Factory Shop Manual For Doosan DX420LC Track Excavator. Illustrations, instructions, diagrams for step by step remove and install, assembly and disassembly, service, inspection, repair, troubleshooting, tune-ups.

Format: PDF
Language: English
Quantity of Manuals: 2
Pages: 900; 862
Number: K1009096E; K1009096AE
Bookmarks: Yes
Searchable: Yes
Wiring Diagrams: Yes
Hydraulic Diagrams: Yes

Model

Doosan Track Excavator

DX420LC

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