Content

Safety

• To the operator of a daewoo excavator
• General safety essentials
• Location of safety labels
• Summary of safety precautions for lifting in digging mode
• Unauthorized modifications
• General hazard information
• Before starting engine
• Machine operation
• Maintenance
• Battery
• Towing
• Shipping and transportation
• Lifting with sling

Specifications

• General description
• Component locations
• General dimensions
• Working range
• General specifications
• Engine performance curves (per din 6270 standard)
• Approximate weight of workload materials
• Performance tests
• Excavator performance standards

General maintenance

• Welding precautions and guidelines
• Hydraulic system - general precautions
• Maintenance service and repair procedure
• Hydraulic system cleanliness and oil leaks
• Cleaning and inspection

Upper structure

Lower structure and chassis

• General description
• Track tension
• Cleaning and inspection (wear limits and tolerances)
• Track shoes and links
• Front idler roller
• Lower roller
• Upper roller
• Track spring and track adjusting cylinder

Engine and drive train

• General description
• Refrigerant circulation
• Control panel
• Control specifications
• Temperature level control and display
• Air discharge according to path selection
• Air-conditioning system circuit diagram
• Troubleshooting
• Weight of R134A gas used in machines
• Refrigerant system repairs

Hydraulics

• Hydraulic system - general notes
• Hydraulic schematic
• Operation of working components
• Procedural troubleshooting baseline recommendations
• Pilot pressure
• Power mode valve
• Swing priority valve
• Pressure up valve
• Pump input power control
• Flow meter and flow meter kit installation and testing
• Swing system troubleshooting
• Troubleshooting – swing gearbox
• Troubleshooting – hydraulic problems
• Troubleshooting – control valve
• Troubleshooting – travel control valve
• Troubleshooting – joystick control valve

Electrical system

• Troubleshooting - electrical system
• Overview
• Electric supply system
• Engine starting circuit
• Engine preheating system
• Engine stop system
• Charging system
• Monitoring system
• Operation
• Warning and indicator lights
• Initial operation
• Mode select switch
• Graphic information area display
• Main menu
• Special menu
• Electronic hydraulic control system (E-EPOS)
• Power mode control
• Work mode control
• Engine control system
• Engine control motor
• Engine control dial
• Engine control circuit diagram
• Automatic deceleration control (auto idle control)
• Engine overheat protection system
• Power boost mode
• Automatic travel speed control
• Engine control device - adjustment
• Self-diagnostic function
• Engine throttle controller
• Wiper system
• Lighting system
• Overload warning device

Attachments

• Front attachment pin specifications
• Front attachment - removal and installation
• Start-up procedures