Model:
DH Series Excavators (various models)
Model Variants:
Covers all DH series models including DH55, DH60, DH80, DH130, DH150, DH200, DH220, DH225, DH258, DH280, DH290, DH300, DH320, DH340, DH360, DH370, DH400, DH420, DH450, DH500, and similar
Production Years Covered:
1990s to mid-2000s (exact range depends on specific model)
Target Audience:
Technicians, equipment owners, and DIY enthusiasts seeking comprehensive repair and maintenance information
Advantage:
Provides detailed electrical and hydraulic schematics essential for accurate troubleshooting, surpassing generic manuals
Key Features:
Complete wiring diagrams, hydraulic circuit schematics, component locations, and test procedures for DH series excavators
Systems Covered:
Electrical system, hydraulic system, engine, transmission, and related components
Page Count:
Total pages vary; typically 500+ pages of schematics and diagrams
Manual Type:
Electrical and hydraulic schematic manual
Delivery Method:
Instant download after purchase
Electrical Schematics:
Complete wiring diagrams for starting, charging, lighting, instrumentation, and control systems
Hydraulic Schematics:
Circuit diagrams for main pumps, control valves, travel motors, swing motors, and attachment circuits
Component Locations:
Illustrated locations for electrical components, sensors, solenoids, and hydraulic valves
Troubleshooting:
Systematic diagnostic procedures for electrical and hydraulic faults
Testing Procedures:
Step-by-step instructions for pressure tests, electrical measurements, and performance checks
Technical Depth:
Detailed, professional-level information suitable for experienced technicians
Parts Information:
Reference numbers for connectors, fuses, relays, and hydraulic components
Engine Electrical:
Starting and charging circuits, glow plug system, engine control module (if applicable)
Hydraulic Pump Control:
Diagrams for variable displacement pumps and electronic pump controllers
Main Control Valve:
Schematics for spool valves and relief valve settings
Travel System:
Hydraulic circuits for travel motors and parking brakes
Swing System:
Swing motor and swing brake circuits
Attachment Circuits:
Auxiliary hydraulic lines for breakers, grapples, and other tools
Cab Electrical:
Wiring for air conditioning, wipers, switches, and monitors
Sensor Locations:
Pressure sensors, temperature sensors, speed sensors, and position sensors
Fuse and Relay Boxes:
Layouts and circuit assignments
Compatibility:
Works on Windows, Mac, and mobile devices with PDF reader
Requirements:
PDF reader software (e.g., Adobe Acrobat Reader)
Searchability:
Text searchable for easy navigation
Resolution:
High resolution for clear reduction or enlargement
Binding Type:
Digital (no physical binding)
Paper Type:
N/A - digital download
Engine Models:
Various diesel engines depending on specific DH model; typically Doosan or Daewoo engines in the 50-500 hp range
Power Output:
Varies by model; consult specific manual for exact ratings
Displacement:
Varies; typically 2.2L to 13L depending on model
Injection System:
Direct injection or unit injector depending on engine
Wheelbase:
Not applicable (tracked vehicle)
Overall Length:
Varies by model; typical range from 5.5m to 11m
Overall Width:
Varies; typical range from 2m to 3.5m
Operating Weight:
Varies by model; typical range from 5.5 tons to 50 tons
Shipping Weight:
Varies; typically similar to operating weight minus attachments
Crash Test Information:
N/A - not applicable for construction equipment
Operator Protection:
ROPS/FOPS certified cab available on most models
Safety Devices:
Horn, backup alarm, seat belt, emergency shutoff
Structural Features:
Reinforced cab and rollover protection
Engine Oil and Filter Change:
Every 250 hours or as specified in manual
Hydraulic Oil Change:
Every 2000 hours or annually
Fuel Filter Replacement:
Every 500 hours
Air Filter Cleaning/Replacement:
Clean every 100 hours, replace every 1000 hours
Engine Oil:
API CF-4 or higher, SAE 15W-40
Hydraulic Oil:
ISO VG 46 or similar, anti-wear hydraulic oil
Coolant:
Ethylene glycol based, 50/50 mix
Known Issues and Wear Items
Common Wear Items:
Track links, rollers, sprockets, hydraulic hoses, seals
Electrical Connectors:
Prone to corrosion; regular inspection recommended
Hydraulic Pump Wear:
Monitor pump noise and performance for degradation
Manufacturer:
Daewoo Heavy Industries, now Doosan Infracore
Heritage:
Daewoo established its construction equipment division in the 1970s; Doosan acquired the business in 2005
Series Overview:
DH series introduced in the late 1980s and evolved through several updates; later replaced by DX series
Production Sites:
South Korea (e.g., Incheon, Gunsan) and other global facilities
