Hitachi EX270 & EX270LC Hydraulic Excavator Technical Manual 1988-1993
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Sample pages from the Hitachi EX270 & EX270LC Hydraulic Excavator Technical Manual 1988-1993 manual
Purchase Information
1988-1993 Hitachi EX270 & EX270LC Hydraulic Excavator Technical Manual - Technical Specifications
- Document Number / Seller:
- 31003 / Donna Young
- File Size:
- 46.45 MB
- File Type:
- Language:
- English
- Pages:
- 1062
- Printable:
- Yes
- Estimated Download Time:
- 0.95 Minutes
- Delivery Format:
- Digital (PDF) - Instant Access
- Category:
- Excavator
- Brand:
- Hitachi
- Reviewed and Approved:
- Dec 27, 2025
Hitachi Models and Parts Covered in this Excavator Manual
- Hitachi EX270 (1988-1993)
- Hitachi EX270LC (1988-1993)
- Hitachi EX270-1 (1988-1993)
- Hitachi EX270LC-1 (1988-1993)
Complete Manual Information
Hitachi EX270 & EX270LC Hydraulic Excavator - Technical Service Manual
The Professional Authority for Maintaining and Repairing Your Hitachi EX-Series Excavator
Maximize the operational life and efficiency of your heavy machinery with the official Hitachi Technical Manual for the EX270 and EX270LC series. This high-level technical resource is engineered specifically for fleet owners, professional mechanics, and service technicians who require factory-accurate data to perform everything from routine fluid analysis to complex hydraulic system overhauls.
Covering the robust 1988-1993 production era, this manual provides a deep-dive into the mechanical architecture of the EX270, ensuring that your excavator remains a reliable asset on high-demand job sites. This is the primary reference used by dealership technicians, offering a level of detail that goes far beyond standard operator handbooks.
Precision Model Coverage
This technical library is specifically tailored for the first-generation EX-series heavy excavators:
- Hitachi EX270 Hydraulic Excavator (Standard Configuration)
- Hitachi EX270LC Hydraulic Excavator (Long Carriage variant for enhanced stability and lower ground pressure)
Expert Technical Features & Value
- Hydraulic System Engineering: Comprehensive data on the high-pressure pump configurations, control valve logic, and swing motor maintenance.
- Undercarriage & Superstructure: Detailed service procedures for the track frames, idlers, and the heavy-duty swing bearing assembly.
- Electrical Diagnostics: Full-scale wiring schematics and component locations to identify and resolve electrical faults quickly, minimizing expensive downtime.
- Engine Integration: Complete specifications and maintenance standards for the powerhouse diesel engine that drives the EX270 series.
- Technical Reference Standards: Includes essential torque references (Group SP84-3) to ensure every bolt and fastener is secured to factory safety standards.
Detailed Section Breakdown
The manual is logically organized into eleven specialized sections for efficient workshop navigation:
- Section 1 - How to Use: Manual navigation, symbols, and safety information.
- Section 2 - Specifications: General machine dimensions and detailed component specifications for the EX270 series.
- Section 3 - General Maintenance: Factory-recommended service intervals and inspection protocols.
- Section 4 - Superstructure: In-depth repair data for the upper frame and rotating assembly.
- Section 5 - Undercarriage: Service guidelines for the track system and final drives.
- Section 6 - Front-End Attachments: Maintenance for the boom, arm, and bucket assemblies.
- Section 7 - Hydraulic System: Technical analysis of the circuit logic and hydraulic component repair.
- Section 8 - Electrical System: Full electrical architecture and harness routing.
- Section 9 - Troubleshooting: Structured diagnostic paths to isolate mechanical and hydraulic failures.
- Section 10 - Engine: Engine-specific overhaul and maintenance procedures.
Why This Technical Manual is Essential
In the world of heavy excavation, precision is the key to profitability. This manual allows you to perform advanced diagnostics in-house, preventing unnecessary part swapping and reducing labor costs. By adhering to the factory-sanctioned maintenance standards, you protect the structural integrity of your Hitachi EX270 and ensure it delivers the digging force and cycle times it was designed for.
Technical Manual Data:
- Manual Type: Professional Technical Service Manual
- Series: EX270-1 / EX270LC-1
- Language: US English
- Format: High-Resolution Technical Resource
Equip your service team with the official Hitachi technical knowledge today and secure the long-term performance of your EX270 fleet.
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Frequently Asked Questions - Hitachi Excavator Manual
What does this Hitachi manual cover?
This comprehensive service manual covers detailed repair procedures, maintenance schedules, troubleshooting guides, and technical specifications for Hitachi EX270 & EX270LC Hydraulic Excavator Technical Manual 1988-1993. It includes information for the following models: - Hitachi EX270 (1988-1993) - Hitachi EX270LC (1988-1993) - Hitachi EX270-1 (1988-1993) - Hitachi EX270LC-1 (1988-1993).
Is this manual suitable for beginners?
Yes, this Hitachi manual is designed for both professional technicians and DIY enthusiasts. It includes step-by-step procedures with clear illustrations and safety guidelines for Excavator maintenance and repair.
What file format will I receive?
You will receive this manual as a PDF file (46.45 MB), which is compatible with all devices. The manual is fully searchable and printable for your convenience.
How quickly can I access the manual after purchase?
You'll receive instant access to your Hitachi Excavator manual immediately after payment completion. The download link is valid for 3 days, with lifetime re-download guarantee.
Can I print specific sections of the manual?
Absolutely! This digital manual allows you to print any section you need, from individual pages to complete chapters, making it perfect for workshop use.
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