Hitachi Zaxis Zx 470lc-5g Excavator Workshop Service Repair Manual

Hitachi Zaxis Zx 470lc-5g Excavator Workshop Service Repair Manual

The new ZAXIS offers enhanced basic performance, in addition to a sophisticated hydraulic control system like HIOS IIIB.
For example, the boom circuit of the control valve was changed to an external flow combining circuit from the internal one to reduce energy loss when raising or lowering the boom. In addition, the power- boosting pressure function was enhanced to increase basic performance.

8% increased in swing torque
3% increased in traction force
3% increased in boom lifting capacities 3% increased in arm digging force*
3% increased in bucket digging force*
The operator can change over valves, adjust extra circuit flow, and check settings from the multifunction monitor next to the operator seat. What’s more, 11 jobs, including flow rate setting, can easily be selected by their identified names.

Hitachi Zaxis Zx 470lc-5g Excavator Workshop Service Repair Manual

Swift Front Movements with HIOS

* IIIB Hydraulics
Operating speed increases with less fuel consumption thanks to the HIOS IIIB hydraulic system, developed by industry-leading hydraulic technologies and a wealth of experience.
*Human & Intelligent Operation System
Improved Arm Controllability
Improved arm controllability for level luffing and level crowding for front movements, including swing operations. The boom regenerative circuit using the boom weight and the newly adopted variable orifice of the swing circuit help ensure hydraulic oil can be effectively allocated and pressure loss can be reduced.

Durable, Reliable Engine
This engine has a track record showing impressive durability at countless tough job sites around the world.
The engine — associated with a rugged design, a direct fuel injection system and an elaborate governor — goes green, and complies with EU Stage II and US EPA Tier 2 emissions regulations.
A simple cooling system, consisting of a radiator and oil cooler, facilitates smooth cooling air flow for improved cooling efficiency. The combination of a 235 kW (315 HP) engine and the new HIOS IIIB hydraulic system meets requirements, in terms of both output and fuel consumption.

Hitachi Zaxis Zx 470lc-5g Excavator Workshop Service Repair Manual

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Hitachi Zaxis Zx 470lc-5g Excavator Workshop Service Repair Manual