This comprehensive workshop manual provides detailed instructions and technical information for servicing and repairing Volvo Penta Aquamatic 280, 280-DP, 285, 290, and 290-DP sterndrives. It covers a wide range of models and generations, including SP-A, SP-C, DP-A, DP-B, and DP-C configurations. The manual begins with general information and a list of special tools required for specific procedures. It then delves into detailed instructions for removing and installing the sterndrive, covering all aspects of the process. The manual also includes dedicated sections on repair instructions, transom shield maintenance, trim system adjustments, sterndrive extension procedures, welding techniques, painting guidelines, and electrical wiring diagrams. A comprehensive technical data section provides crucial specifications and parameters. Finally, the manual includes references to relevant service bulletins, ensuring access to the latest updates and technical advisories.

The Volvo Penta Aquamatic 280, 280-DP, 285, 290, and 290-DP sterndrives represent a popular and reliable choice for boaters seeking a powerful and versatile propulsion system. These sterndrive units were designed by Volvo Penta, a renowned Swedish manufacturer of marine engines and propulsion systems, and are known for their robust construction, durability, and smooth operation. The 280, 285, and 290 designations refer to the horsepower output of the corresponding engines, with the 280 and 285 being gasoline-powered and the 290 featuring a diesel engine option. The -DP suffix signifies a "Duoprop" configuration, indicating the presence of two propellers for enhanced maneuverability and efficiency. These Volvo Penta sterndrives are renowned for their ability to handle a wide range of boat sizes and applications, from recreational cruisers to smaller fishing vessels. They offer a balance of power and efficiency, allowing boaters to enjoy both exhilarating performance and fuel-saving operation. The Aquamatic design incorporates a compact and integrated system that combines the transmission, steering, and drive components into a single unit, simplifying maintenance and installation. The Duoprop configuration, with its twin propellers, provides exceptional control and responsiveness, particularly at low speeds, allowing for precise maneuvering in tight spaces. Moreover, these sterndrives are equipped with a variety of features designed to enhance safety and reliability, including a robust cooling system, corrosion-resistant materials, and easily accessible service points.