SYSTEM / Control System PUMP CONTROL The pump control system has the following functions: Pump Flow Rate Control Speed Sensing Control E Mode Control Horsepower Control Relief Flow Rate Decrease Control Swing Horsepower Reducing Control Overheat Prevention Control Attachment Mode Control (Optional) Pump Control for Counterweight (Optional) Fan Pump Flow Rate Control Pump Learning Control NOTE: (Optional): This control is for only the ma- chine with optional parts equipped.
Pump Control System Layout Pressure Sensor Pump 1 Regulator Pressure Sensor Pump 2 Regulator Pressure Sensor T1J1-02-02-001 Power Mode Switch Temperature Sensor T2-2-21 Engin t Boom elector ost Tem ature nsor Coo Tem Sen HP E P Boom Raise Boom Lower Arm Roll-Out Arm Roll-In Bucket Roll-Out Bucket Roll-In Pump 2 Deliver Travel (Right) Pressure Senso Travel (Left) Pump Swing Press e Con- Attachment (Optional) rol Dial Counterweight (Optional) Mode Switch - lant Intake-Air perature Temperature CAN Communication sor Sensor Pump 2 Control Pump 1 Contro Monitor Unit Solenoid Valve Solenoid Valve Mode (Work Mode) Mode Digging Attachment Mode Mode Mode y r 1 ur l