Doosan DX225LCA Service Manual (English)

Other manuals for Doosan DX225LCA

Questions and Answers:

K
Kevin AndersonAug 14, 2025
What to do if the starter does not operate on my Doosan Excavators?
- L
  Linda GreeneAug 14, 2025
  If the starter on your Doosan Excavators fails to operate, several issues could be the cause. First, ensure the battery has sufficient power by charging it. Check for poor terminal contact and clean and tighten the connections. Other potential causes include a failed starter switch, starter relay, starter controller, battery relay, or a faulty wiring harness, each requiring replacement. Also, inspect for a blown fuse and replace it if necessary.
W
wallcrystalAug 17, 2025
Why won't the battery hold a charge in my Doosan DX225LCA?
- B
  Bonnie WarrenAug 17, 2025
  If the battery in your Doosan Excavators won't hold a charge, it could be due to several reasons. Check for low battery power and clean and retighten the connections. A loose or bad alternator belt can also be the cause, so tighten or replace the belt. Inspect for loose or corroded terminals and tighten or replace them as needed. Finally, the alternator itself might be faulty, requiring repair or replacement.
A
atkinsmaryAug 21, 2025
What to do if the starter engages but the engine does not start on Doosan DX225LCA?
- D
  David JacksonAug 21, 2025
  If the starter engages but the engine doesn't start on your Doosan Excavators, consider these possibilities: Fuel may have gelled in cold weather, requiring you to replace the fuel. The fuel filters might be plugged, so replace them. There could be water or dirt in the fuel system, necessitating a cleaning of the system and the addition of new fuel. Air in the fuel system could also be the problem, requiring you to purge the air from the system. A failed engine stop relay can also cause this issue, so replace the relay. Finally, check for a blown fuse and replace it if necessary.
M
Madeline RamirezAug 25, 2025
Why do Doosan DX225LCA have poor power?
- D
  Dominique JacksonAug 25, 2025
  Poor power in your Doosan Excavators can be attributed to several factors. A plugged air intake system can restrict performance, so clean the system and replace the filter. Clogged or dirty fuel injectors can also cause this, so clean the injectors. Additionally, plugged fuel filters can limit power, so replace the filters. The engine speed control cable might be out of adjustment, requiring readjustment. Finally, faulty valve backlash can contribute to poor power, so adjust the backlash.
L
laurakimAug 27, 2025
What causes a Doosan DX225LCA engine to knock, run unevenly, or surge?
- C
  christina77Aug 27, 2025
  If your Doosan Excavators engine knocks, runs unevenly, or surges, several factors could be responsible. Low engine oil can cause these issues, so refill the oil. A plugged air intake system can also lead to these problems, so clean the system and replace the filter. A plugged fuel filter can also be the cause, so replace the fuel filter. Water or dirt in the fuel system may also be a factor, requiring you to clean the system and add new fuel. Clogged or dirty fuel injectors might also be the cause, so clean the injectors.
L
Lauren BrownAug 30, 2025
Why does the engine start but runs only at low speed or shuts down on my Doosan DX225LCA?
- M
  Matthew ChangAug 30, 2025
  If your Doosan Excavators engine starts but runs only at low speed or shuts down, it could be due to incorrect engine oil viscosity, so change the oil. Clogged or dirty fuel injectors can also cause this issue, so clean the injectors. Another potential cause is plugged fuel filters, so replace the filters.
P
pettyrussellSep 3, 2025
How to troubleshoot uncontrollable engine speed on Doosan DX225LCA Excavators?
- J
  Jason SuttonSep 3, 2025
  If the engine speed is not controllable on your Doosan Excavators, several components could be at fault. A failed speed control dial or throttle controller would each require replacement. The speed control motor might have failed, necessitating repair or replacement. A blown fuse could also cause this issue, so replace the fuse. Damaged wiring harness or a failed connector could also be the cause, each requiring repair or replacement.
A
Adam MorganSep 6, 2025
What to do if the power mode selector does not work on Doosan DX225LCA?
- A
  Angela Vance DDSSep 6, 2025
  If the power mode selector on your Doosan Excavators does not work, begin by checking for a blown fuse and replace it. Other potential causes include a failed power mode selector switch, which would need replacement, or a failed connector, which should be replaced. A damaged wiring harness or a failed e-EPOS controller could also be the cause and should be repaired or replaced.
K
Kelly HarrisSep 9, 2025
What to do if the solenoid valve won't function properly in my Doosan DX225LCA?
- E
  ericmontesSep 9, 2025
  If the solenoid valve in your Doosan Excavators isn't functioning correctly, there are several potential causes and solutions: * Foreign materials or contaminants in the valve: Remove the foreign materials and clean the contaminated area. * Damaged tube and retainer: Replace the valve. * Broken wire, short-circuiting, or thermal reactions in the coil: Replace the coil. * Faulty connection to the terminal in the connector: Replace the faulty housing and terminal.

Doosan DX225LCA Specifications

General

Maximum Digging Depth	6, 620 mm
Fuel Tank Capacity	400 l
Engine Power	110 kW
Bucket Capacity	0.93 - 1.28 m³
Travel Speed	5.5 km/h

Summary

Safety Information

To the Operator of a Doosan Excavator

General safety advice for operators, emphasizing responsibility and awareness of potential hazards.

Location of Safety Labels

Summary of Safety Precautions for Lifting in Digging Mode

Outlines critical safety measures and considerations for lifting operations in digging mode.

Unauthorized Modifications

Warns against modifications and stresses the use of genuine parts for safety and performance.

General Hazard Information

Covers safety rules, features, and general hazard awareness for machine operation and maintenance.

Inside Operator's Cabin and Personal Safety

Mounting, Dismounting, and Fire Safety

Fuel, Oil, and Hydraulic Fluid Fire Hazards

Addresses fire risks associated with flammable fluids and precautions during refueling.

Precautions When Handling Fluids at High Temperature

Warns about handling hot fluids and the need to wait for cooling before service.

Hazard Prevention and Emergency Procedures

Injury from Work Equipment

Warns about hazards of moving parts and the need to secure equipment before working.

Fire Extinguisher and First Aid Kit

Recommends availability and use of fire extinguishers and first aid kits for emergencies.

Protection from Falling or Flying Objects

Advises on selecting guards and protective structures for cabin safety against falling objects.

Attachment and System Precautions

Accumulator Safety

Explains accumulator function and safety precautions for handling it due to high pressure.

Pre-Operation Checks and Procedures

Work Site Precautions

Details pre-operation checks of the work site terrain, hazards, and safety measures.

Checks Before Starting Engine

Lists daily checks required before the first engine start to prevent injury.

Engine Starting Procedure

Outlines steps for safe engine start-up, including walk-around checks and site hazards.

Before Operating Machine Checks

Details post-start checks for equipment operation, hazards, and safe travel preparation.

Machine Operation Guidelines

Swinging and Travel Direction Changes

Provides safety precautions for swinging the upper structure and changing travel direction.

Travel Precautions

Outlines safe practices for machine travel, including speed, work equipment folding, and terrain.

Traveling on Slopes

Details safety precautions for operating the machine on slopes to prevent tipping.

Prohibited Operations

Lists specific operations that are dangerous and must be avoided to prevent accidents.

Operational Safety and Environmental Considerations

General Operation Precautions

Covers visibility, collision avoidance, and overhead hazard awareness during operation.

Avoiding High Voltage Cables

Warns about proximity to high-voltage lines and specifies safe distances.

Machine Operation and Parking Safety

Operations on Slopes

Details specific safety measures for working on slopes to prevent tipping.

Parking Machine Safely

Outlines safe procedures for parking the machine, including ground selection and securing controls.

Never Let Anyone Ride on Attachment

Prohibits carrying passengers on any work attachment due to fall risk.

Maintenance Preparations and Safety

Fire Prevention and Explosion Prevention

Covers fire and explosion hazards related to fuels and lubricants, with storage precautions.

Burn Prevention and Welding Safety

Burn Prevention Precautions

Provides precautions for preventing burns from hot components, fluids, and battery electrolyte.

Counterweight and Front Attachment Removal Warning

Warns about stability issues and hazards when removing counterweight or attachments.

Machine Working Precautions

Operational Hazards and System Precautions

Prevention of Crushing and Cutting

Covers safety precautions when the engine is running or parts are moving.

Track Tension Adjustment Caution

Warns about high pressure in track tension systems and safe adjustment procedures.

Supports and Blocking for Work Equipment

Advises against suspending loads and using inadequate supports for work equipment.

Inspection and System Precautions

Action When Abnormality Found During Inspection

Stresses immediate repair of any found abnormalities, especially in critical systems.

Precautions with High-pressure Lines, Tubes and Hoses

Details safety measures for handling high-pressure hydraulic components to prevent injury.

Battery Safety and Handling

Battery Hazard Prevention

Outlines hazards of battery electrolyte and hydrogen gas, and necessary safety measures.

Battery Starting and Charging Procedures

Boost Starting or Charging Engine Batteries

Provides safety guidelines for jump-starting or charging batteries to prevent explosions or fires.

Towing Safety Precautions

Precautions When Towing

Details safety procedures and equipment selection for towing the excavator to prevent injury.

Excavator Rated Lift Capacity

Excavator Rated Lift Capacity Tables

Warns about exceeding lift capacity and factors affecting stability, stressing adherence to tables.

Lifting Operations Guidance

Lifting Operation Safety Guidelines

Provides guidelines for safe lifting, including load stability, movement clearance, and operator familiarity.

Operating Controls Overview

Operational Controls and Panels

Starter Switch Operation

Explains the function and operation of the three-position starter switch.

Engine and Attachment Controls

Instrument Panel and Safety Lever

Instrument Panel Overview

Safety Lever Function

Refers to the safety lever operation details.

Instrument Panel Indicators and Gauges

Instrument Panel Layout and Components

Provides a diagram and list of indicators and gauges on the instrument panel.

System Checks and Warnings

Password System for Engine Start

Explains the password system for engine start and security.

System Warning Lights

Engine Oil Pressure Warning Light

Details the engine oil pressure warning light and its implications.

Engine Coolant Temperature Warning Light

Explains the coolant temperature warning light and engine protection measures.

Hydraulic Pressure and Warning Symbols

Abnormal State Warning Symbols

Lists warning symbols for various abnormal conditions.

Warning Display Examples

Examples of Warning Displays

Shows examples of warning displays on the screen with different numbers of warnings.

Specific System Warning Indicators

Overload Warning (Optional)

Describes the overload warning symbol, buzzer, and load reduction procedure.

Engine Start Security System

Set Password (Lock and Unlock) Procedure

Explains how to set, write down, and manage the engine start password.

Password Management Menu

Password Menu Options and Procedures

Details the password menu items (Lock, Unlock, Change Password) and procedures.

Miscellaneous Electrical Devices

Pilot Cutoff Switch Operation

Explains how the safety lever deactivates work and travel levers.

Seat Adjustment Procedures

Seat Adjustment Warning and Guidelines

Provides a warning about seat adjustment and general guidelines for proper positioning.

Seat Belt Safety and Operation

Seat Belt Safety and Usage

Warns about seat belt importance and provides instructions for locking, unlocking, and adjusting.

Front Window Operation and Storage

Front Windows Safety Warning

Warns about safety when leaving the operator's seat and stowing the front upper window.

New Excavator Handling Procedures

Handling a New Excavator Break-in

Provides initial break-in procedures for new excavators to ensure performance and longevity.

Initial Lubrication and Engine Start

Inspection Before Starting Engine

Outlines pre-start checks for electrical, fuel, hydraulic systems, lubrication, and safety.

Pre-Start Engine Checks

Operational Checks Before Starting Engine

Details critical checks before starting the engine, including safety lever, seat belt, and indicators.

Engine Starting Procedure

Engine Start Sequence

Guides through the engine start procedure, including password entry and warm-up.

Cold Weather Engine Starting

Cold Weather Starting Procedure

Provides specific steps for starting the engine in cold weather using the preheat system.

Booster Battery Starting Procedures

Starting Engine With a Booster Cable

Details safety precautions and procedures for jump-starting the engine with booster batteries.

Booster Battery Connection and Disconnection

Connecting Booster Batteries Safely

Provides step-by-step instructions for connecting booster cables safely.

Disconnecting Booster Batteries Safely

Outlines the correct procedure for disconnecting booster cables.

Hydraulic System Warm-up Procedures

Hydraulic System Warm-up

Explains the procedure to warm up the hydraulic system for correct operating temperature.

Cold Weather Hydraulic System Warm-up

Details warm-up procedures specifically for cold weather conditions.

Engine Shut Down Procedure

Standard Engine Shut Down

Provides the standard procedure for shutting down the engine safely.

Safety Lever Operation

Safety Lever Function and Precautions

Explains the function and safe operation of the safety lever to prevent accidental movement.

Travel Control Lever Operation

Travel Control Lever Usage

Details how to operate travel control levers for straight travel, pivot turns, and stopping.

General Travel Safety Instructions

General Travel Guidelines

Provides general guidance for traveling, including speed settings, terrain, and equipment positioning.

Slope Travel Safety Precautions

Traveling on Slopes Safely

Operating Instructions and Controls

Engine Speed Control Adjustment

Explains how to adjust engine speed manually and the procedure for electrical malfunction.

Work Lever (Joystick) Operation

Work Levers (ISO Style) Functions

Explains the ISO standard lever configuration for controlling boom, arm, bucket, and swing.

Work Levers (BHL Style) Operation

Work Levers (BHL Style) Functions

Explains the BHL style lever configuration for controlling boom, arm, bucket, and swing.

General Operating Precautions

Warns against resting feet on travel pedals and outlines general operational precautions.

Prohibited Operating Practices

Avoiding Breakout Force Misuse

Prohibits using travel/swing or machine weight for breakout force.

Precautions on Soft Ground and Edges

Advises on ensuring solid ground and positioning when near edges or on soft terrain.

Prohibition of Undermining Excavation

Prohibits excavating underneath the machine.

Operational Hazard Avoidance

Overhead Electrical Line Clearance

Advises to ensure clearance from overhead electrical lines.

Prohibition of Bucket Use as Hammer

Prohibits using the bucket as a hammer due to damage risk.

Prohibition of Digging with Raised Tracks

Warns against digging with raised tracks to prevent structural failures.

Travel and Swinging Precautions

Quick Travel Lever Operation

Advises against quick travel lever operation and sudden stops.

Prohibition of Swinging into Objects

Prohibits swinging into objects to move them, preventing structural failures.

Parking Excavator Safely

Parking Excavator Procedure

Gives warnings and procedures for parking the excavator safely on firm, level ground.

Towing Procedures and Safety

Towing Procedure Guidelines

Details safety precautions and proper methods for towing the excavator.

Hydraulic Breaker Operation Guidelines

Hydraulic Breaker Operational Guidelines

Provides operational guidelines for the hydraulic breaker, including manual reading and inspection.

Breaker Operational Safety

Breaker Operation Direction and Slope Safety

Specifies operating the breaker only in front/rear directions and avoiding swinging on slopes.

Breaker Activation and Valve Adjustment

Relief Valve Adjustment Procedure

Details the procedure for adjusting the relief valve pressure for the breaker, with safety warnings.

Hydraulic Oil and Filter Service Intervals

Service Intervals for Hydraulic Oil and Filters

Provides service intervals for hydraulic oil and filters when using a hydraulic breaker.

Operating Techniques for Lifting

General Lifting Safety Guidelines

Provides important safety guidelines and techniques for lifting loads with the excavator.

Lifting and Carrying Load Procedures

Lifting Known Weights Safely

Discusses using load charts and feeling out lifts for stability.

Pick and Carry Load Techniques

Offers recommendations for picking and carrying loads safely, evaluating conditions.

Maintenance Overview

Preventive Maintenance Program

Introduces routine maintenance and inspections for keeping the machine in operating condition.

Maintenance Setup Procedures

Preliminary Work Machine Setup

Outlines the standard procedure for parking the excavator before performing maintenance.

Lubrication Recommendations and Service Chart

Table of Recommended Lubricants

Provides a table of recommended fluids and lubricants based on ambient temperature.

Lubrication and Service Chart Explanation

Introduces the chart showing lubrication and service symbols and intervals.

DX225LCA Service Data Table

Provides a table of service items, quantities, and intervals for the DX225LCA.

Maintenance Intervals Schedule

10 Hour / Daily Service Items

Lists daily service checks and greasing intervals for pins.

Check Engine Oil Level Procedure

Provides instructions for checking the engine oil level using a dipstick.

Fluid Level Checks and Maintenance

Check Hydraulic Oil Tank Level

Details the procedure for checking and filling the hydraulic oil tank level.

System Leak Checks and Fuel System

Check for Hydraulic System Leaks

Check Fuel Level and Refueling Precautions

Details how to check and fill the fuel tank, including safety precautions.

Cooling System and Air Intake Maintenance

Check and Refill Cooling System

Explains how to check and refill the engine cooling system, including antifreeze precautions.

Operational Checks and Controls Verification

Engine Start Ability and Behavior Check

Guides on checking starting ability and observing engine behavior.

Check Operation of All Controls

Advises operating all controls at rated speed and following warm-up procedures.

50 Hour / Weekly Service Intervals

Fuel Tank and Belt Maintenance

Engine Oil and Filter Change (Initial)

Provides initial oil and filter change intervals and refers to further details.

Arm and Attachment Pin Greasing

Grease Arm and Front Attachment Pins

Details greasing intervals for arm and front attachment pins.

Engine Oil and Filter Change

Engine Oil and Filter Change Intervals

Provides initial and subsequent intervals for engine oil and filter changes.

Fuel Filter Replacement and Priming

Change Fuel Filter Procedure

Outlines the procedure for changing the fuel filter.

Fuel System Priming Procedure

Explains how to bleed air from the fuel system after running out of fuel or filter replacement.

Radiator Coolant Change Procedure

Change Radiator Coolant Safely

Provides instructions for changing radiator coolant, including safety warnings and antifreeze precautions.

Hydraulic System Maintenance

Hydraulic Oil Exchange and Strainer Cleaning

Details hydraulic oil change intervals and suction strainer cleaning procedures.

4,000 Hour / Biennial Service

Major Parts Periodic Replacement

Lists major parts that require periodic replacement for safety and longevity.

Bolt and Nut Inspection Procedures

Bolt and Nut Inspection Requirements

Details fastener inspection intervals and torque specifications for various points.

Bucket Tooth Replacement Procedure

Bucket Tooth Replacement Safety

Provides instructions and safety precautions for replacing bucket teeth.

Electrical System Overview

Battery Hazards and Precautions

Discusses battery hazards and precautions, including cold weather handling.

Engine Cooling System Maintenance

General Cooling System Care

Offers general advice on maintaining the cooling system for optimal performance and longevity.

Accumulator Handling Safety

Handling of Accumulator Precautions

Details safety precautions for handling accumulators and releasing pilot accumulator pressure.

Track Tension Adjustment and Safety

Track Tension Measurement and Adjustment

Provides warnings and instructions for safely measuring and adjusting track tension.

Track Tension Adjustment Details

Track Tension Adjustment Procedure

Details how to adjust track tension using the grease fitting and valve, with safety warnings.

Hydraulic System Venting and Priming

Main System Pump Venting Procedure

Explains how to vent air from the main hydraulic pump and system.

Hydraulic Cylinders Venting Procedure

Details procedures for venting air from hydraulic cylinders.

Transportation Guidelines

Warning for Counterweight and Attachment Removal

Warns about stability issues and hazards when removing counterweight or attachments.

Lifting with Sling Safety

Lifting Machine with Sling Guidelines

Provides safety guidelines and procedures for lifting the machine with slings.

Troubleshooting Electrical System Issues

Electrical System Problems and Remedies

Lists common electrical problems, their causes, and remedies.

Troubleshooting Engine Issues

Engine Problems, Causes, and Remedies

Lists common engine problems, their causes, and remedies.

Troubleshooting Hydraulic System Issues

Hydraulic System Problems and Remedies

Lists common hydraulic system problems, their causes, and remedies.

Machine Specifications

Standard Specification Details

Provides technical specifications for the machine in metric and English units.

Machine Working Range

Working Range Diagram and Data

Displays graphical representations and tables of the machine's working range.

Related product manuals

Doosan DX225LCA Service Manual

Table of Contents

Other manuals for Doosan DX225LCA

Questions and Answers:

Doosan DX225LCA Specifications

Summary

Safety Information

To the Operator of a Doosan Excavator

Location of Safety Labels

Summary of Safety Precautions for Lifting in Digging Mode

Unauthorized Modifications

General Hazard Information

Inside Operator's Cabin and Personal Safety

Mounting, Dismounting, and Fire Safety

Fuel, Oil, and Hydraulic Fluid Fire Hazards

Precautions When Handling Fluids at High Temperature

Hazard Prevention and Emergency Procedures

Injury from Work Equipment

Fire Extinguisher and First Aid Kit

Protection from Falling or Flying Objects

Attachment and System Precautions

Accumulator Safety

Pre-Operation Checks and Procedures

Work Site Precautions

Checks Before Starting Engine

Engine Starting Procedure

Before Operating Machine Checks

Machine Operation Guidelines

Swinging and Travel Direction Changes

Travel Precautions

Traveling on Slopes

Prohibited Operations

Operational Safety and Environmental Considerations

General Operation Precautions

Avoiding High Voltage Cables

Machine Operation and Parking Safety

Operations on Slopes

Parking Machine Safely

Never Let Anyone Ride on Attachment

Maintenance Preparations and Safety

Fire Prevention and Explosion Prevention

Burn Prevention and Welding Safety

Burn Prevention Precautions

Counterweight and Front Attachment Removal Warning

Machine Working Precautions

Operational Hazards and System Precautions

Prevention of Crushing and Cutting

Track Tension Adjustment Caution

Supports and Blocking for Work Equipment

Inspection and System Precautions

Action When Abnormality Found During Inspection

Precautions with High-pressure Lines, Tubes and Hoses

Battery Safety and Handling

Battery Hazard Prevention

Battery Starting and Charging Procedures

Boost Starting or Charging Engine Batteries

Towing Safety Precautions

Precautions When Towing

Excavator Rated Lift Capacity

Excavator Rated Lift Capacity Tables

Lifting Operations Guidance

Lifting Operation Safety Guidelines

Operating Controls Overview

Operational Controls and Panels

Starter Switch Operation

Engine and Attachment Controls

Instrument Panel and Safety Lever

Instrument Panel Overview

Safety Lever Function

Instrument Panel Indicators and Gauges

Instrument Panel Layout and Components

System Checks and Warnings

Password System for Engine Start

System Warning Lights

Engine Oil Pressure Warning Light

Engine Coolant Temperature Warning Light

Hydraulic Pressure and Warning Symbols

Abnormal State Warning Symbols

Warning Display Examples

Examples of Warning Displays