Komatsu PC128US-2 / PC138US-2 / PC138USLC-2 Excavator Service Manual, Printable, 1028 Pgs, 134.60 MB, PDF
This comprehensive service manual covers the PC128US-2, PC138US-2, and PC138USLC-2 excavators, providing detailed diagnostics, maintenance, and repair procedures. Includes diagrams and specifications for all major systems.
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Sample pages from the Komatsu PC128US-2 / PC138US-2 / PC138USLC-2 Excavator Service Manual, Printable, 1028 Pgs, 134.60 MB, PDF manual
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Models Covered & Key Technical Specifications
Komatsu PC128US-2 / PC138US-2 / PC138USLC-2 Excavator Service Manual - Diagnostics, Maintenance & Repair Procedures This comprehensive service manual covers the PC128US-2, PC138US-2, and PC138USLC-2 excavators, providing detailed diagnostics, maintenance, and repair procedures. Includes diagrams and specifications for all major systems. | Komatsu Excavator Repository
- General Specifications: Machine weight of 12,950 kg (standard) for the PC128US-2.
Professional Workshop Service Manual & Technical Specifications
Komatsu PC128US-2 / PC138US-2 / PC138USLC-2 Excavator Service Manual: Diagnostics, Maintenance & Repair Procedures
Subsystem-Focus: Component identification and system operation logic // Reference-Category: Excavator Operation Manual / Hydraulic System Logic // Engineering-Metrics: Dimensional specifications and component ratings.
Systems This manual thoroughly documents the various systems within the Komatsu PC128US-2, PC138US-2, and PC138USLC-2 excavators. It details hydraulic components, the power train, engine systems, and electrical systems, ensuring comprehensive understanding.
Procedures The manual details essential procedures for maintenance and repair. It includes disassembly and assembly instructions, testing and adjusting methods, and calibration procedures for critical systems, ensuring proper machine upkeep.
Introduction to Specifications This section provides an overview of the manual's content, including a general assembly drawing, detailed specifications, and a weight table. It also lists lubricants and water requirements for various components.
| Technical Specs Table | Identifier | Operational-Logic | Logic |
|---|---|---|---|
| Machine weight | Standard specification | 12,950 kg | |
| Bucket capacity | Blade specification | 0.45 m³ | |
| Engine type | Komatsu S4D102E-1 Diesel engine | — | |
| Engine rated output | Standard specification | 64 kW {85.8 HP}/2,200 rpm |
TOC Summary Engineering chapters address:
- STRUCTURE AND FUNCTION
- TESTING AND ADJUSTING
- DISASSEMBLY AND ASSEMBLY
- MAINTENANCE STANDARD
- OTHERS
Component and System Details The manual provides detailed explanations of various hydraulic components, including the hydraulic pump, control valve, and travel motor. It describes their functions and operational principles within the excavator's hydraulic system.
Torque Specifications This manual documents torque specifications for various fasteners and components, such as standard tightening torque for bolts and nuts, and torques for flared nuts, to ensure proper assembly and clamp load consistency.
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