## John Deere 4425 Combine: A High-Performance Harvesting Solution for Modern Agriculture

**Introduction**

The John Deere 4425 Combine is a state-of-the-art agricultural harvesting machine designed to deliver exceptional productivity, efficiency, and durability in a wide range of crop conditions. With its advanced design and innovative technologies, the 4425 Combine sets a new benchmark for combine harvesters in the industry.

**Powerful and Efficient Performance**

At the heart of the 4425 Combine is a powerful PowerTech™ PWX engine that delivers up to 530 horsepower. This engine is coupled with an efficient Hydrostatic Transmission (HST) that provides smooth and responsive operation, ensuring optimal performance in all field conditions.

**Exceptional Harvesting Performance**

The 4425 Combine is equipped with a wide and durable header that can handle a variety of crop types and conditions. The innovative Multi-Crop Processor (MCP) system provides precise cutting and threshing, ensuring maximum grain recovery and minimal losses.

**Advanced Grain Handling System**

The 4425 Combine features a high-capacity grain tank with a generous grain holding capacity. The tank is equipped with a powerful unloading system that quickly and efficiently empties the grain into grain carts or storage bins.

**Operator-Friendly Cab**

The 4425 Combine's spacious and ergonomic cab provides operators with a comfortable and productive work environment. The cab is equipped with air conditioning, heating, and a premium sound system for enhanced operator comfort and productivity.

**Intelligent Technologies**

The 4425 Combine is equipped with a suite of intelligent technologies that optimize performance and simplify operation. These technologies include AutoTrac™ Automatic Steering, HarvestSmart™ combine settings optimization, and John Deere Link™ for remote monitoring and diagnostics.

**Durability and Reliability**

The John Deere 4425 Combine is built to withstand the toughest harvesting conditions. The heavy-duty frame and components ensure long-lasting durability and reliability, even in demanding agricultural environments.

**Conclusion**

The John Deere 4425 Combine is a true powerhouse in the agricultural industry, delivering exceptional performance, efficiency, and operator comfort. Its advanced design and innovative technologies make it an essential tool for modern farmers looking to maximize productivity and minimize harvesting losses.

This is the complete factory service repair technical workshop manual for theJohn Deere 4425 Combine. This Service Manual has easy-to-read text sections with top quality diagrams and instructions.They are specifically written for the do-it-yourselfer as well as the experienced mechanic.With step by step instruction & highly detailed exploded pictures & diagrams to show you how to complete the required job correctly & efficiently Using. John Deere 4425 Combine Service Repair Technical Manual covers every single detail on your machine.provides step-by-step instructions based on the complete disassembly of the machine.This repair manual is an inexpensive way to keep you vehicle working properly.


Service Technical Manual Covers:

SECTION 10 - GENERAL
Group 05 - General Specifications
Group 10 - Diagnosing and Testing Procedures
Group 15 - Tune-Up and Adjustment
Group 20 - Clamping Ring Bearings
Group 25 - Drive Belts
Group 30 - Drive Chains
SECTION 20 - ENGINE -REPAIR
Group 05 - Engine Removal
Group 10 - Cooling System
SECTION 30 - FUEL / AIR INTAKE SYSTEM - REPAIR
Group 05 - Air Intake and Exhaust Systems
Group 10 - Diesel - Fuel System
Group 15 - Speed Control Linkage
SECTION 40 - ELECTRICAL SYSTEM - REPAIR
Group 05 - Wiring Harnesses and Connectors
Group 10 - Starting Motor
Group 15 - Alternator
Group 20 - System Components
Group 25 - Low Shaft Speed Monitor
Group 30 - HARVESTRAK Combine Monitor
SECTION 50 - POWER TRAIN - REPAIR
Group 05 - POSI-TORQ Ground Drive - Upper Unit
Group 10 - POSI-TORQ Ground Drive - Lower Unit
Group 15 - Clutch Control
Group 20 - Clutch
Group 25 - Four-Speed Transmission
Group 30 - Final Drives
SECTION 60 - BRAKES AND REAR AXLE - REPAIR
Group 05 - Power Steering
Group 10 - Rear Axle and V-Support
Group 15 - Parking Brake
Group 20 - Brakes Control
Group 25 - Brakes
SECTION 70 - HYDRAULIC SYSTEM - REPAIR
Group 05 - Main Hydraulic Reservoir
Group 10 - Main Hydraulic Pump
Group 15 - Main Hydraulic Control Valve
Group 20 - Hydraulic Cylinders
Group 25 - Accumulator and Gauge
Group 30 - Hydraulic Reel Drive System
Group 35 - Hydraulic Reverser Motor
SECTION 80 - SEPARATOR SHELL - REPAIR
Group 05 - Rear Hood
Group 10 - Rear Axle
SECTION 90 - OPERATORS STATION - REPAIR
Group 05 - Air Conditioning - Compressor
Group 10 - Air Conditioning - Components
Group 15 - Air Conditioning - Service
Group 20 - Pressurizer System
Group 25 - Heating System
Group 30 - Seat
Group 35 - Cab
SECTION 100 - HEADERS - REPAIR
Group 05 - 200 Series Cutting Platform
Group 10 - 40 Series Corn Head
Group 20 - 50 Series Row-Crop Heads
SECTION 110 - HEADER AND FEEDER DRIVES - REPAIR
Group 05 - Header and Feeder Drives
Group 10 - Header and Feeder Drives
Group 15 - Hydraulic Reverser
SECTION 120 - SEPARATOR / CLEANING UNIT - REPAIR
Group 05 - Separator Drive
Group 10 - Threshing Cylinder Variable Drive
Group 11 - Cylinder Drive Reduction Gear
Group 15 - Threshing Cylinder
Group 20 - Concave
Group 25 - Beater Variable Drive
Group 30 - Beater
Group 35 - Straw Walkers
Group 40 - Chaffer and Sieves
Group 45 - Cleaning Fan
Group 50 - Straw Chopper
Group 55 - Straw Spreader
SECTION 130 - ELEVATORS, GRAIN TANK AND UNLOADING AUGERS - REPAIR
Group 05 - Tailings Augers and Elevator
Group 10 - Clean Grain Auger and Elevator
Group 15 - Grain Tank Augers
Group 20 - Unloading Auger and Housing
SECTION 140 - DIAL-A-MATIC HEADER HEIGHT CONTROL - REPAIR
Group 05 - Electrical System
Group 10 - Hydraulic System
SECTION 220 - ENGINE - OPERATION AND TESTS
Group 05 - Cooling System
SECTION 230 - FUEL AND AIR INTAKE SYSTEM - OPERATION AND TESTS
Group 05 - Air Intake System
Group 10 - Diesel Fuel System
SECTION 240 - ELECTRICAL SYSTEM - OPERATION AND TESTS
Group 05 - General Testing / Wiring Charts and Diagrams
Group 10 - Starting Motor
Group 15 - Alternator
Group 20 - Low Shaft Spead Monitor
Group 25 - HARVESTRAK Combine Monitor
SECTION 250 - POWER TRAIN - OPERATION AND TESTS
Group 05 - POSI-TORQ Ground Drive
Group 10 - Clutch Control
Group 15 - Clutch
Group 20 - Transmission
SECTION 260 - STEERING / BRAKES - OPERATION AND TESTS
Group 05 - Power Steering - Operation
Group 10 - Power Steering - Diagnosing
Group 15 - Power Steering - Tests
Group 20 - Brakes and Brakes Control
SECTION 270 - HYDRAULIC SYSTEM - OPERATION AND TESTS
Group 05 - Hydraulic System Operation
Group 10 - Diagnosing Malfunctions
Group 15 - Hydraulic System
SECTION 290 - OPERATORS STATION - OPERATION AND TESTS
Group 05 - Air Conditioning Operation
Group 10 - Air Conditioning - Tests
Group 15 - Pressurizer System
SECTION 340 - DIAL-A-MATIC HEADER HEIGHT CONTROL - OPERATION AND TESTS
Group 05 - General Information, Diagnosis
Group 10 - Electrical System
Group 15 - Hydraulic System
Group 20 - Mechanical System
And More......


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File Format: PDF
Compatible: All Versions of Windows & Mac
Language: English
Requirements: Adobe PDF Reader & WinZip


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