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Doosan DX140LC. Operation and Maintenance Manual (2007) - page 2

7. Travel Speed Selector Switch

O

I

WARNING!

II

Do not operate the travel speed selector switch when

unit is in motion. Temporary loss of control could

result.

This switch activates the automatic speed range for travel.

FG000023

O. In this position, "LOW" travel speed is selected.

Figure 14

I.

In this position, "HIGH" travel speed is selected.

II.

In this position, "AUTOMATIC" travel speed is

selected. The travel speed automatically changes

between "LOW" or "HIGH" range, depending on

engine speed and travel motor loads.

8. Light Switch

This switch is used to turn "ON" the lights.

O

I

O. In this position, all lights are "OFF."

II

I.

In this position, all illumination lights of the instrument

panel and the control switches are turned "ON."

II.

In this position, all illumination lights and work lights

are turned "ON."

FG000024

CAUTION!

Figure 15

Do not leave instrument panel or work lights "ON"

when the engine is not running. Leaving lights "ON"

with the engine shut down will discharge batteries.

Operating Controls

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2-14

9. Breaker / Boost / Shear Selector

Switch

I

O

This switch is used to either select the breaker, power

II

boost, or shear.

O. In this position, a hydraulic pressure rise will be

activated when pressing the button on the right-hand

work lever (joystick).

I.

In this position, shear is activated.

FG000025

II.

In this position, breaker is activated.

Figure 16

WARNING!

Before using any attachment in a work application, be

sure to check its functional control. Make sure that the

desired movement or action is being activated by the

control. e.g. opening/closing, CW/CCW, crowd/dump,

etc.

10. Cabin Work Light Switch (Optional)

This switch is used to control the cabin work lights, if unit is

O

equipped with them.

I

II

O. In this position, all cabin work lights are turned "OFF."

I.

In this position, the front cabin work lights on the front

top of cabin will turn "ON."

II.

In this position, the front cabin work lights on the front

top of cabin and rear cabin work lights on rear top of

cabin will turn "ON."

FG000026

Figure 17

11. Warning Light Switch (Optional)

If unit is equipped with a warning light, push this switch to

O

activate it.

I

O. In this position, the warning light is turned "OFF."

I.

In this position, the warning light turns "ON" and will

start flashing.

FG000027

Figure 18

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2-15

12. Lower Wiper Switch (Optional)

This switch is used to control the lower front window wiper.

O

O. In this position, lower windshield wiper is "OFF."

I

I.

In this position, lower windshield wiper runs at a

constant speed.

NOTE: Operating wiper without washer fluid or when

there is sand or dirt present will damage the

window and wiper.

FG000028

Figure 19

13. Heater and Air Conditioner Control

Panel

This panel is used to control air conditioner and heater in

A/C

OUTSIDE

operator's compartment. Refer to

“Heater and Air

AUTO

AUTO

MAX

A/C

Conditioner Control Panel” on page 2-51 for more details.

TEMP

OFF

SEL

MODE

FG000029

Figure 20

14. Wiper Switch Panel

This panel is only for operation of the upper windshield

wiper. When the wiper stops running, it moves to right side

of the cabin, resting in its support.

NOTE: When the front window is lifted, the wiper motor

will not operate.

FG000308

Figure 21

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2-16

Constant Speed Button

Pressing the button turns "ON" the windshield wiper. An

indicator light above the button will turn "ON" indicating

that the wiper is "ON." The wiper will run at a constant

speed.

Pressing the button again, turns "OFF" the windshield

wiper.

FG000241

Figure 22

Intermittent Speed Button

Pressing button once (first time):

Windshield wiper runs approximately on a three

second intermittent cycle. The left side indicator light

will turn "ON."

Pressing button again (second time):

Windshield wiper runs approximately on a six second

intermittent cycle. The right side indicator light will

turn "ON."

FG000242

Pressing button again (third time):

Figure 23

Turns "OFF" the windshield wiper. Both indicator

lights will be turned "OFF."

Windshield Washer Button

Pressing the washer button will spray windshield washer

fluid onto the windshield. Use only the proper windshield

washer fluid in the system.

NOTE: Do not operate the windshield washer without

any fluid. If operate without any fluid, the

washer motor may be damaged. Check level in

washer tank, and add fluid as required.

NOTE: Using soapy water or synthetic detergent

instead of window cleaning fluid, may damage

FG000243

the wiper blade or painted surfaces. Use

Figure 24

standard window cleaning fluid: SSK703

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2-17

15. Cigarette Lighter

Push the lighter all the way into the socket and release

your hand. After pushing it in, it will be ejected when it is

heated. If it does not eject after a short time, pull it out and

have it serviced.

NOTE: This cigarette lighter is for

24V only. Never

connect a 12V electrical device to the lighter.

FG000030

Figure 25

16. Power Socket for 12 Volt

This is a power socket for only 12V DC devices.

This socket can be used for charging a cellular phone or

powering a small 12V DC electrical device.

Open the cap when using it.

12 V

NOTE: This socket is designed for small electrical

capacity devices. Do not use this socket for

large electrical capacity devices. Thus, damage

can be avoided.

HAAE1990

Figure 26

17. Travel/Swing Alarm Switch (Optional)

If unit is equipped with a travel/swing alarm buzzer, push

O

this switch to active it, whenever swinging or traveling.

I

O. In this position, the travel/swing alarm system is

II

turned "OFF."

I.

In this position, the travel alarm will only sound, when

the machine is moving.

II.

In this position, the travel/swing alarm will sound

while swinging and traveling, if equipped with a swing

FG000031

alarm device.

Figure 27

NOTE: If machine is only equipped with a travel

alarm device, the alarm will not sound

when swinging although the switch is in

the "II" position.

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2-18

18. Overload Warning Switch (Optional)

If unit is equipped with an overload warning device, push

O

this switch to activate it.

O. In this position, the overload warning device is turned

I

"OFF."

I.

In this position, when a load is lifted that reaches the

machine safe lifting limit, a warning light on the

instrument panel will turn "ON" and a warning buzzer

will sound.

FG000032

Figure 28

WARNING!

To prevent injury, do not exceed the rated load

capacity of the machine. If the machine is not on level

ground, load capacities will vary. There may be local

government regulations about the use of excavators

for lifting objects.

Please observe these regulations.

19. Fuel Heater Switch (Optional)

This switch is used to activate the fuel heater system.

O

When the switch is activated, the fuel is warmed,

depending upon the temperature of the fuel.

I

NOTE: If the fuel temperature is above 5°C (41°F),

heating system is not activated.

O. In this position, the fuel heater system is turned

"OFF."

I.

In this position, the fuel heater system is turned "ON."

FG000033

Figure 29

NOTE: The starter switch must be "ON."

20. Seat Warmer Switch (Optional)

If the seat is equipped with the optional seat warmer, push

O

this switch to activate it.

I

When the seat is warmed, the warmer is automatically

turned "OFF."

O. In this position, the seat warmer is turned "OFF."

I.

In this position, the seat warmer is turned "ON."

NOTE: The starter switch must be "ON" with the engine

FG000034

running, for the heater to operate.

Figure 30

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2-19

21. Horn Button (Left-hand Work Lever)

Press the lower button on the top of the left-hand work

lever (joystick) to sound horn.

NOTE: The starter switch must be "ON."

FG002084

Figure 31

22. Rotating Buttons

For a machine equipped with an attachment that rotates,

press the upper two buttons on the top of the left-hand

work lever (joystick) to rotate the attachment clockwise or

counterclockwise. Left button is for counterclockwise and

the right one is for clockwise.

WARNING!

FG000382

Figure 32

Before using any attachment in a work application, be

sure to check its functional control. Make sure that the

desired movement or action is being activated by the

control. e.g. opening/closing, CW/CCW, crowd/dump,

etc.

23. Booster Button (Right-hand Work

Lever)

Press the lower button on the top of the right-hand work

lever (joystick) to boost the hydraulic pressure. Refer to the

“Boost Mode” on page 3-22.

NOTE: This button works with the breaker/boost/shear

selector switch. See “9. Breaker / Boost / Shear

Selector Switch” on page 2-15.

FG000036

Figure 33

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2-20

24. Shear Buttons

For a machine equipped with shear, press the two upper

buttons on the top of the right-hand work lever (joystick) to

open or close the shear. Left button is for closing (crowd),

right button is for opening (Dump).

NOTE: These buttons work with the breaker/boost/

shear selector switch. See “9. Breaker / Boost /

Shear Selector Switch” on page 2-15.

FG000383

Figure 34

WARNING!

Before using any attachment in a work application, be

sure to check its functional control. Make sure that the

desired movement or action is being activated by the

control. e.g. opening/closing, CW/CCW, crowd/dump,

etc.

25. Instrument Panel

CHECK

See “Instrument Panel” on page 2-24.

02/05 [MO] 11:30

E

F

C

H

C

H

E/G SPEED

1700

RPM

POWER

AUTO

1

2

3

4

ESC

5

6

7

8

FG000037

Figure 35

26. Safety Lever

See “Safety Lever” on page 3-13.

FG000038

Figure 36

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2-21

27. Photo Sensor

The photo sensor detects the radiant energy of the sun.

In auto mode the air conditioner will automatically adjust

the air temperature based on to the detected radiant

energy.

FG000399

Figure 37

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2-22

INSTRUMENT PANEL

7

8

9

10

11

12

5

CHECK

02/05 [MO] 11:30

1

3

E

F

4

2

C

H

C

H

E/G SPEED

1700

RPM

17

6

15

19

13

POWER

AUTO

1

2

3

4

ESC

20

14

5

6

7

8

16

18

FG000039

Figure 38

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2-24

1. Fuel Gauge

Shows remaining fuel quantity in tank.

BLUE ZONE (

) - Indicates a normal fuel quantity.

RED ZONE (

) - Indicates that the fuel level is low.

If the gauge pointer moves into the red zone, the fuel level

symbol will turn "ON," and be display in the screen. Stop

E

F

operation and immediately and add fuel.

FG000040

NOTE: See “Abnormal State Warning Symbols” on

page 2-33, for location of this warning symbol

Figure 39

and others.

Check the fuel level on firm, level ground.

2.

Engine Coolant Temperature Gauge

The colored bands indicate the temperature of the engine

coolant.

WHITE ZONE (

) - Indicates temperature is lower than

the normal operating temperature.

BLUE ZONE (

)

- Indicates temperature is within the

C

H

normal operating range.

RED ZONE (

) - Indicates temperature is too high.

FG000041

Figure 40

During operation, the pointer must be in the blue zone.

If the gauge pointer moves into the red zone, the engine

coolant temperature warning light will turn "ON," a warning

buzzer will sound, and the engine speed will be

automatically reduced. Allow the engine to run at low idle

speed until the temperature gauge registers in the blue

zone again. When the blue zone is reached, allow the

engine to idle for an additional three - five minutes before

shutting down the engine. If not allowed to idle, heat surge

may develop which will damage the engine. Allowing the

engine to idle will dissipate heat. Check the coolant level,

look for a loose fan belt, inspect for debris around radiator,

and so on.

When the temperature reaches the normal range, the

engine speed will automatically recover.

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2-26

3. Hydraulic Oil Temperature Gauge

The colored bands indicate the temperature of the

hydraulic oil

WHITE ZONE (

) - Indicates temperature is lower than

the normal operating temperature.

BLUE ZONE (

)

- Indicates temperature is within the

C

H

normal operating range.

RED ZONE (

) - Indicates temperature is too high.

FG000042

Figure 41

During operation, the pointer must be in the blue zone.

If the gauge pointer moves into the red zone, the hydraulic

oil temperature symbol will turn "ON," and be display in the

screen. Allow the engine to run at low idle speed until the

temperature gauge registers in the blue zone again.

NOTE: See “Abnormal State Warning Symbols” on

page 2-33, for location of this warning symbol

and others.

4. Multifunction Gauge and Graphic

02/05 [MO] 11:30

Information Area

See “Multifunction Gauge and Graphic Information” on

page 2-31. This section will have a more in-depth

E

F

explanation of the display area.

C

H

C

H

E/G SPEED 1700 RPM

FG000043

Figure 42

5. Digital Clock

A digital clock, shows the current time. The displayed

contents are as follows.

Display

Description

MM/DD [W] HH:mm

MM

Month

DD

Date

W

Day

HH

Hour

FG000044

mm

Minute

Figure 43

A (P)

AM (PM)

Refer to the “Setting Main Menu” on page 2-38 for time

setting.

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2-27

6. Hour Meter

The hour meter is used to indicate the total number of

running hours on the engine. The meter will flash every

four seconds when the engine is running to indicate that it

is functioning properly.

HAOA601L

Figure 44

7. Charge Warning Light

This indicator light will turn "ON" when the engine starter

switch is turned "ON," and should go "OFF" after the

engine starts. If it does not turn "OFF," shut the engine

down immediately and determine the cause of the

problem.

HAOA610L

Figure 45

8. Engine Oil Pressure Warning Light

This indicator light will turn "ON" when the engine starter

switch is turned "ON," and should go "OFF" after the

engine starts. For example, if the engine oil pressure

becomes too low, the light will turn "ON" and a warning

buzzer will sound. If this happens, shut the engine down

immediately and determine the cause of the problem. If

you continue to work when this light is "ON," it will result in

serious engine damage.

HAOA620L

Figure 46

CAUTION!

If you continue to work when this light is "ON," it will

result in serious engine damage.

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2-28

9.

Engine Coolant Temperature Warning

Light

If engine coolant overheats, this light will turn "ON," an

alarm will sound, and the engine speed will be

automatically reduced, until coolant temperature drops. Do

not turn engine "OFF" because this will cause coolant

temperature to rise and may cause engine to siege due to

heat surge.

NOTE: Check the engine coolant temperature gauge. If

HAOD350L

the gauge pointer moves into the red zone, the

Figure 47

engine coolant temperature warning light will

turn "ON," a warning buzzer will sound, and the

engine speed will be automatically reduced.

Allow the engine to run at low idle speed until

the temperature gauge registers in the blue

zone again. When the blue zone is reached,

allow the engine to idle for an additional three -

five minutes before shutting down the engine. If

not allowed to idle, heat surge may develop

which will damage the engine. Allowing the

engine to idle will dissipate heat. Check the

coolant level, look for a loose fan belt, inspect

for debris around radiator, and so on.

When the temperature reaches the normal

range, the engine speed will automatically

recover.

10. Engine Check Warning Light

This indicator light will turn "ON," when the engine needs to

be check.

NOTE: If this light turns "ON" stop the machine and

repair the cause of the fault.

CHECK

FG000045

Figure 48

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2-29

11. Preheating Indicator Light

In cold weather this light indicates that the engine preheat

function is operating.

When this indicator light turns "OFF," it means that the

engine preheat cycle has been completed.

HAAE2000

Figure 49

12. Work Light Indicator Light

The indicator light indicates that the work lights are turned

"ON."

HB4O2003

Figure 50

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2-30

MULTIFUNCTION GAUGE AND

GRAPHIC INFORMATION

When the engine starter switch is turned to the "I" (ON) position,

a LOGO will appear on the display screen for about two

02/05 [MO] 11:30

seconds.

When the LOGO disappears, the multifunction gauge and

graphic information screen will appear.

E

F

The engine rpm is normally displayed at the bottom of the

screen when the starter switch is first turned "ON." Each time the

C

H

C

H

display selector button (19, Figure 38) is pressed, the digital

readout changes in the following sequence; Engine speed

E/G SPEED 1700 RPM

(RPM) -> Battery voltage (VOLT) -> Front pump pressure (BAR)

FG000043

-> Rear pump pressure (BAR).

Figure 51

NOTE: See Figure 54 thru Figure 57.

A digital clock is located at the top of the display.

By using a combination of the mode selector buttons,

information for filters and oils can also be displayed.

The display can also be set for the desired language.

Refer to the “Setting Main Menu” on page 2-38 for the language

selection and information display sequences.

Communication Indicator

Indicates the condition of communication between main

controller and instrument panel.

1.

Normal Condition:

The symbol will sequentially move like lightening.

NOTE: See Figure 54 thru Figure 57.

2.

Abnormal Condition:

If the symbol is not displayed, it means there is a

FG000047

communication error.

Figure 52

NOTE: See Figure 53.

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2-31

Front Hydraulic Pump Pressure

The front pump pressure is numerically displayed.

NOTE: This pump is closest to engine flywheel housing

or is the upper one of hydraulic pump.

FRONT PUMP 320 BAR

It displays the reading in BARs.

FG000051

Figure 56

Rear Hydraulic Pump Pressure

The rear pump pressure is numerically displayed.

NOTE: This pump is the farthest from engine flywheel

housing or is the lower one of hydraulic pump.

REAR PUMP 313 BAR

It displays the reading in BARs.

FG000052

Figure 57

Abnormal State Warning Symbols

6

5

4

3

2

1

1.

Hydraulic Oil Overheating Warning

2.

Pilot Filter Clogged Warning

3.

Fuel Shortage Warning

E

F

4.

Return Filter Clogged Warning

5.

Air Cleaner Clogged Warning

C

H

C

H

6.

Overload Warning (Optional)

E/G SPEED 1700 RPM

FG001088

Figure 58

Operating Controls

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2-33

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