This manual covers the Doosan Crawler Excavator, Model DX420LC, with serial numbers ranging from 5001 to 5326. Engineered for robust performance and reliability, this excavator is designed for demanding construction and earthmoving applications. Its advanced hydraulic system, powerful engine, and durable chassis ensure efficient operation and longevity in challenging environments. This comprehensive guide details the specific components and systems that contribute to the exceptional capabilities of the DX420LC.
This service manual provides essential information for the operation, maintenance, and repair of the Doosan DX420LC crawler excavator. It includes detailed sections on safety protocols, technical specifications, general maintenance procedures, and standard torque values. Furthermore, the manual offers in-depth coverage of the upper and lower structures, engine and drivetrain, hydraulics, and the electrical system, complete with troubleshooting guides and schematics. This resource is invaluable for owners, operators, and technicians seeking to maintain the optimal performance and service life of their equipment.
Original Illustrated Factory Workshop Service Manual for Doosan Crawler Excavator Type DX420LC.
Original factory manuals for Doosan Excavators, contains high quality images, circuit diagrams and instructions to help you to operate, maintenance and repair your truck. All Manuals Printable, contains Searchable Text and Navigation Bookmarks
Covered models:
S/N: 5001 - 5326
Format: PDF, 900 Pages
Language: English
Contents:
Safety
Track Excavator Safety.
Specifications
Specification for DX420LC.
General Maintenance
General Maintenance Procedures
Standard Torques
Upper Structure
Cabin
Counterweight
Fuel Tank
Swing Bearing
Swing Reduction Gear
Lower Structure and Chassis
Track Assembly
Air Conditioner
Engine and Drive Train
Drive Coupling (Main Pump)
Hydraulics
Hydraulic System Troubleshooting, Testing and Adjustment
Accumulator
Center Joint (Swivel)
Cylinders
Swing Motor
Travel Motor (With Gearbox)
Main Pump
Control Valve (KVMG-400-DA)
Remote Control Valve (Work Lever / Joystick)
Travel Control Valve (With Damper)
Solenoid Valve Assembly
Breaker EPPR Valve (Opt)
Fan Motor (Vane Type)
Gear Pump (Fan Cooling Drive)
Fan Cooling Flow In-Out Change Valve
Hydraulic Schematic (DX420LC)
Electrical System
Electrical System
Electrical Schematic (DX420LC)
Attachments
Boom and Arm
Bucket.
Original Illustrated Factory Workshop Service Manual for Doosan Crawler Excavator Type DX420LC.
Original factory manuals for Doosan Excavators, contains high quality images, circuit diagrams and instructions to help you to operate, maintenance and repair your truck. All Manuals Printable, contains Searchable Text and Navigation Bookmarks
Covered models:
S/N: 5001 - 5326
Format: PDF, 900 Pages
Language: English
Contents:
Safety
Track Excavator Safety.
Specifications
Specification for DX420LC.
General Maintenance
General Maintenance Procedures
Standard Torques
Upper Structure
Cabin
Counterweight
Fuel Tank
Swing Bearing
Swing Reduction Gear
Lower Structure and Chassis
Track Assembly
Air Conditioner
Engine and Drive Train
Drive Coupling (Main Pump)
Hydraulics
Hydraulic System Troubleshooting, Testing and Adjustment
Accumulator
Center Joint (Swivel)
Cylinders
Swing Motor
Travel Motor (With Gearbox)
Main Pump
Control Valve (KVMG-400-DA)
Remote Control Valve (Work Lever / Joystick)
Travel Control Valve (With Damper)
Solenoid Valve Assembly
Breaker EPPR Valve (Opt)
Fan Motor (Vane Type)
Gear Pump (Fan Cooling Drive)
Fan Cooling Flow In-Out Change Valve
Hydraulic Schematic (DX420LC)
Electrical System
Electrical System
Electrical Schematic (DX420LC)
Attachments
Boom and Arm
Bucket.
