Doosan Dx420lc Daewoo Excavator Workshop Service Manual

Description

Doosan Dx420lc Daewoo Excavator Workshop Service Manual

Dx420lc – CatExcavatorServiceRepairmanual.com

This is Doosan Dx420lc Daewoo a complete Service Shop Repair Manual Excavator DX420LC. This manual contains profound information about maintaining assembly, disassembly, and servicing.

Increased production and improved fuel economy thanks to the electronic optimization of the hydraulic system and the new generation Doosan engine
(stage IIIa).

• Improved ergonomics, increased comfort and excellent all-round visibility ensuring a safe and pleasant working environment.

• Improved reliability through the use of high-performance materials combined with new methods of structural stress analysis has to lead to increased
component life expectancy, thus reducing running costs.

• Reduced maintenance increases the availability of the excavator and reduces running costs.

Doosan Dx420lc Daewoo Excavator Workshop Service Repair Manual

Contents as follows : Daewoo Doosan Service

Safety
Data
General Maintenance
Upper structure
Lower Structure And Chassis
Engine And Powertrain
Hydraulic
Electrical
Attachments
Electrical Schematic
Hydraulic Schematic

Table of Contents
Safety
Track Excavator Safety SP000256

Specifications
Specification for DX420LC SP000257

General Maintenance
General Maintenance Procedures SP000016
Standard Torques SP000017

Upper Structure
Cabin SP000018
Counterweight SP000265
Fuel Tank SP000264
Swing Bearing SP000262
Swing Reduction Gear SP000249

Lower Structure and Chassis
Track Assembly SP000263
Air Conditioner SP000025

Engine and Drive Train
Drive Coupling (Main Pump) SP000026

Hydraulics
Hydraulic System Troubleshooting, Testing and Adjustment SP000273
Accumulator SP000028
Center Joint (Swivel) SP000181
Cylinders SP000030
Swing Motor SP000261
Travel Motor (With Gearbox) SP000266
Main Pump SP000186
Control Valve (KVMG-400-DA) SP000187
Remote Control Valve (Work Lever / Joystick) SP000189
Travel Control Valve (With Damper) SP000070
Solenoid Valve Assembly SP000191
Breaker EPPR Valve (Opt) SP000192
Fan Motor (Vane Type) SP000209
Gear Pump (Fan Cooling Drive) SP000208
Fan Cooling Flow In-Out Change Valve SP000207
Hydraulic Schematic (DX420LC) SP000274

Electrical System
Electrical System SP000269
Electrical Schematic (DX420LC) SP000275

Attachments
Boom and Arm SP000040
Bucket SP000041

Doosan This manual contains information and data for this model. HAS INFO IS REAL PHOTO diagrams and illustrations and schemes, which give you complete step by step WHEN repair, maintenance, technical maintenance, and troubleshooting procedures for your machine.

THIS GUIDE OFFERS YOU full information to repair your machine. IN THIS MANUAL allows you to find trouble and to understand how to repair and maintain your machine without the service.

Doosan Dx420lc Daewoo Excavator