🏷️ Basic Information Identification Make: Volvo Penta Product Line: Aquamatic Drives Model Series: 280, 280 DP, 285, 290, 290 DP Generation: Not Applicable (Drive System) 📋 Manual Details Information Manual Type: Master Service Manual Manual Scope: Comprehensive service and maintenance Language: English Format: Service Manual (Likely Printed/Digital) Publisher: Volvo Penta ⚙️ Engine Specifications Compatibility Compatible Engine Types: Various Volvo Penta Marine Engines (Petrol & Diesel) Typical Power Range: 130 HP - 300 HP (Varies by specific drive and engine pairing) Drive Ratio: Varies by model (e.g., 1.61:1, 1.83:1, 2.02:1, 2.32:1) 🔧 Transmission Operation Drive System Type: Sterndrive (Inboard/Outboard) Gear Selection: Forward, Neutral, Reverse Propulsion Method: Propeller Drive 📐 Dimensions Drive Unit Drive Unit Height: Not specified (varies with installation) Drive Unit Weight: Approximately 100-150 kg (Varies by model) 🔧 Maintenance Lubrication Gear Oil Type: Volvo Penta Marine Gear Oil (Specific viscosity recommended) Gear Oil Capacity: Approximately 1.0 - 1.5 Liters (Varies by model) Intervals Annual Service Recommendation: Yes (Inspect and replace anodes, check fluid levels) Gear Oil Change Interval: Annually or every 100 operating hours, whichever comes first Components Key Maintenance Points: Anodes (sacrificial zinc/aluminum), bellows, gimbal bearing, U-joints, gear oil, shifting mechanism 📄 Technical Features Drive Modes Trim Range: Adjustable (Power Trim) Tilt Range: Adjustable (Power Tilt) Steering Type: Mechanical or Hydraulic (depending on boat installation)