Part of the Doosan Repair Manuals.
This 778-page Doosan DX180LC Shop Manual PDF (OEM #K1024431AE) takes your track excavator apart on paper before you touch a wrench, and the same procedures cover the DX225LC, DX225NLC, DX255LC, and DX300LC. Inside: complete electrical and hydraulic schematics for the DX180LC, a full hydraulic troubleshooting, testing, and adjustment section, and rebuild procedures for the main pump, swing motor, travel motor, main control valve, and cylinders. You also get track assembly service, swing bearing and reduction gear work, plus boom, arm, and bucket procedures. Torque the 3/4-inch split flange to 3.0-3.7 kg·m (22-27 ft lb), and pull lower rollers when tread diameter hits 135 mm. No more chasing a pressure drop with a gauge and a hunch. Bookmarked with a real text layer; open it on your phone at the machine, search the spec, get back to digging.
What's Inside This Manual
| System | Pages | Key Topics |
|---|---|---|
| Safety | 5-52 | Track Excavator Safety |
| Specifications | 53-80 | Specification for DX180LC |
| General Maintenance | 81-118 | General Maintenance Procedures, Standard Torques |
| Upper Structure | 119-218 | Cabin, Counterweight, Fuel Tank, Fuel Transfer Pump, Swing Bearing, Swing Reduction Gear |
| Lower Structure and Chassis | 219-250 | Track Assembly |
| Engine and Drive Train | 251-262 | Drive Coupling (Main Pump) |
| Hydraulic System Troubleshooting, Testing and Adjustment | 265-300 | Safety Precautions, Applicable Models, Hydraulic System - General Notes, Hydraulic Schematic, Operation of Working Components, Boom Operating Circuit |
| Accumulator | 301-348 | Safety Precautions, Applicable Models, General Description |
| Swing Motor | 349-384 | Safety Precautions, Applicable Models, Operation Manual, Information on Marking, Structure and Operational Principles, Cautions |
| Travel Motor | 385-426 | Safety Precautions, Applicable Models, General Description, Structure, Tools, Standard Tools |
| Main Pump | 427-482 | Safety Precautions, Applicable Models, A8VO80LA1KH1/63, General Repair Guidelines, Seal Kits and Sub-Assemblies, Sealing the Drive Shaft |
| Main Control Valve | 483-532 | Safety Precautions, Applicable Models, General Description, Theory of Operation, Composite Operation, Anti-Drift Valve |
| PTO Server | 533-566 | Safety Precautions, Applicable Models, Pump Maintenance, Disassembly, Reassembly, Maintenance Standards of Pump Body |
| Travel Control Valve (with Damper) | 567-624 | Safety Precautions, Applicable Models, General Description, Theory of Operation, Deceleration Valve, Dampening Parts of the Control Section |
| Electrical System | 625-754 | Electrical Schematic (DX180LC/DX225LC) SP000936 |
| Attachments | 755-778 | Boom and Arm, Bucket |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Torque for 1/2" split flange | 2.1 - 2.5 kg·m (15 - 18 ft lb) | p. 113 |
| Torque for 3/4" split flange | 3.0 - 3.7 kg·m (22 - 27 ft lb) | p. 113 |
| Fuel tank capacity | 500 liters (132 U.S. gal) | p. 149 |
| Lower Roller Outside Diameter of Tread (Recommended Limit for Maintenance) | 138 mm | p. 232 |
| Lower Roller Outside Diameter of Tread (Limit for Use) | 135 mm | p. 232 |
| Front Idler Outside Diameter of Tread (Recommended Limit for Maintenance) | 488 mm | p. 234 |
| Front Idler Outside Diameter of Tread (Limit for Use) | 485 mm | p. 234 |
| Link Pitch (Standard Dimension) | 190 mm | p. 231 |
| Bushing Outside Diameter (Recommended Limit for Maintenance) | 55 mm | p. 231 |
| Battery voltage | 12 volt | p. 635 |
| Battery capacity | 100AH | p. 637 |
| Battery | 12V 100AH | p. 646 |
