CONTENTS
Introduction and Safety Information
SECTION 220-ENGINE OPERATION AND TESTS
Group 05-System Operation
Group 10-System Tests and Diagnosis
SECTION 230-FUEL/AIR OPERATION AND TESTS
Group 05-Air Intake System
Group 10-Diesel Fuel System
Group 15-Control Linkage
SECTION 240-ELECTRICAL SYSTEM
Group 05-Electrical System Information
Group 06-Phase I Electrical Wiring Diagrams
Group 07-Phase II Electrical Wiring Diagrams
Group 10-Electrical System Diagnosis
Group 15-Delcotron Charging Circuit
Group 16-John Deere Charging Circuit
Group 20-Starting Circuit
Group 25-Lighting Circuit
Group 30-INVESTIGATOR™ II and Digital Tachometer
Group 31-Gauge Cluster Instrumentation
Group 32-Analog Tachometer
Group 35-Accessories Circuit
Group 40-PERFORMANCE TRAK™ I Radar Sensor System (Tachometer Version)
Group 41-PERFORMANCE TRAK™ II Radar Sensor System (Mini-Monitor)
Group 42-PERFORMANCE TRAK™ III Radar Sensor System (Multi-Function Monitor)
SECTION 250-POWER TRAIN (PERMA-CLUTCH TRANSMISSION)
Group 05-QUAD-RANGE™ System Operation
Group 10-PERMA-CLUTCH™ Operation
Group 15-QUAD-RANGE™ Planetary
Group 20-QUAD-RANGE™ Eight-Speed
Group 25-Transmission Oil Pump
Group 30-Transmission Lubrication Valve
Group 35-Transmission Control Valves
Group 40-Differential and Final Drive
Group 45-SYNCRO-RANGE™ Transmission
Group 55-PTO
Group 60-QUAD RANGE™ Transmissions Diagnosis
SECTION 255-POWER SHIFT TRANSMISSION
Group 05-Mechanical Operation
Group 10-Hydraulic Controls
Group 15-PTO, Differential and Final Drives
Group 16-Power Shift Transmission Diagnosis
Group 20-Mechanical Front Wheel Drive
SECTION 260-STEERING/BRAKES OPERATION AND TESTS
Group 05-4050, 4250, and 4450 Power Steering
Group 06-4650 and 4850 Power Steering
Group 10-Power Brakes
SECTION 270-HYDRAULIC OPERATION AND TESTS
Group 05-PERMA-CLUTCH™ Transmission Operation
Group 10-Power Shift Transmission Hydraulic System Operation and Tests
Group 15-Main Hydraulic Pump
Group 20-QUAD-RANGE™ Transmission Hydraulic Valves
Group 25-Power Shift Transmission Hydraulic Valves
Group 30-Pressure Control Valve
Group 35-HYDRACUSHIONED™ Seat
Group 40-Rockshaft Operation (4050, 4250, 4450)
Group 45-Rockshaft Operation (4650 and 4850)
Group 50-Selective Control Valve
Group 55-Remote Cylinder
Group 60-QUAD-RANGE Hydraulic Diagnosis
Group 65-Power Shift Transmission Hydraulic Diagnosis
SECTION 290-OPERATOR STATION OPERATIONS AND TESTS
Group 05-Air Conditioning System
Group 10-Air Conditioning System Tests-Introduction
Group 11-System Tests Without Timer Relay Warning Lamps
Group 12-System Tests With Timer Relay Warning Lamps
Group 15-Heating System Operation Tests
Group 20-HYDRACUSHIONED™ Seat
SECTION 299-SPECIAL TOOLS
Group 05-Purchased Tools
Group 10-Fabricated Tools
Group 15-Test Equipment Calibration