Hitachi ZX330-5G, ZX330LC-5G and ZX350LCH-5G ZAXIS Excavator Manual

The manual is applicable for the Hitachi Excavator Model:

• ZX330-5G
• ZX330LC-5G
• ZX350H-5G
• ZX350LCH-5G
• ZX350K-5G
• ZX350LCK-5G

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

For Model ZAXIS ZX330-5G, ZX330LC-5G, ZX350H-5G, ZX350LCH-5G, ZX350K-5G and ZX350LCK-5G as mentioned above:

Service Manual (Troubleshooting) : Vol. No.TODDE-EN (444 Pages)
Service Manual (Operation) : Vol. No.TTDDE-EN (346 Pages)
Workshop Manual : Vol. No.WDDE-EN (526 Pages)

Circuit Diagram: 13 Pages

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

Manual guide composition

Hitachi ZAXIS ZX330-5G, ZX330LC-5G, ZX350H-5G, ZX350LCH-5G, ZX350K-5G and ZX350LCK-5G 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

Flow Rate Increase Instructions Extract:

1. When a control lever is operated, the flow rate control valve in the signal control valve is shifted and pump control pressure Pi increases.
2. Piston (4) pushes spool A (3) and spring (1) so that spool A (3) is moved toward direction of the arrow.
3. Due to the movement of spool A (3), the circuit from the large chamber of servo piston (10) is opened to the hydraulic oil tank.
4. As primary pilot pressure Pg is constantly routed to the small chamber of servo piston (10), servo piston (10) is moved toward direction of arrow (a). Therefore, the cylinder block is rotated in the maximum inclination direction and the pump delivery flow rate increases.
5. The movement of cylinder block is transmitted to sleeve A (2) via link (12). Sleeve A (2) is moved in the same direction as spool A (3).
6. When sleeve A (2) is moved by the same stroke as spool A (3), the open part between spool A (3) and sleeve A (2) is closed and the circuit from large chamber of servo piston (10) to the hydraulic oil tank is closed.
Therefore, servo piston (10) is stopped and the flow rate increasing operation is completed.