🏷️ Basic Information Identification Make: Volvo Penta Model: Aquamatic Sterndrive Drive Series: 280, 285, 290 DP Drive Generations: SP-A, SP-C, DP-A, DP-B, DP-C 📋 Manual Details Publication Manual Type: Workshop Service Manual Manual Title: VOLVO PENTA 280 285 290 DP DRIVES Workshop Service Manual Format: PDF Download Content Language: English Included Sections: General Information, Special Tools, Drive Models and Generations, Removing the Sterndrive, Repair Instructions, Installing the Sterndrive, Transom Shield, Trim System, Sterndrive Extensions, Welding, Painting, Electrical Wiring Diagrams, Technical Data, References to Service Bulletins 🔧 Maintenance General Service Procedures: Comprehensive repair and overhaul instructions Diagnostic Information: Provided for troubleshooting 📄 Drive Components Drive Types Drive Models: • 280 • 285 • 290 • 280-DP • 290-DP Drive Generations: • SP-A • SP-C • DP-A • DP-B • DP-C 📄 Technical Data General Fluid Type Gear Oil: Refer to specific drive model specifications Trim System Hydraulic Fluid: Refer to specific drive model specifications Recommended Lubricants: Detailed recommendations provided Drive Specific Gear Ratio Range: Varies by drive model and propeller configuration Propeller Shaft Type: Splined connection Drive Material: Primarily cast aluminum alloy 📄 Repair Instructions Disassembly Sterndrive Removal: Detailed step-by-step process Overhaul Gear Assembly Rebuild: Instructions for internal gear and bearing service Seal Replacement: Guidance on replacing all seals and gaskets 📄 Electrical Systems Wiring Wiring Diagrams: Included for trim system and drive controls 📄 Body And Chassis Transom Shield Transom Shield Service: Instructions for removal, repair, and installation Trim System Trim System Components: Covers hydraulic rams, pumps, and control units Trim System Operation: Explanation of hydraulic trim and tilt system