Komatsu SA6D140E-3 Diesel Engine Service Manual

Technical Scope of the 140-3 Series Engine Manual

• Covers the 2003 Komatsu SA6D140E-3, SAA6D140E-3, and SDA6D140E-3 series diesel engines across diverse machine applications including bulldozers, excavators, wheel loaders, and generator sets
• Official Komatsu publication P/N SEBM022209, printed in Japan November 2003
• Contains 47 exploded-view diagrams, 16 maintenance specification tables, and 12 engine performance curves for varying load outputs
• Stored against your account so you can retrieve it after a hard-drive loss
• OCR text layer lets you jump to a torque spec by keyword
• This 361-page service manual serves as the primary technical reference for the 140-3 series launch build, documenting specific electronic control common rail system parameters unavailable in earlier manuals

Engine Configuration and System Documentation

This factory shop manual provides a complete breakdown of the 140-3 series diesel engine components. The documentation details the structure and function of the common rail fuel injection system, turbocharging components, cooling circuits, and lubrication oil systems. Included chapters define procedures for inspection, disassembly, and reassembly, alongside maintenance standards required to evaluate parts for wear or replacement. Technical coverage includes cylinder head and block assemblies, piston and connecting rod tolerances, camshaft and timing gear configurations, and complete cooling system layouts.

Performance Specifications and Data Preview

Included specification tables provide comprehensive reference values for identification and assembly. The document contains torque settings for all primary fasteners, including head bolts using plastic range tightening methods, as well as flared nut and hose coupling specifications. Fluid capacity tables cover lubricating oil and cooling water volumes tailored to specific machine models like the PC600-6 or HD325-6. Sensor reference values for electronic systems and what an OEM service publication covers are provided for troubleshooting diagnostic codes. Valve clearance thresholds, piston ring gaps, and crankshaft journal diameters are listed for engine rebuilding. Cylinder head bolt torque for the 140-3 series is specified as 147 Nm plus an additional 90-degree turn for the final stage. The Komatsu SA6D140E-3 oil lubricating amount is documented at 42 liters. The low idling speed for the PC600-6 machine configuration is listed at 725 ± 25 rpm. This 361-page Komatsu technical manual documents engine, chassis, and cooling specifications for the 140-3 series diesel engine fleet.

Document Reference: SEBM022209, printed in Japan 11-03 (01)