John Deere 678 Rotary Harvesting Unit Hay and Forage Technical Service Repair Manual (TM402719) - MJODTM402719.zip
A full-service technical guide covering John Deere Hay and Forage Rotary Harvesting Units 678, packed with everything needed to service, troubleshoot, fix, and overhaul these units the way trained technicians do.
The John Deere Hay and Forage Rotary Harvesting Units 678 Diagnostic and Repair workshop manual contains:
* Numbered table of contents easy to use so that you can find the information you need fast.
* Detailed sub-steps expand on repair procedure information
* Numbered instructions guide you through every repair procedure step by step.
* Troubleshooting and electrical service procedures are combined with detailed wiring diagrams for ease of use.
* Notes, cautions and warnings throughout each chapter pinpoint critical information.
* Bold figure number help you quickly match illustrations with instructions.
* Detailed illustrations, drawings and photos guide you through every procedure.
* Enlarged inset helps you identify and examine parts in detail.
tm402719 - 678 Rotary Harvesting Unit Technical Manual.epub
tm402719 - 678 Rotary Harvesting Unit Technical Manual.pdf
tm402729 - John Deere Mähvorsatz 678 Technische Bedienungsanleitung.epub
tm402729 - John Deere Mähvorsatz 678 Technische Bedienungsanleitung.pdf
Total Pages: 379 pages
File Format: PDF (bookmarked, ToC, Searchable, Printable, high quality)
Language: English / German
TABLE OF CONTENTS
Foreword
Safety
Safety Information
General
Identification View and Description
Fuel, Lubricants, Hydraulic Oil and Coolant
Torques
Capacities
Specifications
Electrical System
Electric Brake
Power Train
Gear Box
Friction Clutches
Transmission - Feed Drums
Transmission - Gathering Drums
U-Jointed Shaft
Hydraulic System
Hydraulic System
Change-Over Valve
Miscellaneous
Outer Folding Sections
Tilt Frame
Feed System
Gathering Drums
Rotors
Feed Drums
Down-Crop Auger with Rotating Crop Divider
Diagnosis
Troubleshooting
Special Tools
Special Tools (Dealer-Fabricated)
Special Tools (Available as Spare Parts)
TABLE OF CONTENTS....1
Section 05: Safety....10
Group 05: Safety Information....10
Recognize Safety Information....12
”Important” Information....13
“Note” - Information....14
Prevent Machine Runaway....15
Prepare for Emergencies....16
Avoid High-Pressure Fluids....17
Remove Paint Before Welding or Heating....18
Avoid Heating Near Pressurized Fluid Lines....19
Work In Ventilated Area....20
Wear Protective Clothing....21
Practice Safe Maintenance....22
Park Machine Safely....23
Use Proper Lifting Equipment....24
Construct Dealer-Made Tools Safely....25
Support Machine Properly....26
Work in Clean Area....27
Illuminate Work Area Safely....28
Service Machines Safely....29
Use Proper Tools....30
Parking and Leaving the Forage Harvester....31
Replace Safety Signs....32
Dispose of Waste Properly....33
Live With Safety....34
Safety Measures on Electronic Control Units....35
Section 10: General....36
Group 00: Identification View and Description....36
Identification View and Description, Summary of References....38
Identification View, 678 Rotary Harvesting Unit....39
Serial Number Plate, 678 Rotary Harvesting Unit....40
Assembly Designations....41
Hanging Points....43
Group 05: Fuel, Lubricants, Hydraulic Oil and Coolant....36
Lubricants, Grease and Gear Oil, Summary of References....45
Grease....46
Transmission Oil....48
Alternative and Synthetic Lubricants....49
Mixing of Lubricants....50
Lubricant Storage....51
Use Genuine John Deere Parts....52
Group 10: Torques....36
Torques, Summary of References....54
Unified Inch Bolt and Screw Torque Values....55
Metric Bolt and Screw Torque Values....57
Hydraulic System Inch Fitting Torque Values....59
Hydraulic System Metric Fitting Torque Values....60
Group 15: Capacities....36
Capacities, Summary of References....63
678 Rotary Harvesting Unit - Transmissions, Capacities....64
Group 20: Specifications....36
Specifications, Summary of References....66
678 Rotary Harvesting Unit - Dimensions....67
678 Rotary Harvesting Unit - Speeds....68
Section 40: Electrical System....69
Group 05: Electric Brake....69
Electric Brake, Summary of References....71
Electric Brake, Specifications....72
Electric Brake, Other Material....73
Transmission with Brakes....74
Brake Function....76
Wiring Diagram of Electric Brake (up to Serial Number 110404)....78
Wiring Diagram of Electric Brake (from Serial Number 110697)....79
Mechanical Brake Actuation, Exploded View....80
Electric Brake Actuation, Exploded View....82
Brake, Cross-Sectional View....83
Remove Brake Lever....85
Install Brake Lever....87
Section 50: Power Train....91
Group 05: Gear Box....91
Gear Box, Summary of References....95
Gear Box, Specifications....96
Gear Box, Other Material....97
Gear Box, Special Tools....98
Remove Gear Box from Rotary Harvesting Unit....99
Install Intermediate Shaft....100
Gear Box, Exploded View (Part 1)....102
Gear Box, Exploded View (Part 2)....104
Recondition Gear Box....106
Disassemble the Output Shaft....108
Remove Shift Quadrant....109
Disassemble the Shift Quadrant....111
Assemble the Shift Quadrant....113
Assemble the Gear Box....117
Assembled Spur Gear with Input Shaft....118
Assembled Spur Gear (Center)....120
Assembled Spur Gear with Output Shaft....122
Install the Gear Box....123
Group 10: Friction Clutches....91
Friction Clutches, Summary of References....126
Friction Clutches, Specifications....127
Friction Clutches, Special Tools....128
General Inspection....129
Remove Friction Clutches from Rotary Harvesting Unit....131
Disassemble the Friction Clutch....133
Change Coolant....135
Check Friction Clutch Torque....136
Install Friction Clutches....138
Group 15: Transmission - Feed Drums....91
Feed Drums, Summary of References....344
Feed Drums, Specifications....345
Feed Drums, Other Material....143
Feed Drums, Special Tools....144
Remove Feed Drum Transmission....145
Separate the Planetary Drive from the Spur Gear Angle Drive....149
Disassemble the Planetary Drive....150
Planetary Drive, Exploded View....157
Assemble the Planetary Drive....159
Disassemble the Spur Gear Angle Drive - LEFT - When Viewed in Direction of Travel....163
Spur Gear Angle Drive, Exploded View - LEFT - When Viewed in Direction of Travel (Part 1)....172
Spur Gear Angle Drive, Exploded View - LEFT - When Viewed in Direction of Travel (Part 2)....174
Assemble the Spur Gear Angle Drive - LEFT - When Viewed in Direction of Travel....176
Disassemble the Spur Gear Angle Drive - RIGHT - When Viewed in Direction of Travel....181
Spur Gear Angle Drive, Exploded View - RIGHT - When Viewed in Direction of Travel (Part 1)....190
Spur Gear Angle Drive, Exploded View - RIGHT - When Viewed in Direction of Travel (Part 2)....192
Assemble the Spur Gear Angle Drive - RIGHT - When Viewed in Direction of Travel....194
Join Spur Gear Angle Drive and Planetary Drive....200
Install Feed Drum Transmission....201
Group 20: Transmission - Gathering Drums....92
Gathering Drums, Summary of References....322
Gathering Drums, Specifications....323
Gathering Drums, Other Material....206
Remove Gathering Drum Transmission....207
Disassemble the Transmission Unit....213
Separate Upper Housing Half from Spur Gear Angle Drive....215
Disassemble Upper Half of Spur Gear Angle Drive Housing....217
Disassemble Lower Half of Spur Gear Angle Drive Housing....221
Spur Gear Angle Drive, Exploded View (Part 1)....227
Spur Gear Angle Drive, Exploded View (Part 2)....229
Spur Gear Angle Drive, Exploded View (Part 3)....231
Outer Spur Gear Angle Drives - Drive for Rotating Crop Divider....233
Drive for Rotating Crop Divider, Exploded View....359
Assemble Lower Half of Spur Gear Angle Drive Housing....237
Assemble Upper Half of Spur Gear Angle Drive Housing....242
Assemble Spur Gear Angle Drive....247
Angle Drive, Exploded View....251
Assemble Angle Drive....253
Assemble Transmission Unit....257
Install Gathering Drum Transmission....258
Group 25: U-Jointed Shaft....93
U-Jointed Shaft, Summary of References....268
U-Jointed Shaft, Special Tools....269
Disassemble the U-Jointed Shaft....270
U-Jointed Shaft, Exploded View....272
Assemble the U-Jointed Shaft....273
Section 70: Hydraulic System....275
Group 05: Hydraulic System....275
Hydraulic System, Summary of References....277
Hydraulic System, Specifications....278
Hydraulic System, Other Material....279
Hydraulic System for Folding In and Out....280
General Repair Information....282
Remove Hydraulic Cylinder....283
Repair Hydraulic Cylinder....284
Remove the Check Valve from the Hydraulic Cylinder....285
Repair the Check Valve of the Hydraulic Cylinder....287
Check Valve Seat and Raise Valve for Damage....288
Pre-Assemble Hydraulic Cylinder....289
Install the Hydraulic Cylinder....290
Group 10: Change-Over Valve....275
Change-Over Valve, Summary of References....292
Check the Change-Over Valve of the Folding Mechanism....293
Section 80: Miscellaneous....294
Group 05: Outer Folding Sections....294
Outer Folding Sections, Summary of References....296
Outer Folding Sections, Specifications....297
Outer Folding Sections, Other Material....298
Remove and Disassemble the Claw Clutches of the Outer Folding Sections....299
Claw Clutch, Exploded View....302
Assemble and Install the Claw Clutches of the Outer Folding Sections....304
Remove Hex. Shaft from the Outer Folding Sections....305
Remove Hex. Shaft from Main Frame....307
Check the Hex. Shaft....308
Install Hex. Shaft on the Outer Folding Sections....309
Install Hex. Shaft on the Main Frame....311
Group 10: Tilt Frame....294
Tilt Frame, Summary of References....314
Tilt Frame, Specifications....315
Remove Tilt Frame from Harvesting Unit....316
Install Tilt Frame on Harvesting Unit....318
Section 100: Feed System....320
Group 05: Gathering Drums....320
Gathering Drums, Summary of References....322
Gathering Drums, Specifications....323
Remove Outer Gathering Drums....324
Install Outer Gathering Drums....326
Remove Inner Gathering Drums....330
Install Inner Gathering Drums....332
Group 10: Rotors....320
Rotors, Summary of References....337
Rotors, Specifications....338
Remove Rotors....339
Install New Blade Segments....340
Install Rotors....342
Group 15: Feed Drums....320
Feed Drums, Summary of References....344
Feed Drums, Specifications....345
Remove Feed Drums....346
Install Feed Drums....349
Feed Drums, Scraper Adjustment....350
Feed Drums, Channel Width Adjustment....351
Group 20: Down-Crop Auger with Rotating Crop Divider....320
Down-Crop Auger with Rotating Crop Divider, Summary of References....353
Remove Rotating Crop Divider V-Belt....354
Install Rotating Crop Divider V-Belt....355
Remove and Install the Rotating Crop Divider....356
Rotating Crop Divider, Exploded View....359
Remove Down-Crop Auger from the Harvesting Unit....361
Install Down-Crop Auger on the Harvesting Unit....363
Section 212: Diagnosis....364
Group 05: Troubleshooting....364
Troubleshooting, Summary of References....366
Troubleshooting, 678 Rotary Harvesting Unit....367
Section 99: Special Tools....369
Group 05: Special Tools (Dealer-Fabricated)....369
DFKM001 - Threaded Rod....371
DFKM002 - Threaded Rod....372
Group 10: Special Tools (Available as Spare Parts)....369
KJD10153 - Puller....374
LCA59507 - Slide Hammer....375
LCA59509 - Internal Puller....376
LCA78440 - Testing Device....377
TABLE OF CONTENTS....1
Section 05: Sicherheit....10
Group 05: Sicherheitsmaßnahmen....10
Warnzeichen erkennen....12
“Wichtig” - Informationen....13
“Hinweis” - Informationen....14
Versehentliches Wegrollen der Maschine vermeiden....15
Vorbereitungen für den Notfall....16
Vorsicht bei Hochdruckflüssigkeiten....17
Vor Schweißarbeiten oder Erhitzen von Teilen Farbe entfernen....18
Hitzeentwicklung im Bereich von Druckleitungen vermeiden....19
Für gute Belüftung des Arbeitsplatzes sorgen....20
Schutzkleidung tragen....21
Sicherheit bei Wartungsarbeiten....22
Sicherheitsmaßnahmen beim Abstellen der Maschine....23
Richtige Ausrüstung zum Anheben von Teilen verwenden....24
Vorsicht bei Selbstanfertigung von Spezialwerkzeugen....25
Maschine unfallsicher unterbauen....26
Arbeitsplatz sauberhalten....27
Sichere Beleuchtung des Arbeitsplatzes....28
Sichere Wartung....29
Werkzeuge richtig handhaben....30
Feldhäcksler abstellen....31
Warnschilder ersetzen....32
Vorschriftsmäßige Beseitigung von Abfällen....33
Sicherheitsmaßnahmen einhalten....34