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John Deere 4990 Self-Propelled Hay and Forage Windrower Diagnostic and Tests Service Manual (tm1820)

Illustrated Factory Diagnosis and Tests Service Manual for John Deere Self-Propelled Hay and Forage Windrowers Models 4990

This manual contains high quality images, circuit diagrams, diagnostic procedures to help you to diagnostic, troubleshoot and repair your truck. This document is printable, without restrictions, contains searchable text, bookmarks, crosslinks for easy navigation.

This is Diagnostic manual, including electrical and hydraulic wiring diagrams, Repair manual are sold separate.

Language: English
Format: PDF, 1306 pages

Covered models:
  4990

Contents:
  Engine
  Fuel/Air Systems
  Electrical System Diagnosis and Test (Serial No. -163100)
    Electrical Diagrams
    Diagnosing Electrical System Malfunctions
    Power Supply Circuits Tests
    Starting System Tests
    Charging System Tests (120 Amp)
    Ground Speed Control System Diagnostics
    Lighting System Tests
    Platform Control Systems Tests
    Machine Monitor System Tests
    Fuel Control Tests
    Heating and Air Conditioning Tests
    Cab Accessories Circuits Tests
    Air Seat Systems Tests
    Miscellaneous Tests
  Electrical System Diagnosis and Test (Serial Number 163101 - )
    How To Use This Diagnostic Information
    Test And Adjustments
    Air Condition and Heat Diagnostics
    Armrest - Float Pressure Diagnostics
    Armrest - Field/Road Shift (Running Lights) Diagnostics
    Armrest - Platform Engage Diagnostics
    Armrest - Throttle Control Diagnostics
    Auxiliary Power Diagnostics
    Charging Diagnostics
    COMFORT COMMAND Seat Diagnostics
    Gauges - Engine Temperature and Fuel Level Diagnostics
    Horn Diagnostics
    Hydro Handle Diagnostics
    Lighting System Diagnostics
    Park Brake Diagnostics
    Power Distribution Diagnostics
    Radio Diagnostics
    Rotating Wand Diagnostics
    Starting System Diagnostics
    Tachometer - Engine Speed and Hourmeter Diagnostics
    Tachometer - Float Pressure Diagnostics
    Tachometer - Ground Speed/Park Brake Diagnostics
    Tachometer - Overall Diagnostics
    Tachometer - Platform Speed and Hourmeter Diagnostics
    Warning Display Panel
    Alternator Diagnostics
    Engine Air Filter Diagnostics
    Engine Oil Pressure Diagnostics
    Engine Temperature Diagnostics
    Float Pressure Warning Diagnostics
    Hydraulic Oil Filter Diagnostics
    Hydrostatic Charge Pressure Low Diagnostics
    Hydrostatic Oil Temperature Diagnostics
    Low Fuel Diagnostics
    Operator Presence
    Overall Diagnostics
    Park Brake Diagnostics
    Road Shift Engage Light Diagnostics
    Wiper Diagnostics
    Connector Information (end views, numbers, location photos)
  Power Train Diagnosis and Test
  Steering and Brakes Diagnosis and Test
  Hydraulic System Diagnosis and Test
    General Information
    Tests and Adjustments
    General Hydraulic System Diagnostics
    Priority Valve Diagnostics
    Open Center Circuit Diagnostics
    Platform Raise/Lower Diagnostics
    Platform Tilt Diagnostics
    Platform Float System Diagnostics
    Platform Drive Diagnostics
    Auxiliary-Charge Pump Diagnostics
    Component Location
  Operator Station