John Deere H270 Harvester Head Operation Manual PDF Download

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John Deere H270 Harvester Head Operator’s Manual – PDF DOWNLOAD

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John Deere H270 Harvester Head Operator’s Manual – PDF DOWNLOAD

P/N: OMF073481_UQ
Language: English
Division: Forestry
Product Lines: Harvesting Heads
Publication Type: Operator’s Manuals
Associated Models: H270
Series: H SERIES
Serial: (EJH270X000438-)
Description: OPERATOR’S AND MAINTENANCE MANUAL

IMAGES PREVIEW OF THE MANUAL:

TABLE OF CONTENTS:

John Deere H270 Harvester Head Operator’s Manual – PDF DOWNLOAD

Contents 7
Warranty 9
Standard warranty clauses 9
Standard Warranty 9
Periodic Maintenance 9
Safety – General Precautions 10
General 10
Recognize Safety Information 10
Understand Signal Words 10
Follow Safety Instructions 11
Before Use 12
Safety – Operating Precautions 13
Operating Safety Precautions 13
Before a New Shift 14
Transport by Road 14
Prepare Harvester Head for Storage 15
Safety – Maintenance Precautions 16
General 16
Make Welding Repairs Safely 18
Working with Oils and Chemicals 19
Planning Your Work 20
General 20
Example of How a Map Sketch May Look 22
Thinning 24
General 24
Working Techniques for Thinning 26
Regeneration Harvesting 29
General 29
Working Techniques for Regeneration Harvesting 29
Felling 32
General 32
Stump Height 32
Felling Stage 33
When Felling on Sloping Ground 34
Felling Trees with Large Roots 36
Delimbing and Crosscutting 39
General 39
Maintenance – General 41
General 41
Maintenance Safety Precautions 42
Special Tools 43
Tightening Torques for Bolt Fastenings 46
Oils and Fluids 47
Instructions for Greasing 47
Oil and Fluid Recommendations 48
Periodic Maintenance 49
Maintenance Daily or after Every 10 Hours 49
Maintenance Weekly or after Every 50 Hours 51
Maintenance after Every 1000 Hours 52
Maintenance – Feeding Equipment 53
Feeding Rollers 53
Feeding Roller Motors 54
Maintenance – Saw Equipment 55
Saw Unit Safety 55
Saw Components 56
Description of Operation 57
Hydraulic Pressures and Volyme Flows 57
Chain Saw Maintenance 58
Cold Weather Use 60
Changing the Saw Chain 62
Sharpening the Saw Chain 64
Saw Chain Repair 69
Chain Lubrication System 72
Checking the Chain Lubrication System 73
Chain Tensioning in Conjunction with Sawing 73
Bleeding the Chain Tensioning System 75
Adjusting the Pressure of the Chain Tensioner 76
Saw Chain Troubleshooting 77
Saw Bar Maintenance 84
Changing the Saw Bar 88
Changing the Bar Holder 89
Adjusting the Sensors 90
Saw Bar Troubleshooting 91
Replacing the Tip Sprocket 98
Maintenance – Length Measuring System 100
Replacing the pulse sensor 100
Maintenance – Diameter Measuring System 102
General 102
Checking the Timbermatic™ 300 / Timbermatic™ H-09 Set Values 102
Checking the Diameter Potentiometer 103
Checking the Diameter Potentiometer, Timbermatic™ 10 3G+ 104
Adjustment 105
Demounting the Diameter Sensor, Timbermatic™ 300 / Timbermatic™ H-09 106
Demounting the Diameter Sensor, Timbermatic™ 10 3G+ 108
Mounting the diameter sensor 109
Maintenance – Delimbing Knives 110
Adjustable upper delimbing knife 110
Sharpening 111
Troubleshooting 112
Checklist 112
Troubleshooting 114
Hydraulic System 117
General 117
Hydraulic Components of the Harvester Head 117
Hydraulic Components of the Valve Block 118
Electric Connectors, Valve Block 120
Hydraulic Diagrams 122
Checking and Adjusting Pressures 126
Checking the Settings of the Main Pressure Relief Valve (9) 127
Adjusting the Main Pressure Relief Valve (9) 128
Checking/Adjusting the Pressing Pressure Pilot Valve for Delimbing Knives, Lower Delimbing Knives (31), Upper Delimbing Knives (31) 128
Checking/Adjusting the Feed Roller Pressing Pressure Pilot Valve (31) 130
Checking/Adjusting the Measuring Wheel Pressure Reduce Valve (70) 132
Checking/Adjusting the Pressure Reduce Valve (57) for Feed Forward 132
Adjusting the Pressure of the Automatic Chain Tensioner (96) 133
Pressure Relief Valve (45) of the Harvester Head Lift 134
Pressure Relief Valve (FlashCut) of the Saw Bar Pressing Pressure (option) 135
Electrical System 136
General 136
Control and Measuring System 137
Replacing an Electric Lead in HHM Connectors 138
Connectors in HHM 139
Connectors in MFM 3G+ (option) 143
Wiring Diagrams 146
Optional Equipment – Color Marking Systems 152
Before Use 152
Maintenance 155
Useful Tips 156
When not in Use 157
Optional Equipment – FlashCut 158
Function 158
Technical Data 159
H270 Harvester Head 159

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