Hitachi ZX350LC-5B ZX350LCN-5B Technical Manual Operational Principle PDF Download

Description

Hitachi ZX350LC-5B / ZX350LCN-5B Operational Principle Technical Manual

This 448-page Technical Manual explains the operational principles, system architecture and component functions of the Hitachi ZX350LC-5B and ZX350LCN-5B hydraulic excavators. Identified as Part No. TODDD-EN-01, it provides detailed technical information for experienced technicians working with the machine’s engine controls, hydraulic circuits, electrical systems and major operating components.

Models and Equipment Covered

• ZX350LC-5B
• ZX350LCN-5B
• Engine: Isuzu AH-6HK1XZSA-01, 202 kW at 1900 min-1 (275 PS at 1900 rpm)
• Working-range information for 2.33 m (7 ft 8 in), 2.67 m (8 ft 9 in) and 3.20 m (10 ft 6 in) backhoe arms

Main Systems and Subjects Included

• Machine specifications, dimensions, operating weights and working ranges
• Main component, engine, pump, control valve, swing device and travel device layouts
• Engine, engine accessory, hydraulic and electrical component specifications
• Controllers and CAN communication circuits
• Engine control, pump control, standard and optional valve control, and other control functions
• ECM system including fuel injection control, fuel injection correction, EGR control, preheating, alarms and muffler filter regeneration
• Hydraulic system covering pilot, main and fan circuits
• Optional breaker, pulverizer and crusher hydraulic circuits
• Electrical power, starting, charging, pilot shut-off, auto shut-down, engine stop, monitor, security, radio, air conditioner, work light, wiper/washer and cab light circuits

Detailed Component Operation Coverage

The component-operation section goes beyond basic component identification by explaining how major hydraulic and mechanical assemblies function and interact. Illustrated operating principles and circuit information cover:

• Main pumps, regulators, solenoid valves, pilot pump and pump pressure sensors
• Swing reduction gear, swing motor, parking brake and valve unit
• Control valve hydraulic circuits, flow combiner valves, main and overload relief valves, regenerative valves, anti-drift valves and flow-rate control valves
• Front attachment, swing, travel and auxiliary/positioning pilot valves
• Travel reduction gear, travel motor, parking brake, travel brake valve, overload relief valve and travel mode control
• Signal control valve, shuttle valve, shockless valve, pump flow-rate control valves and swing parking-brake release circuit
• Pilot shut-off solenoid valve, fan pump, fan motor, fan valve, hose rupture valve and pilot relief valve
• Swing bearing, center joint and front-idler-integrated track adjuster

Why This Manual Is Useful

This manual is particularly useful when you need to understand how commands, hydraulic pressure, electronic signals and individual components work together on the ZX350LC-5B and ZX350LCN-5B. Its system diagrams, component layouts, circuit explanations and operating sequences provide the technical background needed to understand machine behavior before carrying out maintenance or repair work.

Instant PDF Download

Delivered as a digital PDF for immediate access after payment. Keep the manual available on a computer, tablet or other PDF-capable device whenever detailed machine-system information is needed.