🏷️ Basic Information Identification Make: Volvo Penta Model: Aquamatic 280 Year: Not Specified Generation: 280 Series 📋 Manual Details Document Properties Manual Type: Parts Manual Language: English Page Count: Not Specified Format: PDF Availability Downloadable: Instant High Speed Download Printable: Yes Compatibility Operating Systems: All Versions of Windows, Mac, Linux Requirements Required Software: Adobe PDF Reader Usability Ease Of Understanding: Easy to Understand/Navigate ⚙️ Engine Specifications General Engine Type: Inboard Engine with Sterndrive Intended Engine Displacement: Compatible with various Volvo Penta gasoline engines (e.g., AQ170, AQ200, AQ270, AQ275, AQ290) Intended Engine Power Range: Variable based on paired engine 🔧 Transmission Drive Unit Type: Sterndrive (Aquamatic Drive) Drive Ratio: Not Specified Gear Shifting: Mechanical/Hydraulic (depending on specific application) 📐 Dimensions Physical Drive Unit Weight: Not Specified 🔧 Maintenance General Required Lubricant Type Drive: Volvo Penta Marine Gear Oil (Specific Grade Required) Required Lubricant Capacity Drive: Not Specified Typical Service Intervals Drive: Annual or every 100 operating hours (whichever comes first, recommended) Components Gimbal Bearing Service: Recommended periodic replacement/lubrication Shift Cable Adjustment: Periodically required for proper operation Water Pump Impeller Replacement: Annual or bi-annual depending on operating conditions