1998-2003 Komatsu PC340-6K, PC340LC-6K, PC340NLC-6K Excavator Shop Manual (P/N UEBM000901)
Komatsu Models Covered & Key Technical Specifications
Models: PC340-6K, PC340LC-6K, PC340NLC-6K
Sub-models / Variants: LC (Long Crawler), NLC (Narrow Long Crawler), 6K Series
Model Years: 1998–2003
Serial Numbers: K32001 and up, K34001 and up
Technical Data:
- Engine: SAA6D108E-2, 6-cylinder, water-cooled, direct injection, turbocharged aftercooler
- Piston displacement: 7.145 liters
- Flywheel horsepower: 172.8 kW (231.7 HP) at 2,050 rpm
- Max. torque: 897.2 Nm (91.5 kgm) at 1,500 rpm
- Hydraulic pump type: HPV160+160 variable displacement piston type
- Bucket capacity (SAE/CECE): 1.32 / 1.2 m³
- Max. digging depth: 7,380 mm
- Max. digging reach: 11,100 mm
- Travel speeds: Lo 3.2 km/h, Mi 4.5 km/h, Hi 5.5 km/h
Komatsu Manual Features & Content Preview
- Official 748-page Komatsu shop manual (publication number UEBM000901) for the 1998–2003 PC340-6K, PC340LC-6K, and PC340NLC-6K hydraulic excavators
- Covers models within the K32001 and K34001 and up serial number ranges
- Features comprehensive hydraulic system diagrams, structural specifications, and torque reference tables directly applicable to shop-floor diagnostics
- Details mechanical assembly, testing, and adjustment parameters for major excavator components
Documenting the 1998–2003 Komatsu PC340-6K Series
When servicing heavy-duty hydraulic machines, having exact factory data is critical. The 1998–2003 Komatsu PC340-6K series shop manual delivers the technical reference material required to maintain and troubleshoot these excavators effectively. It maps out the structural functions of engine-related systems, power train components, and complex hydraulic circuits. For instance, you will find specific breakdowns of the CLSS (Closed-center Load Sensing System) to help diagnose efficiency issues. Additional sections outline the disassembly and assembly parameters of the swing machinery, final drives, and track frame assemblies, providing mechanics with an authoritative reference for heavy maintenance work.
Specification Highlights
Precision matters during system calibration and component servicing. This technical document catalogs exact capacities and settings to ensure accurate rebuilds. The engine oil pan capacity is rated at 28.4 liters, while the final drive case holds exactly 10 liters. You will also find critical pressure settings, such as the hydraulic tank relief cracking pressure specified at 16.7 ± 6.9 kPa, alongside cooling capacities for air-cooled configurations. Standardized charts list all required tightening torques for bolts and nuts to guarantee assembly precision. Because heavy machinery repair involves high-pressure hydraulics and massive structural components, always ensure work is guided by a certified technician following industry safety standards before attempting any service on this equipment.
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