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John Deere 3940, 3950, 3960, 3970 Forage Harvesters Technical Manual ☆

This is the COMPLETE factory Technical Manual for the John Deere 3940, 3950, 3960, 3970 Forage Harvesters. This manual is very detailed and contains information and data to this model. has specs, diagrams, and actual real photo illustrations, and schemes. which give you complete step by step operations on repair, assembly, disassembly, Diagnosing, servicing, technical maintenance & troubleshooting procedures for your machine.

Models Covered:
John Deere 3940 Forage Harvester
John Deere 3950 Forage Harvester
John Deere 3960 Forage Harvester
John Deere 3970 Forage Harvester

Group 05Safety
Group 10Specifications
Group 15General Information
Group 20Lubricants
Group 10Diagnosing Malfunctions
Group 15PTO HookupRecirculating Ball Slip
Group 16PTO HookupNon-Metallic Bushing Type
Group 17PTO HookupGrobe Spline Type
Group 20Powershaft
Group 25Bevel Gear Case
Group 30Feed Roll Gear Case
Group 35Feed Roll Drives
Group 05General Information
Group 10Diagnosing Malfunctions
Group 15Electrohydraulic Valve
Group 20Tongue Position Cylinder
Group 25Hydraulic Shift Cylinders
Group 30Cutterhead Lift System
Group 35Hydraulic Downstop (3940/3960)
Group 40Spout Cap Cylinder
Group 45Spout Control Motor
Group 50Flow Divider Valve
Group 05Component Location
Group 10System Functional Checks and Diagnosing Malfunctions
Group 15Tests and Adjustments
Group 20Harness Repair
Group 25IRON-GARD Metal Detector (3950/3970)
Group 30SPOUT-TRAK (3950/3970)
Group 35Downstop and Float Systems (3950/3970)
Group 40ROW-TRAK (3950/3970)
Group 45Electrical Diagrams
Group 05Diagnosing Malfunctions
Group 10Feed Rolls3940/3960
Group 11Feed Rolls3950/3970
Group 15Smooth Roll ScraperStationary Knife and Adjuster
Group 20Radius and Feed Roll Arms
Group 25Knife Sharpener
Group 30Cutterhead and Bearings
Group 05Auger
Group 10Wheels
Group 15Fan and Spout
Group 05Dealer Fabricated Tools


Model Specification: John Deere 3940, 3950, 3960, 3970 Forage Harvesters
Publication number: TM1203
Total Pages: 491
File Format: PDF
Requirements: Adobe PDF Reader
Language: English
Compatible: All Versions of Windows & Mac, Linux OS, Iphone, Ipad, Android etc...


This manual is in PDF format, The Technical Manual PDF is Fully Indexed and Bookmarked by Topic. This is an original Adobe document which equals Perfect Quality and Perfect Printing. The PDF can be searched quickly to find what you need to know in every Chapter. You can print the Entire manual or ANY Pages you want to select. You can also Zoom in on any Diagram or Picture to easily SEE EVERY PART.

Save time and money by doing your own repairs! This manual makes any repair job easy to do with very easy to follow step-by-step instructions & pictures on all areas of repair.

This manual is INSTANT DOWNLOAD. It means no shipping cost or waiting for a CD / paper manual to Arrive in the Mail. You will be able to download the file immediatly after payment is submitted. The download link will appear at the checkout page and it will be emailed to you as well.

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File Size 11 megabytes
File Type PDF
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