· Much more convenient maintenance operation, durable oil and filters to reach longer maintenance period and 50% less expense.

· The longest designed lifetime can reach 25000 hours, 30% longer lifetime compared with previous models.

· More than 20 kinds of optional working devices, good protection of the engine with multi-stage reinforced fuel filter system.

· Reinforced structural parts cope with complex working conditions, multi-stage reinforced fuel filter system copes with inferior oil products, high-efficiency heat dissipation cooling system, hydraulic pulse absorber.