... buffer valve hydraulic system 3,Engine type/power(KW):Weichai 4100/44kw(60HP) front loader,back digger ,backhoe loader ... ensure reliable, efficient, stable job.Adopt weifang diesel engine, 4100 load sensing hydraulic steering isuzu double points before, ... , sexual and automatic translation put equal good performance.front loader back digger backhoe loaderMain Specification ModelHY500Overall dimension ( ...