Hitachi EX135USR Excavator Shop Manual – PDF

Description

📘 COMPREHENSIVE DOCUMENT OVERVIEW

This comprehensive technical manual 🔧 provides in-depth operational and troubleshooting guidance for the Hitachi EX135USR excavator 🚜. Spanning 755 pages 📄, this digital download 📥 offers invaluable support for certified technicians, service professionals, and experienced mechanics working on this specific model.

The manual is divided into several key sections, each addressing a crucial aspect of the EX135USR. The “Operational Principle” section delves into the inner workings of the machine’s systems, covering control systems, hydraulics, and electrical components. Detailed diagrams and explanations illustrate the function of each component and how they interact within the larger system.

The “Troubleshooting” section is a vital resource for diagnosing and resolving issues. It features a systematic approach, starting with symptom identification and guiding you through diagnostic procedures. Fault codes, their meanings, and corrective actions are clearly outlined, aided by Dr.EX diagnostics. The manual also includes troubleshooting guides based on specific symptoms, even when Dr.EX doesn’t provide fault codes. This section includes valuable tables correlating symptoms to potential part failures.

Additional sections provide detailed specifications for the EX135USR, covering engine parameters, hydraulic device measurements, electrical component details, and more. Working ranges, lifting capacities, and other essential data are readily accessible. Furthermore, the manual emphasizes safety procedures ⚠️ throughout, highlighting potential hazards and necessary precautions to ensure safe operation and maintenance.

A standout feature is the incorporation of Dr.EX diagnostic information. The manual guides you through connecting and using Dr.EX to retrieve fault codes and monitor real-time system performance. It also details the “Service Mode” of Dr.EX for adjusting specific machine parameters.

🔧 TECHNICAL SPECIFICATIONS & COVERAGE

• Equipment Model: Hitachi EX135USR Excavator
• Engine: ISUZU A-4BG1T, Diesel, 4-cycle, water-cooled, direct injection
  (62.5 kW/2100 min^-1 (85 PS/2100 rpm) standard, 66.2 kW/2200 min^-1 (90 PS/2200 rpm) HP mode)
• Hydraulic System: Variable displacement plunger pumps (HPV050FW), pilot pressure operated control valve (4-spool + 5-spool), swing motor (AP5S67), travel motors (HMV075CF-18A)
• Electrical System: 24V system, battery relay, glow relay, alternator, various sensors and switches
• Transmission: Two-stage planetary reduction gear for swing and travel
• Special Tools: Dr.EX diagnostic tool, pressure gauges, various adapters and connectors (specific part numbers provided)

📋 MANUAL SECTIONS & PROCEDURES

• Engine Service and Testing: Speed tests, compression tests, valve adjustments, nozzle checks, injection timing
• Excavator System Tests: Travel speed, swing speed, mistrack check, drift checks, hydraulic cylinder cycle times
• Hydraulic Component Testing: Pump flow and pressure tests, swing motor and travel motor drainage checks
• Control System Procedures: Engine, pump, and valve control operation and adjustments
• Troubleshooting Guides: Diagnostic procedures with fault codes (using Dr.EX) and symptom-based troubleshooting
• Electrical System Inspection: Wiring diagrams, connector information, fuse and relay checks
• Safety Precautions: Detailed safety warnings and procedures emphasized throughout

❌ WHAT’S NOT INCLUDED

• Physical Printed Manual: This is a digital download only.
• Technical Support: This manual does not include real-time technical support or consultation.
• Warranty: This manual does not provide any warranty coverage or guarantee repairs.

📊 COMPREHENSIVE RECOMMENDATION SUMMARY

❓ FREQUENTLY ASKED QUESTIONS

📋 SEO Schema for Google:

💬 Customer Questions & Answers:

Q: What specific models and years does this manual cover?
A: This manual is specifically designed for the Hitachi EX135USR excavator. The year range isn’t explicitly stated, but the copyright date suggests 1998 as a reference point.

Q: What types of maintenance and repair procedures are included?
A: This manual covers a wide range of procedures, including engine diagnostics, hydraulic system tests, component testing, troubleshooting guides, electrical system inspections, and detailed explanations of the operational principles of various systems.

Q: Is this manual suitable for DIY mechanics or is it for professionals only?
A: Due to the highly technical nature of the content and the specialized procedures described, this manual is best suited for professional technicians and experienced mechanics.

Q: What format is this manual in and how do I access it?
A: This manual is a digital download in PDF format. You will have instant access to the download after completing your purchase.

Q: Are there special tools or diagnostic equipment requirements?
A: Yes, the manual makes frequent reference to the Dr.EX diagnostic tool. Additionally, it specifies various pressure gauges, adapters, and connectors (part numbers included) needed for some of the testing procedures.

Q: Does this manual include wiring diagrams and hydraulic schematics?
A: Yes, the manual incorporates various technical diagrams and schematics, including wiring diagrams and hydraulic circuit diagrams, to aid in understanding and troubleshooting.

Q: Is the manual language technical or user-friendly?
A: The language is primarily technical, tailored for experienced mechanics and technicians familiar with hydraulic and electrical systems.

Q: Can I print this manual or use it offline?
A: Yes, as a PDF document, you can print the entire manual or specific sections as needed. It’s also suitable for offline use on any device capable of viewing PDFs.

🛠️ PROFESSIONAL ASSESSMENT & USABILITY

• Overall Quality Rating: Excellent – Comprehensive, accurate, and professionally presented.
• Content Classification: General manual for the Hitachi EX135USR Excavator
• Language & Accessibility: Technically focused; assumes a base level of mechanical knowledge.
• Professional Recommendation: Highly recommended for all technicians working on the EX135USR; essential for diagnostics and troubleshooting.
• Technical Depth: Very detailed – Covers operational principles, testing, and troubleshooting in depth.
• Page Count & Scope: 755 pages covering a wide range of systems and procedures.
• File Quality & Format: High-resolution digital PDF optimized for easy navigation and printing.
• Update Status: Based on a 1998 copyright, it may require supplementary information for more recent modifications or updates to the machine.

🎯 IDEAL USE CASES & APPLICATIONS

• Professional repair shops servicing Hitachi EX135USR excavators.
• Field technicians performing on-site diagnostics and troubleshooting.
• Maintenance managers creating preventative maintenance schedules.
• Parts departments identifying and ordering replacement components.
• Training programs educating new technicians on excavator systems and procedures.
• Safety officers ensuring equipment compliance and safe operation.

📋 Original Product Description:

Hitachi EX135USR Excavator Shop Manual

DESCRIPTION:

This manual is written for an experienced technician to provide technical information needed to maintain and repair this machine. – Be sure to thoroughly read this manual for correct product information and service procedures.

This manual consists of three portions: the lecnnlcal Manual (Operational Principle). the Technical Man- ual (Troubleshooting) and the Workshop Manual. – Information included in the Technical Manual (Operational Principle): technical information needed for redeliver and de- livery, operation and activation of all devices and systems.

IMAGES:

TABLE OF CONTENTS:

Specifications
Working Ranges and Machine
Dimensions for Transportation
Component Specifications
3roup 2 Component Layout
Main Components
Electrical System (Overall System)
Electrical System (Relays)
Electrical System
(Monitor and Switch Panels)
Pump and Related Parts
Other Components