Komatsu 108 Series Diesel Engine Shop Manual

Komatsu 108 Series diesel engine shop manual covers assembly and disassembly, testing, and adjusting procedures. Publication SEBE6221-01.

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Technical Safety Notice
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This official OEM document is intended for professional technicians and skilled operators. Performing service on mechanical equipment involves inherent risks. By purchasing, you acknowledge that RepairLoader provides original manufacturer data for informational purposes. Always prioritize safety: use correct tools, wear protective gear, and consult a certified professional if you are uncertain of any procedure.

Komatsu Models Covered & Key Technical Specifications

Models: S6D108-1, SA6D108-1
Sub-models / Variants: D57S-1, D57S-1B, WA320-3, WA380-3, WA420-3, PC300-5, PC300HD-5, PC360LC-5, EG150BS-5, EG185B-L-1, Sugar cane harvester AUSTOFT, SA6D108-M-1
Build Years: 1998
Serial Numbers: Sugar cane harvester AUSTOFT (Engine No. 10001–10296, 10297 and up)
Technical Data:

  • Engine Configuration: 6-cylinder diesel
  • Displacement: 7.15 liters (7,150 cc)
  • Firing Order: 1–5–3–6–2–4
  • Fuel Injection Pump: Bosch PES-AD or Denso NB (EP-9) type
  • Governor: Bosch or Denso RSV centrifugal, all-speed type
  • Turbocharger Types: Garret TO4E, Schwitzer S2B
  • Electrical System: 24V starting motor and alternator, 12V batteries in series
Technical Specifications
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Document Number / Seller:
28722 / George Thomas
File Size:
10.27 MB
File Type:
ZIP
Language:
English
Printable:
Yes
Category:
Diesel Engine
Last updated / verified
Mar 21, 2025

Komatsu Manual Features & Content Preview

Komatsu 108 Series Diesel Engine Shop Manual

  • This 1998 Komatsu 108 Series shop manual covers the S6D108-1 and SA6D108-1 diesel engine configurations across equipment such as D57S, WA320, WA380, WA420, PC300-5, and EG150BS-5 industrial generators
  • Official Komatsu publication SEBE6221-01, dated September 1998
  • Contains 56 detailed component diagrams, 5 engine performance curves, and 12 comprehensive torque specification tables
  • File link appears in your order confirmation straight away
  • OCR text layer lets you jump to a torque spec by keyword
  • This edition documents the S6D108-1 and SA6D108-1 power plants, including specific details for the AUSTOFT sugar cane harvester and EG150BS-5 generator engine builds

Engine Architecture and Systems

The Komatsu 108 Series shop manual documents the mechanical architecture of the S6D108-1 and SA6D108-1 power plants, focusing on the construction of the engine body, lubrication system, and fuel injection systems. The manual details the structure and function of the cylinder head, the main revolving system including crankshaft and piston assemblies, and the cooling system variations such as inlet-control and outlet-control thermostats. Additional sections describe the mechanical governor, fuel injection nozzles, and the electrical stop motor circuitry, providing clear reference for component identification and functional theory.

Technical Specification Preview

Engine specifications are documented for various models including the D57S-1, WA320-3, and SA6D108-1 variants. Torque values for major assembly joints, including standard bolt tables and specific split-flange data, are provided in both Nm and kgm units to assist in professional engine assembly. The coolant system capacity for the S6D108-1 is documented at 58 liters in specific machine configurations. The intake-control thermostat cracking temperature is listed at 71 ± 2°C. Actuation pressure for the turbocharger safety valve is specified at 147 ± 11 kPa in the technical data section. This manual serves as a definitive resource for technicians and owners requiring factory-authorized mechanical data for the Komatsu 108 series engine family, covering comprehensive disassembly, testing, and maintenance standards for the S6D108-1 and SA6D108-1 builds.

Manual FAQ, Purchase & Download Details

What primary categories and system chapters are organized within this diesel engine shop manual? keyboard_arrow_down

Shop manual contains structured chapters covering the general information, structure and function of components, testing and adjusting, disassembly and assembly, and maintenance standards. These sections are designed to provide technical information for the 108 series engine units.

Is there a specific revision edition mark noted for this Komatsu 108 Series document? keyboard_arrow_down

Document displays the publication reference SEBE6221-01 along with revision tracking indicators on the list of revised pages.

Are there reference tables for electrical wire codes and connector information included in the manual? keyboard_arrow_down

Manual includes an electric wire code section that categorizes wires by thickness, current rating, and color codes for various circuits. This section assists in identifying wiring diagram specifications.

Which conversion tables are provided to assist with interpreting technical service data? keyboard_arrow_down

Manual contains conversion tables for metric and imperial units covering dimensions, weight, torque, pressure, and fluid volumes.

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