John Deere 2520 Row Crop and Hi-Crop Tractors Technical Manual
TM1004
📘 Table of Contents (Repair Service Manual – TM1004)
➡️ SECTION 10 – GENERAL
➡️ Group 5 – Specifications
➡️ Group 10 – Predelivery, Delivery, and After-Sale Services
➡️ Group 15 – Tune-up
➡️ Group 20 – Lubrication
➡️ Group 25 – Separation
➡️ SECTION 20 – ENGINE
➡️ Group 5 – General Information, Diagnosis, and Tests
➡️ Group 10 – Cylinder Head and Camshaft
➡️ Group 15 – Cylinder Block, Liners, Pistons, and Rods
➡️ Group 20 – Crankshaft, Main Bearings, and Flywheel
➡️ Group 25 – Timing Gear Train
➡️ Group 30 – Lubrication System
➡️ Group 35 – Cooling System
➡️ Group 40 – Governor and Speed Control Linkage
➡️ SECTION 30 – FUEL SYSTEMS
➡️ Group 5 – Diagnosing Malfunctions
➡️ Group 10 – Diesel Fuel System
➡️ Group 15 – Gasoline Fuel System
➡️ SECTION 40 – ELECTRICAL SYSTEM
➡️ Group 5 – Information and Wiring Diagrams
➡️ Group 10 – Charging Circuit
➡️ Group 15 – Starting Circuit
➡️ Group 20 – Ignition System
➡️ Group 25 – Lighting and Accessory Circuits
➡️ SECTION 50 – POWER TRAIN
➡️ Group 5 – Syncro-Range Transmission and PTO Clutches
➡️ Group 10 – Syncro-Range Transmission
➡️ Group 15 – Engine Disconnect Clutch
➡️ Group 20 – Power Shift Transmission
➡️ Group 25 – Differential
➡️ Group 30 – Final Drive
➡️ Group 35 – Hi-Crop Final Drive
➡️ Group 40 – Syncro-Range PTO
➡️ Group 45 – Power Shift PTO
➡️ Group 50 – Belt Pulley
➡️ SECTION 60 – STEERING AND BRAKES
➡️ Group 5 – General Information
➡️ SECTION 70 – HYDRAULIC SYSTEM
➡️ Group 5 – General Information, Diagnosis, and Tests
➡️ Group 10 – Main Reservoir, Filters, Valves, Oil Cooler, and Oil Reservoir
➡️ Group 15 – Hydraulic Pumps
➡️ Group 20 – Power Steering
➡️ Group 25 – Power Brakes
➡️ Group 30 – Rockshaft, 3-Point Hitch, and Quik Coupler
➡️ Group 35 – Selective Control Valve, Breakaway Couplers, and Remote Cylinders
➡️ SECTION 80 – MISCELLANEOUS
➡️ Group 5 – Front Axle