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DX420LC
Shop Manual
K1009096E
Serial Number 5001 and Up
Daewoo reserves the right to improve our products in a continuing process to provide the best possible
product to the market place. These improvements can be implemented at any time with no obligation to
change materials on previously sold products. It is recommended that consumers periodically contact their
distributors for recent documentation on purchased equipment.
This documentation may include attachments and optional equipment that is not available in your
machines package. Please call your distributor for additional items that you may require.
Illustrations used throughout this manual are used only as a representation of the actual piece of
equipment, and may vary from the actual item.
K1009096E Shop Manual
1Table of Contents
Safety
Track Excavator Safety SP000256
Specifications
Specification for DX420LC SP000257
General Maintenance
General Maintenance Procedures SP000016
Standard Torques SP000017
Upper Structure
Cabin SP000018
Counterweight SP000265
Fuel Tank SP000264
Swing Bearing SP000262
Swing Reduction Gear SP000249
Lower Structure and Chassis
Track Assembly SP000263
Air Conditioner SP000025
Engine and Drive Train
Drive Coupling (Main Pump) SP000026
Hydraulics
Hydraulic System Troubleshooting, Testing and Adjustment SP000273
Accumulator SP000028
Center Joint (Swivel) SP000181
Cylinders SP000030
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