Shop manual máy đào HuynDai R250: An toan, cấu trúc, sơ đồ điện, thủy lực,
5-7GROUP 4 POWER BOOST SYSTEMMain control valveArm 1Boom 2SwingLH travelArm 2BucketBoom 1OptionRH travelMain reliefvalveBoom priorityspoolPower boostsolenoid valveEngine speedsensorMain pumpPilot pumpEPPR valveDrive signalDrive signalP MEngineFuel injectionpumpAccelactuatorPower boostbuttonLH controlleverCPU controllerMotor drive signalPotentiometer signalEngine speed sensor signalMax flow CO valveMode switch signalPower boost button signalWhen the power boost switch on the left control lever knob is pushed ON, the maximum diggingpower is increased by 10%.When the power set is at H or S and the power boost function is activated, the power boost solenoidvalve pilot pressure raises the set pressure of the main relief valve to increase the digging power.DescriptionOFFPower boost switchONPower setMain relief valve set pressureTime of operationH or S330kgf/cm2-H360 kgf/cm2Even when pressed continuously,it is canceled after 8 sec.・・※Default - Power boost solenoid valve : OFF21075MS06 . 5-7 GROUP 4 POWER BOOST SYSTEMMain control valveArm 1Boom 2SwingLH travelArm 2BucketBoom. pressureTime of operationH or S330kgf/cm2-H360 kgf/cm2Even when pressed continuously,it is canceled after 8 sec.・・※Default - Power boost solenoid valve : OFF21075MS06