Komatsu D65EX-15 & D65PX-15 Dozer Shop Manual (P/N SEBM029508, first edition)

This 922-page technical reference provides the foundational data for the SA6D125E-3 engine, power train, and HSS system used across the 67001-series and up build range. It serves owners and workshops servicing the 2008 and newer Komatsu D65EX-15, D65PX-15, and D65WX-15 dozers, including wide-gauge, long-track, and power-tilt configurations.

• Official Komatsu publication P/N SEBM029508, first edition February 2008
• 21 hydraulic system diagrams for fluid flow and pressure diagnostics
• 28 tightening torque tables covering metric bolts, O-ring boss joints, and taper seals
• 19 electrical component reference charts for harness routing and connector pinouts

Manual Contents and System Breakdown

This shop document details the structural and functional specifications necessary for heavy equipment service. The text is organized into five main sections. It begins with general machine specifications and factory documentation layout to aid in rapid parts identification. Subsequent chapters cover operation parameters, maintenance standards, and testing procedures for the hydraulic, power train, and electrical systems. Because bulldozer hydraulic networks operate under extreme pressures, technicians must review the integrated safety and depressurization guidelines before initiating any hydraulic component service.

Specification and Reference Data

Expect highly detailed technical data for major system tear-downs and routine maintenance. The documentation outlines engine specifications for the Komatsu SA6D125E-3, verifying rated outputs of 142 kW at 1,950 rpm. Cooling system metrics are equally thorough. Radiator and oil cooler parameters include pressure valve cracking pressures set exactly at 88.3 kPa.

Mechanics will find step-by-stage cylinder head bolt torque sequences mapped out directly within the engine data tables. Additionally, transmission and HSS system control valve specifications provide precise gear ratios alongside proportional solenoid characteristics. These baseline figures are essential for accurate diagnostic testing and restoring factory performance standards.