Overview
The Doosan DX300LC-5 excavator repair service manual provides a technical reference for the covered equipment. Its purpose is to help locate information relevant to inspection, troubleshooting, servicing and repair, as applicable to the supplied publication.
The supplied contents outline identifies 1001 and Up, 50001 and Up, Manuals and Safety. The table below follows the provided section names and selected topics; consult the manual for the exact procedures and specifications.
Important Information: Confirm the applicable serial-number or production range in the supplied documentation before selecting a procedure.
Safety Information: Review the safety warnings and precautions included in the source documentation before performing service work.
Table of Contents
Doosan DX300LC-5 Manual
Main sections and selected subjects identified in the source documentation:
- 1001 and Up
- 50001 and Up
- Manuals: Shop Manual
- Safety
- 1 Track Excavator Maintenance Safety
- Specifications
- General Maintenance
- 1 General Maintenance Instructions
- 2 Standard Torques
- Engine
- Upper Structure
- 1 Cabin
- 2 Counterweight
- 3 Oil Tank
- 4 Fuel Tank
- 5 Main Pump
- 6 Drive Coupling (Main Pump)
- 7 Main Control Valve
- 8 Swing Device
- 9 Joystick Valve (Work Lever)
- 10 Dozer Joystick Valve
- 11 Travel Control Valve (with Damper)
- 12 Solenoid Valve
- 13 EPPR Valve (One or Two Way)
- 14 Accumulator
- 15 Gear Pump (Rotating)
- 16 One Spool Valve (Rotating)
- Lower Structure and Chassis
- 1 Swing Bearing
- 2 Center Joint
- 2 Center Joint (Dozer)
- 4 Travel Device
Serial-Number Applicability
The covered production ranges or serial groups may affect the applicable procedures. Check the identification details on the machine against the source documentation.








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