List of Kobelco Hydraulic Excavator Models:
▪ SK09SR
▪ SK15SR / SK20SR
▪ SK25SR / SK30SR / SK35SR
▪ SK40SR / SK45SR
▪ SK50SR
▪ SK60
▪ SK70SR / SK75UR / SK80CS
▪ SK100 / SK120 / SK120LC
▪ SK115SRDZ / SK135SRLC / SK135SRL
▪ SK140SRLC
▪ SK170-8
▪ SK200 / SK200LC
▪ SK200-8 / SK210LC-8
▪ SK210 / SK210LC
▪ SK235SR / SK235SRLC
▪ SK250 / SK250LC
▪ SK250-8 / SK260LC-8
▪ SK310 / SK310LC
▪ SK330 / SK330LC
▪ SK350-8 / SK350LC-8
▪ SK480 / SK480LC

Dealer Service Documentation (Kobelco Shop Manuals)
This archive represents a database of professional dealer service manuals (Shop Manuals) for Kobelco hydraulic excavators — ranging from compact SR series to heavy crawler machines.

The documentation is designed for in-depth diagnostics, maintenance, calibrations, and component repair. The manual structure is standardized and consists of four main sections:

I. GENERAL
Basic data required to start working with the machine and assess its condition.
▪ Specification: Technical characteristics of the machine.
▪ Location and Weight of Components: Layouts of main assemblies and their weight (critical for safe dismantling and removal).
▪ Maintenance Standard and Test Procedure: Reference values (circuit pressures, flow rates, clearances) and step-by-step procedures for their verification.
▪ Working Standard & Standard Man-Hour Table: Standard hours allocated for repair operations.

II. SYSTEMS
Section for system diagnostics and understanding the operational logic of the excavator.
▪ Hydraulic, Travel, Swing/Upper Structure: Hydraulic circuit diagrams and operating principles of hydraulic lines.
▪ Electrical & Control System: Wiring diagrams, pinouts, and controller logic.
▪ Troubleshooting: The most important diagnostic section. Contains algorithms for finding the root cause of failures based on symptoms or error codes.

III. COMPONENTS
Instructions for component repair (disassembly, inspection, assembly).
▪ Hydraulic Pump, Motor: Repair of the main pump, travel, and swing motors.
▪ Control Valve: Overhaul and adjustment of the main control valve.
▪ Other components: Swivel Joint, hydraulic cylinders, Reduction Unit, and basic Engine work.

IV. PROCEDURE
Step-by-step algorithms for safe removal, installation, and adjustment of equipment.

SUMMARY:
This documentation enables comprehensive service support for Kobelco excavators. It covers all specialist needs: from checking hydraulic pressure with testing gauges and reading wiring diagrams to the complete overhaul of main hydraulic components and travel reduction units.



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