Model:
Excavator DH Series
Model Variant:
Various models in DH series (e.g., DH55, DH80, DH200, DH220, DH300, DH360, etc.)
Production Years:
1990s to mid-2000s (specific years vary by model)
Target Audience:
Technicians, mechanics, and DIY owners who need detailed electrical system information for diagnosis and repair.
Market Role:
Comprehensive electrical schematic manual for the Doosan Daewoo DH series excavators.
Advantage:
Provides in-depth electrical wiring diagrams specific to the DH series, enabling accurate troubleshooting and repair.
Key Features:
Detailed electrical schematics, component locations, and circuit diagrams for all DH series models.
Coverage Areas:
Complete electrical system, including starting, charging, lighting, instrumentation, and control systems.
Page Count:
Approximately 500-800 pages (varies by model and edition)
Manual Type:
Electrical Schematic Manual
Delivery Method:
Instant download
Starting System:
Starter motor circuits, ignition switch, safety relays.
Charging System:
Alternator, voltage regulator, battery circuits.
Lighting Systems:
Work lights, headlights, turn signals, hazard lights.
Instrumentation:
Gauges, warning lights, sensors for monitoring engine and hydraulic systems.
Control Systems:
Joystick and pedal control circuits, electronic control unit inputs/outputs.
Engine Electrical:
Fuel shutoff solenoid, glow plug circuits, engine speed control.
Hydraulic System Controls:
Solenoid valves, pressure switches, flow control.
Air Conditioning:
A/C compressor clutch circuit, fan controls.
Heater System:
Blower motor, heater controls.
Diagnostic Procedures:
Step-by-step electrical diagnostics, voltage and continuity checks.
Wiring Diagram Interpretation:
Detailed schematics with color codes and connector pinouts.
Component Testing:
Procedures for testing switches, relays, sensors, and actuators.
Technical Detail:
Professional-grade information with specific electrical values and test points.
Parts Reference:
Includes part numbers and connections for major electrical components where available.
Compatibility:
Compatible with all modern PDF readers on Windows, Mac, and mobile devices.
Requirements:
PDF reader software is required.
Searchability:
Text searchable PDF with clickable navigation and bookmarks.
Print Resolution:
High-resolution scans and vector diagrams for clarity.
Binding:
Digital (no physical binding)
Paper Type:
N/A - Digital product
Primary Engine:
Various diesel engines (e.g., Doosan DB58, DC24, DE08, etc.) depending on model.
Engine Range:
Engine power ranges from approximately 40 to 300 horsepower across the DH series.
Performance:
Designed for heavy-duty excavator applications with high torque at low RPM.
Injection Type:
Direct injection (typical)
Overall Length:
Varies by model, typically 4.5 to 11 meters (with boom/stick in transport position).
Overall Width:
Varies by model, typically 1.7 to 3.3 meters.
Overall Height:
Varies by model, typically 2.5 to 3.5 meters (to top of cab).
Operating Weight:
Varies by model, from approximately 5 to 35 metric tons.
Transport Weight:
N/A - use shipping specs
Crash Test Rating:
N/A - not applicable for off-road equipment
ROPS:
Roll-over protective structure (cab with ROPS/FOPS on many models).
Emergency Stop:
Engine shut-off switch accessible from ground and cab.
Travel Alarm:
Optional backup alarm.
Seat Belts:
Operator seatbelt is standard.
Mirrors:
Rear and side-view mirrors for visibility.
Engine Oil Change:
Every 250 hours or as per maintenance schedule.
Hydraulic Oil Change:
Every 1000 hours or annually.
Air Filter Service:
Every 50 hours clean; replace as needed.
Fuel Filter Replacement:
Every 500 hours or annually.
Engine Oil Type:
API CI-4 or higher; SAE 15W-40 (typical)
Hydraulic Oil Type:
ISO VG 46 or 68 anti-wear hydraulic fluid.
Coolant Type:
Ethylene glycol base long-life coolant.
Common Wear Items:
Track undercarriage, bucket teeth, hydraulic hoses and seals.
Known Issues:
Electrical connector corrosion, sensor failures, wiring harness wear.
Manufacturer:
Doosan Infracore (formerly Daewoo Heavy Industries)
DH Series Introduction:
Introduced in the late 1990s as a successor to the Solar series.
Evolution:
Later replaced by the DX series after 2005.
Assembly Plants:
South Korea (Changwon), and various global facilities.
