John Deere 7250 7350 7450 7550 7750 7850 7950 Forage Harvester Repair Service Manual PDF (TM401419) - MJODTM401419.zip
The Complete Repair Service Manual for John Deere 7250, 7350, 7450, 7550, 7750, 7850, 7950 Forage Harvesters (Worldwide Edition) delivers every technical detail you need to keep, fix, and service these machines the way professional technicians do.
This workshop repair service manual for the John Deere Self-Propelled Forage Harvester models 7250, 7350, 7450, 7550, 7750, 7850, and 7950 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.
* 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.
TM401419 - John Deere Self-Propelled Forage Harvesters Models 7250, 7350, 7450, 7550, 7750, 7850, 7950 Technical Manual (Repair).PDF
Total Pages: 2,550 pages
File Format: PDF (PC/Mac/Android/Kindle/iPhone/iPad; bookmarked, ToC, Searchable, Printable)
Language: English
MAIN SECTIONS
Foreword
Version Date
Safety
Safety Information
General Information
Fuel, Lubricants and Coolant
Torque Values
Serial Numbers
Dimensions
Engine
Remove and Install Engine
Fuel, Air Intake and Cooling Systems
Fuel Tank
Air Intake System
Cooling System
Electrical System
Harness and Connector Repair
Electrical System Components
Power Train
Main Drive Belt Replacement
Bevel Gear Drive
Transmission and Differential (Three-Speed Transmission)
Transmission and Differential (ProDrive™ Transmission)
Final Drives
Hydrostatic Drive, Variable Pump (Three-Speed Transmission)
Hydrostatic Drive, Variable Pump (ProDrive™ Transmission)
Hydrostatic Drive, Fixed Displacement Motor (3-Speed Transm.)
Hydrostatic Drive, Variable Displacement Motor (ProDrive™)
Rear-Wheel Drive Axle
Rear-Wheel Drive Axle, Variable Displacement Motor
Brakes, Steering and Rear Axle
Brake Operation (Three-Speed Transmission)
Brake Operation (ProDrive™ Transmission)
Brakes (Three-Speed Transmission)
Brakes (ProDrive™ Transmission)
Hydrostatic Steering
Row Guidance System
Rear Axle
Hydraulic System
Hydraulic Pressure Accumulators
Hydraulic Pumps
Electromagnetic Control Valve
Reverser Motor (Four-Speed LOC)
Hydraulic Motor - Discharge Spout
Hydraulic Motor - Rotary Screen
IVLOC Transmission Motor
IVLOC Transmission Hydrostatic Pump
Miscellaneous
Central Lubrication System
Operator`s Cab, Air-Conditioning System
Control Levers
Cab Ventilation
Operator`s Cab
R134a Air-Conditioning System
Super Comfort Seat
Special Tools
Special Tools (Dealer Fabricated)
Special Tools (Available as Spare Parts)
Harvesting Units
Harvesting Unit Cross Drive
Harvesting Units
Feeding System
Four-Speed Length-Of-Cut Transmission
IVLOC Transmission
Reverser Motor and Clutch (4-Speed LOC Transmission)
Electric Clutch (4-Speed LOC Transmission)
Feed Roll Housing
Feed Roll Assembly
Locking Pawl (4-Speed LOC Transmission)
Cutterhead Assembly
Knife Sharpening Device
Cutterhead
Bottom and Outlet Bands
Stationary Knife Removal and Installation
Kernel Processor
Power Chute
Discharge Components
Discharge Fan
Blower Rotor and Rotor Bearings
Discharge Spout
tm401419 - 7250, 7350, 7450,7550, 7750, 7850 and 7950Self-Propelled ForageHarvesters Repair -: (Worldwide Edition)
Table of Contents
Foreword
Version Date
Section 05: Safety
Group 05: Safety Information
Recognize Safety Information
“Important” - Information
“Note” - Information
Prevent Machine Runaway
Handle Fluids Safely—Avoid Fires
Prevent Battery Explosions
Prepare for Emergencies
Prevent Acid Burns
Avoid High-Pressure Fluids
Service Cooling System Safely
Remove Paint Before Welding or Heating
Avoid Heating Near Pressurized Fluid Lines
Work In Ventilated Area
Wear Protective Clothing
Practice Safe Maintenance
Park Machine Safely
Use Proper Lifting Equipment
Construct Dealer-Made Tools Safely
Support Machine Properly
Work in Clean Area
Illuminate Work Area Safely
Service Machines Safely
Handle Electronic Components and Brackets Safely
Use Proper Tools
Service Tires Safely
Avoid Eye Contact with Radar
Replace Safety Signs
Dispose of Waste Properly
Live With Safety
Safety Measures on Electronic Control Units
Service Accumulator Systems Safely
Section 10: General Information
Group 05: Fuel, Lubricants and Coolant
Diesel Fuel
Handle Fuel Safely—Avoid Fires
Handling and Storing Diesel Fuel
Lubricity of Diesel Fuel
Filling the Fuel Tank
Testing Diesel Fuel
Biodiesel Fuel
Biodiesel Fuel (7950 Only)
Minimizing the Effect of Cold Weather on Diesel Engines
Minimizing the Effect of Cold Weather on Diesel Engines (7950 Only)
Diesel Engine Break-In Oil
Diesel Engine Oil and Filter Service Intervals (7250-7750 With EGR Only)
Diesel Engine Oil and Filter Service Intervals (7250-7850 Without EGR Only)
Diesel Engine Oil (7950 Only)
Diesel Engine Oil and Filter Service Intervals (7950 Only)
Mixing of Lubricants
Oilscan™ and CoolScan™
Alternative and Synthetic Lubricants
Lubricant Storage
Oil Filters
Heavy Duty Diesel Engine Coolant
Supplemental Coolant Additives
Drain Intervals for Diesel Engine Coolant
Additional Information About Diesel Engine Coolants and John Deere LIQUID COOLANT CONDITIONER
Testing Diesel Engine Coolant
Operating in Warm Temperature Climates
Cooling System Capacity
Transmission Oil
Use of Transmission Oil
Transmission and Hydraulic Oil
Use of Transmission and Hydraulic Oil
Brake Fluid for Brake System (Three-Speed Transmission)
Grease
Alternative and Synthetic Lubricants
Mixing of Lubricants
Lubricant Storage
Use Genuine John Deere Parts
Group 10: Torque Values
Metric Bolt and Screw Torque Values
Unified Inch Bolt and Screw Torque Values
Hydraulic System Inch Fitting Torque Values
Hydraulic System Metric Fitting Torques Values
Group 15: Serial Numbers
Serial Numbers
Forage Harvester Type Plate for Europe (Product Identification Up to SN 510523)
Forage HarvesterType Plate for Europe (Product Identification From SN 510524)
Forage Harvester Type Plate for North America (Product Identification Up to SN 510523)
Forage Harvester Type Plate for North America (Product Identification From SN 510524)
Product Identification Number (Europe)
Product Identification Number (North America)
Engine Serial Number — Engine Type 6090 (7250 Only)
Engine Serial Number — Engine Type 6135 (7350-7750)
Engine Serial Number — Cummins (7850 Only)
Engine Serial Number — Cummins (7950 Only)
Operator's Cab Serial Number
Four Wheel Drive Motor Serial Number
Kernel Processor Serial Number
Power Chute Serial Number
Three-Speed Transmission Serial Number
ProDrive Transmission Serial Number
Final Drive Serial Number
Angled Drive (Main Gearcase) Serial Number
Four-Speed Length-of-Cut Transmission Serial Number
IVLOC Transmission Serial Number
IVLOC Transmission Hydrostatic Pump Serial Number (Three-Speed Transmission)
IVLOC Transmission Hydrostatic Pump Serial Number (ProDrive Transmission)
IVLOC Transmission Motor Serial Number
Main Drive Hydrostatic Pump Serial Number (Three-Speed Transmission)
Main Drive Hydrostatic Pump Serial Number (ProDrive Transmission)
Main Drive Motor Serial Number (Three-Speed Transmission)
Main Drive Motor Serial Number (ProDrive Transmission)
Powered Rear Axle Serial Number
Heavy Duty Rear Axle Serial Number
Spout Serial Number
Group 20: Dimensions
Dimensions
Section 20: Engine
Group 05: Remove and Install Engine
Essential or Recommended Tools
Other Material
Specifications
Prepare Machine for Engine Removal
Removing and Installing Engine (7250)
Removing and Installing Engine (7350, 7450, 7550 and 7750)
Removing and Installing Engine (7850)
Removing and Installing Engine (7950)
Section 30: Fuel, Air Intake and Cooling Systems
Group 05: Fuel Tank
Specifications
Fuel System Components - 700 L (185 U.S. gal)
Fuel System Components - 1100 L (290 U.S. gal)
Fuel System Components (7950 Only)
Removing Fuel Tank
Removing Fuel Sending Unit
Group 10: Air Intake System
Specifications
Air Intake System (7250)
Air Intake System (7350)
Air Intake System (7450, 7550 and 7750)
Air Intake System (7850)
Air Intake System (7950)
Prepare Machine for Intercooler Removal
Removing and Installing Intercooler (7250)
Removing and Installing Intercooler (7350, 7450, 7550, 7750 and 7850)
Removing and Installing Intercooler (7950)
Group 15: Cooling System
Specifications
Cooling Package Location
Replacing Coolant Level Sending Unit
Prepare Machine for Radiator and Hydraulic Oil Cooler Removal
Removing and Installing Radiator (7250)
Removing and Installing Radiator (7350, 7450, 7550, 7750 and 7850)
Removing and Installing Radiator (7950)
Removing and Installing Hydraulic Oil Cooler (7250)
Removing and Installing Hydraulic Oil Cooler (7350, 7450, 7550, 7750 and 7850)
Removing and Installing Hydraulic Oil Cooler (7950)
Removing Fuel Cooler
Removing Air Conditioning Condenser
Removing IVLOC Cooler (7950 Only)
Replacing the Viscous Drive (7850 Only)
Checking Belt Tensioner Spring Tension and Belt Wear (7250—7750)
Checking Belt Tensioner Spring Tension and Belt Wear (7850 Only)
Checking Belt Tension and Belt Wear (7950 Only)
Rotary Screen
Removing Suction Blower (7950 Only)
Section 40: Electrical System
Group 05: Harness and Connector Repair
Essential or Recommended Tools
Other Material
Use Electrical Insulating Compound
Using High-Pressure Washers
Connectors
Repair WEATHERPACK WEATHERPACK is a trademark of Packard Electric Connector
Remove Blade Terminals from Connector Body
Repair (Pull Type) METRI-PACK METRI-PACK is a trademark of Delphi Packard Electric Systems Connectors
Repair (Push Type) METRI-PACK Connectors
Repair CPC CPC is a trademark of AMP Inc. , Large MATE-N-LOC MATE-N-LOC is a trademark of AMP Inc. and METRIMATE METRIMATE is a trademark of AMP Inc. Pin Type Connectors
Repair CPC Blade Type Connectors
Repair Small MATE-N-LOC Socket Connector
Repair Small MATE-N-LOC Pin Connector
Repair CINCH Connectors
Repair Relay Panel Connectors
Repair Reel Reversing Valve Connector
Repair HD Series Deutsch Connectors
Repair CINCH Flex Box Connectors
Repair TYCO-AMP Standard Power Timer Connectors
TYCO-AMP Super Seal Connectors
Group 10: Electrical System Components
Essential or Recommended Tools
Specifications
Other Material
Electrical System — Specifications (7250-7850)
Electrical System — Specifications (7950)
Batteries
Battery Switch (7250-7850)
Battery Switch (7950)
Dangers When Handling Batteries
Battery Service
Checking Electrolyte Level
Checking Specific Gravity
Charging Batteries
Installing and Connecting Batteries
Servicing Electronic Control Units
Welding Near Electronic Control Units
Keep Electronic Control Unit Connectors Clean
Starting the Engine by Means of a Booster Battery (7250-7850)
Starting the Engine by Means of a Booster Battery (7950)