Part of the Doosan Repair Manuals.
This is the factory shop manual for the 2009 Doosan DX140R and DX140LCR reduced tail swing crawler excavators, publication K1049551E. The whole Cummins QSB4.5 engine service book is bound in (pages 251 to 524), so you get engine troubleshooting symptom charts, maintenance intervals out to 2,000 hours, and specifications alongside the machine side: swing reduction gear, travel and swing motors, main pump teardown, main control valve, track assembly wear limits, and cabin-to-swing-bearing removal. Fault code tables with E-codes and V-codes plus FMI numbers are printed on page 928. Full hydraulic schematic (SP001948, page 879) and electrical schematic (SP001950, page 1000) are included. The R and LCR carry separate dimension tables, and this book covers both.
What's Inside This Manual
| System | Pages | Key Topics |
|---|---|---|
| Track Excavator Safety | 9-56 | Safety Precautions, To the Operator of a Excavator, Learn the Signal Words Used with the Safety Alert Symbol, General Safety Essentials, Accessory Applications, Lifting Capacity Rating Configuration |
| Specification for DX140LCR | 57-82 | Safety Precautions, General Description, Component Locations, General Dimensions, One - Piece Boom, Two - Piece Boom |
| General Maintenance Procedures and Standard Torques | 83-120 | Safety Precautions, Welding Precautions and Guidelines, Hydraulic System - General Precautions, Maintenance Service and Repair Procedure, General Precautions, Hydraulic System Cleanliness and Oil Leaks |
| Cabin to Swing Bearing | 121-174 | Safety Precautions, Removal, Installation, Warning for Counterweight and Front Attachment Removal, General Description, Parts List |
| Swing Reduction Gear | 175-218 | Safety Precautions, General Description, Theory of Operation, Reassembly, Parts List, Shrinkage Fitting of Shaft and Flexible Bearing |
| Track Assembly | 219-250 | Safety Precautions, General Description, Track Tension, Cleaning and Inspection (Wear Limits and Tolerances), Track Shoe, Lower Roller |
| QSB4.5 Engine - Safety Precautions to Engine Identification | 251-297 | Safety Precautions, QSB4.5 Engine, Important Reference Numbers, General Information, To the Owner and Operator, About the Manual |
| QSB4.5 Engine - Operating Instructions to Maintenance Procedures at 1,000 Hours or 1 Year | 298-333 | Operating Instructions, Operating Instructions -Overview, General Information, Normal Starting Procedure, Jump Starting, Cold Weather Starting |
| QSB4.5 Engine - Maintenance Procedures at 2,000 Hours or 2 Years to Service Literature | 334-391 | Maintenance Procedures at 2, 000 Hours or 2 Years, Air Compressor Discharge Lines (Not Used), Cooling System, Vibration Damper, Rubber, Viscous, Overhead Set |
| QSB4.5 Engine - Service Assistance | 392-444 | Service Assistance, Routine Service and Parts, Emergency and Technical Service, Problem Solving, Division and Regional Offices Locations, Distributors and Branches United States |
| QSB4.5 Engine - Troubleshooting Symptoms | 445-494 | Troubleshooting Symptoms, Troubleshooting Procedures and Techniques, Troubleshooting Symptoms Charts |
| QSB4.5 Engine - Maintenance Specifications and Warranty | 495-524 | Maintenance Specifications, General Engine, Fuel System, Lubricating Oil System, Cooling System, Air Intake System |
| Drive Coupling (Main Pump) and Hydraulic System Troubleshooting, Testing and Adjustment | 525-574 | Safety Precautions, Drive Coupling, Special Tools, Installation of Drive Coupling, Installation Procedure, Hydraulic System - General Notes |
| Accumulator to Cylinders | 575-622 | Safety Precautions, General Description, Specifications, Parts List, Troubleshooting, Testing and Adjustment, Inspection |
| Swing Motor | 623-658 | Safety Precautions, Instruction Manual, Indication of Type, Specifications, Construction and Principles of Working, Construction |
| Travel Moter | 659-730 | Safety Precautions, Product Overview, General Specifications, External Dimensions, General Description, Operating Description |
| Main Pump | 731-748 | Safety Precautions, Disassembling and Reassembling Procedures, Tool, Disassembling Procedures, Reassembling Procedures, Pump Maintenance Criteria |
| Main Control Valve | 749-798 | Safety Precautions, General Description, Theory of Operation, Service Spool Movement, Swing Spool Movement, Bucket Spool Movement |
| Remote Control Valve (Work Lever / Joystick) and Travel Control Valve (with Damper) | 799-846 | Safety Precautions, General Description, Theory of Operation, Structure, Function, Parts List |
| Solenoid Valve Assembly to Hydraulic Schematic (DX140LCR) | 847-881 | Safety Precautions, Parts List, Functions of 5-Solenoid Valve Assembly Package, Functions of Solenoid Valve Assembly Package, This Solenoid Valve Assembly Package Have the Following Functions., Functions and Operations of Solenoid Valves |
| Electrical System | 882-993 | Safety Precautions, Electrical Supply System, Engine Starting Circuit, Start Operation, After Start, Engine Preheating System |
| Electrical Schematic (DX140LCR) to Bucket | 994-1024 | Safety Precautions, DX140LCR, Front Attachment Pin Specifications, One-Piece Boom, Two-Piece Boom, Front Attachment - Removal and Installation |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Engine model (DX140LCR) | Cummins QSB4.5, rated to DIN 6270 | p. 71 |
| Rated power (DX140LCR) | 100 ps (98.5 hp) @ 1,800 rpm | p. 71 |
| Fuel tank capacity (DX140LCR) | 235 liters (62.3 U.S. gal) | p. 68 |
| Hydraulic system capacity (DX140LCR) | 131 liters (34.6 U.S. gal) | p. 68 |
| Hydraulic reservoir capacity (DX140LCR) | 93.5 liters (24.7 U.S. gal) | p. 68 |
| Main relief pressure (DX140LCR) | 330 kg/cm² (normal operation) | p. 74 |
| Main control valve sub spool plug torque | 103 - 113 N·m | p. 783 |
| Main control valve cap bolt torque | 20 - 25 N·m | p. 783 |
| Main control valve plug assembly torque range | 19 - 227 N·m depending on the plug | p. 783 |
