John Deere 6650 6750 6850 6950 Forage Harvester Diagnosis & Tests Service Manual (TM4631) PDF - MJODTM4631.zip
A full Operation & Test manual, complete with electrical wiring diagrams, covering the John Deere 6650, 6750, 6850, and 6950 Self-Propelled Forage Harvesters (SN.504341-), packed with the technical detail needed to maintain, troubleshoot, and repair these machines the way a professional technician would.
The Operation & Test workshop manual for the John Deere 6650, 6750, 6850, and 6950 Self-Propelled Forage Harvester 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.
TM4631 - John Deere Self-Propelled Forage Harvesters Models 6650, 6750, 6850, 6950 Technical Manual (Diagnosis & Tests).PDF
TM4631 - John Deere Self-Propelled Forage Harvesters Models 6650, 6750, 6850, 6950 Technical Manual (Diagnosis & Tests).epub
Total Pages: 2,356 pages
File Format: PDF/EPUB/MOBI/AZW (PC/Mac/Android/Kindle/iPhone/iPad; bookmarked, ToC, Searchable, Printable)
Language: English
MAIN SECTIONS
Engine
Fuel, Air Intake and Cooling Systems
Electrical System
Power Train
Main Drive Belt Replacement
Bevel Gear Drive
Transmission and Differential
Final Drives
Hydrostatic Drive, Variable Pump
Hydrostatic Drive, Fixed-Displacement Motor
Hydrostatic Drive, Oil Change
Cam Lobe Motor
Brakes, Steering and Rear Axle
Hydraulic System
Hydraulic Pressure Accumulator
Triple Hydraulic Pump
Electromagnetic Control Valve
Reverser Motor
Hydraulic Motor - Discharge Spout
Miscellaneous
Fuel Tank Hood
Central Lubrication System
Operator`s Cab, Air Conditioning System
Control Levers
Cab Ventilation
Cab Window Replacement
R134a Air Conditioning System
Super Comfort Seat
Harvesting Units
Feeding System
Length-of-Cut Transmission
Reverser Motor and Clutch
Electric Clutch
Feed Roll Channel
Feed Roll Assembly
Locking Pawl
Cutterhead Assembly
Knife Sharpening Device
Cutterhead
Bottom and Outlet Bands
Stationary Knife Removal and Installation
Kernel Processor
Power Chute
Discharge Components
General Information
Service Codes
Control Unit
Diagnostic Trouble Codes
ECU Service Codes (Cummins Engine)
Engine
Fuel, Air Intake and Cooling Systems
Electrical System
Preliminary Checks
General Information
Test Equipment
Electrical System Diagrams
Batteries, Starting Motor, Alternator
Safety Switches, Basic Relays
Engine Shut-Off Device
Instruments
Electronic INFOTRAK Monitor
Turning Discharge Spout
Raising/Lowering Discharge Spout
Central Lubrication System
Reel Horizontal Adjustment
Raising Reel
Reel Speed Adjustment
Attaching Trailer
Raising/Lowering Harvesting Unit
Pressure Valves, Trailer Dump
Main Clutch, Reverser
Four-Wheel Drive
Lighting System
Work Lights
Stop Lights, Horn, Electrical Outlet
Beacon Light
Fan, Air Conditioning System
Windshield Wiper/Washer System
Radio, Interior Lighting
Rotary Radiator Screen, Reverse Travel Alarm
Cigarette Lighter, Seat Compressor
Discharge Spout Rinsing System
Discharge Spout Flap Adjustment
Main Electronic System
Metal Detector
Electronic Control Unit
ROW-TRAK System
POWR-SAVR
676 Rotary Harvesting Unit (North America)
Cutterhead Alarm
Power Train
Brakes, Steering, Rear Axle
Hydraulic System
General Information
Electromagnetic Control Valve
Testing Hydraulic System
Header Float System
Operator`s Cab
tm4631 - 6650, 6750, 6850 and 6950 self-propelled forage harvesters (504341- )
Table of Contents
Foreword
Section 05: Safety
Group 05: Safety Information
Live With Safety
Support Machine Properly
Wear Protective Clothing
Prepare for Emergencies
Work in Clean Area
Parking and Leaving the Forage Harvester
Remove Paint Before Welding or Heating
Handle Fluids Safely-Avoid Fires
Prevent Acid Burns
Prevent Battery Explosions
Avoid Heating Near Pressurized Fluid Lines
Illuminate Work Area Safely
Replace Safety Signs
Use Proper Lifting Equipment
Service Tires Safely
Practice Safe Maintenance
Avoid High-Pressure Fluids
Use Proper Tools
Service Machines Safely
Dispose of Waste Properly
Section 10: General Information
Group 05: Fuel, Lubricants and Coolant
Fuel
Handle Fuel Safely-Avoid Fires
Fill the Fuel Tank
Fill Extra Fuel Tank
Diesel Engine Oil
Engine Break-In Oil
Diesel Engine Coolant
Transmission Oil
Transmission and Hydraulic Oil
Grease
Alternative and Synthetic Lubricants
Mixing of Lubricants
Lubricant Storage
Use Genuine John Deere Parts
Group 10: Torque Values
Metric Bolt and Cap Screw Torque Values
Unified Inch Bolt and Cap Screw Torque Values
Group 15: Serial Numbers
Serial Number Plates
Forage Harvester (Product Identification) Type Plate
Product Identification Number
Engine Serial Number - Cummins Engine
Engine Serial Number - Engine Type 6081
Engine Serial Number - Engine Type 6125
Operator's Cab Serial Number
Four Wheel Drive Motor Serial Number
Kernel Processor Serial Number
Power Chute Serial Number
Three-Speed Transmission Serial Number
Final Drive Serial Number
Angled Drive (Main Gearcase) Serial Number
Length-of-Cut Transmission Serial Number
Group 20: Dimensions
Dimensions
Section 20: Engine
Group 05: Engine Removal and Installation
Special or Essential Tools
Specifications
Prior to Removing Engine
Remove Engine
Engine Repair
Rear Engine Mounting
Lateral Engine Mounting
Lateral Engine Mounting (12.5 L)
Rear Engine Mounting (12.5 L)
Section 30: Fuel, Air Intake and Cooling Systems
Group 05: Fuel Tank
General Information
Removing the Fuel Tank
Removing Fuel Gauge Sending Unit
Installing the Fuel Gauge Sending Unit
Fuel Cooler
Replacing the Fuel Cooler
Prior to Removing the Cooling Elements
Removing the Cooling Elements
Installing the Cooling Elements
Group 10: Air Intake System
Air Cleaner and Muffler Assembly (6650)
Air Intake System (6650)
Air Cleaner and Muffler Assembly (6750, 6850)
Air Intake System (6750 and 6850)
Air Cleaner and Muffler Assembly (6950)
Air Intake System (6950)
Intercooler Location (6650, 6750, 6850)
Intercooler
Air Intake System (6950)
Group 15: Engine Cooling System
Engine Coolant
Location of Engine Radiator
Engine Cooling System (6950)
Removing the Radiator
Installing the Radiator
Replacing the Coolant Level Sending Unit
Replacing the Viscous Drive
Checking Belt Tensioner Spring Tension and Belt Wear (John Deere Engines)
Tensioning Water Pump Drive Belt - Cummins Engine
Tensioning Fan Drive Belt - Cummins Engine
Checking Rotary Radiator Screen
Rotary Screen Components
Adjusting the Screen
Drive for Rotary Radiator Screen
Section 40: Electrical System
Group 05: Electrical Connectors
Special Tools
Electrical Repair Tool Kit
Electrical Connector Handling
Disconnecting Electrical Circuit
Replacing Connectors
Insulated and Non-Insulated Connectors
Replacing Small MATE-N-LOC MATE-N-LOK is a trademark of the AMP company. Contacts In Connector Housings
Replacing SURE-SEAL SURE-SEAL is a trademark of ITT Cannon Electric Connector Bodies
Replacing MATE-N-LOC MATE-N-LOC is a trademark of AMP Inc. and CPC CPC is a trademark of AMP Inc. Pin and Socket Contacts
Replacing DEUTSCH DEUTSCH is a trademark of Deutsch Co. Connectors
Install DEUTSCH DEUTSCH is a trademark of the Deutsch Co. Contact
Replace WEATHER PACK WEATHER PACK is a trademark of Packard Electric. Connector
WEATHER PACK WEATHER PACK is a trademark of Packard Electric. Male and Female Connectors
Replacing METRI-PACK METRI-PACK is a trademark of the Packard Electric Co. Connectors
Replacing Schlemmer Schlemmer is a trademark of Josef Schlemmer GmbH. Connectors
Group 10: Electrical System Components
Electronic Boards
Fuse Board - Fuses
Extra Fuses for Cummins ECU
Fuse Board - Relays
Shift Relays (6750 and 6850 Only)
Relay and Diode Board
Engine Oil Pressure Sending Unit B1
Coolant Temperature Sending Unit B2
Reverser Motor Pressure Switch B4
Hydrostatic Oil Temperature Sending Unit B6
Hydraulic Oil Filter Sending Unit B7
Hydrostatic Charge Pressure Sending Unit B8
Air Cleaner Sending Unit B9
Cutterhead Speed Sending Unit B10
Ground Speed Sending Unit B12
Engine Speed Sending Unit B13
Air Conditioning System Temperature Switch B16
Air Conditioning System Low Pressure Switch B17
Air Conditioning System High Pressure Switch B18
Thermostat B19
Main Clutch Pressure Switch B23
Transmission Oil Temperature Sending Unit B25
Sound Sending Units B26 and B27
Fuel Tank Sending Unit B28
Fuel Pressure Sensor B37
Water-In-Fuel Sensor B38
Rotary Radiator Screen Drive Motor M2
Cab Fan M3
Front Windshield Wiper Motor M4
Spout Flap Motor M6
Sharpening Stone Lowering Motor M9
Knife Sharpening Motor M10
Adjusting End Position Stop of Motor (M10)
Stationaryknife and Kernel Processor Adjusting Motors M11, M12, M13, M14
R.H. and L.H. Side Windshield Wiper Motors M15 and M16
Potentiometers R23 and R24
Calibrating Potentiometers R23 and R24
Sending Units for Engine Control Unit (ECU) (6750, 6850)
Electronic Control System Overview, Serial-Number xxxxxx -
Sending Units for Engine Control Unit (ECU) (6950)
Replacing Knock Sensor
Section 50: Power Train
Group 05: Main Drive Belt Replacement
Replacing Main Drive Belt
Idler Roll With Support, Exploded View
Deflector Roll, Exploded View
Adjusting Belt Alignment
Group 10: Bevel Gear Drive
Special Tools
Specifications
Remove Bevel Gear Drive
Remove Disk Clutch
Clutch Assembly
Assembling Disk Clutch
Hub Components
Check Main Clutch
Angled Drive Disassembly
Remove Input Shaft Assembly
Angled Drive Repair
Angled Drive Assembly