John Deere 9940 Cotton Pickers Technical Manual (TM1356)

Table of Contents:
   INTRODUCTION
   GENERAL
      General Specifications
      Predelivery, Delivery and After-Sale Services
      Tune-Up and Adjustment
      Fuels and Lubricants
   ENGINE REPAIR
      Remove and Install Engine
      Remove and Install Cooling System
   FUEL AND AIR REPAIR
      Remove/Install Air Intake System
      Remove/Install Diesel Fuel System
   ELECTRICAL REPAIR
      Specifications and Special Tools
      Charging Circuit Repair
      Starting Circuit Repair
      Lights, Instruments, and Accessory Circuits Repair
   POWER TRAIN
      Specifications and Special Tools
      Transmission
      Axles and Differential
      Sundstrand Hydrostatic Drive
      Eaton Hydrostatic Drive
   STEERING/BRAKES REPAIR
      Specifications and Special Tools
      Steering
      Brakes
   HYDRAULIC REPAIR
      Specifications and Special Tools
      Reservoir
      Hydraulic Pump
      Main Control Valve
      Hydraulic Cylinders
      Hydraulic Motors
      Height Control
   AXLES AND WHEELS REPAIR
      Specifications
      Guide Axle
      Wheels
   OPERATOR STATION REPAIR
      Specifications and Special Tools
      Air Conditioning System
      Heating System
      Miscellaneous Components
   PICKING UNITS REPAIR
      Specifications and Special Tools
      Picking Units Removal and Installation
      Grid Bars and Pressure Plates
      Spindles and Picker Bars
      Picker Drums, Drive Shafts, and Gears
      Idler Gears and Bearings
      Doffers, Stub Shaft and Drive
      Moistener Columns
      Gear Cases, Universal Joints, and Countershafts
      Picking Unit Cabinets and Corn Tracks
   MOISTENER AND AIR SYSTEMS REPAIR
      Specifications
      Water System
      Air System
   ELECTRICAL OPERATION AND TESTS
      Specifications and Special Tools
      General Information and Diagrams
      Charging Circuit
      Starting Circuit
      Lights, Instruments and Accessory Circuits
   POWER TRAIN OPERATION AND TESTS
      Specifications and Special Tools
      Transmission
      Axles and Differential
      Hydrostatic Drive
   STEERING/BRAKES OPERATION AND TESTS
      Specifications and Special Tools
      Steering
      Brakes
   HYDRAULIC OPERATION AND TESTS
      Specifications and Special Tools
      System Operation and Tests
      Hydraulic Pump
      Main Hydraulic Valve
      Hydraulic Cylinders
      Hydraulic Motors
      Height Control
   OPERATOR STATION OPERATION AND TESTS
      Specifications and Special Tools
      Pressurizer System
      Air Conditioning System Operation
      Air Conditioning System Tests and Diagnosis
      Heating System
   PICKING, MOISTENER, AND AIR SYSTEMS
      Specifications and Special Tools
      Systems Operation and Diagnosis