Part of the Doosan Repair Manuals.
Need factory answers for your Doosan DX180LC-3? This 882-page Doosan DX180LC-3 shop manual PDF (OEM #950106-00417E) covers the crawler excavator from swing bearing to bucket pins, and the same procedures apply to the DX140LC-3, DX225LC-3, DX255LC-3, DX300LC-3, and DX340LC-3. Inside: full-machine electrical schematics, the complete hydraulic schematic, error code tables for the EPOS control system, and page after page of exploded views covering the main pump, swing device, travel device, and main control valve. You get standard torque tables for every fastener size, plus hydraulic testing and adjustment procedures with the exact relief pressures Doosan calls for. Chasing a hot swing gearbox or a leaking center joint? The troubleshooting charts walk you straight to the cause. No more forum guesses. Bookmarked with a live text layer; search any spec, jump to any section, and get wrenching.
What's Inside This Manual
| System | Pages | Key Topics |
|---|---|---|
| Safety | 5-72 | Track Excavator Maintenance Safety (Safety Instructions, Applicable Models, Safety Messages, Safety Decals, General, Transportation, Operation, Environment and Circumstances) |
| Specifications | 73-102 | Specifications for DX180LC-3 |
| General Maintenance | 103-140 | Standard Torques |
| Upper Structure | 141-202 | Cabin, Counterweight, Fuel Tank, Fuel Transfer Pump, Swing Bearing |
| Lower Structure and Chassis | 203-236 | Track Assembly |
| Engine and Drivetrain | 237-266 | Engine Coolant Heater, Drive Coupling |
| Hydraulics - System Troubleshooting, Testing and Adjustment | 267-302 | Hydraulic Circuit Description (Boom, Arm, Bucket, Swing, Travel), Pump Input Power Control, Troubleshooting Baseline, Pressure Checks and Regulator Adjustment, Meter Kit Installation |
| Hydraulics - Accumulator and Center Joint (Swivel) | 303-324 | Accumulator SP002455 (Gas Charge, Safety, Charge Pressure by Model), Center Joint SP002456 (Function, Seal Replacement, Adjustment) |
| Hydraulics - Cylinders | 325-364 | Boom, Arm and Bucket Cylinders SP002579: Theory of Operation, Parts Lists, Seal and Bushing Dimensions, Disassembly and Reassembly, Wear Limits |
| Hydraulics - Swing Device | 365-414 | Swing Motor and Gearbox SP002498: Structure, Anticavitation and Relief Valves, Cylinder Block, Brake Piston, Inspection, Reassembly, Wear Standards |
| Hydraulics - Travel Device | 415-474 | Travel Motor and Reduction Gear SP002514: 2-Stage Switching Mechanism, Brake Release, Disassembly of Reduction Gear, Floating Seal Fitting, Air Testing, Efficiency Checks |
| Hydraulics - Main Pump | 475-530 | Rexroth A8VO80LA1KH1/63 Main Pump SP002531: Subassemblies, Regulator and Control Module Lr, Adjustment Measurements, Bearing and Cup Inspection, Tightening Torques |
| Hydraulics - Gear Pump | 531-542 | Gear Pump SP002500: Disassembly and Assembly, Seal Fitting, 45 Nm Torque Value |
| Hydraulics - Main Control Valve | 543-594 | Main Control Valve SP002584: Spool Movement (Swing, Boom, Arm, Travel), Neutral Cut Spool, Anti-Drift Valve, Main and Negacon Relief Valves, Disassembly Precautions, Specifications and Troubleshooting |
| Hydraulics - Remote Control Valve (Work Lever / Joystick) | 595-616 | Joystick Valve SP-series: Theory of Operation, Performance Checks, Disassembly, Plug Kit Assembly, Wiring Routing |
| Hydraulics - Travel Control Valve (with Damper) | 617-644 | Travel Pedal Valve: Neutral and Operating Conditions, Removal of Pedal and Bellows, Spring and Plug Assembly, Installation and Function Test |
| Hydraulics - Solenoid, Breaker Eppr and Dozer Valves | 645-682 | Solenoid Valve Assembly SP002406, Breaker Eppr Proportional Reducing Valve SP002458 (Option), Dozer Valve SP002529: Parts Lists, Assembly Torques, Symptoms and Causes |
| Hydraulics - Hydraulic Schematic (DX180LC-3) | 683-690 | Full Hydraulic Schematic SP002532, Circuit Legend, Optional Circuits |
| Electrical System | 691-856 | Electrical Supply System, Engine Starting Circuit, Charging System, Monitoring System, Electronic Hydraulic Control System (Epos), Air Conditioner System |
| Attachments | 857-882 | Boom and Arm, Bucket |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Swing Device | SP002498 | p. 4 |
| Hydraulic Schematic (DX180LC-3) | SP002532 | p. 4 |
| Oil seal damaged Assembly compound (joint sealer) old and not sealing. Or bolt not tight or flange warped. | Replace oil seal Disassemble and check mating surfaces. Reapply Loctite; torque bolts to specifications. | p. 297 |
| Gearbox casing becomes excessively hot, with or without irregular noise (s), during operation. | Replace oil; refill to specified level. Repair or replace gearbox. | p. 297 |
| No.1 Sun Gear | Module: 3, No. of teeth: 23 | p. 371 |
| No.2 Sun Gear | Module: 3, No. of teeth: 22 | p. 371 |
| Ring Gear | Module: 3, No. of teeth: 82 | p. 371 |
| Oil seal replacement | Replace the oil seal. | p. 389 |
| Oil leak from joint surface | The bolt is loose or not tightened. | p. 389 |
| Oil temperature | Reduce the oil temperature. | p. 388 |
| Lift ring gear | ring gear (801) | p. 371 |
