Hitachi ZX470-5B, ZX470LCH-5B & ZX520LCH-5B Repair Manuals PDF

ZX470-5B
ZX470LC-5B
ZX470H-5B
ZX470LCH-5B
ZX470R-5B
ZX470LCR-5B
ZX520LCH-5B
Service Repair Manual consists of the following:
See description for full details
Hitachi ZX470-5B, ZX470LCH-5B and ZX520LCH-5B Excavator Manual
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.

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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.