Doosan DX255LCA Excavator Service Manual

Table of Contents

Safety
Track Excavator Safety………………………………………………………………. SP001716
Specifications
Specification for DX225LCA ……………………………………………………….. SP001717
General Maintenance
General Maintenance Procedures……………………………………………….. SP000016
Standard Torques……………………………………………………………………… SP000813
Upper Structure
Cabin ………………………………………………………………………………………. SP000943
Counterweight…………………………………………………………………………… SP001617
Fuel Tank…………………………………………………………………………………. SP001718
Fuel Transfer Pump…………………………………………………………………… SP000021
Swing Bearing…………………………………………………………………………… SP000022
Swing Reduction Gear……………………………………………………………….. SP001618
Lower Structure and
Chassis
Track Assembly ………………………………………………………………………… SP001619
Engine and Drive Train
Drive Coupling (Main Pump)……………………………………………………….. SP000912
Hydraulics
Hydraulic System Troubleshooting, Testing and Adjustment …………… SP000913
Accumulator……………………………………………………………………………… SP000028
Center Joint (Swivel)………………………………………………………………….. SP001620

Cylinders………………………………………………………………………………….. SP000914
Swing Motor……………………………………………………………………………… SP000194
Travel Motor……………………………………………………………………………… SP001621
Gear Pump ………………………………………………………………………………. SP000931
Main Control Valve ……………………………………………………………………. SP001024
Axial Piston Pump……………………………………………………………………… SP000932
PTO Server………………………………………………………………………………. SP000933
Remote Control Valve (Work Lever / Joystick) ………………………………. SP001646
Travel Control Valve (with Damper)……………………………………………… SP001647
Solenoid Valve Assembly …………………………………………………………… SP001622
Breaker EPPR Valve (Opt) …………………………………………………………. SP000192
Hydraulic Schematic (DX225LC/DX225LCA) ………………………………… SP001689
Electrical System
Electrical System………………………………………………………………………. SP001727
Electrical Schematic (DX225LCA) ……………………………………………….. SP001732
Attachments
Boom and Arm………………………………………………………………………….. SP000937
Bucket……………………………………………………………………………………… SP000939

How to Use The Guide Manual

This manual provides information for servicing the Excavator. All service procedures are broken down into detailed steps, listed in their recommended sequence. The manual uses both photographs and drawings to help locate and itemize components. The table of Contents on the preceding pages is your best tool for finding the service procedure you need. Be certain to observe all Safety information included in these pages.

A schematic of each of the major engine systems is provided at the beginning of the section of the manual devoted to troubleshooting and repairing that particular system.

Basic safety precautions are list in the Safety section of the Service Manual. Additional safety precautions are list in the Safety section of the owner/operation/maintenance publication. Specific safety warnings for all these publications are provided in the description of operations where hazards exist. WARNING labels have also been put on the product to provide instructions and to identify specific hazards.