Komatsu PC340-6K, PC340LC-6K & PC340NLC-6K Hydraulic Excavator - Shop Manual (1998-2003)
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Sample pages from the Komatsu PC340-6K, PC340LC-6K & PC340NLC-6K Hydraulic Excavator - Shop Manual (1998-2003) manual
Purchase Information
Technical Specifications
- Document Number / Seller:
- 30244 / Sandra Stewart
- File Size:
- 28.36 MB
- File Type:
- Language:
- English
- Pages:
- 748
- Printable:
- Yes
- Estimated Download Time:
- 0.58 Minutes
- Delivery Format:
- Digital (PDF) - Instant Access
- Category:
- Excavator
- Brand:
- Komatsu
- Reviewed and Approved:
- Dec 27, 2025
Komatsu Models and Parts Covered in this Excavator Manual
- PC340-6K (1998-2003)
- PC340LC-6K (1998-2003)
- PC340NLC-6K (1998-2003)
- PC340-6K Avance (1998-2003)
- PC340LC-6K Avance (1998-2003)
- PC340NLC-6K Avance (1998-2003)
- PC340-6K Galeo (2001-2003)
- PC340LC-6K Galeo (2001-2003)
- PC340NLC-6K Galeo (2001-2003)
Complete Manual Information
Komatsu PC340-6K, PC340LC-6K & PC340NLC-6K Avance Hydraulic Excavator Shop Manual
Maximize the uptime and performance of your heavy-duty equipment with this professional-grade Shop Manual. This comprehensive technical volume (Publication No. UEBM000901) is specifically engineered for the Komatsu PC340 series, providing factory-level insights for the "Dash-6" generation. Whether you are managing a fleet or performing a complex hydraulic overhaul, this manual delivers the precision data required to maintain the structural integrity and operational efficiency of your excavator.
The PC340-6K series is renowned for its high productivity and reliability. This manual covers the advanced "Avance" and "Galeo" design standards, focusing on the sophisticated SAA6D108E-2 engine and the high-precision CLSS hydraulic system.
Precision Model & Serial Number Coverage
This shop manual is the official reference for the following Komatsu machine models and specific serial number ranges:
- PC340-6K: Serial Number K32001 and up, K34001 and up
- PC340LC-6K: Serial Number K32001 and up, K34001 and up
- PC340NLC-6K: Serial Number K32001 and up, K34001 and up
This documentation is vital for ensuring that repairs are performed to the exact specifications required for these specific production runs.
Deep Technical Content & Shop Standards
This manual is organized into structured modules designed for rapid technical reference:
- Structure and Function (Section 10): Detailed breakdowns of the PTO (Power Take-Off), Swing Machinery, and Travel Motors. Includes technical explanations of the Control Valve blocks and the Electronic Control System.
- Testing and Adjusting (Section 20): Standard value tables for engine speeds, hydraulic relief pressures, and exhaust color checks. Learn the correct procedure for "Bleeding Air" from the high-pressure pump and cylinders.
- Disassembly and Assembly (Section 30): Step-by-step installation guides for major components, including the final drives, hydraulic pump, and boom/arm assemblies.
- Maintenance Standards (Section 40): Contains critical wear limits and tolerance data. For example, specific bushing clearances for the bucket links (0.5 – 1.0 mm) and arm pins are detailed to prevent premature failure.
- Others (Section 90): Includes vital circuit diagrams and hydraulic schematics, plus a comprehensive connector arrangement diagram for electrical troubleshooting.
Why This Shop Manual Is Essential
- Proprietary Technology: Detailed insights into the SAA6D108E-2 engine integration and the specialized cooling systems used in the 6K series.
- Safety First: Includes a dedicated "Important Safety Notice" section covering proper jacking, high-pressure hydraulic safety, and battery maintenance.
- Cost Reduction: By following the manufacturer's testing and adjusting procedures, you can identify minor issues before they become catastrophic engine or pump failures.
- Unique Specifics: Includes the "Automatic Horizontal Excavation Control" details and electronic control system specifics unique to the Komatsu Avance series.
Equip yourself with the same documentation used by factory-trained Komatsu technicians. This manual ensures that every bolt is torqued to standard and every hydraulic circuit is balanced for peak digging force and fuel economy.
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Frequently Asked Questions - Komatsu Excavator Manual
Is this manual suitable for beginners?
Yes, this Komatsu 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 (28.36 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 Komatsu 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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