John Deere 3020 Row-Crop Tractor Repair Technical Manual (SN. from 123000 -)

Table of Content(Repair Technical Manual – TM1005)
GENERAL
Specifications
Predelivery, Delivery, and After-Sale Services
Tune-up
Lubrication
Separation
ENGINE
General Information and Diagnosis
Cylinder Head and Camshaft
Cylinder Block, Liners, Pistons, and Rods
Crankshaft, Main Bearings, Flywheel, and Balancer
Lubrication System
Cooling System
Governor and Speed Control Linkage
FUEL SYSTEMS
Diagnosing Malfunctions
Diesel Fuel System
Gasoline Fuel System
LP-Gas Fuel System
ELECTRICAL SYSTEM
Information and Wiring Diagrams
Charging Circuit
Starting Circuit
Ignition System
Lighting and Accessory Circuits
POWER TRAIN
Syncro-Range Transmission and PTO Clutches
Syncro-Range Transmission
Engine Disconnect Clutch
Power Shift Transmission
Differential
Final Drive
Hi-Crop Final Drive
Syncro-Range PTO
Power Shift PTO
Belt Pulley
Power Front Wheel Drive
STEERING AND BRAKES
General Information
HYDRAULIC SYSTEM
General Information, Diagnosis, and Tests
Main Reservoir, Filters, Valves, Oil Cooler, and Oil Reservoir
Hydraulic Pumps
Power Steering
Power Brakes
Rockshaft and Implement Hitches
Selective Control Valve, Breakaway Couplers, and Remote Cylinders
MISCELLANEOUS
Conventional Front Axle
Power Front Wheel Drive Axle
This Unit of the Service Manual contains maintenance instructions for the Model 3020 Row-Crop Tractor.
Included are complete instructions for removal, disassembly, inspection, repair, assembly, and installation of all parts and assemblies.
In addition, the manual contains a brief description of the more complicated systems of the tractor and tells how they operate. Dimensions of many new wearing parts are given as an aid in determining when parts replacement is necessary. Tests and adjustments required to keep the tractor operating at full efficiency are explained in detail. Full instructions on preparing a new tractor for delivery to the customer are included.
Use the manual whenever in doubt about correct maintenance procedures. Use it as a text book for new Service Department personnel who are unfamiliar with John Deere Tractors.
Daily use of the manual as a guide for any and all service problems will reduce error and costly delay to the minimum and assure you the best in finished service work.