CONTENTS
Group 05-Predelivery, Delivery and After-Sale Services
Group 10-Tune-up
Group 15-Lubrication
SECTION 15-SEPARATION
Group 05-Front Axle
Group 10-Front-End
Group 15-Front-End and Engine
Group 20-Engine
Group 25-SOUND-GARD® body and ROLL-GARD® Protective Structure
Group 30-Power Shift Clutch Housing
Group 31-QUAD-RANGE™ Clutch Housing
Group 35-Transmission
Group 40-Final Drives
Group 41-Hi-Crop Final Drives
SECTION 20-ENGINE
Group 05-Acquire Access to Cylinder Head, Valves and Camshaft
Group 10-Acquire Access to Cylinder Block, Liners, Pistons and Rods
Group 15-Acquire Access to Crankshaft, Main Bearings and Flywheel
Group 20-Acquire Access to Lubrication System
Group 25-Remove/Install Cooling System
SECTION 30-FUEL AND AIR SYSTEM
Group 05-Acquire Access to Air Intake System
Group 10-Acquire Access to Diesel Fuel System
Group 15-Speed Control Linkage
SECTION 40-ELECTRICAL
Group 05-Harness Replacement
Group 06-Connector Repair
Group 10-Remove/Install Delco-Remy Charging Circuit
Group 11-John Deere Charging Circuit Repair
Group 15-Starting Circuit Replacement
Group 25-Lighting Circuit Repair
Group 30-INVESTIGATOR II™ Warning System and Digital Tachometer Repair
Group 31-Gauge Cluster Instrumentation Repair
Group 32-Analog Tachometer Repair
Group 35-Accessories Circuit Repair
SECTION 50-POWER TRAIN-PERMA CLUTCH™ TRANSMISSION
Group 05-Remove/Install Clutch Oil Pressure Valve Housing
Group 10-Clutch Oil Pressure Regulating Valve Housing
Group 15-Clutch Operating Piston Housing
Group 20-PERMA CLUTCH
Group 30-4050 and 4250 QUAD-RANGE Planetary
Group 31-4450 QUAD-RANGE Planetary
Group 35-Eight-Speed Transmission & Charge Pump
Group 45-Shift Lever Assembly
Group 55-PTO Gear Train (without MFWD)
Group 56-PTO Gear Train (with MFWD)
Group 60-Adjust PTO Clutch Rod
Group 65-4050 (Trans. Serial No. -006643) Differential
Group 66-4050 (Trans. Serial No. 006644- ), 4250 and 4450 Differential
Group 70-Remove/Install Differential Lock Valve and Adjust Lock Valve Release Bar
Group 75-Differential Lock Valve
Group 80-Final Drive
Group 85-Hi-Crop Final Drive
Group 90-MFWD Gear Train and Clutch
Group 95-MFWD Axle
SECTION 55-POWER TRAIN-POWER SHIFT TRANSMISSION
Group 05-Remove/Install Traction Clutch Valve Housing
Group 10-Traction Clutch Valve Housing
Group 15-Remove/Install Transmission Control Valve Housing
Group 20-Transmission Control Valves
Group 25-Remove/Install Traction Clutch
Group 30-Traction Clutch and Drive Shafts
Group 35-Input Planetary
Group 40-Reduction Gear Train
Group 45-4050 and 4250 Output Planetary
Group 46-4450 Output Planetary
Group 50-Speed Selector Assembly
Group 55-Charge Pump Assembly
Group 60-PTO Gear Train with MFWD
Group 61-PTO Gear Train without MFWD
Group 65-Adjust PTO Clutch Rod
Group 70-4050 (Trans. Serial No. -002724) Differential
Group 71-4050 (Trans. Serial No. 002725- ), 4250 and 4450 Differential
Group 75-Remove/Install Differential Lock Valve and Adjust Lock Valve Release Bar
Group 80-Differential Lock Valve
Group 85-Final Drive
Group 90-Hi-Crop Final Drive
Group 95-MFWD Gear Train
Group 100-MFWD Clutch
Group 105-MFWD Axle and Final Drive
SECTION 60-STEERING/BRAKES
Group 05-Remove/Install Power Steering Components
Group 10-Steering Column
Group 15-Metering Pump
Group 20-Steering Valve
Group 25-Steering Motor
Group 26-Dual Piston Steering Motor
Group 30-Steering Assist Cylinders (MFWD)
Group 35-Remove/Install Brake Valve and Brake Accumulator
Group 40-Brake Valve
Group 45-Brake Accumulator
Group 50-Bleeding Brakes and Testing Brake Accumulator
Group 55-Brake Pistons, Plates and Disks
SECTION 70-HYDRAULICS
Group 05-Remove/Install Main Hydraulic Pump
Group 15-Oil Filter Relief Valve Housing (QRT)
Group 20-Return Oil Filter Relief Valve Housing (PST)
Group 25-Remove/Install Attenuator
Group 30-Hydraulic Attenuator
Group 35-Remove/Install HYDRACUSHIONED Seat Valve
Group 40-Repair HYDRACUSHIONED Seat Valve Assembly
Group 45-Pressure Control Valve
Group 50-Remove/Install Rockshaft Components and Adjust Lift Assist Cylinders
Group 55-Rockshaft Components
Group 60-Lift Assist Cylinders
SECTION70-HYDRAULICS-Continued
Group 65-Draft Sensing Components
Group 70r-Hitch Components
Group 75-Remove/install SCV Coupler & Levers
Group 80-SCV and ISO Coupler
Group 85-Remote Cylinder
Group 90-Hydraulic Oil Cooler and Thermal Bypass Valve
Group 95-Transmission-Hydraulic System Cleanup Procedure
SECTION 80-MISCELLANEOUS
Group 05-Rear Wheels
Group 10-Front Axle
SECTION 90-OPERATOR STATION
Group 05-Air Conditioning System
Group 06-Air Conditioning System Service
Group 10-Heating System
Group 15-Seat
SECTION 95-MISCELLANEOUS OPTIONS
Group 40-Auxiliary Lighting and Electrical Components
Group 45-Digital Tachometer Ground Speeds
Group 62-Auxiliary Trailer Brake
Group 63-Secondary Brake
Group 80-Minor Options
Group 85-Auxiliary Steering System
SECTION 99-SPECIAL TOOLS