SBN1004

DX-A Excavator Component Location

-

Excavator

COURSE CURRICULUM

COURSE OBJECTIVES

After completion of this course, you will be able to:

1) Identify components of DX-A excavators

2) Explain functions of major components

1. Component

Location

2. Operation &

Maintenance

3. DX-A

Excavators

Crawler Excavator DX300LCA

DX 300 LC A

Machine weight

Model name

Long Crawler type

Tier 2 Engine

(Mechanical)

Product Naming

PRODUCT IDENTIFICATION

PRODUCT IDENTIFICATION

D H K C E B A C K E 0 0 1 5 4 9 6

PRODUCT IDENTIFICATION

DHK : means that this was manufactured in Doosan(FACTORY)

CEBAC: means DX225LCA (MODEL)

K : is code for checking validation of pin no.

(VERIFICATION CODE)

E0015396 : is machine serial no. (SERIAL No.)

Undercarriage (Lower structure)

Counterweight

Cabin

Bucket

Boom

Arm

Bucker Cylinder

Arm Cylinder

Boom Cylinder

Engine hood

MAJOR COMPONENT LOCATION

Tooth

Guide Link

Tooth Adapter

MAJOR COMPONENT LOCATION

Bucket

Side Cutter

Push Link

Bucket Pin

Travel device

Idler & Track Spring

Lower roller

Track shoe

Track guard

Upper roller

MAJOR COMPONENT LOCATION

Sprocket

► Click on the name to see the image.

MAJOR COMPONENT LOCATION

Sprocket

MAJOR COMPONENT LOCATION

Travel device

(Travel motor + Reduction Gear)

Track guard

MAJOR COMPONENT LOCATION

Lower roller

MAJOR COMPONENT LOCATION

Track shoe

MAJOR COMPONENT LOCATION

MAJOR COMPONENT LOCATION

Idler &

Track spring

Upper roller

MAJOR COMPONENT LOCATION

Main Pump

Swing Device

MAJOR COMPONENT FUNCTION

Travel Device

► Click on the name to see the function of each component.

Diesel Engine

Main Control Valve

Cylinders

• Main Pump

- Discharge hydraulic oil flow to

main control valve with the help of

rotation of engine

• Main Control Valve

- Distribute actuators such as

cylinders, motors to operate the

machine

•Engine

- As a source of energy, it creates

rotational energy

• Swing Device

-Swing Motor: Change

hydraulic energy to rotating

mechanical energy (High

shaft speed – Low torque)

-Swing Reduction Gear :

Change high motor speed to

low speed for machine swing.

(Reduce motor shaft speed –

Increase swing output power)

• Cylinders

- Convert hydraulic energy to

mechanical energy.

• Travel Device

Travel Motor: Change

hydraulic energy to rotating

mechanical energy

Travel Reduction Gear :

Change high motor speed to

low speed for machine

traveling.

(Reduce motor speed,

Increase output power)

Front Control Joystick

CABIN COMPONENT & SWITCHES

LCD

Gauge Panel

► Click on the name to see the detail

CABIN COMPONENT & SWITCHES

Front Control Joystick(Left)

Horn

Rotating

Boost

Shear

Front Control Joystick(Right)

CABIN COMPONENT & SWITCHES

DX 7 inch LCD Panel

• DX Tier3 Series (new)

• DX225LC, DX300LC…

• DX-A Tier2 series

• DX300LCA, DX340LCA, etc)

DX 3.8 inch LCD

• NO trenching mode

• DX-A Tier2 series

• only DX225LCA

LCD Gauge Panel

CABIN COMPONENT & SWITCHES

Safety Lever Hour Meter

Key Switch

RPM Dial

Travel Speed Selector

Light Switch

Breaker/Boost/

Shear Selector

Heater & A/C

Controller

Wiper Controller

► Click on the name to see image.

CABIN COMPONENT & SWITCHES

Key Switch

Hour Meter

CABIN COMPONENT & SWITCHES

Safety Lever

CABIN COMPONENT & SWITCHES

Key Switch

CABIN COMPONENT & SWITCHES

RPM Dial

CABIN COMPONENT & SWITCHES

Travel Speed Selector

CABIN COMPONENT & SWITCHES

Light Switch

CABIN COMPONENT & SWITCHES

Breaker/Boost/Shear

Selector

CABIN COMPONENT & SWITCHES

Heater & A/C

Controller

CABIN COMPONENT & SWITCHES

Wiper Controller

Thank you for your attention.

• In this course, you :

☞ Identified components of Doosan DXA Excavator

☞ Learned the function of major components

☞ Identified components and switches in cabin

Continue to ‘Course survey’ & ‘Quiz’ to complete the course.

COURSE SUMMARY – DX-A Component Location