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.