Komatsu PC200/PC220/PC250 Excavator Shop Manual 721 Pages
Technician-level documentation for Komatsu excavators including PC200-6, PC200LC-6, PC210LC-6, PC220LC-6, and PC250LC-6 models. Comprehensive hydraulic system, electrical wiring, and component repair procedures. PN CEBMX20601
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Models Covered & Key Technical Specifications
Komatsu PC200-6, PC200LC-6, PC210LC-6, PC220LC-6, PC250LC-6 Excavator — 1996 Precision Engineering Repository | Excavator Series Collection.
- Reference Output Density: 99 kW (133 HP) at 2,200 rpm is standardized to the maximum rated horsepower Framework.
- Integral Rotational Force: For optimal digging performance, 490 N·m (50 kgm) at 1,600 rpm is rated at peak engine torque Threshold.
- General Containment Volume: The hydraulic system requires 230 L (61 US gal) total capacity for standard operation Mapping.
- Essential Current Rating: Engine displacement sets 4,891 cc with 6 cylinders at 95 x 115 mm bore x stroke Configuration.
- Baseline Speed Rating: Maximum operating weight is calibrated to 19,900 kg for the PC200-6 base model Benchmarks.
- Fundamental Native Resolution: Maximum digging depth specifies 6,620 mm (21'9") excavation reach for standard bucket operations Range.
Professional Workshop Service Manual & Technical Specifications
Complete Factory Hydraulic Manual: Komatsu PC200-6, PC200LC-6, PC210LC-6, PC220LC-6, PC250LC-6 Excavator Field-Reference
Model-Specs: PC200-6, PC200LC-6, PC210LC-6, PC220LC-6, PC250LC-6 // Diagnostic-Area: Comprehensive Technical Documentation / Hydraulic & Mechanical Systems Logic // System-Identifier: Electronic Control Integration with Dual Main Pump Architecture.
| Specification | Parameters | Validation-Data |
|---|---|---|
| Engine Type | 6-cylinder in-line, water-cooled turbo diesel with aftercooler (SA6D95L-1) | Complete engine specifications provided |
| Hydraulic System | Dual variable displacement main pumps, 199-section technical breakdown | Full circuit diagrams and relief settings documented |
| Travel & Swing | Load sensing control with proportional solenoid electronics | Operating pressures and performance data included |
| Work Equipment | Boom, arm, bucket cylinders with holding valves | Torque specifications and seal specifications included |
| Electronic Control | Engine throttle controller, pump controller, monitor panel networking | Real-time sensor integration and fault code reference data |
The repository is divided into systematic sections detailing engine structure and function, interconnected with testing and adjustment procedures, operating alongside disassembly and assembly protocols, while maintenance standards guide inspection metrics. Systematic procedures address control valve spool positioning during compound operations, with pressure compensation functioning to balance load forces across actuators during simultaneous work equipment movement.
Disassembly instructions are documented for the main hydraulic pump assembly, featuring variable displacement piston architecture with servo piston control and swash plate angle modulation. Wear limits are specified for pump component dimensional standards, cylinder seal configurations, and pilot pressure thresholds during transient load conditions. System operation descriptions cover the closed-center load sensing (CLSS) principle, wherein pump discharge adjustment responds automatically to differential pressure variance between pump output and actuator load demands. The documentation addresses engine speed governing through fuel injection timing control, automatic warming-up protocols, and overheat prevention with two-stage pressure management. Assembly instructions are detailed for swing circle bearing installation with grease sealing specifications, track frame assembly sequencing, and electrical connector integration with proper torque specifications.
The manual documents torque specifications for hydraulic component fasteners to ensure proper seal compression uniformity, preventing internal leakage and maintaining circuit pressure integrity during peak digging and travel operations. Electronic control integration is provided through detailed wiring diagrams showing sensor inputs for hydraulic pressure monitoring, engine speed detection, and work equipment load sensing, with network communication logic enabling coordinated pump and valve response. Comprehensive troubleshooting charts organize failure modes by electrical system (E-mode), engine performance (S-mode), pump controller circuits (C-mode), input signal diagnostics (F-mode), and hydraulic mechanical systems (H-mode), supported by judgment tables correlating symptoms to component-level inspection procedures.
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