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

Illustrated Factory Workshop Service Manual for Doosan Crawler Excavator Type DX420LC.

• Original factory manuals for Doosan Excavators, containing high-quality images, circuit diagrams, and instructions for operation, maintenance, and repair.
• All Manuals are Printable, contain Searchable Text, and Navigation Bookmarks.

Covered models:

• S/N: 5327 and Up

Format: 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