Doosan DX350LC Excavator Service Manual

Table of Contents

Safety
Track Excavator Safety………………………………………………………………. SP000907
Specifications
Specification for DX350LC………………………………………………………….. SP001772
General Maintenance
General Maintenance Procedures……………………………………………….. SP000016
Standard Torques……………………………………………………………………… SP000813
Upper Structure
Cabin ………………………………………………………………………………………. SP001737
Counterweight…………………………………………………………………………… SP001738
Fuel Tank…………………………………………………………………………………. SP001739
Fuel Transfer Pump (Opt)…………………………………………………………… SP000021
Swing Bearing…………………………………………………………………………… SP001856
Swing Reduction Gear……………………………………………………………….. SP001740
Lower Structure and Chassis
Track Assembly ………………………………………………………………………… SP001741
Engine and Drive Train
Drive Coupling (Main Pump)……………………………………………………….. SP000026
Hydraulics
Hydraulic System Troubleshooting, Testing and Adjustment …………… SP001773
Accumulator……………………………………………………………………………… SP000028
Center Joint (Swivel)………………………………………………………………….. SP000181
Cylinders………………………………………………………………………………….. SP000030
Swing Motor……………………………………………………………………………… SP000261
Travel Motor……………………………………………………………………………… SP000253
Main Pump……………………………………………………………………………….. SP000186
Gear Pump ………………………………………………………………………………. SP000260
Main Control Valve ……………………………………………………………………. SP001792
Remote Control Valve (Work Lever / Joystick) ………………………………. SP000069
Travel Control Valve (With Damper)…………………………………………….. SP001743
Solenoid Valve Assembly …………………………………………………………… SP001793
Breaker EPPR Valve (Opt) …………………………………………………………. SP000192
Hydraulic Schematic (DX350LC)…………………………………………………. SP001774
Electrical System
Electrical System………………………………………………………………………. SP001776
Electrical Schematic DX300/340/350LC……………………………………….. SP001768
Attachments
Boom and Arm………………………………………………………………………….. SP001851
Bucket……………………………………………………………………………………… SP001852

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.

If Solenoid valve will not function properly there might be foreign substance, dirt and dust in solenoid valve. Disassemble the solenoid valve and check if there is any contamination such as a foreign substance and sludge between the case and the spool. Remove contaminant, wash, and assemble components.