2001-present Komatsu PC160-6K / PC180LC / PC180NLC-6K Service Manual (P/N UEBM000601)
692 Pages • 12.85 MB • Instant, Printable PDF
Komatsu Models Covered & Key Technical Specifications
Models: Komatsu PC160-6K, Komatsu PC180LC-6K, Komatsu PC180NLC-6K
Sub-models / Variants: 6K Series, LC (Long Crawler), NLC (Narrow Long Crawler)
Model Years: 2001–present
Serial Numbers: K32001 and up, K34001 and up
Technical Data:
- Engine model: Komatsu SA4D102E
- Engine configuration: 4-cylinder, 4-cycle, water-cooled, in-line, vertical, direct injection, with turbocharger
- Engine displacement: 3920 cc
- Flywheel horsepower: 80 kW (109 HP) at 2100 rpm
- Bucket capacity: 0.58 m³ (PC160-6K), 0.67 m³ (PC180LC-6K)
- Electrical system: 24V, 55A alternator, 12V / 95 Ah x 2 batteries
- Swing speed: 12 rpm
- Hydraulic system type: CLSS (Closed center Load Sensing System)
- Main pump type: Variable displacement piston type X1, gear type X1
Komatsu Manual Features & Content Preview
- Covers the 2001–present Komatsu PC160-6K and PC180LC/180NLC-6K excavators (serial number series K32001 and K34001)
- Official Komatsu publication P/N UEBM000601, printed in Belgium 09-01
- 692 pages of technical schematics, system descriptions, and maintenance standards
- Documents specific SA4D102E engine integration requirements for standard and NLC variants
Technical Documentation Structure
The service manual delivers organized technical intelligence across five core chapters. Built for daily workshop use, it equips technicians with the exact specification tables and weight charts needed to plan lifts and handle major assemblies efficiently. Structure and function chapters break down the operation of the hydraulic circuit, power train components, and the Closed-center Load Sensing System (CLSS). Need to verify system performance? The testing and adjusting section outlines critical benchmarks. It also details disassembly and assembly sequences for structural repair. Finally, the manual documents the mandatory maintenance standards required for inspecting worn parts. Working on heavy machinery carries inherent physical risks, so mechanics must thoroughly review these factory standards and adhere to strictly established safety protocols prior to initiating any teardown.
Engineering and Specification Highlights
Drilling down into the specifics, the manual details the SA4D102E engine performance. You will find the maximum torque output documented at 474 Nm at 1400 rpm, alongside a 20-liter cooling system capacity. For global service compatibility, comprehensive bolt torque charts provide values in both kgm and Nm. Precision matters during system assembly. Therefore, swing machinery reduction ratios are clearly listed at 22.667. The documentation also covers the 6-spool and 1-service valve hydraulic configurations typical of these excavators, along with the standard 3.92 MPa (40 kg/cm²) unload valve pressure setting for neutral lever positions.
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