Description
Doosan DX420LC Hydraulic Excavator Shop Manual (Serial Number 5001 thru 5326)
Doosan DX420LC Hydraulic Excavator Index:
Publication Request for Proposed Revision
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
