1991 and Up Komatsu PC25-1, PC30-7, PC40-7, PC45-1 - Excavator Service & Repair Manual
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Sample pages from the 1991 and Up Komatsu PC25-1, PC30-7, PC40-7, PC45-1 - Excavator Service & Repair Manual manual
Purchase Information
Komatsu PC Series Shop Manual - PC25-1, PC30-7, PC40-7, PC45-1 - Technical Specifications
- Document Number / Seller:
- 30177 / Karen Williams
- File Size:
- 22.40 MB
- File Type:
- Language:
- English (some of our manuals are multilingual)
- Pages:
- 387
- Printable:
- Yes
- Estimated Download Time:
- 0.46 Minutes
- Delivery Format:
- Digital (PDF) - Instant Access
- Category:
- Mini Excavator
- Brand:
- Komatsu
- Reviewed and Approved:
- Dec 22, 2025
Komatsu Models and Parts Covered in this Mini Excavator Manual
- PC25-1 (1996)
- PC30-7 (1996)
- PC40-7 (1996)
- PC45-1 (1996)
Complete Manual Information
Komatsu PC Series Professional Shop Manual: PC25-1, PC30-7, PC40-7, and PC45-1
This high-quality, 175-page professional shop manual is the definitive resource for maintaining and repairing the Komatsu PC series hydraulic excavators. Specifically compiled for the 1996 model year and printed in Japan, this manual provides deep-level technical insights that go far beyond basic operator instructions. It is an indispensable tool for heavy equipment mechanics, fleet managers, and dedicated owner-operators who demand peak performance and longevity from their Komatsu machines.
Compatible Machine Models & Serial Numbers
This manual provides precise technical coverage for the following machine and engine combinations:
- PC25-1 (Serial No. 1001 and up) – Powered by the 3D84-3 engine
- PC30-7 (Serial No. 18001 and up) – Powered by the 3D84-3 engine
- PC40-7 (Serial No. 18001 and up) – Powered by the 4D84-3 engine
- PC45-1 (Serial No. 1001 and up) – Powered by the 4D84-3 engine
Comprehensive Technical Sections
The manual is structured into four primary chapters, each designed to facilitate rapid diagnostics and professional-grade repairs:
- Structure and Function: Gain a complete understanding of how your machine works. This section covers the power train, swing circle, hydraulic piping diagrams, and detailed breakdowns of the 7-spool and 2-spool control valves.
- Testing and Adjusting: Master the art of troubleshooting. Includes standard judgment values for engines (high/low idling speeds, compression pressures), fuel injection timing, and hydraulic pressure settings for work equipment and travel circuits.
- Disassembly and Assembly: Execute complex repairs with confidence. This section provides the exact order for removing and installing major components, including the swing machinery, hydraulic pumps (SBR and A10VD series), and travel motors (PHX and GM series).
- Maintenance Standards: Ensure your excavator remains within factory specifications. Detailed tables list wear limits, standard tightening torques for bolts and flared nuts, and clearance standards for all hydraulic cylinders (Boom, Arm, Bucket, Blade, and Swing).
Professional Value-Add Features
- Fluid & Lubricant Specifications: Complete list of refill capacities for engine oil, hydraulic systems, fuel tanks, and cooling systems, including SAE classifications and ambient temperature guides.
- Electrical Diagrams: Full electrical circuit diagrams including wire color codes (e.g., White/Red, Black/White) and thickness classifications for precise electrical troubleshooting.
- Torque & Conversion Data: Includes standard tightening torque charts for all thread diameters and comprehensive conversion tables (Millimeters to Inches, Kilograms to Pounds, Liters to Gallons).
- Weight Tables: Precise weight data for all major components (Engine, Revolving Frame, Counterweights, etc.) to ensure safe hoisting and transport.
Product Specifications
- Content: Full Shop Manual (Chassis Volume)
- Total Pages: 175
- Language: English (US)
- Format: Professional Reference Guide
- Focus: Repair, Maintenance, and Technical Data
Download Instructions for Komatsu Mini Excavator Manual
Frequently Asked Questions - Komatsu Mini Excavator Manual
What does this Komatsu manual cover?
This comprehensive service manual covers detailed repair procedures, maintenance schedules, troubleshooting guides, and technical specifications for 1991 and Up Komatsu PC25-1, PC30-7, PC40-7, PC45-1 - Excavator Service & Repair Manual. It includes information for the following models: - PC25-1 (1996) - PC30-7 (1996) - PC40-7 (1996) - PC45-1 (1996).
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 Mini Excavator maintenance and repair.
What file format will I receive?
You will receive this manual as a PDF file (22.40 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 Mini 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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