John Deere 4050 4250 4450 Technical Repair Manual [Tractors]

Factory Technical Repair Manual TM1353 For John Deere 4050, 4250, 4450 Tractors. Tons of illustrations, instructions, diagrams for step by step remove and install, assembly and disassembly, service, maintenance, inspection, repair, troubleshooting, tune-ups. Digital PDF format, searchable and bookmarked.

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Models

John Deere
4050
4250
4450

Contents

SECTION GENERAL
Predelivery, Delivery and AfterSale Services
Tuneup
Lubrication
SECTION SEPARATION
Front Axle
FrontEnd
FrontEnd and Engine
Engine
SOUNDGARD® body and ROLLGARD® Protective Structure
Power Shift Clutch Housing
QUADRANGE Clutch Housing
Transmission
Final Drives
HiCrop Final Drives
SECTION ENGINE
Acquire Access to Cylinder Head, Valves and Camshaft
Acquire Access to Cylinder Block, Liners, Pistons and Rods
Acquire Access to Crankshaft, Main Bearings and Flywheel
Acquire Access to Lubrication System
Remove/Install Cooling System
SECTION FUEL AND AIR SYSTEM
Acquire Access to Air Intake System
Acquire Access to Diesel Fuel System
Speed Control Linkage
SECTION ELECTRICAL
Harness Replacement
Connector Repair
Remove/Install DelcoRemy Charging Circuit
John Deere Charging Circuit Repair
Starting Circuit Replacement
Lighting Circuit Repair
INVESTIGATOR II Warning System and Digital Tachometer Repair
Gauge Cluster Instrumentation Repair
Analog Tachometer Repair
Accessories Circuit Repair
SECTION POWER TRAINPERMA CLUTCH TRANSMISSION
Remove/Install Clutch Oil Pressure Valve Housing
Clutch Oil Pressure Regulating Valve Housing
Clutch Operating Piston Housing
PERMA CLUTCH
GroupandQUADRANGE Planetary
GroupQUADRANGE Planetary
EightSpeed Transmission & Charge Pump
Shift Lever Assembly
PTO Gear Train (without MFWD)
PTO Gear Train (with MFWD)
Adjust PTO Clutch Rod
Group(Trans Serial No ) Differential
Group(Trans Serial No),andDifferential
Remove/Install Differential Lock Valve and Adjust Lock Valve Release Bar
Differential Lock Valve
Final Drive
HiCrop Final Drive
MFWD Gear Train and Clutch
MFWD Axle
SECTION POWER TRAINPOWER SHIFT TRANSMISSION
Remove/Install Traction Clutch Valve Housing
Traction Clutch Valve Housing
Remove/Install Transmission Control Valve Housing
Transmission Control Valves
Remove/Install Traction Clutch
Traction Clutch and Drive Shafts
Input Planetary
Reduction Gear Train
GroupandOutput Planetary
GroupOutput Planetary
Speed Selector Assembly
Charge Pump Assembly
PTO Gear Train with MFWD
PTO Gear Train without MFWD
Adjust PTO Clutch Rod
Group(Trans Serial No ) Differential
Group(Trans Serial No),andDifferential
Remove/Install Differential Lock Valve and Adjust Lock Valve Release Bar
Differential Lock Valve
Final Drive
HiCrop Final Drive
MFWD Gear Train
MFWD Clutch
MFWD Axle and Final Drive
SECTION STEERING/BRAKES
Remove/Install Power Steering Components
Steering Column
Metering Pump
Steering Valve
Steering Motor
Dual Piston Steering Motor
Steering Assist Cylinders (MFWD)
Remove/Install Brake Valve and Brake Accumulator
Brake Valve
Brake Accumulator
Bleeding Brakes and Testing Brake Accumulator
Brake Pistons, Plates and Disks
SECTION HYDRAULICS
Remove/Install Main Hydraulic Pump
Oil Filter Relief Valve Housing (QRT)
Return Oil Filter Relief Valve Housing (PST)
Remove/Install Attenuator
Hydraulic Attenuator
Remove/Install HYDRACUSHIONED Seat Valve
Repair HYDRACUSHIONED Seat Valve Assembly
Pressure Control Valve
Remove/Install Rockshaft Components and Adjust Lift Assist Cylinders
Rockshaft Components
Lift Assist Cylinders
Draft Sensing Components
rHitch Components
Remove/install SCV Coupler & Levers
SCV and ISO Coupler
Remote Cylinder
Hydraulic Oil Cooler and Thermal Bypass Valve
TransmissionHydraulic System Cleanup Procedure
SECTION MISCELLANEOUS
Rear Wheels
Front Axle
SECTION OPERATOR STATION
Air Conditioning System
Air Conditioning System Service
Heating System
Seat
SECTION MISCELLANEOUS OPTIONS
Auxiliary Lighting and Electrical Components
Digital Tachometer Ground Speeds
Auxiliary Trailer Brake
Secondary Brake
Minor Options
Auxiliary Steering System
SECTION SPECIAL TOOLS