John Deere 3940, 3950, 3960 and 3970 Forage Harvesters Technical Manual (TM1203)

Illustrated factory Technical Manual for John Deere Forage Harvesters Models 3940, 3950, 3960 and 3970.

This manual will assist you in diagnosing, and repairing for your forage harvester.
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Covered Models:
   3940
   3950
   3960
   3970

Format: PDF, 491 pages
Language: English
Publication Date: 08 Apr 2002
Table of Contents:
   GENERAL INFORMATION
      Safety
      Specifications
      General Information
      Lubricants
   DRIVE TRAIN
      Diagnosing Malfunctions
      PTO Hookup—Recirculating Ball Slip
      PTO Hookup—Non-Metallic Bushing Type
      PTO Hookup—Grobe Spline Type
      Powershaft
      Bevel Gear Case
      Feed Roll Gear Case
      Feed Roll Drives
   HYDRAULIC SYSTEM
      General Information
      Diagnosing Malfunctions
      Electrohydraulic Valve
      Tongue Position Cylinder
      Hydraulic Shift Cylinders
      Cutterhead Lift System
      Hydraulic Downstop (3940/3960)
      Spout Cap Cylinder
      Spout Control Motor
      Flow Divider Valve
   ELECTRICAL SYSTEM
      Component Location
      System Functional Checks and Diagnosing Malfunctions
      Tests and Adjustments
      Harness Repair
      IRON-GARD™ Metal Detector (3950/3970)
      SPOUT-TRAK™ (3950/3970)
      Downstop and Float Systems (3950/3970)
      ROW-TRAK™ (3950/3970)
      Electrical Diagrams
   CUTTERHEAD ASSEMBLY
      Diagnosing Malfunctions
      Feed Rolls—3940/3960
      Feed Rolls—3950/3970
      Smooth Roll Scraper—Stationary Knife and Adjuster
      Radius and Feed Roll Arms
      Knife Sharpener
      Cutterhead and Bearings
   MISCELLANEOUS
      Auger
      Wheels
      Fan and Spout
   DEALER FABRICATED TOOLS
      Dealer Fabricated Tools
   Index

Covered
Models	3940, 3950, 3960, 3970