Hitachi ZX470-5B, ZX470LCH-5B and ZX520LCH-5B Excavator Manual

The manual is applicable for the Hitachi Excavator Model:

• ZX470-5B
• ZX470LC-5B
• ZX470H-5B
• ZX470LCH-5B
• ZX470R-5B
• ZX470LCR-5B
• ZX520LCH-5B

Format: PDF
Language: English
Service Manual consists of the following:

For Model ZX470-5B, ZX470LCH-5B and ZX520LCH-5B as mentioned above:

Service Manual (Troubleshooting) Vol. No. TOJAA-EN : 818 Pages
Service Manual (Operation) Vol. No. TTJAA-EN : 440 Pages
Workshop Manual Vol. No. WJAA-EN : 712 Pages

Circuit diagram: 15 Pages

SI Units (International System of Units) are used in those manual.

Manual guide composition

Hitachi ZX470-5B service manual consists of the Operating, Troubleshooting and the Workshop Manual.

• Information included in the Service Manual: Technical information needed for redelivery and delivery, operation and activation of all devices and systems, operational performance tests, and troubleshooting procedures.
• Information included in the Workshop Manual: Technical information needed for maintenance and repair of the machine, tools and devices needed for maintenance and repair, maintenance standards, and removal / installation and assemble / disassemble procedures.

To avoid injury and damage refer to the service manual and be sure to use appropriate lifting techniques and equipment when lifting heavy parts.

A ZAXIS hallmark industry-leading hydraulic technologies, and performance no other can beat. New ZAXIS provides reliable solutions: impressive fuel economy, swift front movements, and easy operation. You’ll also find Hitachi technological prowess and expertise, such as the optimized hydraulic system and engine.New ZAXIS features the key benefits of high quality, low fuel consumption, and high durability, all of which serve to ensure low running costs.New ZAXIS, which is empowered by comprehensive evolution, will realize customers visions and dreams, and pioneer your colorful future

Solenoid Valve Extract:

The solenoid valve consists of the 4-spool solenoid valveunit, the 2-spool solenoid valve unit, and the fan pump
control solenoid valve.

4-Spool Solenoid Valve Unit
The 4-spool solenoid valve unit controls the control valve and the valve in travel motor according to the signal from MC (main controller). (Refer to SYSTEM /Control System.)
The 4-spool solenoid valve unit consists of proportional solenoid valves (SC, SF, SI, and SG). SC : Controls the travel motor displacement angle control valve.
SF : Controls the bypass shut-out valve in control valve
SI : Increases pressure of the main relief valve in control valve.
SG : Controls the arm 2 flow rate control valve (switch valve) in control valve.

2-Spool Solenoid Valve Unit
The 2-spool solenoid valve unit controls the control valve according to the signal from MC (main controller).
(Refer to SYSTEM / Control System.)
The 2-spool solenoid valve unit consists of proportional solenoid valves (SC and SI).
(Refer to SYSTEM / Control System.)
SC : Controls the boom overload relief valve (low pressure) in control valve.
SI : Controls the swing flow rate control valve (selector valve) in control valve.