Doosan Crawler Excavator Type DX420LC S/N: 5327 and Up Workshop Service Manual

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: 5327 and Up
 
 
Format: PDF, 862 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
 
        Fuel Transfer Pump (Opt)
 
        Swing Bearing
 
        Swing Reduction Gear
 
    Lower Structure and Chassis
 
        Track Assembly 
 
    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
 
        Gear Pump (Fan Cooling Drive) 
 
        Main Control Valve 
 
        Remote Control Valve (Work Lever / Joystick) 
 
        Travel Control Valve (With Damper)
 
        Fan Motor (Vane Type)
 
        Fan Cooling Flow In-Out Change Valve 
 
        Solenoid Valve Assembly 
 
        Breaker EPPR Valve (Opt) 
 
        Hydraulic Schematic (DX420LC) 
 
    Electrical System
 
        Electrical System 
 
        Electrical Schematic DX420LC
 
    Attachments
 
        Boom and Arm
 
        Bucket.
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