This comprehensive John Deere 7440 and 7445 Cotton Strippers Service Repair Technical Manual (TM1282) provides detailed instructions and illustrations to guide you through every aspect of servicing and repairing your machine. The manual covers a wide range of topics, including:

**General Information:** The manual begins with essential general information, safety precautions, specifications, and details on fuels and lubricants.

**Engine Repair:** It delves into engine repair, covering topics like engine removal and installation, cooling system maintenance, and troubleshooting.

**Fuel and Air System Repair:** The manual provides in-depth guidance on the diesel fuel system and related components.

**Electrical Repair:** A dedicated section covers electrical repairs, including charging circuit repair for different brands like Motorola, Nippondenso, and Bosch, starting circuits, monitor system repair, tachometer and gauges, lights, accessories, and connectors.

**Power Train Repair:** Detailed instructions are provided for repairing the Eaton and Sunstrand hydrostatic drives, transmission, differential, and final drive.

**Steering and Brakes Repair:** This section covers steering component removal and installation, steering column repair, steering metering pump repair, steering cylinder repair, and brake repair.

**Hydraulic Repair:** The manual covers the hydraulic pump, main control valve for both the 7440 and 7445 strippers, basket lift cylinder, rockshaft lift cylinders, height control cylinder, boll box cylinder, axle stabilizer cylinder, vane compactor cylinder, height motors, height control system, basket interlock valve, and stabilizer valve.

**Axle and Wheel Repair:** Guidance is provided for repairing the guide wheel axle for both the 7440 and 7445 models.

**Operator Station Repair:** The manual details repairing the air conditioning system (R12 and R134a), heating system, seat, and cab.

**Stripping Units Repair:** This section covers stripping unit removal and installation, unit repair, cross augers, slip clutches, and input shafts for both the 7440 and 7445 strippers.

**Air System Repair:** The manual provides instructions for repairing the air system.

**Cleaner Repair:** A dedicated section covers cleaner repair.

**Operational Checkout Procedures:** The manual includes procedures for machine operational checkout, engine operation and tests, fuel and air system operation and tests, electrical system operation and tests, power train operation and tests, steering and brake operation and tests, hydraulic system operation and tests, operator station operation and tests, stripping unit operation and tests, air system operation and tests, and cleaner operation and tests.

**Special Tools:** The manual features a section on fabricated tools, and a comprehensive index.

This manual is designed for both do-it-yourselfers and experienced mechanics, providing a valuable resource for keeping your John Deere 7440 and 7445 Cotton Strippers operating efficiently.

The John Deere 7440 and 7445 Cotton Strippers, as detailed in the Service Technical Manual TM1282, represent a pivotal step in the evolution of cotton harvesting technology. These machines, introduced in the late 1970s and early 1980s, incorporated innovative design features that significantly improved efficiency and productivity in cotton fields. The 7440 and 7445 models were built upon the success of previous John Deere cotton strippers, boasting increased horsepower, improved operator comfort, and enhanced harvesting capabilities. The 7440, powered by a 135-horsepower John Deere engine, was a robust workhorse, while the 7445, equipped with a 155-horsepower engine, delivered even greater power and performance. These strippers featured a unique, patented "Flex-Ride" system that allowed the harvesting unit to adjust to the terrain, maintaining consistent stripping action even in undulating fields. This adaptive design minimized damage to the cotton plant and ensured optimal cotton yield.

Beyond their robust construction and powerful engines, the 7440 and 7445 strippers were engineered with operator comfort and ease of operation in mind. The spacious, ergonomically designed cab provided a comfortable workspace, while intuitive controls allowed for effortless machine operation. These strippers incorporated a range of technological advancements, including a sophisticated hydraulic system that facilitated smooth and efficient harvesting operations. The 7440 and 7445 strippers were equipped with a wide array of optional accessories, including a variety of picking units, allowing operators to customize their machines to meet the specific needs of their crops and field conditions. These versatile machines proved to be reliable and efficient workhorses, playing a vital role in the cotton harvesting industry and contributing to John Deere's reputation for building high-quality farm equipment.