This comprehensive David Brown Case 770 and 870 tractor service and repair manual provides detailed instructions for maintaining and servicing your tractor. The manual is a valuable resource for anyone looking to perform repairs or routine maintenance on their tractor, using diagrams and manufacturers specifications. It covers a wide range of topics, including: * **Brakes:** Learn how to diagnose and repair brake issues, ensuring the safety and reliability of your tractor. * **Clutch:** Understand the operation and maintenance of the clutch system, critical for smooth gear changes and power transmission. * **Cooling System:** Keep your engine running cool and efficient with detailed instructions on the cooling system. * **Diesel Fuel System:** Master the intricacies of the diesel fuel system, ensuring optimal engine performance and fuel efficiency. * **Diesel Turbocharger:** Learn how to maintain and troubleshoot the turbocharger, boosting your tractor's power and performance. * **Differential:** Gain knowledge of the differential, essential for distributing power to the wheels and smooth driving. * **Electrical System:** Navigate the electrical system, understanding components and troubleshooting electrical problems. * **Engine:** Dive deep into the heart of your tractor, covering everything from maintenance to complex repairs. * **Final Drive:** Get a thorough understanding of the final drive, responsible for transmitting power from the transmission to the wheels. * **Front Axle:** Learn about the front axle, crucial for steering and load support. * **Front System:** Explore the workings and maintenance of the front system, encompassing components like the loader. * **Gasoline Fuel System:** For gasoline-powered versions, this section provides in-depth information on the fuel system. * **Governor (Non-Diesel):** Understand the governor's role in controlling engine speed, crucial for optimal performance. * **Hydraulic System:** Master the hydraulic system, vital for operating implements and lifting heavy loads. * **Power Shift Clutch:** Learn about the power shift clutch, facilitating smooth gear changes under load. * **Power Steering System:** Ensure smooth steering with detailed information on maintaining the power steering system. * **Power Take-Off:** Get a comprehensive understanding of the power take-off (PTO), used for operating implements powered by the engine. * **Service Data:** Find essential service data and specifications, such as fluid capacities and torque values, for accurate maintenance. * **Steering Gear:** Maintain proper steering response with knowledge of the steering gear. * **Transmission:** Explore the workings of the transmission, responsible for shifting gears and transferring power to the axles. Whether you're a seasoned mechanic or a DIY enthusiast, this manual provides clear and concise instructions along with detailed illustrations to guide you through every step of the process.

The David Brown Case 770 and 870 tractors were a pair of powerful and versatile machines, renowned for their durability and reliability. Introduced in the late 1960s, these tractors were designed to handle a wide range of agricultural tasks, from plowing and cultivating to hauling and harvesting. Both models were powered by Perkins diesel engines, offering potent performance and fuel efficiency. The 770, equipped with a 6-cylinder engine producing 75 horsepower, was a robust option for smaller farms and light-duty applications. Conversely, the 870, boasting an 8-cylinder engine generating a formidable 105 horsepower, was a workhorse capable of tackling demanding tasks on larger farms. Both tractors featured a robust transmission with multiple gears, providing the operator with precise control and optimal power delivery for various situations. Their hydraulic systems were designed for efficiency and responsiveness, allowing for smooth operation of implements and attachments. Beyond their raw power and functionality, the David Brown Case 770 and 870 tractors were known for their operator comfort and ergonomics. The spacious and well-designed cabs provided a comfortable and safe working environment, with excellent visibility and intuitive controls. These features made for a pleasant and productive experience for operators, contributing to the tractors' overall appeal. Both models also benefited from David Brown Case's commitment to quality engineering and construction, resulting in tractors that were built to last. The 770 and 870 models were popular choices for farmers and agricultural businesses across the globe, thanks to their reliability, versatility, and enduring performance. Though production ceased in the early 1980s, these tractors remain highly sought-after by collectors and enthusiasts, many finding continued use on farms and in historical preservation settings.