John Deere 4230 Tractors Technical Manual (TM1056)

Table of Contents:
   GENERAL
      General Tractor Specifications
      Predelivery, Delivery, and After-Sale Services
      Tune-Up
      Lubrication
      Separation
      Specifications and Special Tools
   ENGINE
      General Information and Diagnosis
      Cylinder Head, Valve Train, and Camshaft
      Cylinder Block, Liners, Pistons, and Rods
      Crankshaft, Main Bearings, and Flywheel
      Lubricating System
      Cooling System
      Governor
      Specifications and Special Tools
   FUEL SYSTEM
      Diagnosing Malfunctions
      Air Intake System
      Diesel Fuel System
      Gasoline Fuel System
      Speed Control Linkage
      Specifications and Special Tools
   ELECTRICAL SYSTEM
      Information and Wiring Diagrams
      Delcotron Charging Circuit
      Delco-Remy Starting Circuit
      John Deere Starting Circuit
      Ignition System
      Lighting and Accessory Circuits
      Specifications and Special Tools
   POWER TRAIN
      Regular Clutch
      Perma-Clutch
      Creeper Transmission
      Syncro-Range Transmission
      Quad-Range Transmission
      Power Shift Transmission
      Differential
      Final Drive
      Hi-Crop Final Drive
      PTO, Perma-Clutch
      PTO, Power Shift
      Power Front-Wheel Drive
      Specifications and Special Tools
   STEERING AND BRAKES
      General Information
   HYDRAULIC SYSTEM
      General Information
      General Hydraulic System Tests and Diagnosis
      Main Reservoir, Filters, Valves, and Oil Cooler
      Hydraulic Pumps
      Early Model Power Steering
      Late Model Power Steering
      Power Brakes
      Rockshaft
      Selective Control Valve, Breakaway Couplers, and Remote Cylinders
      Specifications and Special Tools
   MISCELLANEOUS
      Front Axles
      Air Conditioning System
      Heating System
      Specifications