John Deere 1520 Utility Tractor Repair Technical Manual

Table of Content(Repair Technical Manual – TM1012)

    SECTION 10 – GENERAL
Group 5 – Specifications
Group 10 – Predelivery, Delivery, and After-Sale Services
Group 15 – Tune-Up and Adjustment
Group 20 – Lubrication
Group 25 – Separation
SECTION 20 – ENGINE
Group 5 – General Information, Diagnosis, and Tests
Group 10 – Cylinder Head, Valve Train, and Camshaft
Group 15 – Cylinder Block, Liners, Pistons, and Rods
Group 20 – Crankshaft, Main Bearings, and Flywheel
Group 25 – Timing GearTrain
Group 30 – Lubrication System
Group 35 – Cooling System
Group 40 – Governor and Speed Control Linkage
SECTION 30 – FUEL SYSTEM
Group 5 – Diagnosing Malfunctions
Group 10 – Fuel Injection System
Group 15 – Gasoline Fuel System
SECTION 40 – ELECTRICAL SYSTEM
Group 5 – Information and Diagrams
Group 10 – Charging Circit
Group 15 – Starting Circuit
Group 20 – Ignition Circuit
Group 25 – Lighting and Accessory Circuits
SECTION 50 – POWER TRAIN
Group 5 – Clutches
Group 10 – Hi-Lo Shift Unit
Group 15 – Reverser
Group 20 – Collar Shift Transmission
Group 25 – Differential
Group 30 – Final Drive
Group 35 – Continuous and Transmission PTO
Group 40 – Independent PTO
Group 45 – Belt Pulley
SECTION 60 – STEERING AND BRAKES
Group 5 – General Information
SECTION 70 – HYDRAULIC SYSTEM
Group 5 – General Information, Diagnosis and Tests
Group 10 – Miscellaneous Hydraulic Components
Group 15 – Hydraulic Pumps
Group 20 – Steering System
Group 25 – Hydraulic Brakes
Group 30 – Rockshaft System
Group 35 – Selective Control Valve, Breakaway Couplers, and Remote Cylinders
SECTION 80 – MISCELLANEOUS
Group 5 – Front Axle

This Unit of the Service Manual contains maintenance instructions for the Model 1520 Utility 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 Tractor.
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.