John Deere 20″ STT Disc Saw Felling Head Operation Manual PDF

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John Deere 20” STT DISC SAW FELLING HEAD Operator’s Manual OMF286569 – PDF DOWNLOAD

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John Deere 20” STT DISC SAW FELLING HEAD Operator’s Manual OMF286569 – PDF DOWNLOAD

P/N: OMF286569_SJ
Language: English
Division: Forestry
Product Lines: Felling Heads
Publication Type: Operator’s Manuals
Associated Models: 20 INCH
Serial: 950001 – 980952

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TABLE OF CONTENTS:

John Deere 20” STT DISC SAW FELLING HEAD Operator’s Manual OMF286569 – PDF DOWNLOAD

Section 1 – Introduction 7
1 1 Foreword 8
1 2 Model and Serial Number Record 9
1 3 Non-approved Field Product Changes 10
Section 2 – Warranty 11
2 1 Warranty Certificate 12
Section 3 – Safety Rules 13
3 1 General 14
3 2 Safety Symbol 14
3 3 Understanding Signal Words 14
3 4 General Safety Precautions 15
3 5 Operating Safety Precautions 18
3 6 Servicing Safety Precautions 19
3 7 Fire Prevention 22
Section 4 – Description 23
4 1 Nomenclature 24
4 1 1 20″ Felling Head (Drive to Tree) 24
4 2 Decal Application 25
4 2 1 20″ Drive to Tree Decal Location 25
4 3 Saw Drive Components 26
4 4 Saw Drive Description 27
4 5 Disc Saw Blade Description 28
4 5 1 Serial Number Location 28
4 5 2 Curved Carbide Tipped Blade 28
4 5 3 Hardened Tooth Blade 28
4 6 Disc Saw Blade and Tooth Data 29
4 7 Stop Plate – Tilt Angle 31
4 7 1 Stop Plate Description 31
4 7 2 Stop Plate Adjustment 31
Section 5 – Operation 33
5 1 Basic Operation 34
5 1 1 Principle of Operation 34
5 1 2 Blade Feeding Speed 34
5 1 3 General Method of Operation 35
5 1 4 Stopping The Disc Saw Blade 36
5 2 Operating Instructions 37
5 2 1 20″ Felling Head (Drive to Tree) 37
Section 6 – Lubrication and Maintenance 39
6 1 Maintenance Schedule 40
6 2 Maintenance Procedures 41
6 2 1 General 41
6 2 2 Tools Required 42
6 2 3 Maintenance – First 25 Hours 42
6 2 4 Maintenance – 8 Hours 48
6 2 5 Maintenance – 175 Hours 51
6 2 6 Maintenance – 500 Hours 51
6 3 Unscheduled Maintenance 52
6 3 1 Disc Saw Blade Inspection 52
6 3 1 1 Saw Housing Restriction Inspection 53
6 3 2 Saw Tooth Replacement 54
6 3 3 Disc Saw Blade Removal 55
6 3 4 Disc Saw Blade Installation 58
6 3 5 Driveshaft Components 60
6 3 6 Driveshaft Removal 61
6 3 7 Driveshaft Assembly 66
6 3 8 Check Saw Shaft End Play 73
6 3 9 Check All Hydraulic Hoses and Fittings 78
6 4 Fluids and Lubricants 79
6 4 1 Recommended Hydraulic System Fluids 79
Section 7 – Hydraulic System 81
7 1 Start-up Procedure 82
7 1 1 Initial Pump & Motor Start-up 82
7 2 Pressure Setting 83
7 2 1 Saw Circuit Pressure Setting 83
7 2 2 Begin of Stroke Adjustment 84
7 2 3 Saw Speed Adjustment 85
7 3 Saw Motor Cross Section and Schematic 86
Section 8 – Electrical System 87
8 1 Saw Speed Sense Equipment 88
8 2 Saw Speed Tachometer 90
Section 9 – Troubleshooting 91
9 1 Disc Saw Blade Stalling 92
9 1 1 Operator Technique 92
9 1 2 Disc Saw Blade Maintenance 92
9 1 3 Hydraulic 93
9 1 4 Can’t Obtain Maximum Blade Speed 94
Section 10 – Specifications 95
10 1 Saw Head Dimensions 96
10 2 Specifications 97
10 2 1 General 97
10 2 2 Service Specifications By Model 98
Section 11 – Miscellaneous 101
11 1 Measurement Conversions 102
11 1 1 Miscellaneous Conversions 103
11 1 2 Metric and Imperial Unit Expressions 103
11 2 Wood Measurement Equivalents 104
11 3 Weights of Commercially Important Woods 105
11 4 General Bolt Torque Values 106
Section 12 – Index 107
Alphabetical Index 107

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