SYSTEM / Control System Control Valve Auxiliary Spool (For Attachment) Pressure Sensor 5-Spool Section 4-Spool Section Front Attachment Pump 2 Delivery Pressure Sensor Pump 1 Delivery Pressure Sensor Engine Con- trol Dial Pump 1 Regulator Pressure Sensor Pump 2 Regulator Pressure Sensor CAN Cummunication Monitor Unit (Work Mode) Pump 1 Control Solenoid Valve Pump 2 Control Solenoid Valve Digging mode Attachment Mode T1J1-02-02-008 T2-2-35