John Deere 748H Skidder Operator’s Manual – PDF DOWNLOAD

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John Deere 748H Skidder Operator’s Manual – PDF DOWNLOAD

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John Deere 748H Skidder Operator’s Manual – PDF DOWNLOAD

P/N: OMT230121_WQ
Language: English
Division: Forestry
Product Lines: Skidders
Publication Type: Operator’s Manuals
Associated Models: 748H
Series: H SERIES
Serial: -630435

IMAGES PREVIEW OF THE MANUAL:

TABLE OF CONTENTS:

John Deere 748H Skidder Operator’s Manual – PDF DOWNLOAD

Contents 5
Safety—Safety And Operator Conveniences 9
Safety and Operator Convenience Features 9
Safety—General Precautions 10
Information for European Union Directives Compliance 10
Recognize Safety Information 11
Follow Safety Instructions 11
Operate Only If Qualified 11
Wear Protective Equipment 11
Avoid Unauthorized Machine Modifications 12
Inspect Machine 12
Stay Clear of Moving Parts 12
Avoid High-Pressure Oils 12
Avoid High-Pressure Fluids 13
Do Not Use Starting Fluid 13
Work In Ventilated Area 13
Prevent Fires 14
Prevent Battery Explosions 14
Handle Chemical Products Safely 15
Dispose of Waste Properly 15
Prepare for Emergencies 15
Clean Debris from Machine 16
Safety—Operating Precautions 17
Use Steps and Handholds Correctly 17
Start Only From Operator’s Seat 17
Use and Maintain Seat Belt 17
Prevent Unintended Machine Movement 17
Avoid Work Site Hazards 17
Operate Machine Safely 18
Keep Riders Off Machine 18
Avoid Backover Accidents 18
Avoid Machine Tip Over 19
Operating on Slopes 19
Operating or Traveling On Public Roads 20
Inspect and Maintain ROPS 20
Keep the Operator Protective Structure (OPS) in Place 20
Add and Operate Attachments Safely 20
Safety—Maintenance Precautions 22
Park and Prepare for Service Safely 22
Service Tires Safely 22
Service Cooling System Safely 22
Remove Paint Before Welding or Heating 23
Make Welding Repairs Safely 23
Drive Metal Pins Safely 23
Safety—Safety Signs 25
Skidder Safety Signs 25
Replace Safety Signs 27
Operation—Operator’s Station 29
Adjusting Seat 29
Steering Wheel 29
Horn Button 29
Monitor Panel Functions 30
Pedals 32
Levers 32
Switches 33
Dual Mode Steering 34
Work Lights—If Equipped 34
Dome Light 35
Defrosting, Heating, and Air Conditioning Controls 35
Windshield Wiper and Washer 36
Windshield Washer Fluid Tank 36
Removing Operator’s Station Door Window Screens 36
Opening Secondary Exit 36
Operator’s Manual Holder 36
Fire Extinguisher 37
Pressurized Water System—If Equipped 37
Operation—Operating the Machine 39
Inspect Machine Daily Before Starting 39
Engine Break-In Period 39
Starting the Engine 39
Check Monitor Panel 40
Engine Warm-Up 41
Cold Weather Transmission Disconnect Handle—If Equipped 41
Cold Weather Warm-Up 42
Blade Control Lever Operation 42
Winch Control Lever Operation 43
Single Lever Pilot Control Operation 44
Differential Lock Switch 45
Engine Speed Controls 45
Service Brake 46
Transmission Gear Selector 47
Inching Pedal Operation 48
De-clutch Function Operation—(S N 620843— ) 48
Reversing Fan Operation 49
Parking the Machine 49
Lowering Hydraulic Equipment to Ground With Engine Off 50
Fastening Cable to Winch Drum—4000 Series 51
Fastening Cable to Winch Drum—6000 Series 54
Winch Free Spool Drag Adjustment 55
Grapple Head 56
Grapple Dampener 56
Grapple Shock 57
Transporting Grapple—If Equipped 57
Loading Machine on a Trailer 58
Towing Procedure 58
Maintenance—Machine 63
Diesel Fuel 63
Lubricity of Diesel Fuel 63
Handling and Storing Diesel Fuel 63
Biodiesel Fuel 64
Testing Diesel Fuel 65
Minimizing the Effect of Cold Weather on Diesel Engines 65
Alternative and Synthetic Lubricants 66
Diesel Engine Break-In Oil 67
Diesel Engine Oil 67
Diesel Engine Oil and Filter Service Intervals 68
Hydraulic System Oil 69
Transmission, Park Brake, Differential, Cab Tilt Hydraulic Pump 70
Grease 70
Heavy Duty Diesel Engine Coolant 71
Drain Intervals for Diesel Engine Coolant 72
John Deere COOL-GARD™ II COOLANT EXTENDER 73
Supplemental Coolant Additives 73
Operating in Warm Temperature Climates 74
Additional Information About Diesel Engine Coolants and John Dee 74
Testing Diesel Engine Coolant 75
Maintenance—Periodic Maintenance 77
Service Your Machine at Specified Intervals 77
Check the Hour Meter Regularly 77
Fuel Tank 77
Battery Disconnect 77
Prepare Machine for Maintenance 78
Locking Machine Frames 78
Opening the Grille 79
Opening Engine Side Shields 79
Fluid Analysis Program Test Kits and 3-Way Coolant Test Kit 79
Service Intervals 80
Required Parts 82
Maintenance—As Required 85
Clean Debris from Coolers 85
Inspect Serpentine Belt 85
Inspecting and Cleaning Dusty Primary and Secondary Element 85
Check Tire Pressure 86
Check Wheel Bolt Torque 87
Clean Fuel Tank Filler Screen 88
Fill and Charge Pressurized Water System—If Equipped 88
Check Fire Extinguisher Charge 90
Clean Hydraulic Tank Filler Screen 90
Clean Cab Recirculating Air Filter 91
Clean Fresh Air Filter—Air Conditioning 91
Check Coolant 92
Maintenance—Every 10 Hours or Daily 94
Check Coolant Level 94
Check Engine Oil Level 95
Check and Drain Primary Fuel Filter Water Separator 95
Clean Air Cleaner Unloader Valve 96
Grease Frame Hinge Pivots 96
Grease Boom and Arch Cylinder Pins and Arch-to-Frame Pivot—If Eq 97
Grease Dampener, Yoke, and Crosshead Pins—If Equipped 98
Grease Tongs and Tong Cylinders—If Equipped 99
Grease Boom-to-Arch Pivot—If Equipped 100
Check Transmission Oil Level 100
Check Hydraulic System Oil Level 101
Maintenance—Every 100 Hours 103
Grease Stacking Blade and Cylinder Pivots 103
Grease Front Axle Pivots and Front Steering Cylinder Pins 103
Grease Axle Pinion Seals 103
Grease Rear Steering Cylinder Pins 105
Grease Winch Fairlead Rollers 106
Grease Front Axle Drive Shaft U-Joints and Transmission Output S 106
Grease Rear Axle Drive Shaft U-Joints, Telescoping Splines, Supp 107
Grease Winch Drive Shaft U-Joints and Telescoping Splines 107
Grease Engine Drive Shaft U-Joints and Telescoping Splines 108
Maintenance—Initial Service—250 Hours 109
Replace Transmission Oil Filter 109
Replace Hydraulic Oil Filter 109
Replace Reversing Cooling Fan Filter 110
Change Engine Break-in Oil and Replace Filter 110
Change Front Axle Oil 112
Change Rear Axle Oil 114
Maintenance—Every 250 Hours 115
Take Engine Oil Sample 115
Take Hydraulic Oil Sample 115
Maintenance—Every 500 Hours 116
Change Engine Oil and Replace Filter 116
Check Coolant System Radiator, Tubes, Connectors 118
Replace Primary Fuel Filter (Water Separator) 118
Replace Final Fuel Filter 119
Check Brake Accumulator Action 120
Check Rear Axle Oil Level 120
Check Front Axle Oil Level 122
Check Air Intake Hoses 122
Check Battery Electrolyte Level and Terminals 122
Take Fluid Samples 124
Maintenance—Every 1000 Hours 125
Replace Air Cleaner Elements 125
Replace Air Cleaner Unloader Valve 125
Change Front Axle Oil 126
Change Rear Axle Oil 128
Grease Grapple Rotate Bearing—If Equipped 128
Check Coolant 128
Maintenance—Every 2000 Hours 129
Change Hydraulic Oil 129
Replace Hydraulic Oil Filter 130
Reversing Cooling Fan Oil Filter 131
Replace Hydraulic Reservoir Breather Filter 131
Transmission Breather Filter—Replace 132
Change Transmission Oil, Replace Filter, and Clean Suction Scree 132
Replace Transmission Oil Filter 135
Change Winch Oil 136
Inspect Engine Crankshaft Dampener 137
Check and Adjust Valve Lash 137
Maintenance—Every 4000 Hours 138
Replace Engine Crankshaft Dampener 138
Maintenance—Every 6000 Hours 139
Draining the Cooling System 139
Filling the Cooling System 141
Miscellaneous—Machine 144
Check Engine Idle Speeds 144
Drain Final Fuel Filter 144
Clean Crankcase Vent Tube 144
Check Receiver-Dryer Moisture Indicator—If Equipped 144
Hydraulic Cab Tilt Procedure 145
Checking Coolant System 150
Testing the Coolant Level—Protection Level 151
Do Not Service or Adjust Injection Nozzles or Injection Pump 151
Do Not Service Control Valves, Cylinders, Pumps or Motors 152
Bleed Fuel System 152
Precautions for Alternator 152
Handling, Checking and Servicing Batteries Carefully 153
Using Booster Batteries 155
Using Booster Batteries—24-Volt System 156
Using Battery Charger 156
Replacing Batteries 156
Welding On Machine 157
Replacing Fuses 157
Checking Neutral Start System 160
Servicing Air Conditioning System 160
Checking Park Brake 161
Grapple Damper Adjustment 161
Grapple Shock Replace—If Equipped 163
Brake Pedal Adjustment 163
Checking Windshield Regularly 163
Keeping ROPS Installed Properly 164
Hardware Torque Specifications 164
Unified Inch Bolt and Screw Torque Values 164
Metric Bolt and Screw Torque Values 165
Check Oil Lines And Fittings 166
Dual Wheel Installation 167
Miscellaneous—Operational Checkout 168
Complete Machine Operational Checkout 168
Operational Checks—Key Switch ON, Engine Stopped 168
Operational Checks—Key Switch ON, Engine Running 174
Miscellaneous Checks 205
Miscellaneous—Troubleshooting 207
Using Troubleshooting Charts 207
Engine Troubleshooting 207
Electrical System Troubleshooting 211
Transmission and Park Brake Troubleshooting 214
Axle Differential Troubleshooting 218
Service Brakes Troubleshooting 218
Hydraulic System Troubleshooting 218
Steering System Troubleshooting 219
Dual Mode Steering System Troubleshooting 220
Hydraulic Fan Troubleshooting 220
Winch Troubleshooting 220
Air Conditioning System Troubleshooting 221
Heater System Troubleshooting 222
Miscellaneous—Storage 224
Prepare Machine for Storage 224
Monthly Storage Procedure 224
Miscellaneous—Machine Numbers 226
Record Product Identification Number (PIN) 226
Record Engine Serial Number 226
Record Winch Serial Number 226
Record Transmission Serial Number 226
Keep Proof of Ownership 227
Keep Machines Secure 227
Miscellaneous—Specifications 228
748H Cable Skidder—Machine Specifications 228
748H Cable Skidder—Winch Specifications—4000 Series 229
748H Cable Skidder—Winch Specifications—6000 Series 231
748H Cable Skidder—Drain and Refill Capacities 231
748H Grapple Skidder—Machine Dimensions 232
748H Grapple Skidder—Grapple Dimensions 237
748H Grapple Skidder—Machine Specifications 237
748H Grapple Skidder—Winch Specifications—4000 Series 239
748H Grapple Skidder—Winch Specifications—6000 Series 241
748H Grapple Skidder—Drain and Refill Capacities 241
Ground Speeds 242
EC Declaration of Conformity 242
Page Number 5
Section 1-1 9
Section 1-2 10
Section 1-3 17
Section 1-4 22
Section 1-5 25
Section 2-1 29
Section 2-2 39
Section 3-1 63
Section 3-2 77
Section 3-3 85
Section 3-4 94
Section 3-5 103
Section 3-6 109
Section 3-7 115
Section 3-8 116
Section 3-9 125
Section 3-10 129
Section 3-11 138
Section 3-12 139
Section 4-1 144
Section 4-2 168
Section 4-3 207
Section 4-4 224
Section 4-5 226
Section 4-6 228

S.V 03/24