🏷️ Basic Information Identification Make: Volvo Penta Model: Aquamatic Series: 280/DP, 285, 290 Product Type: Service Manual 📋 Manual Details Content Manual Type: Service and Repair Language: English Format File Format: PDF Availability Download Method: Instant High Speed Download Compatibility Operating Systems: Windows, Mac, Linux Features Printable: Yes Navigation: Easy to Understand/Navigate Requirements Software: Adobe PDF Reader ⚙️ Engine Specifications General Engine Family: Aquamatic Drive Systems Drive Types Covered: Sterndrive (DP) and Inboard (280, 285, 290) Engine Integration: Designed for various Volvo Penta marine engines 🔧 Transmission Drive Unit Type: Sterndrive / Outdrive Gear Ratio Typical Ratios: Various ratios depending on specific model and application 🔧 Maintenance Lubrication Drive Unit Oil Type: Marine Gear Oil (e.g., Volvo Penta Marine Gear Lubricant) Drive Unit Oil Capacity: Varies by drive model (refer to manual for specific quantities) Intervals Drive Unit Oil Change Interval: Typically Annually or Every 100 Hours (refer to manual) Drive Unit Gear Lubrication Interval: Recommended regular checks and changes as per manual Service Procedures Cooling System Service: Includes impeller replacement and flushing Trim System Maintenance: Hydraulic fluid checks and bleeding procedures Troubleshooting Common Issues Covered: Shift problems, overheating, water ingress, noise diagnosis 📄 Technical Data Drive Unit Drive Models Supported: 280, 280D, 280DP, 285, 290, 290A, 290DP Gear Shifting Mechanism: Mechanical and/or Hydraulic Propulsion System: Sterndrive (2-blade or 3-blade propeller options) Steering System: Integrated with drive unit