Hitachi Excavator Zaxis Zx470-3 Op And Technical Manual-21423H350215.pdf -Bookmark COVER INTRODUCTION CONTENTS SECTION 1 GENERAL Specifications SPECIFICATIONS WORKING RANGES Component Layout MAIN COMPONENT LAYOUT ELECTRICAL COMPONENT LAYOUT ENGINE PUMP DEVICE SWING DEVICE TRAVEL DEVICE CONTROL VALVE Component Specifications ENGINE ENGINE ACCESSORIES HYDRAULIC COMPONENT ELECTRICAL COMPONENT SECTION 2 SYSTEM Controller OUTLINE CAN: CONTROLLER AREA NETWORK (NETWORK PROVIDED FOR MACHINE) MC: MAIN CONTROLLER ECM: ENGINE CONTROL MODULE ICF: INFORMATION CONTROLLER MONITOR UNIT Control System OUTLINE ENGINE CONTROL PUMP CONTROL VALVE CONTROL OTHER CONTROLS ECM System OUTLINE FUEL INJECTION CONTROL FUEL INJECTION AMOUNT CORRECTION CONTROL PREHEATING CONTROL EGR (EXHAUST GAS RECIRCULATION) CONTROL ENGINE STOP CONTROL Hydraulic System OUTLINE PILOT CIRCUIT MAIN CIRCUIT COUNTERWEIGHT REMOVAL Electrical System OUTLINE MAIN CIRCUIT ELECTRIC POWER CIRCUIT (KEY SWITCH: OFF) ACCESSORY CIRCUIT STARTING CIRCUIT (KEY SWITCH: START) CHARGING CIRCUIT (KEY SWITCH: ON) SERGE VOLTAGE PREVENTION CIRCUIT PILOT SHUT-OFF CIRCUIT (KEY SWITCH: ON) SECURITY LOCK CIRCUIT ENGINE STOP CIRCUIT (KEY SWITCH: OFF) SECURITY HORN CIRCUIT WORKING LIGHT CIRCUIT WIPER SECTION 3 COMPONENT OPERATION Pump Device OUTLINE MAIN PUMP, FAN PUMP REGULATOR FOR MAIN PUMP REGULATOR FOR FAN PUMP PUMPS 1, 2 CONTROL SOLENOID VALVE, FAN PUMP CONTROL SOLENOID VALVE PILOT PUMP PUMP DELIVERY PRESSURE SENSOR PUMP REGULATOR PRESSURE (FLOW RATE CONTROL PRESSURE) SENSOR Swing Device OUTLINE SWING REDUCTION GEAR SWING MOTOR SWING PARKING BRAKE VALVE UNIT Control Valve OUTLINE HYDRAULIC CIRCUIT MAIN RELIEF VALVE OVERLOAD RELIEF VALVE (WITH MAKE-UP FUNCTION) BOOM OVERLOAD RELIEF CONTROL VALVE FLOW COMBINER VALVE ANTI-DRIFT VALVE REGENERATIVE VALVE FLOW RATE CONTROL VALVE BYPASS SHUT-OUT VALVE Pilot Valve OUTLINE OPERATION SHOCKLESS FUNCTION (ONLY FOR TRAVEL PILOT VALVE) Travel Device OUTLINE TRAVEL REDUCTION GEAR TRAVEL MOTOR TRAVEL BRAKE VALVE PARKING BRAKE Signal Control Valve OUTLINE PILOT PORT SHUTTLE VALVE SHOCKLESS VALVE ARM FLOW RATE CONTROL VALVE CONTROL SPOOL, FLOW COMBINER VALVE CONTROL SPOOL, SWING PARKING BRAKE RELEASE SPOOL Others (Upperstructure) PILOT SHUT-OFF SOLENOID VALVE 4-SPOOL SOLENOID VALVE UNIT PILOT RELIEF VALVE FAN MOTOR FAN VALVE SHOCKLESS VALVE ACCUMULATOR DISTRIBUTION VALVE (OPTIONAL) Others (Undercarriage) SWING BEARING CENTER JOINT TRACK ADJUSTER SERVICE MANUAL REVISION REQUEST FORM . Notice: This is a preview not fully updated, please download the full version at https://NewsManuals.com