Part of the Doosan Repair Manuals.
All 792 pages of this Doosan DX210, DX225LCB shop manual PDF (OEM #950106-00185E) exist for one reason: putting your track excavator back to work. Inside: complete hydraulic schematics with troubleshooting, testing, and adjustment procedures for pilot pressure, the power mode valve, and the main control valve. You also get full electrical schematics covering the starting, charging, monitoring, and electronic hydraulic control circuits, plus step-by-step teardowns of the swing motor, travel motor, cylinders, and center joint. Real numbers, straight from Doosan: counterweight bolts torque to 150 kg·m (1,085 ft lb), and a healthy travel motor passes the jack-up test in 17.4 to 20.4 seconds at high speed. One side tracking slow? Quit swapping parts on a hunch. Download once, search any spec by keyword, and jump bookmark to bookmark right at the machine.
What's Inside This Manual
| System | Pages | Key Topics |
|---|---|---|
| Safety | 7-52 | Safety Precautions, Checks Before Starting Engine, Battery and Asbestos Dust Hazard Prevention, Attachment Precautions, Action When Abnormality Is Found |
| Specifications | 53-80 | Machine Dimensions, Operating Weight, Engine Data, Hydraulic Capacities for DX210 and DX225LCB |
| General Maintenance | 81-118 | Standard Torques, Bolt Torque and Bolt Head Identification, Bearing Inspection, Wear and Cage Damage, Thread Locking Adhesives |
| Upper Structure | 119-224 | Cabin, Counterweight, Fuel Tank, Fuel Transfer Pump, Swing Bearing, Swing Reduction Gear |
| Lower Structure and Chassis | 225-260 | Track Assembly, Adjusting Cylinder, Bushing and Link, Bearings and Backup Rings, Chassis Inspection Items |
| Engine and Drive Train | 261-274 | Drive Coupling (Main Pump), Coupling Parts and Fixing Nut, Flywheel, Installation Procedure and Clearance Measurement |
| Hydraulic System Troubleshooting, Testing and Adjustment | 275-310 | System Overview, Pilot Pressure, Power Mode Valve, Swing System Troubleshooting, Control Valve Troubleshooting |
| Accumulator | 311-320 | Theory of Operation, Precharge Pressure, Maintenance, Specifications |
| Center Joint (Swivel) | 321-334 | Rotor Shaft, Body and Cover, O-Rings and Spacers, Slip Ring Seals, Port Identification |
| Cylinders | 335-366 | Theory of Operation, Piston Nut, Piston Jig, Disassembly, Reassembly, Slipper Seal |
| Swing Motor | 367-402 | Theory, Brake Valve, Parking Brake, Disassembly, Reassembly, Maintenance Standards |
| Travel Motor | 403-462 | Theory, Brake Valve, Parking Brake, Disassembly, Reassembly, Testing |
| Gear Pump | 463-474 | Single Gear Pump, Drive and Driven Gears, Shaft and Bushings, Housing and Cover, Shaft Seal |
| Main Control Valve | 475-657 | Theory, Spool Shift, Relief Valve, Antidrift Valve, Disassembly, Reassembly |
| Electrical System | 658-766 | Electrical Supply System, Engine Starting Circuit, Charging System, Monitoring System, Electronic Hydraulic Control System, Air Conditioner System |
| Attachments | 767-792 | Boom and Arm Removal and Installation Procedures, Attaching and Detaching the Bucket, Wear Part Replacement |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Travel Motor Jack-up Test (High Speed - Standard Mode) | 17.4 - 20.4 sec | p. 80 |
| Travel Motor Jack-up Test (High Speed - Power Mode) | 16.5 - 19.5 sec | p. 80 |
| Bolt Torque | 150 kg•m (1,085 ft lb) | p. 144 |
| Fuel tank capacity | 400 liters (105 U.S. gal) | p. 151 |
| Coolant overheat warning threshold | 107°C (225°F) | p. 723 |
| Normal operation coolant temperature | below 95°C (203°F) | p. 723 |
| Hydraulic System Capacity | 240 liters | p. 67 |
| Hydraulic Reservoir Capacity | 140 liters | p. 67 |
| Main Relief Pressure | 330 kg/cm2 | p. 74 |
| Engine Power | 157 ps @ 1,950 rpm | p. 71 |
| Max Torque | 60 kg•m @ 1,400 rpm | p. 71 |
| Swing Reduction Gear Oil Capacity | 3.8 liters | p. 220 |
