Doosan DX140LC Shop Manual K1027955AE-1 – Serial 5457 & Up Excavator Repair PDF

Description

Doosan DX140LC Shop Manual K1027955AE-1

This Doosan DX140LC Shop Manual is the complete service and repair guide for DX140LC excavators from serial number 5457 and up. Published under document number K1027955AE-1, this PDF workshop manual gives technicians, mechanics, and equipment owners direct access to the same procedures used for professional maintenance, troubleshooting, and overhaul of the DX140LC machine.

Whether you are servicing a single excavator or managing a fleet, the Doosan DX140LC Shop Manual provides the detailed, system-by-system information needed to diagnose faults, perform repairs, and maintain the machine to specification. Every major assembly is covered, from the DL06 engine and hydraulic pumps to the swing bearing, travel motors, control valves, and electrical system.

File Details

• Manual Type: Shop Manual (Service & Repair)
• Brand: Doosan
• Model: DX140LC
• Document Number: K1027955AE-1
• Serial Number Range: 5457 and Up
• Language: English
• File Format: PDF
• Page Count: Approximately 910 pages

Chapters Covered

The Doosan DX140LC Shop Manual is organized into major sections that mirror the machine’s structure and systems. The table of contents includes:

• Safety – Track Excavator Safety
• Specifications – Specification for DX140LC
• General Maintenance – General Maintenance Procedures, Standard Torques
• Upper Structure – Cabin (NON-ROPS), Cabin (ROPS), Counterweight, Fuel Tank, Fuel Transfer Pump (Opt), Swing Bearing, Swing Reduction Gear
• Lower Structure and Chassis – Track Assembly
• Engine and Drive Train – Drive Coupling (Main Pump)
• Hydraulics – Hydraulic System Troubleshooting, Testing and Adjustment, Accumulator, Center Joint (Swivel), Cylinders, Swing Motor, Travel Motor, Main Pump, Main Control Valve, Remote Control Valve (Work Lever / Joystick), Travel Control Valve (with Damper), Solenoid Valve Assembly, Breaker EPPR Valve (Opt), Hydraulic Schematic (DX140LC)
• Electrical System – Electrical System (NON-ROPS), Electrical System (ROPS), Electrical Schematic (NON-ROPS), Electrical Schematic (ROPS)
• Attachments – Boom and Arm, Bucket

The depth of coverage in this DX140LC shop manual goes well beyond routine maintenance. Each section includes component descriptions, theory of operation, removal and installation procedures, disassembly and reassembly steps, inspection criteria, wear limits, torque values, and troubleshooting charts. The hydraulic section alone spans hundreds of pages with detailed circuit explanations, pressure adjustment procedures, and diagnostic tables for the main pump, control valve, swing motor, travel motor, and remote control valve.

What This Doosan DX140LC Shop Manual Enables

With this Doosan DX140LC repair manual on hand, a technician can confidently tackle jobs that would otherwise require guesswork or trial-and-error. The manual supports:

• Engine and drive train service – Drive coupling removal and installation with precise clearance measurements (Measure H: 3.0 – 7.0 mm) and torque specifications for the DL06 engine application.
• Hydraulic system diagnosis and repair – Pilot pressure testing, main relief pressure adjustment (330 kg/cm² standard, 350 kg/cm² with pressure up), power mode valve current and pressure settings, pump regulator adjustment, and swing/travel motor overhaul procedures.
• Electrical troubleshooting – Complete wiring schematics for both NON-ROPS and ROPS configurations, e-EPOS controller diagnostics, self-diagnostic function codes, air conditioner system troubleshooting, wiper and lighting circuits, and audio controller pinouts.
• Undercarriage work – Track tension adjustment, track shoe and link inspection with wear limits, front idler and roller disassembly/reassembly, and track spring cylinder service.
• Upper structure repairs – Cabin removal and installation for both ROPS and NON-ROPS versions, counterweight removal with stability warnings, fuel tank service, swing bearing axial and lateral play measurement, and swing reduction gear overhaul.
• Attachment service – Boom and arm pin specifications, removal and installation procedures, bucket tooth replacement, bucket O-ring service, and attachment reversal.

Why the Doosan DX140LC Shop Manual Matters

The DX140LC is a 14-ton class excavator powered by the DL06 engine, producing 96 PS at 1,850 rpm with a maximum torque of 44.5 kg·m at 1,400 rpm. Its hydraulic system uses two variable displacement axial piston pumps with a total displacement of 63 cc/rev each, operating at a main relief pressure of 330 kg/cm² (4,689 psi) in normal operation and 350 kg/cm² (4,970 psi) with pressure up. The pilot pump is a gear type delivering 15 cc/rev with a relief pressure set at 40 kg/cm².

These are precise specifications. Operating the machine outside them—or attempting repairs without the correct procedures—can lead to component failure, reduced service life, and costly downtime. The Doosan DX140LC Shop Manual K1027955AE-1 eliminates that risk by providing the exact values, sequences, and precautions required for every major service task.

For example, the manual specifies that the drive coupling Measure H must be set between 3.0 and 7.0 mm to avoid noise and premature wear on the coupling or main pump. It details the pump regulator adjustment process, noting that a 1/4 turn on the larger diameter adjusting screw equals approximately 17 horsepower—information that is critical when balancing pump output or addressing engine overloading complaints. The swing bearing section explains how to measure axial and lateral play, with the recommendation that checks be made at least twice a year to track wear progression.

The electrical system coverage is equally thorough. The e-EPOS controller self-diagnostic function can be accessed to read fault codes, and the manual provides a complete failure information code table for both machine-side codes (V201 through V230) and engine-side codes (E011 through E101). This allows a technician to pinpoint issues quickly rather than replacing parts blindly.

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Instant PDF Delivery

This Doosan DX140LC Shop Manual is delivered as an instant PDF download after payment. There is no shipping, no waiting for a physical book, and no risk of a damaged or lost package. The file can be viewed on any device—laptop, tablet, or smartphone—and printed pages can be taken directly to the machine when needed.

Whether you are performing a routine 500-hour service, diagnosing a hydraulic fault, overhauling a travel motor, or rebuilding a swing reduction gear, this manual gives you the complete, model-specific information to do the job correctly. It is the definitive reference for the DX140LC excavator, covering serial numbers 5457 and up.