🏷️ Basic Information Identification Make: Hyundai Heavy Industry Model: HL770-9 Year: Not Specified Generation: 9 Series 📋 Manual Details Availability Manual Type: Service Manual / Repair Manual Format: PDF (Adobe Acrobat Reader File) Language: English ⚙️ Engine Specifications Diesel Engine Type: Cummins QSB6.7 Displacement: 6.7 Liters Power: 164 kW (220 HP) @ 2000 RPM Torque: 810 Nm (597 lb-ft) @ 1500 RPM Cooling System: Water-cooled 🔧 Transmission Powershift Type: Electronic Powershift Transmission Gears: 4 Forward / 4 Reverse 📐 Dimensions Overall Operating Weight: 21,500 kg (47,400 lbs) Length With Bucket: 7,820 mm (25 ft 8 in) Width Over Tires: 2,800 mm (9 ft 2 in) Height To Cab Top: 3,240 mm (10 ft 8 in) Wheelbase: 3,150 mm (10 ft 4 in) 🔧 Maintenance Lubrication Engine Oil Capacity: 24 Liters (6.3 US gal) Hydraulic Oil Capacity: 180 Liters (47.6 US gal) Transmission Oil Capacity: 20 Liters (5.3 US gal) Intervals Engine Oil Filter Change Interval: Every 500 Hours Hydraulic Oil Filter Change Interval: Every 1000 Hours Air Filter Maintenance Interval: As needed / every 250 hours 📄 Performance Travel Speed Max Travel Speed FWD: 38 km/h (23.6 mph) Lifting Capacity Rated Operating Capacity: 10,000 kg (22,046 lbs) Dump Height Max Dump Height: 2,890 mm (9 ft 6 in) Dump Reach Max Dump Reach: 1,110 mm (3 ft 8 in) 📄 Hydraulics System Hydraulic System Pressure: 210 bar (3045 psi) Hydraulic Pump Flow Rate: 285 L/min (75.3 GPM) 📄 Tires Standard Standard Tire Size: 23.5R25 📄 Cooling System Components Radiator Type: Aluminum Fin-and-Tube 📄 Braking System Type Service Brakes: Wet Multi-disc Parking Brake: Spring-applied, hydraulically released caliper disc