John Deere 3940, 3950, 3960, 3970 Forage Harvesters TM1203 Technical Manual PDF

This technical manual contains detailed repair information, instruction manual, service instructions, troubleshoot and other service information for John Deere forage harvesters 3940, 3950, 3960 and 3970.
Technical manual includes detailed schematics, pictures and diagrams, which help to get a detailed description of all the systems of harvesters JD, using which the user can determine the installation location details, etc.
This manual is written for an experienced technician.
This technical manual comes in PDF format, includes 491 pages. We recommend to use Adobe PDF Reader, to be sure all images / graphics will display correctly.

CONTENTS:

• SECTION 10—GENERAL INFORMATION
  • Group 05—Safety
  • Group 10—Specifications
  • Group 15—General Information
  • Group 20—Lubricants
• SECTION 20—DRIVE TRAIN
  • Group 10—Diagnosing Malfunctions
  • Group 15—PTO Hookup—Recirculating Ball Slip
  • Group 16—PTO Hookup—Non-Metallic Bushing Type
  • Group 17—PTO Hookup—Grobe Spline Type
  • Group 20—Powershaft
  • Group 25—Bevel Gear Case
  • Group 30—Feed Roll Gear Case
  • Group 35—Feed Roll Drives
• SECTION 30—HYDRAULIC SYSTEM
  • Group 05—General Information
  • Group 10—Diagnosing Malfunctions
  • Group 15—Electrohydraulic Valve
  • Group 20—Tongue Position Cylinder
  • Group 25—Hydraulic Shift Cylinders
  • Group 30—Cutterhead Lift System
  • Group 35—Hydraulic Downstop (3940/3960)
  • Group 40—Spout Cap Cylinder
  • Group 45—Spout Control Motor
  • Group 50—Flow Divider Valve
• SECTION 40—ELECTRICAL SYSTEM
  • Group 05—Component Location
  • Group 10—System Functional Checks and Diagnosing Malfunctions
  • Group 15—Tests and Adjustments
  • Group 20—Harness Repair
  • Group 25—IRON-GARD™ Metal Detector (3950/3970)
  • Group 30—SPOUT-TRAK™ (3950/3970)
  • Group 35—Downstop and Float Systems (3950/3970)
  • Group 40—ROW-TRAK™ (3950/3970)
  • Group 45—Electrical Diagrams
• SECTION 50—CUTTERHEAD ASSEMBLY
  • Group 05—Diagnosing Malfunctions
  • Group 10—Feed Rolls—3940/3960
  • Group 11—Feed Rolls—3950/3970
  • Group 15—Smooth Roll Scraper—Stationary Knife and Adjuster
  • Group 20—Radius and Feed Roll Arms
  • Group 25—Knife Sharpener
  • Group 30—Cutterhead and Bearings
• SECTION 60—MISCELLANEOUS
  • Group 05—Auger
  • Group 10—Wheels
  • Group 15—Fan and Spout
• SECTION 99—DEALER FABRICATED TOOLS
  • Group 05—Dealer Fabricated Tools