Hitachi ZAXIS 110/120/125US/135US/135UR Workshop Manual PDF Download

Description

Manual Overview

This is the comprehensive Workshop Manual (Vol. No. W187E) for Hitachi ZAXIS series excavators, specifically covering the ZAXIS 110, 110-E, 120, 120-E, 125US, 135US, and 135UR models. This technical document is part of the Service Manual (Manual No. KM-187E) and provides the detailed technical information required for maintenance, repair, disassembly, and assembly of the machine. It is an essential resource for professional technicians and serious owners looking to perform in-depth service and repairs.

Models & Equipment Covered

This manual is applicable to the following Hitachi excavator models:

• ZAXIS 110, 110-E
• ZAXIS 120, 120-E
• ZAXIS 125US
• ZAXIS 135US
• ZAXIS 135UR

Main Systems & Subjects Included

The manual covers all major machine systems and components, including but not limited to:

• Upperstructure: Cab removal/installation, counterweight, pump device (disassembly/assembly), control valve (4-spool/5-spool), swing device, pilot valves, solenoid valves.
• Undercarriage: Swing bearing, travel device and motor, center joint, track adjuster, front idler, upper and lower rollers, track removal and installation.
• Front Attachment: Removal/installation of the entire front attachment, boom cylinder, arm cylinder, bucket cylinder, and offset/blade cylinders (for ZAXIS135UR).
• Engine & Accessories: General repair instructions, main data, specifications, tightening torque, and detailed engine overhaul procedures (disassembly, inspection, reassembly).

Repair & Maintenance Coverage

This workshop manual is designed for experienced technicians and provides step-by-step procedures for a complete range of service tasks, including:

• Detailed removal and installation instructions for all major components.
• Comprehensive disassembly and assembly procedures for pumps, motors, valves, and cylinders.
• Maintenance standards and allowable limits for wear parts.
• Specified tightening torques for bolts, nuts, and piping joints.
• Hydraulic circuit pressure release and air bleeding procedures.
• Painting specifications and periodic replacement schedules for critical parts like hoses.
• Extensive troubleshooting guides and inspection standards.

Why This Manual Is Useful

This manual is the definitive factory-level resource for maintaining and repairing your Hitachi excavator. By following the precise, step-by-step instructions and torque specifications, you can confidently perform complex repairs such as engine overhauls, hydraulic system component replacements, and undercarriage rebuilds, saving thousands of dollars in dealership service costs. It ensures you have the correct technical data to keep your machine in optimal working condition.

Instant PDF Download

This is a digital download in PDF format. You will receive the entire manual instantly after purchase, ready to use on your computer, tablet, or smartphone. No shipping delays, no waiting.