CONTENTS
SECTION 210-GENERAL
Introduction and Safety Information
SECTION 220-8450/8650 ENGINE OPERATION AND TESTS
Group 00-Specification and Special Tools
Group 05-System Operation
Group 10-System Tests and Diagnosis
SECTION 225-8850 ENGINE OPERATION AND TESTS
Group 00-Specifications and Special Tools
Group 05-System Operation
Group 10-System Tests and Diagnosis
SECTION 230-FUEL/AIR OPERATION AND TESTS
Group 00-Specifications and Special Tools
Group 05-Air Intake System
Group 10-Diesel Fuel System
Group 15-Control Linkage
SECTION 240-ELECTRICAL OPERATION AND TESTS
Group 00-Specifications and Special Tools
Group 05-Electrical System Information
Group 06-Phase I Wiring Diagrams
Group 07-Phase II Wiring Diagrams
Group 08-Phase III Wiring Diagrams
Group 10-Electrical System Diagnosis
Group 15-Charging Circuit Operation
Group 20-John Deere Starting Circuit
Group 21-Delco-Remy Starting Circuit
Group 25-Lighting Circuit
Group 30-INVESTIGATOR™ II Warning System
Group 35-Accessory Circuits
Group 40-Remote Electrical Circuits
SECTION 250-POWER TRAIN OPERATION AND TESTS
Group 00-Specifications and Special Tools
Group 05-PERMA-CLUTCH™ Operation and Lubrication
Group 10-QUAD-RANGE™ Planetary Operation
Group 15-QUAD-RANGE™ Eight-Speed Operation
Group 20-Transmission Operation and Lubrication Circuits
Group 25-Independent PTO Operation
Group 30-Torque Divider and Drive Shafts
Group 35-Differential and Final Drive Operation
Group 40-Power Train Tests
SECTION 260-STEERING/BRAKES OPERATION AND TESTS
Group 00-Specifications and Special Tools
Group 05-Power Steering System Operation
Group 10-Steering Metering Pump Operation
Group 15-Steering Valve Operation
Group 20-Steering and Feedback Cylinders Operation
Group 25 -Steering System Tests and Diagnosis
Group 30-Power Brake System Operation
Group 35-Brake Valve and Break Accumulator Operation
Group 40-Brake Pistons, Plates and Disks Operation
Group 45-Brake System Tests and Diagnosis
SECTION 270-HYDRAULIC OPERATION AND TESTS
Group 00-Specifications and Special Tools
Group 05-Hydraulic System Operation
Group 10-Triple Pump Assembly Operation and Tests
Group 15-Charge Circuit Valves Operation and Tests
Group 20-Main Hydraulic Pump Operation and Tests
Group 25-HYDRACUSHIONED™ Seat Valve Operation and Tests
Group 30-Pressure Control Valve Operation and Tests
Group 35-Rockshaft System Operation and Tests
Group 40-Selective Control Valve Operation and Tests
Group 45-Remote Cylinder Operation and Tests
Group 50-Hydraulic System Tests
SECTION 290-OPERATOR STATION OPERATIONS AND TESTS
Group 00-Specifications and Special Tools
Group 05-Air Conditioning System Operation
Group 10-Air Conditioning System Tests
Group 15-Heating System Operation and Tests
Group 20-HYDRACUSHIONED Seat