Description

Hitachi ZX125US, ZX135US, ZX135UR Excavator Service Manual

The manual is applicable for the ZX125US, ZX135US, ZX135UR Excavator Model

Format: PDF
Language: English

• Hitachi ZX125US, ZX135US, ZX135UR Excavator Parts Catalog – 602 Pages
• Hitachi ZX125US, ZX135US, ZX135UR Excavator Troubleshooting Manual – 477 Pages
• Hitachi ZX125US, ZX135US, ZX135UR Excavator Operation Manual – 318 Pages
• Hitachi ZX125US, ZX135US, ZX135UR Excavator Workshop Manual – 748 Pages

Table of Content of the Hitachi ZX125US, ZX135US, ZX135UR Excavator Workshop Manual

SECTION 1 GENERAL
Group 1 Precautions for Disassembling
and Assembling
Group 2 Tightening Torque
Group 3 Painting
SECTION 2 UPPERSTRUCTURE
Group 1 Cab
Group 2 Counterweight
Group 3 Main Frame
Group 4 Pump Device
Group 5 Control Valve
Group 6 Swing Device
Group 7 Pilot Valve
Group 8 Pilot Shut-Off Valve
Group 9 Signal Control Valve
Group 10 Solenoid Valve
Group 11 Holding Valve
SECTION 3 UNDERCARRIAGE
Group 1 Swing Bearing
Group 2 Travel Device
Group 3 Center Joint
Group 4 Track Adjuster
Group 5 Front Idler
Group 6 Upper and Lower Roller
Group 7 Track
SECTION 4 FRONT ATTACHMENT
Group 1 Front Attachment
Group 2 Cylinder
SECTION 5 ENGINE
This is only an extract of the Table of content and not the whole table.

Hitachi ZAXIS ZX125US, ZX135US, ZX135UR service manual consists of the 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.

Exchange inspection method is a troubleshooting method for ZX125US, ZX135US, ZX135UR to find the trouble location by exchanging the suspected part / component with another part /component having identical characteristics.
Many sensors and solenoid valves used on this machine are identical. Therefore, using this switch-check method, faulty part /component, and/or harness can be easily found.
Example: Abnormal pump 1 delivery pressure (Fault code: 10)
Check Method:
1. Switch two delivery pressure sensors located as shown in figure A to figure B.
2. Retry troubleshooting.
Result:
In case the pump 2 delivery pressure is abnormal (fault code 11), the pump 1 delivery pressure sensor is considered to be faulty.
In case the pump 1 delivery pressure is abnormal (fault code 10), the pump 1 delivery pressure sensor harness is considered to be faulty.