🏷️ Basic Information Identification Make: Bomag Model: BW 177 D-4 Type: Single Drum Roller Generation: D-4 Series 📋 Manual Details Information Manual Type: Workshop Service Repair Manual Language: English Format: PDF Download Publisher: Bomag (Original Equipment Manufacturer) ⚙️ Engine Specifications Diesel Engine Type: Diesel Manufacturer: Perkins (common for this model, confirm with specific serial number) Displacement: Approximately 2.5 - 3.0 Liters (specific to engine variant) Power Output: Approximately 50 - 60 kW (70 - 80 HP) 🔧 Transmission Drive Type: Hydrostatic Drive System: All-wheel drive (2WD or 4WD depending on configuration) 📐 Dimensions Physical Operating Weight: Approximately 7 - 9 Metric Tons (depending on configuration and ballast) Drum Width: Approximately 1770 mm 🔧 Maintenance Fluids Engine Oil Capacity: Approximately 8 - 10 Liters (check specific engine type) Hydraulic Oil Capacity: Approximately 40 - 50 Liters Intervals Engine Oil Change Interval: Every 250-500 operating hours (recommendation, check manual) Air Filter Replacement: As needed based on operating conditions, typically every 250-1000 hours 📄 Capabilities Compaction Compaction Force: Variable, adjustable through amplitude settings Vibration Frequency: Adjustable, typically between 25-45 Hz Amplitude Settings: Dual amplitude (e.g., 0.6mm and 1.2mm) 📄 Electrical System Voltage System Voltage: 12V 📄 Fuel System Capacity Fuel Tank Capacity: Approximately 100 - 120 Liters 📄 Safety Features Operator Controls Rops: Yes (Rollover Protective Structure) Seat Belt: Yes