Part of the Doosan Repair Manuals.
Looking for the Doosan DX225LC shop manual PDF? All 816 pages of this Doosan Track Excavator Shop Manual (OEM #K1048003E) cover the DX225LC, DX225NLC, DX300LC, and DX340LC, from swing bearing to track assembly. Inside: full hydraulic schematics plus troubleshooting, testing, and adjustment procedures for the main control valve, axial piston pump, swing motor, and travel motor. You also get complete electrical schematics for chasing wiring faults, a standard torque section, cylinder and center joint rebuilds, and boom, arm, and bucket service. Set the boom and arm overload relief valves to 360 kg/cm2 (5,112 psi), and fill the 400-liter fuel tank without second-guessing capacity. Your machine is down; borrowed numbers off a forum won't cut it. Bookmarked and keyword-searchable, this PDF opens on your phone right at the machine. Download it and start wrenching.
Other edition of this manual
What's Inside This Manual
| System | Pages | Key Topics |
|---|---|---|
| Safety | 7-52 | |
| Specifications | 53-80 | Specification for DX225LC |
| General Maintenance | 81-118 | General Maintenance Procedures, Standard Torques |
| Upper Structure | 119-226 | Cabin, Counterweight, Fuel Tank, Fuel Transfer Pump, Swing Bearing, Swing Reduction Gear |
| Lower Structure and Chassis | 227-262 | Track Assembly |
| Engine and Drive Train | 263-276 | Drive Coupling (Main Pump) |
| Hydraulic System Troubleshooting, Testing and Adjustment | 279-314 | Safety Precautions, Applicable Models, Hydraulic System - General Notes, Hydraulic Schematic, Operation of Working Components, Boom Operating Circuit |
| Accumulator | 315-370 | Safety Precautions, Applicable Models, General Description |
| Swing Motor | 371-406 | Safety Precautions, Applicable Models, Operation Manual, Information on Marking, Structure and Operational Principles, Cautions |
| Travel Motor | 407-464 | Safety Precautions, Applicable Models, TM40VD Operation Manual, General Specifications, Legend, Basic Structure and Diagram |
| Gear Pump | 465-544 | Safety Precautions, Applicable Models, Single Gear Pump, Disassembly, Reassembly |
| Axle Piston Pump | 545-598 | Safety Precautions, Applicable Models, Pump Maintenance, Component Locations, Tools, Tightening Torque |
| Travel Control Valve (with Damper) | 599-624 | Safety Precautions, Applicable Models, General Description, Theory of Operation, Pressure Reducing Valve, Operating Theory of Damper Mechanism |
| Solenoid Valve Assembly | 625-659 | Safety Precautions, Applicable Models, Functions of 5-Solenoid Valve Assembly Package, Assembly Diagram and Tools Required, Cautions During Disassembly and Reassembly, Solenoid Valve Diagram |
| Electrical System | 660-790 | Electrical Schematic (DX225LC) |
| Attachments | 791-816 | Boom and Arm, Bucket |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Fuel tank capacity | 400 liters (105 U.S. gal) | p. 152 |
| Overload relief valves (Boom operating circuit) | 360 kg/cm2 (5,112 psi) | p. 288 |
| Overload relief valves (Arm operating circuit) | 360 kg/cm2 (5,112 psi) | p. 289 |
| Hydraulic Motor Max. Displacement | max. 174.7 cc/rev | p. 412 |
| Parking Brake Braking Torque | min. 40.6 kgf•m | p. 412 |
| Body Fitting Bolt Tightening Torque | 25.7 ± 4.0 kg•m | p. 422 |
| Sprocket Fitting Bolt Tightening Torque | 25.7 ± 4.0 kg•m | p. 422 |
| Battery voltage | 12 volts | p. 670 |
| Main Relief Pressure (Normal) | 330 kg/cm2 | p. 73 |
| Main Relief Pressure (Pressure Up) | 350 kg/cm2 | p. 73 |
| Fuel Tank Capacity | 400 liters | p. 67 |
| Hydraulic Reservoir Capacity | 140 liters | p. 67 |
