John Deere 4990 Self-Propelled Windrower Service Repair Manual (TM1819 & TM1820)

Table of Content (Diagnosis and Tests Manual – TM1820 )

SECTION 210—Safety Information Level Diagnostics
Group 05—Safety
Group 15J—Horn Diagnostics
Group 15K—Hydro Handle – Raise/Lower Diagnostics

SECTION 220—Engine Diagnostics
Group 10—Diagnostic Information
Group 15L—Hydro Handle – Reel/Platform Speed Diagnostic

SECTION 230—Fuel/Air Systems
Group 10—Diagnostic Information
Group 15M—Hydro Handle – Platform Tilt Diagnostics
Group 15N—Lighting System – Dome and Console Light Diagnostics

SECTION 240—Electrical System Diagnosis and Test (Serial No. —163100)
Group 05—Theory of Operation
Group 10—System Information
Group 15—Electrical Diagrams
Group 20—Diagnosing Electrical System Malfunctions
Group 25—Power Supply Circuits Tests
Group 30—Starting System Tests
Group 35—Charging System Tests (120 Amp)
Group 40—Ground Speed Control System Diagnostics
Group 45—Lighting System Tests
Group 50—Platform Control Systems Tests
Group 55—Machine Monitor System Tests
Group 60—Fuel Control Tests
Group 65—Heating and Air Conditioning Tests
Group 70—Cab Accessories Circuits Tests
Group 75—Air Seat Systems Tests
Group 80—Miscellaneous Tests

SECTION 241—Electrical System Diagnosis and Test (Serial Number 163101 — )
Group 05—How To Use This Diagnostic Information
Group 10—Test And Adjustments
Group 15A—Air Condition and Heat Diagnostics
Group 15B—Armrest – Float Pressure Diagnostics
Group 15C—Armrest – Field/Road Shift (Running Lights) Diagnostics
Group 15D—Armrest – Platform Engage Diagnostics
Group 15E—Armrest – Throttle Control Diagnostics
Group 15F—Auxiliary Power Diagnostics
Group 15G—Charging Diagnostics
Group 15H—COMFORT COMMAND Seat Diagnostics
Group 15I—Gauges – Engine Temperature and Fuel Level Diagnostics
Group 15J—Horn Diagnostics
Group 15K—Hydro Handle – Raise/Lower Diagnostics
Group 15L—Hydro Handle – Reel/Platform Speed Diagnostic
Group 15M—Hydro Handle – Platform Tilt Diagnostics
Group 15N—Lighting System – Dome and Console Light Diagnostics
Group 15O—Lighting System – Field Lights Diagnostics
Group 15P—Lighting System – Hazard Lights Diagnostics
Group 15Q—Lighting System – Overall Diagnostic
Group 15R—Lighting System – Road/Running Lights Diagnostics
Group 15S—Lighting System – Turn Signal Diagnostics
Group 15T—Lighting System – Work Lights Diagnostics
Group 15U—Park Brake Diagnostics
Group 15V—Power Distribution Diagnostics
Group 15W—Radio Diagnostics
Group 15X—Rotating Wand Diagnostics
Group 15Y—Starting System Diagnostics
Group 15Z—Tachometer – Engine Speed and Hourmeter Diagnostics
Group 15AA—Tachometer – Float Pressure Diagnostics
Group 15AB—Tachometer – Ground Speed/Park Brake Diagnostics
Group 15AC—Tachometer – Overall Diagnostics
Group 15AD—Tachometer – Platform Speed and Hourmeter Diagnostics
Group 15AE—Warning Display Panel – Alternator Diagnostics
Group 15AF—Warning Display Panel – Engine Air Filter Diagnostics
Group 15AG—Warning Display Panel – Engine Oil Pressure Diagnostics
Group 15AH—Warning Display Panel – Engine Temperature Diagnostics
Group 15AI—Warning Display Panel – Float Pressure Warning Diagnostics
Group 15AJ—Warning Display Panel – Hydraulic Oil Filter Diagnostics
Group 15AK—Warning Display Panel – Hydrostatic Charge Pressure Low Diagnostics
Group 15AL—Warning Display Panel – Hydrostatic Oil Temperature Diagnostics
Group 15AM—Warning Display Panel – Low Fuel Diagnostics
Group 15AN—Warning Display Panel – Operator Presence Diagnostics
Group 15AO—Warning Display Panel – Overall Diagnostics
Group 15AP—Warning Display Panel – Park Brake Diagnostics
Group 15AQ—Warning Display Panel – Road Shift Engage Light Diagnostics
Group 15AR—Wiper Diagnostics
Group 20—Connector Information (end views, numbers, location photos)

SECTION 250—Power Train Diagnosis and Test
Group 05—General Information
Group 10—Tests and Adjustments
Group 15A—Power Train Diagnostics
Group 15B—Range Shift Diagnostics
Group 15C—Steering and Brake Release Diagnostics
Group 15D—Final Drive Diagnostics
Group 20—Component Location

SECTION 260—Steering and Brakes Diagnosis and Test
Group 05—General
Group 10—Tests and Adjustments
Group 15A—Steering System/Ground Speed Diagnostics
Group 15B—Park Brake Diagnostics

SECTION 270—Hydraulic System Diagnosis and Test
Group 05—General Information
Group 10—Tests and Adjustments
Group 15A—General Hydraulic System Diagnostics
Group 15B—Priority Valve Diagnostics
Group 15C—Open Center Circuit Diagnostics
Group 15D—Platform Raise/Lower Diagnostics
Group 15E—Platform Tilt Diagnostics
Group 15F—Platform Float System Diagnostics
Group 15G—Platform Drive Diagnostics
Group 15H—Auxiliary-Charge Pump Diagnostics
Group 20—Component Location

SECTION 290—Operator Station (Serial No. —163100)
Group 00—General Information
Group 05—System Operational Checks
Group 10—Tests and Adjustments
Group 15—Diagnostics
Group 20—Adjustments
Group 25—Theory of Operation

SECTION 291—Operator Station Diagnosis and Test (Serial No. 163101—)
Group 05—Air Conditioning General Information
Group 10—Tests and Adjustments
Group 15—Air Conditioning and Heater Diagnostics
Group 20—Component Location

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Table of Content (Technical Repair Manual – TM1819 )

Section 00—Foreword
Group 05—John Deere Dealers
Group 10—Service Technician Response

Section 10—General
Group 05—Safety
Group 10—Specifications
Group 15—Fuel, Coolant and Lubricants

Section 20—Engine
Group 05—Engine
Group 10—Cooling System

Section 30—Fuel and Air Systems
Group 05—Air Intake and Exhaust
Group 10—Diesel Fuel System

Section 40—Electrical
Group 05—Batteries
Group 10—Starter
Group 15—Alternator
Group 20—Engine Electrical Components
Group 25—Lighting and Accessory Components
Group 30—Gauges and Monitors
Group 35—Platform and Ground Speed Controls
Group 40—Cab Heat and A/C Electrical Components
Group 45—Connector Repair

Section 50—Power Train
Group 05—Hydrostatic System Flushing and Start-Up
Group 10—Pump Drive Gear Case
Group 15—Circulating Pump and Oil Cooler
Group 20—Ground Drive Pumps
Group 25—Ground Drive Motor
Group 30—Final Drive (S.N. -163100)
Group 31—Final Drive (S.N. 163101-)
Group 35—Ground Drive Linkage (S.N. -163100)
Group 36—Ground Drive Linkage (S.N. 163101-)

Section 60—Steering and Brakes
Group 05—Steering System (S.N. -163100)
Group 06—Steering System (S.N. 163101-)
Group 10—Brakes

Section 70—Hydraulic System
Group 05—Auxiliary-Charge Pump
Group 10—Platform Drive Pump
Group 15—Platform Drive Motor
Group 20—Main Hydraulic Control Valve
Group 25—Hydraulic Cylinders
Group 30—Miscellaneous

Section 80—Miscellaneous
Group 05—Rear Axle
Group 10—Drive Wheels
Group 15—Lift Arm

Section 90—Operator Station
Group 05—Air Conditioning Service
Group 10—Air Conditioning Repair
Group 15—Heater Controls
Group 20—Cab (S.N. -163100)
Group 21—Cab (S.N. 163101-)

Section 99—Dealer Fabricated Tools
Group 05—Dealer Fabricated Tools