Doosan DX340LC-3 and DX350LC-3 Excavator Service Manual

Table of Contents

Safety
Track Excavator Maintenance Safety …………………………………………… SP002322
Specifications
Specification for DX340LC-3/DX350LC-3……………………………………… SP002408
General Maintenance
General Maintenance Instructions……………………………………………….. SP002454
Standard Torques……………………………………………………………………… SP002404
Upper Structure
Cabin ………………………………………………………………………………………. SP002324
Counterweight…………………………………………………………………………… SP002409
Fuel Tank…………………………………………………………………………………. SP002410
Fuel Transfer Pump (Option) ………………………………………………………. SP002394
Swing Bearing…………………………………………………………………………… SP002329
Lower Structure and Chassis
Track Assembly ………………………………………………………………………… SP002330
Engine and Drivetrain
Engine Coolant Heater (Option) ………………………………………………….. SP002328
Drive Coupling (Main Pump)……………………………………………………….. SP002411
Hydraulics
Hydraulic System Troubleshooting, Testing and Adjustment …………… SP002412
Accumulator……………………………………………………………………………… SP002455
Center Joint (Swivel)………………………………………………………………….. SP002545
Cylinders………………………………………………………………………………….. SP002422

Swing Device……………………………………………………………………………. SP002413
Travel Device……………………………………………………………………………. SP002414
Main Pump……………………………………………………………………………….. SP002415
Gear Pump (Option) ………………………………………………………………….. SP002457
Fan Motor for Oil Cooler …………………………………………………………….. SP002552
Fan Pump ………………………………………………………………………………… SP002553
Main Control Valve ……………………………………………………………………. SP002416
PRV (Peak Reducing Valve)……………………………………………………….. SP002459
Sensor Block…………………………………………………………………………….. SP002460
Remote Control Valve (Work Lever / Joystick) ………………………………. SP002450
Travel Control Valve (with Damper)……………………………………………… SP002381
Solenoid Valve Assembly …………………………………………………………… SP002406
Breaker EPPR Valve (Option) …………………………………………………….. SP002458
Hydraulic Schematic………………………………………………………………….. SP002417
Electrical System
Electrical System ………………………………………………………………………. SP002418
Electrical Schematic ………………………………………………………………….. SP002419
Attachments
Boom and Arm………………………………………………………………………….. SP002420
Bucket……………………………………………………………………………………… SP002421

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.