Operating Checks 260
Heating and Air Conditioning System Performance Checks 263
Cab Component Checks 263
Troubleshooting 274
Using Troubleshooting Charts 274
Diagnose Malfunctions 275
Engine 275
Battery 284
Hydraulic Front Wheel Drive 285
DF180 Powershift Transmission and Hydraulic Related 290
Park Brake 298
Differential 299
Hydraulic System 300
Steering System 304
Service Brakes 306
Air Conditioning Electrical 307
Heater System 309
Historical Service Code Retrieval 310
Fault Code Interpretation 313
Calibrate Tachometer 316
Transmission Controller 318
Calibration 318
Storage 322
Prepare Machine for Storage 322
Monthly Storage Procedure 323
Machine Numbers 325
Record Product Identification Number (PIN) 325
Record Engine Serial Number 325
Record Transmission Serial Number 325
Record Hydraulic Pump Serial Number 325
Specifications 326
Specifications 326
770C, 770CH, and 772CH 326
Drain and Refill Capacities 331
770C, 770CH and 772CH 331
Crime Prevention Tips 332
Help Prevent Crime 332
Record Construction Identification Numbers 332
Keep Proof of Ownership 332
Park Indoors Out of Sight 332
When Parking Outdoors 333
Reduce Vandalism 333
Report Thefts Immediately 334
Checklists 343
Maintenance and Repair Record Keeping System 343
John Deere Service Literature Available 347
Technical Information 347

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