▪ Model: Cummins QSL9-C334 Diesel engine;
▪ Type: 4-stroke, water-cooled, vertical in-line 6 cylinders, direct injection, turbo-charger, intercooler, complied with European Off-way Tier IV Emission Standard;
▪ Displacement: 8.9L;
▪ Rated power: 249kw/2100rpm;
▪ Operation power: 247kW/1800rpm;
▪ Max. Torque: 1424N·m/1500rpm;
▪ Starter: 24V-7.8kW;
▪ Radiator: fin type aluminum plate core;
▪ Air cleaner: Fleetguard direct flow air cleaner, air filter resistance indicator;
▪ Throttle: Grip type hand throttle, electrically-controlled;
▪ Fuel filter: Replaceable paper element;
▪ Batteries: Two 12V×180Ah capacity batteries, connected in series;
▪ Fuel tank capacity: 400L.
Electrical Control System
▪ Self-developed SYIC-II integrated control system is adopted with higher integration, precise operation and reliable quality;
▪ Control system consists of power system, engine system, main control system, LMI system, auxiliary system and safety monitoring system. CAN BUS is used for data communication between controller, monitor and the engine;
▪ Monitor: the working parameters and status are shown on the monitor, such as the engine speed, fuel volume, engine oil pressure, servo pressure, engine working hours, lifting conditions and boom angle.
▪ Main pumps: three open variable displacement piston pumps are adopted to provide oil supply for main actuators of machine;
▪ Gear pump: two types of gear pump for radiator and control circuit;
▪ Control: main pump adopts electrically-controlled positive flow control; winch motor adopts limitless adjustable piston motor of variable displacement. The operating components are two cross hydraulic handles, one dual travel control handles for travel (for EU and US market); or one three parallel hydraulic handles and one dual parallel hydraulic handles for travel (for other markets), to control various actuators proportionally;
▪ Way of cooling: heat exchanger, plate fan core and multi-stage cooling;
▪ Filter: large flow, high precision filter, with bypass valve and transmitter, which can remind the user to replace the filter element in time;
▪ Max. pressure of system: 32MPa;
▪ Main/aux. load hoist, boom hoist and travel system: 32MPa;
▪ Swing system: 32MPa;
▪ Control system: 5MPa;
▪ Hydraulic Tank Capacity:460L.
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