Doosan DL250. Operation and Maintenance Manual (2006)

7. Headlight Switch

O. In this position, this switch turns "OFF" clearance,

tail, instrument panel, switch and headlights.

NOTE: If the switch is not in this position with the

engine not running, the pilot buzzer will

sound to warn the operator that the

batteries are being discharged.

In this position, this switch turns "ON" clearance,

tail, instrument panel and switch lights.

FG003976

II.

In this position, this switch turns "ON" clearance,

Figure 62

tail, instrument panel, and headlights.

CAUTION!

Do not leave clearance, tail, instrument panel or

headlights "ON" when the engine is not running.

Leaving lights "ON" with the engine shut down will

discharge batteries.

8. Front Work Light Switch

O. In this position, this switch turns "OFF" work lights

mounted on the front top of cabin.

In this position, this switch turns "ON" work lights

mounted on the front top of cabin.

CAUTION!

HAOQ071L

Do not turn "ON" the work light when traveling on

Figure 63

public roads.

Operating Controls

OP000434

2-31

9. Rear Work Light Switch

O. In this position, this switch turns "OFF" work lights

mounted on the rear top of cabin and the sides of

radiator.

In this position, this switch turns "ON" work lights

mounted on the sides of radiator.

II.

In this position, this switch turns "ON" work lights

mounted on the rear top of cabin and the top of

the sides of radiator.

AHO0850L

Figure 64

CAUTION!

Do not turn "ON" the work light when traveling on

public roads.

10. Rear Wiper Switch

O. In this position, this switch turns "OFF" windshield

wiper mounted on rear windshield of operator's

cabin.

In this position, windshield washer fluid sprays

onto the rear windshield while running the rear

wiper. When released, the switch returns to the

"O" (OFF) position.

II.

In this position, this switch turns "ON" windshield

HAOD421L

wiper mounted on rear windshield of operator's

Figure 65

cabin.

CAUTION!

The washer pump can be damaged if it is activated

while there is no fluid in the tank.

The fluid level must be checked regularly and

refilled as necessary.

Using soap or other solvents instead of the

recommended washer may damage the wiper

blades and the paint finish. Only use the

recommended washer fluid or equivalent.

Operating Controls

OP000434

2-32

11. Pilot Cutoff Switch

O. In this position the operator cannot operate the

pilot control valve lever (joystick).

In this position the operator can fully control the

movement of the pilot control valve lever

(joystick).

CAUTION!

HBOI110L

Figure 66

When driving or parking, the pilot cutoff switch

must be changed to "O" (OFF) position.

12. Parking Brake switch

O. In this position, the parking brake is "RELEASED"

and the indicator light on the front instrument

panel turns "OFF."

In this position, the parking brake is "APPLIED"

and the indicator light on the front instrument

panel comes "ON." This brake can also be used

as an emergency brake.

HA0O2019

Figure 67

WARNING!

Set the parking brake switch in the "I" (APPLIED)

position before leaving the loader. Make sure to

"APPLY" the parking brake switch before trying to

start the loader.

CAUTION!

Do not use the parking brake to stop the loader,

except in an emergency; otherwise, it might cause

premature wear or damage of the brake.

FG006055

Figure 68

Operating Controls

OP000434

2-33

13. Transmission Cutoff Switch

This switch changes the mode of the brake pedal from

"INCHING" to "NO INCHING."

O. In this position, the "NO INCHING" mode is

selected.

In the "NO INCHING" mode, the power

transmission line is still connected when the brake

pedal is pressed, thus, making it easier to start off

on an incline. This mode is also suitable for

HA3O2018

traveling, because both dynamic engine braking

Figure 69

and the service brake can be used when

descending grades.

In this position, the "INCHING" mode is selected.

In this mode, the transmission is put in

"NEUTRAL" by pressing the left brake pedal. This

mode is suitable for a load handling operation.

When the accelerator pedal is pressed in this

setting, more power is concentrated on the load

handling system, to quicken the boom lifting

speed.

NOTE:

1) Transmission "CUTOFF" function dose not

operate at 3rd and 4th gear for protection of

transmission.

2) Despite transmission "CUTOFF" switch, the

right brake pedal has braking function only.

WARNING!

When pressing brake pedal while traveling or

working on a slope, set this switch to "O" for

dynamic engine braking.

14. Mirror Heating Switch

This switch is used to operate a heater installed in the

mirror. Press the switch and the mirror heater will

remove frost and ice from mirror.

O. "OFF" position.

"ON" position.

FG004187

Figure 70

Operating Controls

OP000434

2-34

15. Reverse Fan Switch

This switch causes the radiator cooling fan to rotate in

the reverse direction. The function of reversing the

direction of the radiator cooling fan is effective in

cleaning the radiator.

O. "OFF" position.

"ON" position.

Activate the switch for reverse rotation in the following

FG004188

order;

Figure 71

A. Turn the starter switch "O" (OFF) → "I" (ON) and

then turn the of the cooling fan reverse rotation

switch "O"

(OFF)

→ "I" (ON) and start the

engine.

B. For reverse operation, the cooling fan reverse

rotation indicator light turns "ON" the same time.

C. To return to forward rotation, shut down engine,

change the position of the reverse switch "ON" →

"OFF," and start the engine again.

WARNING!

Never travel or work in the reverse fan rotation

mode. This may cause damage to the cooling

system. Make sure that this switch is in the "O"

(OFF) position before starting the engine and

operating the machine.

16. Engine Diagnostic Switch

If the engine warning light turns "ON" or "blinks," when

the engine is running, it means a fault code has been

recorded. When this occurs, the engine diagnostic

switch allows the operator to view the fault codes. The

active fault code is started after this switch turns "ON"

"OFF," if during the output of the fault code this switch

turns "ON" "OFF" again, the output of the current fault

code is interrupted and the next fault code is displayed.

Each depression of the diagnostic switch causes the

AQO0120L

output of a fault code. If a fault code is displayed,

Figure 72

contact your authorized dealer for repair. To know the

fault code information, refer to the engine control

system of shop manual.

Operating Controls

OP000434

2-35

17. Boom Float Switch (Option)

Boom float allows the bucket to follow the contour of

the ground/working surface. When pressing this switch

and setting work lever to float position, the lever is

locked

(detent) and boom is lowered. When boom is

matched to setting position, the lever lock is released,

and lever is returned to "NEUTRAL" position. Boom

lowering is stopped.

O. In this position, this switch turns "OFF" boom

float.

HAOA751L

Figure 73

In this position, this switch turns "ON" boom float.

18. Load Isolation System (LIS) Switch

(Option)

This switch enables the boom cylinder to absorb shock

loading of the machine during traveling and working. It

improves dynamic stability, machine life, and

comfortability. It is most effective when traveling with

load in the bucket.

O. In this position, the LIS turned "OFF."

FG004256

In this position, the LIS turned "ON" at all travel

speeds.

Figure 74

II.

In this position, the LIS will "AUTOMATICALLY

TURN ON" if the forward travel speed exceed 6

km/h (3.7 MPH) or reverse travel speed exceed 4

km/h (2.5 MPH). LIS will automatically turn "OFF"

if the forward speed is less than

4 km/h

(2.5

MPH) or if reverse travel speed is less than

km/h (1.2 MPH).

19. Not Used

20. Fuel Heater Switch (Option)

This switch is used to operate the fuel heater. When

the switch is pressed, the fuel heater starts to heat

fuel. If the fuel temperature is 5°C and higher, the fuel

heater does not operate, even if switch in "I "

(ON)

position

O. In this position, this switch turns "OFF" fuel

heater.

In this position, this switch turns "ON" fuel heater.

FG004190

Figure 75

Operating Controls

OP000434

2-36

21. Emergency Steering Test Switch and

Automatic Test (Option)

Emergency Steering Test Switch

This switch is used to test whether the emergency

steering system is properly functioning.

The system must be tested during the start-up

procedure to ensure that the system is properly

functioning.

AJO0010L

Test emergency steering system using the following

Figure 76

procedure:

A. Turn starter switch to "I" (ON) position.

NOTE: Do not start engine.

B. Press emergency steering test switch and turn

steering wheel at the same time. If system is

functioning properly the unit should steer. The

emergency steering indicator light should turn

"ON."

NOTE: If unit does not steer, do not operate unit

until problem is corrected.

C. Release switch. Switch will automatically return to

"O" (OFF) position.

Automatic Test

This is a system check that tests the hydraulic oil

pressure in the emergency steering system lines. With

starter switch turn to "I"

(ON) position, an emergency

warning light on the front gauge panel will turn "ON"

for about three seconds.

WARNING!

Do not press this switch continuously.

Continuously pressing switch will cause heavy

battery discharge. The emergency steering DC

motor has a high consumption of power.

Operating Controls

OP000434

2-37

22. Rotating Beacon Light Switch

(Option)

O. In this position, this switch turns "OFF" rotating

beacon light.

In this position, this switch turns "ON" rotating

beacon light.

HAOA750L

Figure 77

23. 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 78

24. Cup Holder

Place to put beverages.

25. F/R (Forward/Reverse) Selector

Switch (Option)

O. In this position, the F/R control switch is "OFF"

In this position, the F/R control switch is activated.

When released the switch returns to the "O"

(OFF) position, but the system is still activated.

When this switch is depressed again, F/R control

switch is "OFF"

NOTE:

1) When activating system, the transmission

FG008125

lever and F/R control switch must be in

Figure 79

"NEUTRAL."

2) If the transmission lever is actuated (moved),

the gearshift functions of the F/R control switch

are deactivated, and forward/reverse travel is

again controlled by the transmission lever.

Operating Controls

OP000434

2-38

26. F/R (Forward/Reverse) Control Switch

(Option)

To be able to use the forward/reverse function, the F/R

selector switch must first be depressed. When the

switch is activated, the F/R selector indicator light will

be turned "ON" in the instrument panel.

O. In this position, the machine is in "NEUTRAL"

In this position, the machine travels "FORWARD"

BSO0410L

II.

In this position, the machine travels "REVERSE"

Figure 80

Operating Controls

OP000434

2-39

1. Cabin Light

Located in the middle of front cabin, it illuminates the

cabin for night work. Light turns on when the switch is

in the "ON" or

"O" position but off in the "OFF"

position. Cabin light may be turned "ON" and "OFF"

irrespective of the position of the starter switch.

FG004192

Figure 82

2. Stereo / CD Player (Option)

For operation of stereo see

“Stereo

/ CD Player

(Optional)” on page 2-50.

PROGRAM

AST

SOUND

AM/FM

SCAN

TUNE

FG004057

Figure 83

3. Heater and Air Conditioner Control

Panel

For operation of heater and air conditioner see “Heater

and Air Conditioner Operation” on page 2-45.

FG003955

Figure 84

Operating Controls

OP000434

2-42

4. Speakers

Emits sound generated by stereo.

HBOM350L

Figure 85

5. Storage Compartments

There are two storage compartments (1 and 2, Figure

86) located both sides behind of the operator's seat.

Keep the operation manual and other documents in this

compartment.

FG003889

Figure 86

6. Windshield Washer Tank

Contains windshield washer fluid. It is located behind

the operator's seat. (3, Figure 86)

7. Electrical Box

Contains relays and electric components. It is located

on left side of cabin.

FG003956

Figure 87

Operating Controls

OP000434

2-43

HEATER AND AIR

CONDITIONER OPERATION

Location of Controls and Vents

FG006506

Figure 89

Reference

Description

Number

Operation Panel

Foot Nozzle

Front Nozzle (Air Conditioner)

Rear Nozzle

Front Nozzle (Defroster)

The heater and air conditioner are combined into one unit to

the right side of the operator's seat. If necessary, the

operator can control interior cabin temperature using the

operation panel.

Operating Controls

OP000434

2-45

Operation Panel

FG003966

Figure 90

Reference

Description

Number

Fan and Air Conditioner Switch

Selector Switch for Wind

Direction

Blower Fan Switches

Ventilation Selector Switch

Temperature Control Switch

When a switch is selected, the LED above that switch will

turn "ON" and give an activation sound.

When the light switch is turned "ON," the panel LED's will

turn "ON."

1. Fan and Air Conditioner Switch

A. "OFF" Switch

- Turns "OFF" the heater and air

conditioner unit.

B. "A/C" Switch

- Turns "ON" the air conditioner

when one of the blower switches is activated.

HAOC930L

Figure 91

Operating Controls

OP000434

2-46

2. Blower Fan Switches

These switches are used to control the speed of the

blower fan.

A. "LO" Switch - Used for low blower speed.

B. "MID" Switch

- Used for intermediate blower

speed.

C. "HI" Switch - Used for high blower speed.

NOTE: If you do not select a blower speed the heater

HAOC940L

and air conditioner will not work.

Figure 92

3. Temperature Control Switch

The temperature control consists of 24 stages. An LED

is turned "ON" for every three stages. Whenever

pushing it, it changes in stages. Pushing it

continuously, it changes continuously.

A. "COOL" Switch - Lowers the temperature.

B. "WARM" Switch - Raises the temperature.

LED COLOR STATUS

HAOA860I

Green LED - Air conditioner. Full green, maximum

Figure 93

operation of air conditioner.

Red LED - Heater. Full red, maximum operation

of heater.

4. Selector Switch for Wind Direction

A. Used to direct air flow to upper portion of

operator's cabin.

FG006507

Figure 94

Operating Controls

OP000434

2-47

Memory Function of Used Mode

The air conditioner panel has a memory function. When the

starter switch is turned "OFF" the settings for the panel will

be stored. When the excavator is started, the last setting will

be used.

Additional Operating Instruction

A proper interior temperature in summer is 5 - 6° C (10 -

12°F) less than the outdoor temperature.

Operate the air conditioner from twenty

- thirty minutes a

week to circulate the refrigerant in the system.

NOTE: The blower switch must be on "LO" speed.

NOTE: The outer air conditioner filter must be cleaned out

every 50 hours and replaced with a new one every

500 hours. The inner air conditioner filter must be

cleaned out every 500 hours and replaced with a new

one every 1,000 hours.

NOTE: In the event that the unit is being operated in a dusty

environment, the cleaning and replacement must be

performed more frequently.

If operating the air conditioner or heater for a long time,

operate the ventilation switch, and when smoking, vent the

air to the outside to prevent irritation to eyes.

Operating Controls

OP000434

2-49

STEREO / CD PLAYER

(OPTIONAL)

Before operating the stereo or CD player, read operation

manual enclosed with stereo or CD player.

Stereo

PROGRAM

AST

SOUND

AM/FM

SCAN

TUNE

FG000108

Figure 98

Reference

Description

Number

Power / Volume Control

Preset Station

Sound Mode Selector

Tape Ejection

Band Selection

Fast Forward / Rewind

Tuning Up / Down

Tape Loading Slot

Scan Function / Auto Store

LCD

Operating Controls

OP000434

2-50

SEAT ADJUSTMENT

WARNING!

Whenever operator or operating condition has changed,

check to see that seating position is suitable for the

condition at hand. Always fasten your seat belt while

operating vehicle. Adjust backrest so that the operator

can fully reach and operate pedals.

HAOB110L

Figure 100

1. Adjusting Seat Forward/Backward

Lever

Holding lever (3, Figure 101), raise it, while pushing or

pulling seat to desired position. Release lever once

desired position is reached. Adjustment range is

160 mm (6.3 in).

2 and 3. Adjusting Seat's Angle and

HBOI350L

Height Lever

Figure 101

Pulling left lever

(3, Figure 101) up allows rear part of

seat to be moved up or down. Pulling lever

(2) up

allows front part of seat to be moved up or down.

Adjust seat according to operator's size and work

conditions. Adjustment range is

60 mm (2.36 in) for

both front and rear.

4. Weight Adjustment Knob

Turning knob (4, Figure 101) to right makes suspension

harder. Turning knob to left makes suspension softer.

Adjust according to operator's weight by checking

weight indicator dial. Adjustment range is from 50 - 120

kg (110 - 265 lb).

5. Backrest Adjustment Lever

Pulling up right lever

(5, Figure

101) allows seat

backrest to be moved forward or backward.

Operating Controls

OP000434

2-52

6. Angle Adjustment of Armrest

Adjustment angle of left and right armrest

(6, Figure

102) is done by turning a dial in bottom of armrest.

When you adjust angle, manually raise armrest before

turning dial.

7. Headrest

Headrest

(7, Figure

102) can be adjusted forward/

HAOB130L

backward and up/down. Move it by holding both sides.

Figure 102

Recommendations for Limiting

Vibrations

Select the right machine, equipment and attachments

for a particular application.

Replace any damaged seat by a DOOSAN genuine

part. Keep the seat maintained and adjusted.

•

Adjust the seat and suspension for the weight

and size of the operator.

•

Inspect and maintain the suspension and

adjustment mechanisms of the seat regularly.

Check that the machine is properly maintained.

•

Tire pressure, brakes, steering, linkages, etc.

Steer, brake, accelerate, shift gears, move the

attachments and load the attachments smoothly.

Adjust the machine speed and travel path to reduce

the vibration level.

•

Slow down if it is necessary when passing rough

terrain.

•

Drive around obstacles and excessive rough

terrain conditions.

Keep the terrain on work sites where the machine is

working and traveling in good condition.

•

Remove any large rocks or obstacles.

•

Fill any ditches and holes.

•

Provide machines for and schedule time to

maintain the terrain conditions.

Travel over longer distance

(e.g. on public roads) at

adjusted (medium) speed.

•

Always adjust the speed for preventing bouncing.

Operating Controls

OP000434

2-53

SEAT BELT

WARNING!

Seat belt is for operator's safety and should always be

worn. Before driving machine, adjust seat to desired

position for maximum comfort and machine control,

then fasten seat belt. Seat belts must be worn across

pelvic region and adjusted snugly to lessen chance and

severity of injury in event of an accident. Never fasten a

seat belt across abdomen.

Under no circumstances should operator be standing in

cabin when operating wheel loader.

Do not adjust seat position while vehicle is moving

because a loss of control may result. Stop machine,

apply parking brake, and then adjust seat.

Always, check condition of seat belt and belt bracket

before fastening it. Do not use it with twists in it.

Replace belt or bracket if damaged or worn.

Seat Belt Locking and Unlocking

Insert belt end

(1, Figure

103) into buckle

(2). Pull belt to

check that belt end is locked into buckle.

Adjust belt length so that it comfortably tight against

operator's pelvic region (hipbone).

HAOB140L

Figure 103

Press button (3, Figure 104) in center of buckle (2) and pull

out belt (1) to unlock.

HAOB150L

Figure 104

Operating Controls

OP000434

2-54

DOOR SIDE LATCH

Door side latches

(1. LH, Figure

105) and

(2. RH,

Figure 106) are used to secured the doors (RH, LH) to

the side of the cabin when they are opened.

NOTE: Keep the door closed and locked when machine

is not in use.

FG003894

Figure 105

FG003895

Figure 106

The RH side door, which is emergency exit from the

cabin, can be opened in two positions.

Position 1. (ventilation position)

•

Open the window and secured it with the lock

bar. (A, Figure 107)

Position 2. (full opened position)

•

Open the window and push it to backward

FG003896

Figure 107

To release doors from both sides of the cabin. Pull the

handles

(Figure

108) in the direction of arrows. The

handles are located on both sides of the operator's

seat.

FG003897

Figure 108

Operating Controls

OP000434

2-55

FUSE BOX/RELAY/ENGINE

EMERGENCY STOP SWITCH

Fuse Boxes

There are two fuse boxes inside the cabin.

Fuse boxes are on the upper side of the electric box. A

usage diagram of fuses is shown inside of fuse box. Spare

fuses are mounted on the inside of fuse box cover (10A -

Qty. 1, 15A - Qty. 1, 20A - Qty. 1 and 30A - Qty. 1).

WARNING!

If any fuse is blown, turn "OFF" the starter switch and

shut off the power supply. Remedy the cause if needed

and replace the fuse with a new one.

FG003971

Figure 110

Fuse Box One

FUSE BOX (1)

FUSE BOX (2)

No.

Name

Capacity

Rear Wiper, Window Washer

10A

Parking Brake, Pilot Cut Off

10A

Rotating Beacon (Option)

10A

CCTV (Option)

10A

FG003972

Spare

10A

Figure 111

Cigar Lighter

10A

Turn Signal Light, Hazard Light,

10A

Indicate Light

Starter Switch, Hour Meter,

10A

Cabin Light

Air Conditioner, Heater

30A

Headlight

20A

Transmission

15A

Condenser Fan, Cooling Fan

15A

ECU (1)

15A

ECU (2)

15A

Operating Controls

OP000434

2-57

Fuse Box Two

No.

Name

Capacity

Gauge Panel

10A

Stop Light

10A

Auto-detent, LIS (Option)

10A

Electric Steering (Option)

10A

Emergency Steer (Option)

10A

Horn, Front Wiper

10A

Position Light (Left)

10A

Position Light (Right)

10A

Fuel Heater (Option)

30A

Work Light (Rear)

20A

Mirror Heater

15A

Work Light (Front)

15A

Stereo, Clock, 12V Socket

15A

Memory Backup, Pilot Buzzer

15A

Operating Controls

OP000434

2-58

Relays

The relays are in the electrical box on the left side in the

operator's cabin. If the problem is not solved after replacing

the fuse, check the function of the relay.

FG003973

Figure 112

FG003974

Figure 113

Circuit Breaker

A circuit breaker is next to the relay by the batteries at back

of unit under engine compartment hood. When a short

circuit

or an overload occurs, the circuit breaker

automatically cuts off current, thus preventing electrical wires

from burning.

FG003975

Figure 114

Operating Controls

OP000434

2-59

Fusible Link

A fusible link (Figure 115) is in the battery box.

If the engine does not crank, first check that the starter

switch is turned "ON" and that no power is available

(No

indicator lights will light.). Check that the "A" portion

(Figure

116) of the fusible link is not broken or burned through.

Replace the fusible link if damage and investigate cause.

FG003978

Figure 115

WARNING!

When changing the fusible link, replace the fusible link

with the same capacity part. Otherwise, a fire could

break out in the wiring harness and/or other

components of the circuit. Always use original DOOSAN

parts.

HAOB100L

Figure 116

Engine Emergency Stop Switch

If the engine does not shut down when using the starter

switch, it can be stopped by moving the engine emergency

stop switch to the "I" (Emergency Stop) position.

O. In this position, the engine emergency stop system is

"OFF"

In this position, "Emergency Stop" is selected the

engine will shut down

FG004340

NOTE: When released, the switch will return to "O"

(OFF) position

Figure 117

FG004341

Figure 118

Operating Controls

OP000434

2-60

OP000435

3Operation

WARNING!

Before operating any wheel loader, read and understand

"Operating Controls" section of this manual.

INSTRUMENT PANEL

CONTROL FUNCTIONS

Monitoring System

Monitoring system uses network circuits between control

system and sensors installed at various machine system

locations to monitor selected conditions. The monitoring

systems function is to continually inform the operator of

machine's condition. Displays and gauge readouts on

instrument panel provide information such as engine speed,

engine coolant temperature, transmission oil pressure, and

electrical charge status.

NEW MACHINE BREAK-IN

PROCEDURES

All wheel loaders are inspected and adjusted before leaving

the factory. However, it is required that the operator follow

these steps during initial break-in period. Failure to follow

these steps may result in damage to equipment or reduced

performance.

Make sure to check all fluid levels before starting and

every 8 - 10 operating hours.

Do all Daily maintenance and service checks.

For first 50 operational hours, as shown by hour meter

on control console, do not exceed

80% of maximum

rated engine speed.

At end of first

50 operational hours, drain engine oil.

Replace engine oil filter and engine oil.

Operation

OP000435

3-1

Set pilot cutoff switch to "O"

(LOCK) position. This will

"LOCK" pilot control valve lever (joystick).

HBOI111L

Figure 4

Set reverse fan switch to "O" (OFF) position. This will

prevent damage to the cooling system during normal

operation.

HAAH0040

Figure 5

Rotate starter key to "I"

(ON) position. All indicator

lights should turn "ON."

NOTE: If unit is equipped with and emergency steering

system. Test system before starting engine. If

system does not function properly, do not start

unit. Follow test procedure given with test

switch.

FG000084

Figure 6

Rotate starter key to "START" position. Starter motor

should crank immediately, and engine should start

within a few seconds.

FG000085

Figure 7

Operation

OP000435

3-3

Release starter key when engine starts. Key will return

to "I"

(ON) position.

IMPORTANT

If engine does not start after approximately fifteen

seconds of cranking, release Starter Key. Wait five

minutes for starter motor to cool down. Repeat

step 7.

FG003899

Figure 8

After engine starts, check all indicator lights and

gauges to be certain that all engine systems

(oil

pressure, oil temperature, coolant temperature, etc.) are

in normal operating range. If any engine system is not

normal, turn starter key to "OFF" position.

Instrument Panel Light or Gauge

Indicator Reading

Fuel Gauge

Engine Coolant Temperature Gauge

WHITE RANGE

Transmission Oil Temperature Gauge

Engine Oil Pressure Warning Light

Charging Warning Light

OFF

Brake Oil Pressure Warning Light

Parking Brake Light

NOTE: Parking brake indicator light turns "ON" or

"OFF" according to parking brake operation

regardless of engine starting.

10.

Perform “Hydraulic System Warm-up” on page 3-10.

11.

Check color of exhaust smoke:

•

No color or light blue - Engine is running in good

condition.

•

Black - Incomplete combustion. Check cause.

•

White or dark blue - Engine is burning engine oil.

Check cause.

12.

Check for usual engine vibration and noises. If any are

heard or felt, investigate cause.

Operation

OP000435

3-4

NOTE: If engine coolant temperature gauge shows red

while running, take the following action;

Discontinue work and allow engine to run at

"LOW IDLE." Open engine compartment cover

for good ventilation. Once engine temperature

gauge returns to the green zone, shut down

engine. After engine has cooled, check coolant

level, look for signs of leaks, clogged or dirty

radiator fins (radiator core), and fan belt tension.

Cold Weather Engine Start

Set parking brake switch to the "I" (APPLIED) position.

This will ensure that the parking brake is "APPLIED."

HA0O2019

Figure 9

Move all control levers to "NEUTRAL" position.

IMPORTANT

If transmission lever is not in "NEUTRAL" position,

engine will not start.

FG003979

Figure 10

Make sure transmission neutral lock is in the "N"

(NEUTRAL LOCK) position.

FG003980

Figure 11

Operation

OP000435

3-5

Set pilot cutoff switch to "O"

(LOCKED) position. This

will "LOCK" pilot control valve lever (joystick).

HBOI111L

Figure 12

Set reverse fan switch to "O" (OFF) position. This will

prevent damage to the cooling system during normal

operation.

HAAH0040

Figure 13

Turn starter switch to the "I" (ON) position (Figure 14).

When preheat cycle is completed, the preheat indicator

light

(1, Figure 15) will turn "OFF."

FG000084

Figure 14

FG004193

Figure 15

Operation

OP000435

3-6

Rotate starter key to "START" position. Starter motor

should crank immediately, and engine should start

within a few seconds.

FG000085

Figure 16

Release starter key when engine starts. Key will return

to "I"

(ON) position.

IMPORTANT

If engine does not start after approximately fifteen

seconds of cranking, release starter key. Wait five

minutes for starter motor to cool down. Repeat

step 7.

FG003899

Figure 17

After engine starts, check all indicator lights and

gauges to be certain that all engine systems

(oil

pressure, oil temperature, coolant temperature, etc.) are

in normal operating range. If any engine system is not

normal, turn starter key to "O" (OFF) position.

10. Perform

“Hydraulic System Warm-up - Cold Weather”

on page 3-10.

Operation

OP000435

3-7

Starting with Auxiliary Batteries

WARNING!

Wear safety glasses.

Never connect negative leads to positive terminals and

vice versa.

DO NOT connect auxiliary or booster battery ground

terminal directly to battery terminal. Locate and use a

ground point on machine frame.

Depleted batteries generate hydrogen gas. Electrical

sparks around or near batteries can cause an explosion.

Figure 18

Reference

Description

Number

Auxiliary Batteries

Ground Auxiliary Batteries to

Machine Frame

Depleted Batteries

If batteries are drained during starting procedures, you can

jump start engine using auxiliary or booster batteries

according to following procedures:

Connect positive jumper cable from auxiliary batteries

to depleted batteries (Figure 18).

Connect negative jumper cable from auxiliary batteries

to a ground point on machine frame. DO NOT

CONNECT DIRECTLY TO NEGATIVE BATTERY

TERMINAL.

Follow normal engine starting procedures.

After engine has started, remove negative jumper

cable, and then positive cable.

Operation

OP000435

3-8

Engine Shut Down

Move transmission lever to "NEUTRAL" position.

FG003979

Figure 19

Make sure transmission neutral lock is in the "N"

(NEUTRAL LOCK) position.

FG003980

Figure 20

Set parking brake switch to the "I" (APPLIED) position.

This will ensure that the parking brake is "APPLIED."

HA0O2019

Figure 21

Set bucket on ground.

Put pilot cutoff switch to "O"

(LOCK) position. This will

"LOCK" pilot control valve lever (joystick).

Allow engine to idle for one

- two minutes to cool

down.

HBOI111L

Figure 22

Operation

OP000435

3-9

Rotate starter key to "O" (OFF) position. Remove key.

FG003900

Figure 23

Hydraulic System Warm-up

Correct operating temperature of hydraulic oil is

50° -

80°C (120° - 175°F). Make sure to follow procedures

listed below for hydraulic fluid warm-up.

Run engine at idle (no load) for five minutes.

Run engine for approximately five minutes at middle of

speed range, without a load.

Cycle bucket until bucket cylinder bottoms out

(extended and retracted) without a load to circulate the

oil through the system. Do this for five minutes.

NOTE: Do not allow cylinders to pass hydraulic oil over

relief valve for more than twenty seconds at a

time.

Cycle boom, and bucket about five times without a

load to circulate oil through system.

Hydraulic System Warm-up - Cold

Weather

Follow Steps

1 through

3 in "Hydraulic System

Warm-up."

Do not operate machine at full speed until system has

fully warmed up.

If working speeds continue to be slow, repeat initial

hydraulic warm-up procedures again. If repeating

warm-up procedures does not improve working speeds,

continue to operate, but use extreme caution because

machine function may be erratic.

Operation

OP000435

3-10

MACHINE TRAVEL

WARNING!

If vehicle is moved while parking brake is engaged,

serious damage to parking brake disk will result.

Select a transmission gear that is appropriate for top

speed that will be traveled. Choosing a gear that is too

high will reduce acceleration and will unnecessarily heat

transmission converter oil.

Never place transmission in "NEUTRAL" when going

down a hill. Over speeding transmission can damage

transmission gears.

Never change direction of vehicle travel at high speed.

Serious damage to transmission will result.

Unlatch frame lock plate between front and rear frames

before traveling. Secure lock plate to rear frame (Figure

24).

FG006216

Figure 24

Set pilot cutoff switch to "I"

(UNLOCKED) position.

Raise bucket to a height of

20 -

30 cm (8 - 12 in)

above the ground. Tilt bucket completely back.

HBOI110L

Figure 25

Operation

OP000435

3-11

Set pilot cutoff switch to "O"

(LOCKED) position. This

will prevent boom and bucket from accidentally moving

during travel, as a result of accidentally touching pilot

control valve lever (joystick).

HBOI111L

Figure 26

Press brake pedal.

FG002183

Figure 27

Set transmission neutral lock is in the "D"

(DRIVE)

position.

FG003980

Figure 28

Set parking brake switch to the "O"

(RELEASE)

position. This will "RELEASE" the parking brake.

HAOP043L

Figure 29

Operation

OP000435

3-12

Place transmission lever in desired gear. Shift gears

one by one. Do not skip from 1st to 3rd, for example.

Shift transmission lever to "FORWARD" position.

FG003979

Figure 30

Release the brake pedal while slowly pressing the

accelerator pedal.

WARNING!

When traveling at high speed or on a steep hill, do

not make sharp changes in direction. This could

cause vehicle to overturn.

When traveling or changing direction, always look

FG003980

carefully to be certain that no one is in path of

Figure 31

vehicle.

Operation

OP000435

3-13

MACHINE SHUT DOWN

Ease off throttle and apply travel brakes.

FG002183

Figure 32

Put transmission lever in "NEUTRAL."

FG003979

Figure 33

Set transmission neutral lock is in the "N"

(NEUTRAL

LOCK) position.

CAUTION!

"LOCK" transmission lever. Whenever machine is

parked, "LOCK" transmission lever in "NEUTRAL"

to prevent accidental machine movement.

FG003980

Figure 34

Set parking brake switch to the "I" (APPLIED) position.

This will ensure that the parking brake is "APPLIED."

HA0O2019

Figure 35

Operation

OP000435

3-14

Set bucket on ground.

Set pilot cutoff switch to "O"

(LOCKED) position. This

will lock pilot control valve lever

(joystick).

Allow engine to idle for one

- two minutes to cool

down. Stopping a turbocharged engine without a cool

down period can seriously damage turbocharger.

HBOI111L

Figure 36

Rotate starter key to "O" (OFF) position. Remove key.

FG003900

Figure 37

If machine is parked on a slope, install wheel chocks

in front of and behind vehicle wheels.

WARNING!

Always secure machine with wheel chocks when

parked on a slope. Leaving machine in gear will

provide no braking effect because transmission

clutch is hydraulically operated. When engine is

turned "OFF," there is no hydraulic pressure in

2876A

transmission and clutch is not engaged.

Figure 38

Operation

OP000435

3-15

F/R (FORWARD/REVERSE)

TRAVEL CONTROL SYSTEM

(OPTION)

An optional F/R (Forward/Reverse) travel control system can

be installed as an option on the machine. With this system

installed, the operator's light-hand can remain on the

steering wheel during operation, and not have to manually

move the transmission lever between forward and reverse.

To activate system perform the following steps:

Place transmission lever in "NEUTRAL."

NOTE: Do not move the transmission lever out of

"NEUTRAL." If the lever is moved, the system

will be deactivated.

FG005290

Figure 39

Press F/R selector switch to the "I" position, and then

release. The switch will return to the "O" position, but

the system will be activated. When system is activated,

the F/R selector indicator light

(Figure

41) will be

turned "ON."

FG008125

Figure 40

km/h

x100r/min

CHECK

F/R

STOP

FG006059

Figure 41

Operation

OP000435

3-16

The F/R control switch is then used to control the

travel direction of the machine.

O. In this position, the machine is in "NEUTRAL."

In this position, the machine travels "FORWARD."

II.

In this

position,

the machine travels in

"REVERSE."

The F/R travel control system will stay activated until

one of two things happen.

A. The transmission lever is moved out of

BSO0410L

"NEUTRAL" into "FORWARD" or "REVERSE."

Figure 42

B. The starter switch is turned "OFF."

When the system is deactivated, the F/R selector

indicator light

(Figure 41) will be turned "OFF."

ADDITIONAL BRAKING

Machine hydraulic system can supply additional dynamic

braking force during travel. To accomplish this, move pilot

control valve lever

(joystick) to crowd position and hold it

there. Hydraulic pump will be driven to supply output at

maximum pressure

(relief pressure). Energy expended to

drive pump, will slow engine speed. Additional dynamic

braking, along with proper gear selection, can be used to

slow a vehicle that is being driven down an incline.

Operation

OP000435

3-17

BOOM RAISE KICK-OUT

Placing boom lever in "Boom Raise Detent" position will lock

boomt lever in raise boom position. Boom will raise until trip

plate

(1, Figure

43) makes contact with boom height limit

switch (2, Figure 43). When limit switch is tripped, boom will

stop raising and boom lever will automatically be returned to

"NEUTRAL" position. Trip plate can be adjusted to control

maximum height that boom can be raised.

FG006218

Figure 43

IMPORTANT

Trip plate

(1, Figure

43) must always be set to contact

limit switch

(2) before boom cylinders reach maximum

extension. Maximum extension causes pump to force

fluid over relief valve.

To raise boom to maximum height, past preset height, hold

boom and bucket lever in "Raise" or "Hold Raise" position

FG006220

until boom has reached maximum height. Then remove your

Figure 44

hand from lever. Lever will automatically return to

"NEUTRAL" position. This prevents hydraulic pump from

working against relief valve (maximum pressure).

BUCKET ANGLE INDICATOR

Upper left/right side of bucket includes a bracket that

indicates angle of bottom of bucket. Top of bracket is

parallel with bottom of bucket. If bottom of bucket is not

visible, top of bracket will be visible.

FG006222

Figure 45

Operation

OP000435

3-18

BOOM LOWER KICK-OUT

(OPTION)

Placing boom lever in "L" position will lock control lever in

lower boom position. Boom will move downward until trip

plate

(1, Figure

46) makes contact with boom lower limit

switch (2, Figure 46). When limit switch is tripped, boom will

stop lowering and boom lever will automatically be returned

to "NEUTRAL" position. Trip plate can be adjusted to control

maximum height that boom can be lowered.

FG006224

Figure 46

ADJUSTMENT OF BUCKET

POSITION SWITCH

When bucket lever is held in crowd detent position, after

bucket has been dumped, bucket will pivot toward crowd

position. Once full crowd position has been reached, bucket

lever will automatically return to "NEUTRAL" position. If

bucket is lowered after lever returns to "NEUTRAL," bucket

will automatically position itself to be in a preselected

digging position

(usually flat). To adjust bucket to desired

preselected digging position, perform the following steps.

Operate controls to place bucket on ground and in

desired digging position

(usually flat). Return bucket

lever to its "NEUTRAL" position.

FG006225

Figure 47

Shut down engine.

Loosen bolts (1, Figure 47) on bracket (2).

Position bracket

(2, Figure

47) so that end of arm (3)

is aligned with center of magnetic switch (4).

Tighten bolts (1, Figure 47).

Start engine. Raise boom, dump bucket, then move

bucket lever into crowd detent position. Now lower

boom and check to see that bucket has stopped at

required position. A small readjustment of bracket

(2,

Figure 47) may be necessary.

Operation

OP000435

3-19

TOWING MACHINE

When necessary to tow another vehicle, the tow rope must

be tied to the towing pin on the counterweight at the rear of

vehicle.

NOTE: The loader must be used for towing only in an

emergency.

WARNING!

Do not tow machine at a speed over 10 km/h (6 MPH)

FG001662

and do not tow machine farther than 10 km (6 mi). This

Figure 48

will prevent damage to machine transmission that would

result from lack of lubrication.

WARNING!

When towing another vehicle on a public road, take

necessary measures to let other vehicles and people

know that you are towing another vehicle. Use a flag,

rotating beacon light, or hazard light.

NOTE: There are several requirements you must abide by

when towing another vehicle. Learn the regulations

and rules about towing another vehicle and observe

them.

If the loader is being towed by another vehicle and the

engine will not start, remove the front and rear drive shafts;

otherwise the transmission will rotate without being properly

lubricated, causing seizure. Before removing them, apply the

parking brakes and block the wheels securely.

If the engine can be started and the steering wheel and

brakes function normally, have someone get on the loader

you are going to tow for steering it.

Before you tow a vehicle make sure you have checked the

following:

•

Check the weights of your loader and the vehicle

to be towed and make sure you loader has

sufficient braking capacity to stop the towed load.

•

Check if the vehicle to be towed can be braked

and steered. If not, do not allow anyone to ride

on the towed vehicle.

•

Check the tow rope or tow bar for damage and

make sure it has sufficient strength for the work.

•

When necessary to descend a grade, another

towing vehicle must be used in the rear to retard.

Operation

OP000435

3-20

When towing make sure you are doing the following:

•

Start slowly. A sudden start can lead to a broken

tow rope.

•

The tow line must be along the center line of

both your loader and the vehicle to be towed.

•

If you use any other towing device, refer to the

Instruction Manual supplied with the towing device.

•

If it is difficult to tow the loader, transport it by a

trailer truck to your nearest repair shop.

•

In addition to the above measures, release the

parking brake if the engine will not start or the

hydraulic pumps are defective.

IF ENGINE STALLS WHILE

TRAVELING

BRAKE SYSTEM: The brakes can be applied approximately

9 times by pressing the brake pedal due to the oil

pressure stored in the accumulator after engine is

turned "OFF" if the engine stalls while traveling, move

to an out of traffic area and park. Do not pump the

brake pedal at this time; otherwise the brake oil

pressure will be used up, thus causing the brakes to

fail.

Operation

OP000435

3-21

ALLOWABLE WATER DEPTH

The water depth is an important factor to take into

consideration when the loader is working in swampy areas.

Do not enter water whose depth exceeds the loader's

minimum ground clearance height or is high enough to wet

the bottom of the axle housing. As a rule of thumb, the

allowable water depth is about

400 mm. This means that

the loader should not be used in a river.

Observe the following conditions:

Check the water depth in advance when crossing

across a river.

Use the same precautions before crossing across a

swampy area.

Do not enter rivers whose river bed is steep or has a

rapid flow.

CAUTION!

Avoid use of the loader in salt water. Salt water

will cause the development of rust which will

shorten the life of the loader.

Operation

OP000435

3-22

OP000436

4Inspection, Maintenance

and Adjustment

BASIC PREVENTIVE

MAINTENANCE

For the machine to function satisfactorily and at lowest

possible cost, a thorough maintenance program is required.

This section of the manual describes the maintenance work

which the operator can carry out. If certain operations

require trained workshop personnel and special equipment,

this will be indicated.

The intervals recommended between checks, oil changes

and lubrication apply provided that the machine is used

under normal environmental and operating conditions. See

“Lubrication and Service Chart” on page 4-20

Arrival and Delivery Inspection

Before the machine leaves the factory, it is tested and

adjusted. The dealer must also, if the warranty is to apply,

carry out "Arrival and Delivery Inspections" according to

applicable form, which must be signed.

Delivery Instructions

Figure 1

When handing the machine over, the dealer must give the

buyer "Delivery Instructions" according to applicable form,

which must be signed, if the warranty is to apply.

Inspection, Maintenance and Adjustment

OP000436

4-1

Service Programmes

Warranty Inspection

Two Warranty Inspections must be carried out if the

warranties are to apply. The first within 100 operating hours

and the second at the latest at 1000 operating hours.

The carrying out of these inspections is a condition for the

warranty to apply.

Condition Test

A "Condition Test" is carried out at authorized dealer

workshops and provides information about the general

condition of the machine.

Inspection, Maintenance and Adjustment

OP000436

4-2

Service Points

22 1114

17 4 20

9 3

15 12 13 6 7

FG006219

Figure 2

Reference

Description

Number

Level Sight Gauge Hydraulic Oil

Filling Point, Engine

Breather Of Hydraulic Oil

Main Fuel Filter

Air Cleaner

Battery

Pre Cleaner

Return Oil Filter

Filling Point, Fuel

Filling Point, Coolant

Draining, Coolant

Filing Point, Washer Fluid

Pre Fuel Filter

Filling Point, Hydraulic Oil

Filling Point, Transmission

Ventilation Filters, Cabin

Draining, Hydraulic Oil

Battery

Pilot Filter

Alternator Belt

Oil Dipstick

Suction Strainer, Transmission

Oil Filter, Engine

Oil Filter, Transmission

Draining, Engine Oil

Inspection, Maintenance and Adjustment

OP000436

4-3

SAFETY WHEN SERVICING

This section deals with the safety rules which must be

followed when checking and servicing the machine.

DOOSAN disclaims all responsibility if other tools, lifting

devices or working methods are used other than those

described in this publication.

Further safety rules and information and warning texts are

given within the respective section.

NOTE: Lifting with a jack must only be carried out by trained

personnel.

WARNING!

If work has to be carried out on the machine before it

has cooled down, care must be observed with regard to

risk of burns from hot liquids and hot machine parts.

Inspection, Maintenance and Adjustment

OP000436

4-4

Service Position

BEFORE beginning service work the machine must be

parked on level ground and positioned as shown below.

AFTER completing the service, all guards must be installed

and all engine covers must be closed and locked.

FG006221

Figure 3

Reference

Description

Number

The bucket/attachment must be resting on the ground.

Apply the parking brake.

Shut down engine and take out the ignition key. (Does not apply when checking oil

level in transmission).

Carefully release the pressure in pressure lines and pressure vessels to avoid risks.

Attach a black and yellow "Warning Tag" to the steering wheel.

Connect the frame joint lock.

Block the wheels in a suitable way (with, for example, wedges).

Allow the machine to cool.

Inspection, Maintenance and Adjustment

OP000436

4-5

Before Service Read

•

Read the Operator's Manual and the decals/labels

and instructions found on the machine to obtain

the required knowledge and information about the

machine.

•

To be able to carry out the service work in a

correct way, it is important that the correct tools

and equipment be used. Replace or repair broken

tools and faulty equipment.

•

When lifting the machine, the frame joint must be

locked and the machine lifted at the eyes

intended for this purpose. See

“Summary of

Safety Precautions for Lifting” on page 5-2

Figure 4

•

Use a hard hat, safety glasses, protective shoes

and gloves and an approved respirator or other

protective articles when required.

•

Do not wear loose fitting clothing or jewelry.

•

Keep service surfaces and handholds clean from

oil, dirt and ice.

Figure 5

•

Use the stepping areas provided with antislip

protection to avoid the risk of slipping. Worn,

painted over, or loose protections must be

replaced. Remember that high-pressure water jets

when washing and spilled oil can cause the

protections to loosen. Do not direct the water jet

against the protections and wipe up spilled oil.

•

Make sure that there is sufficient ventilation when

starting the engine indoors.

•

Do not exceed the maximum permissible floor

FG001668

load.

Figure 6

•

Do not stand in front of or behind the machine

while the engine is running.

•

Use a ladder when changing light bulbs or

carrying out other service work high up on the

machine.

Inspection, Maintenance and Adjustment

OP000436

4-6

•

Use a long handled window scraper and brush or

a ladder when cleaning the outside of the

windows.

•

The installation of two-way radio, lever steering or

similar equipment must be carried out by a skilled

person, as faulty installation may cause

interference with the electronic components

controlling vital machine functions.

•

When carrying out service work below raised

lifting arm system, the lifting arms must first have

been secured (lifting arm support). In addition the

control lever lockout and the parking brake must

be applied.

•

Take care when changing oil in engine, hydraulic

system or transmission as the oil may be hot and

cause burns.

•

When emptying/draining oil or fuel, use a pump or

a hose and collect the liquids in a suitable vessel.

Spillage will damage the environment and may

cause a fire. Waste oil and other contaminating

liquids must be taken care of by a firm especially

authorized to carry out such work.

•

When operating in an area which is contaminated

or dangerous to one's health, the machine must

be especially equipped for this purpose. Special

local safety regulations apply within such areas

and also when servicing the machine.

•

Shut down engine before opening engine covers

etc. Make sure that no tools or other objects,

which may cause damage, have been forgotten in

or on the machine.

•

Check that the equipment you are using for lifting

or supporting parts of the machine, e.g. straps,

slings, ratchet blocks and ground support, can

safely cope with the strain they are exposed to

and meet applicable regulations.

•

Release the pressure in pressure vessels,

components and systems carefully and in the

prescribed way, so that the excess pressure is

released without risk.

•

When connecting hydraulic hoses, check that the

desired effect has been achieved, that is, check

that the hydraulic function operates in the

expected way.

•

Hoses, pipes and quick-connect couplings may be

pressurized even if the machine is stationary and

the engine turned "OFF." Such pipes and hoses

should therefore only be disconnected by trained

personnel.

•

When looking for leaks, use a piece of paper or

wood, not your hand.

Inspection, Maintenance and Adjustment

OP000436

4-7

Fire Prevention Measures

There is always a risk of fire. It is important that you use a

fire extinguisher that suits your machine and working

environment and that you learn how to use it. The fire

extinguisher must be placed behind the seat or externally in

a lockable box.

If the machine is to be provided with a handheld fire

extinguisher, it must be of the ABE type (ABC in the USA),

which means that it is possible to extinguish fires in both

FG003902

solid and liquid carbonaceous material and that the active

compound does not conduct electricity.

Figure 7

The effectiveness grade I means that the time the

extinguisher is effective must not be less that eight seconds,

grade II at least eleven seconds and grade III at least

fifteen seconds.

A handheld fire extinguisher ABE I (in the USA ABC type)

normally corresponds to a powder content of 4 kg

(8.8 lb)

(EN-grade 13A89BC), the EN 3-1995 standard, parts 1, 2, 4

and 5.

At the slightest sign of fire, and if the situation allows, take

the following steps:

Drive the machine away from the fire sensitive area

caused by the fire.

Lower the lifting arms to the ground.

Shut down engine by turning the ignition key to the "0"

(OFF) position.

Leave the cabin.

Turn off the battery disconnect switch.

Start putting out the fire and notify the fire brigade/

department if necessary.

It is forbidden to smoke or have an open flame near a

machine when filling with fuel or when the fuel system has

been opened and in contact with the surrounding air.

Diesel fuel oil is flammable and must not be used for

cleaning. Use an approved solvent and do not inhale the

fumes. Also bear in mind that certain solvents can cause

skin rashes and constitute a fire hazard.

Flammable starting must not be used due to the use of the

electric preheating in the induction air system.

Keep the place clean where the service is to be carried out.

Oil or water makes the floor slippery and is also dangerous

in connection with electrical equipment or electrically

powered tools. Oily or greasy clothes are a serious fire

hazard.

Check daily that the machine and the equipment, e.g.

underbody plates are free from dust and oil. In this way the

risk of fire is reduced and it is easier to detect faulty or

loose components.

Inspection, Maintenance and Adjustment

OP000436

4-8

NOTE: If a high-pressure jet is used for cleaning, take great

care as the insulation of electric leads can be

damaged even at a moderately high-pressure and

temperature. Protect electrical leads in an

appropriate way.

Take extra care when cleaning the machine after it has

been used in a fire sensitive environment, e.g. sawmill and

refuse dumps. Reduce the risk of spontaneous combustion

by installing for example silencer guard or high capacity

cyclone precleaner.

Sound absorbing material in the engine compartment must

be kept clean to minimize the fire hazard.

Fire prevention equipment which is installed on the machine

must be maintained and regarded as a complement to the

actions of the operator in case of a fire.

Check that fuel lines, hydraulic and brake hoses and

electrical cables have not been damaged by chafing or are

not in danger of being damaged because of incorrect

installation or clamping. This applies particularly to unfused

cables, which are red and marked R(B+) and routed:

•

between the batteries

•

between battery and starter motor

•

between alternator and starter motor

•

to the preheating element on the engine.

Electrical cables must not lie directly against oil or fuel lines.

The following applies for welding and grinding work:

•

A fire extinguisher must be kept near at hand.

•

The ventilation must be good when working

indoors.

•

Approved respirator must be used

•

The work surface must be cleaned.

•

Do not weld or grind on components which are

filled with flammable liquids, e.g. tanks and

hydraulic pipes. Exercise care with such work in

the proximity of these places.

Working on Painted Surfaces

When welding, grinding and gas cutting, the paint finish

must first be removed from an area with a radius of at least

10 cm (4 in) from the point where the work is to be carried

out. The reason for this is that paint when heated gives off

a great number of different substances which can cause

irritation and be very harmful to a person's health in case of

long or frequent exposure.

Inspection, Maintenance and Adjustment

OP000436

4-9

In addition to the health hazard, the weld will also be of an

inferior quality and strength, which in the future may cause

the weld to break. Therefore, never weld directly on a

painted surface.

Methods and Precautionary Measures

When Removing Paint:

Blasting

•

use respirator and eye protection

Paint remover or other chemicals

•

use a portable air extractor, respirator and

protective gloves

Grinding machine

•

use a portable air extractor, respirator and

protective gloves and eye protection

Floor Rubber

Observe extra great care when it is suspected that you may

have to handle floor rubber.

Certain seals which have to withstand high operating

temperatures (e.g. in engines, transmissions, axles, hydraulic

motors and pumps) may be made from floor rubber, which,

when exposed to high heat

(fire), forms hydrogen fluoride

and hydrofluoric acid. This acid is very corrosive and cannot

be rinsed or washed off from the skin. It causes very severe

burns which take a long time to heal.

It usually means that damaged tissue must be surgically

removed. Several hours may pass after contact with the

acid, before any symptoms appear and therefore one is not

given any immediate warning. The acid may remain on the

machine parts for several years after a fire.

If swelling, redness or a stinging feeling appears and one

suspects that the cause may be contact with heated floor

rubber, contact a medical doctor immediately. If a machine,

or part of a machine, has been exposed to fire or severe

heat, it must be handled by specially trained personnel. In

all handling of machines after a fire, thick rubber gloves and

effective goggles must be used.

The area around a part which has been very hot and which

may be made of floor rubber must be decontaminated by

thorough and ample washing with lime water (a solution or

suspension of calcium hydroxide, i.e. slaked lime in water).

After the work has been completed, gloves must be washed

in lime water and then discarded.

Inspection, Maintenance and Adjustment

OP000436

4-10

Rubber and Plastics

Polymer materials when heated, can form compounds which

are dangerous to health and environment and must therefore

never be burned when scrapped. Also take care when

handling machines which have been subjected to fire or

other extreme heat.

If gas cutting or welding is to be carried out near such

materials, the following safety instructions must be followed:

•

Protect the material from heat.

•

Use protective gloves, protective goggles and an

approved respirator.

Waste Hazardous to the Environment

Painted parts or parts made of plastic or rubber which are

to be scrapped must never be burnt, but must be taken

care of by an approved refuse handling plant.

Batteries, plastic objects and anything else which is

suspected of being dangerous to the environment must be

taken care of in an environmentally safe way.

Check List After Fire

When handling a machine which has been damaged by

fire or been exposed to intense heat, the following

protective measures must under all circumstances be

followed:

Use thick, gloves made of rubber and wear goggles which

are certain to protect your eyes.

Never touch burnt components with your bare hands, as

there is a risk that you may come into contact with melted

polymer materials. First wash thoroughly with plenty of lime

water

(a solution or suspension of calcium hydroxide, i.e.

slaked lime in water).

As a precaution, seals (O-rings and other oil seals) should

always be handled as if they were made of floor rubber.

Treat skin, which is suspected of having come into contact

with burnt floor rubber, with Hydrofluoric Acid Burn Jelly or

something similar. Seek medical advice. Symptom may not

appear until several hours afterwards.

Discard gloves, rags etc. which are suspected of having

come into contact with burnt floor rubber.

Inspection, Maintenance and Adjustment

OP000436

4-11

PREVENTIVE MAINTENANCE

Periodic checks and replacement of oil, grease, filters, etc.

must be made at specific intervals, to keep machine in good

working condition. The following pages describe items to be

checked, lubricants to be used, and time interval between

each check.

NOTE: Time interval between each service check may need

to be shortened if machine is operating in severe

atmospheric conditions. Machines working in

extremely hot or dusty conditions will require more

frequent service checks. Total hours of machine

operation are determined by hour meter that is on the

HAOA600L

front instrument panel.

Figure 8

Product Identification Number (P. I. N.)

Location

The PIN is stamped on the product identification plate

(Figure

9) on the right side of front frame above wheel

cover.

NOTE: Please make note of these numbers and their

locations. These will be required whenever warranty

or service work is requested. Keep this number on

file, in case the mathine is stolen.

7-11, Hwasu-dong, Dong-gu,

Incheon, Korea

K1011647B

FG008837

Figure 9

Inspection, Maintenance and Adjustment

OP000436

4-12

The number is also stamped in the rear frame on the left

side just below the cabin (Figure 10).

FG006230

Figure 10

Engine Serial Number

The engine name plate

(identification label) is attached to

engine headcover (Figure11 , 1). The engine serial number

is stamped on the right rear of the engine block, under

exhaust manifold (Figure11 , 2).

FG006234

Figure 11

Safety Precautions

Before performing any maintenance checks, move pilot

cutoff switch to "LOCKED" position. Place a Warning

Tag on controls so that no one begins to operate

machine while maintenance checks are being

performed.

Clean up all fuel spills. Fuel spills are hazardous,

especially around engine.

Inspect all fuel lines for leakage. Replace any lines,

fittings, O-rings, or filters that show signs of wear or

damage.

If a test procedure requires engine to be running, use

two people and keep all unnecessary personnel away

from machine.

Inspection, Maintenance and Adjustment

OP000436

4-13

TABLE OF RECOMMENDED

LUBRICANTS

IMPORTANT

Do not use lubricants other than those recommended,

without prior written approval from DOOSAN.

NOTE: Refer to the Maintenance Intervals Table for

application points.

LUBRICANT

HYDRAULIC OIL

ENGINE OIL

GEAR OIL

MANUFACTURER

GREASE

TOTAL

TOTAL EQUIVIS

TOTAL

RUBIA

TOTAL MULTIS

ZS 46 IV

TIR 7400 10W40

EP #2

TOTAL

RUBIA

POLYTRAFIC

10W40

TOTAL

RUBIA

8600 10W40

GS-CALTEX

RANDO HD CZ

SIGMA DX-1

MULTIFAK EP #2

10W40

CHEVRON

AW 32 (BELOW

DELO 400 15W40

DELO GREASE

0°C)

EP #2

(ABOVE

0°C)

TEXACO

RANDO HDZ 46

URSA SUPER

MULTIFAK ALL

PREMIUM 15W40

PURPOSE EP #2

ESSO

UNIVIS N 46

ESSOLUBE XT-5

RONEX MP

15W40

MOBIL

MOBIL DTE 13M

MOBIL DELVAC

RONEX MP

MOBILFLUID 424

MX 15W40

ESSO TORQUE

FLUID 56

MOBIL

AGRIFLUID 424

MOBIL FLUID 426

MOBILFLUID 2040

SHELL

TELLUS OIL T 46

RIMULA ULTRA

ALVANIA EP #2

ASEOL

10W40

MULTITRAC 85W

PENNZOIL

MULTIPURPOSE

WHITE GREASE

705 EP #2

Inspection, Maintenance and Adjustment

OP000436

4-14

LUBRICANT

HYDRAULIC OIL

ENGINE OIL

GEAR OIL

MANUFACTURER

GREASE

CASTROL

PARADENE AW

CASTROL EPL #2

KOMATSU WBL

32 (BELOW 0°C)

20W40

PARADENE AW

46 (ABOVE 0°C)

IDEMITSU KOSAN

DAPHNE KOSAN

DAPHNE

32 WR (BELOW

EXPONES SR #2

0°C)

DAPHNE KOSAN

46 WR

(ABOVE

0°C)

LUBRICANT

TRANSMISSION GEAR OIL

MANUFACTURER

Same as engine oil

SAE 15W40

API CD and above

Antifreeze

Recommended Concentration

Manufacturers Meeting ASTM D3306

Dexcool ELC by Chevron Texaco

50% Antifreeze - 50% Distilled Water

Alugard G48 by BASF

Others meeting or exceeding ASTM D3306

CAUTION!

Do not mix oils from different manufacturers. DOOSAN

does not endorse specific brands but does suggest that

owners select quality oils whose suppliers provide

assurance that required standards will always be met or

exceeded.

IMPORTANT

Fluctuating daily or weekly extremes of temperature, or

operation in subzero freezing weather may make it

impractical to use straight weight lubricants. Use good

judgement in selecting lubricant types that are

appropriate for climate conditions.

Inspection, Maintenance and Adjustment

OP000436

4-15

AXLE OILS DL400, DL300,

DL250

Oil Grade Mobile Fluid 424

Oil intended for axles with built-in brakes

Requirements

Property

Unit

Mobil fluid 424

Test method

Density

kg/l,

@15°C

0.884

ASTM D 4052

Flash Point

°C

198

ASTM D 92

Pour Point

°C

-42

ASTM D 97

Viscosity at 40°C

ASTM D 445

mm²/s (cSt)

Viscosity at 100°C

9.3

ASTM D 445

mm²/s (cSt)

Rust Protection 24h

No rust

ASTM D 665A

API Class

GL-4

ASTM STP-512A

Brokfield Viscosity

cp (@-35C)

55,000

Viscosity Index

145

ASTM D 2270

Examples of oils which meet the requirements according to

the table on the next page.

Inspection, Maintenance and Adjustment

OP000436

4-16

Axle Oils for DL400, DL300, DL250

Examples of oils which meet the requirements according to

the table on the previous page.

Lubricant Class 05E

Viscosity grades: SAE 20W-40 / 80W-140

Oil Company

Trade Name

CASTROL INTERNATIONAL, PANGBOURNE READING/GB

KOMATSU WBL 20W40

CNH, BURR RIDGE/USA

CASE TRANSAXLE FLUID, SAE 80W-140

EXXON MOBIL CORPORATION, FAIRFAX, VIRGINIA/USA

MOBILFLUID 2040

FUCHS PETROLUB AG, MANNHEIM/D

TITAN HYDRA ZF 20W-40

MAZIVA ZAGREB D.O.O. ZAGREB/HR

INA TRASHIDROL ZF 20W-40

OMV AG, SCHWECHAT/A

MOV AUSTROMATIC ZF SAE 20W-40

PAKELO MOTOR OIL S.R.L., SAN BONIFACIO (VR)/I

PAKELO UTTO FLUID 4D SAE 20W-40

STRUB + CO AG, REIDEN/CH

VULCOTRAC UTTO SAE 20W-40

Lubricant Class 05F

Oil Company

Trade Name

76 LUBRICANTS COMPANY, COSTA MESA/USA

76 HYDRAULIC/TRACTOR FLUID

ARAL AG, BOCHUM/D

ARAL FLUID HGS SAE 80W

AVIA MINERALOL-AG, MUNCHEN/D

AVIA HYDROFLUID DLZ

BP INTERNATIONAL, PANGBOURNE, READING/GB

BP OLEX GO 4926

BP INTERNATIONAL, PANGBOURNE, READING/GB

BP TERRAC SUPER TRANSMISSION

BP INTERNATIONAL, PANGBOURNE, READING/GB

BP TRACTRAN TF 10

BUCHER AG LANGENTHAL, LANGENTHAL/CH

MOTOREX POLYFARM 304

CASTROL INTERNATIONAL, PANGBOURNE READING/GB

CASTROL AGRI POWERTRANS 10W-30

CASTROL INTERNATIONAL, PANGBOURNE READING/GB

CASTROL AGRI TRANS PLUS 10W-30

CASTROL INTERNATIONAL, PANGBOURNE READING/GB

CASTROL KOMATSU UTTO 10W-30

CATERPILLAR MULTIPURPOSE

CATERPILLAR INC., PEORIA/USA

TRACTOR OIL (MTO) 10W-30

ENGEN PETROLEUM LTD., CAPE TOWN/ZA

ENGEN AGRIFLUID

ENI S.P.A. REFINING and MARKETING DIVISION, ROME/

ROTRA JD/F

EXXON MOBIL CORPORATION, FAIRFAX, VIRGINIA/USA

ESSO TORQUE FUID 56

EXXON MOBIL CORPORATION, FAIRFAX, VIRGINIA/USA

MOBIL AGRIFLUID 424

Inspection, Maintenance and Adjustment

OP000436

4-17

Oil Company

Trade Name

EXXON MOBIL CORPORATION, FAIRFAX, VIRGINIA/USA

MOBIL FLUID 424

EXXON MOBIL CORPORATION, FAIRFAX, VIRGINIA/USA

MOBIL FLUID 426

FLITALIA S.P.A., VILLASTELLONE/I

AMBRA MULTI G

FUCHS PETROLUB AG, MANNHEIM/D

TITAN HYDRA J20C

GINOUVES GEORGES SA, LA FARLEDE/F

YORK 676 SAE 10W30

IGOL FRANCE SA, AMIENS/F

TICMA FLUID MU SAE 80W

JOHN DEERE, MANNHEIM/D

JOHN DEERE HY-GARD

KENDALL MOTOR OIL, COSTA MESA/USA

KENDALL HYKEN 052

KUWAIT PETROLEUM RandT B.V., EUROPOORT RT/NL

Q8 T 2000

KUWAIT PETROLEUM RandT B.V., EUROPOORT RT/NL

Q8 T 2200

OEL-BRACK AG, HUNZENSCHWIL/CH

MIDLAND TOU

OMV AG, SCHWECHAT/A

OMV AUSTROMATIC IGB SAE 10W-30

PAKELO MOTOR OIL S.R.L, SAN BONIFACIO (VR)/I

PAKELO UTTO FLUID 4D SAE 10W/30

PANOLIN AG, MADETSWIL/CH

PANOLIN JD 303

PETROGAL S.A., LISBOA/P

GALP TRALUB 807S

REPSOL LUBRICANTES, MADRID/E

AGRO ORION SAE 10W30

SHELL ASEOL AG, BERN 5/CH

ASEOL MULTITRAC 85W

SRS SCHMIERSTOFF VERTRIEB GMBH, SALZBERGEN/D

WINTERSHALL HYDROFLUID N

Lubricant Class 05G

Oil Company

Trade Name

CATERPILLAR MULTIPURPOSE TRACTOR

CATERPILLAR INC., PEORIA/USA

OIL(MTO)

JOHN DEERE, MANNHEIM/D

JOHN DEERE HY-GARD

ZF FRIEDRICHSHAFEN AG, FRIEDRICHSHAFEN/D

ZF-POWERFLUID

Inspection, Maintenance and Adjustment

OP000436

4-18

DL06 Industrial Engines Oil Drain

Intervals by Duty Cycle (Hours)

Heavy

ACEA E5 (API CI-4)

500

CES 20078

NOTE:

Limit oil change interval to

250 hour maximum for oil grades if 40% of the operating time is in

ambient temperatures above 38°C (100°F) to prevent engine damage to oil degradation resulting

from high oil temperature.

We don't recommend the use of CF or CG grade oils. If CF or CG oils must be used, make the

oil drain intervals half of the API CI-4 values.

Engine oil drain intervals need to be reduced by

50% when fuel sulfur content exceeds

0.5%

(5000 ppm).

FLUID CAPACITIES

Component

Capacity

Engine

DL 06

27 liters

(7.1 U.S. gal.)

Oil Pan with Filter

Engine

NOTE: The filter holds an additional 1 liter (1 qt) of oil.

45 liters

Cooling System

(11.9 U.S. gal.)

255 liters

Fuel Tank

(67 U.S. gal.)

158 liters

Hydraulic Oil Tank

(42 U.S. gal.)

45 liters

Transmission

(11.9 U.S. gal.)

31 liters

Front Axle

(8.2 U.S. gal.)

Axles

24 liters

Rear Axle

(6.3 U.S. gal.)

Inspection, Maintenance and Adjustment

OP000436

4-19

LUBRICATION AND SERVICE

CHART

Greasing Bearing

The service life of bushings and pivot pins can be extended

considerably, if the machine is greased regularly and in the

correct way.

The greasing of bearings has two main purposes:

•

Add grease to the bearing to reduce friction

between pin and bushing.

•

Replace old grease which may contain dirt. The

grease in the space inside the outer seal collects

dirt and prevents dirt and also water from

penetrating into the bearing.

Therefore, grease the bearing until new, clean grease is

forced out through the outer seal.

Between 10 and 15 strokes with a normal handheld grease

gun is required to grease one of the bearings for the lifting

arms.

Wipe off grease fittings and grease gun before greasing, so

that dirt and sand is not introduced through the grease

fittings.

Inspection, Maintenance and Adjustment

OP000436

4-20

Service Data

Service Interval

No.

Items To Check

Service

Qty.

250

500

1000

1500

2000

Front Joint Pin

Grease

F100

Articulation Pin

Grease

Rear Axle Pivot

Grease

Steering Cylinder

Grease

Front Drive Shaft

Grease

Bearing

Fuel Tank

Diesel

255 L

Hydraulic

Hydraulic Oil Tank

158 L

Oil

Engine Oil

Engine Oil Pan

27 L

15W40

Coolant

Radiator

45 L

(Antifreeze)

Axle Gear

Front Axle

Oil

31 L

(80W90)

Axle Gear

Rear Axle

Oil

24 L

(80W90)

Engine Oil

Transmission

45 L

15W40

Pre

Fuel Filter

Cartridge

Main

Engine Oil Filter

Cartridge

Transmission Filter

Cartridge

Full Flow Filter

Element

Oil Suction Strainer

Strainer

Brake and Pilot Filter

Element

(Outer)

Air Cleaner

Element

(Inner)

Air Intake Precleaner

Case

Air

Outer

Conditioner

Cartridge

Inner

Filter

V: Maintenance and Refill.

C: Cleaning.

F: First Time Exchange Only.

F100: Every 10 Hours for First 100 Hours.

W10: Every 10 Hours If Operating In Water.

EG: Ethylene Glycol

- Standard Life Antifreeze

(Drain and replace using this interval.) See

“Engine

Cooling System” on page 4-75, for further explanation.

PG: Propylene Glycol - Extended Life Antifreeze (Drain and replace using this interval.) See

“Engine

Cooling System” on page 4-75, for further explanation.

Gray Box: Replacement On Every Interval.

NOTE: For additional service items see list of “Maintenance Intervals” on page 4-24.

Inspection, Maintenance and Adjustment

OP000436

4-23

MAINTENANCE INTERVALS

SERVICE ITEM

PAGE

10 Hour / Daily Service

Grease Front Attachment Pins (for First 100 Hours)

4-26

Inspect All Tires for Correct Tire Pressure and Signs of Damage or Abnormal Wear

4-26

Check Engine Oil Level

4-26

Check Transmission Oil Level Sight Gauge

4-27

Check Hydraulic System Oil Level

4-28

Check for Leaks in Hydraulic System

4-29

Fill Fuel Tank

4-29

Check for Leaks in Fuel System

4-30

Drain Fuel Condensation

4-30

Check Coolant Level

4-30

Check Level of Windshield Washer Liquid

4-31

Inspect the Bucket Teeth and Side Cutters for Signs of Wear

4-31

Inspect Seat Belt for Proper Operation

4-31

Inspect the Structure for Cracks and Faulty Welds

4-31

Check the Operation of All Switches

4-31

Check the Operation of All Exterior Lights, Horn and Control Console Indicator and

4-32

Monitor Lights

Start Engine, Check Starting Ability, and Observe Exhaust Color at Start-up and at

4-32

Normal Operating Temperature. Listen for Any Abnormal Sounds

Check Operation of All Controls

4-32

Inspect Cooling Fan Blade

4-33

Check Engine Drive Belt Wear

4-33

Check Air Intake System

4-34

50 Hour / Weekly Service

Perform All Daily, 10 Hour Service Checks

4-35

Grease Front Attachment Pins

4-35

Grease Steering Cylinder Rod and Head Ends

4-38

Grease Upper and Lower Center Pins

4-39

Replace Engine Oil and Filter (After First 50 Hours)

4-39

Replace Hydraulic Full Flow Filter (After First 50 Hours)

4-39

Check Air Conditioner and Alternator Belt Tension (After First 50 Hours)

4-39

Clean Exterior of Radiator, Oil Cooler and Air Conditioner Condenser

4-40

Clean Air Conditioner Outer Filter

4-40

250 Hour / Monthly Service

Perform All Daily 10 Hour and 50 Hour Service Checks

4-41

Check Engine Air Intake Precleaner

4-41

Drain Water From Hydraulic Oil Tank

4-41

Turbocharger

4-42

Check Air Conditioner and Alternator Belt Tension

4-42

Grease Drive Shafts

4-43

Inspection, Maintenance and Adjustment

OP000436

4-24

Transmission Oil and Filter (After First 250 Hours)

4-43

Clean Outer Filter of Air Cleaner

4-44

Water Trap

4-45

500 Hour / 3 Month Service

Perform All Daily, 10, 50 and 250 Hour Service Checks

4-46

Replace Hydraulic System Brake and Pilot Filter

4-46

Replace Fuel Prefilter

4-47

Fuel Filter (Spin-On Type)

4-48

Replace Fuel Filter

4-49

Clean Exterior of Radiator, Oil Cooler and Air Conditioner Condenser

4-49

Clean Inner Air Conditioner Filter

4-50

Replace Axle Differential and Planetaries Oil Replacement (After First 500 Hours)

4-50

Replace Engine Oil and Filter

4-51

Replace Air Conditioner Outer Filter

4-52

1,000 Hour / 6 Month Service

Perform All Daily 10, 50, 250 and 500 Hour Service Checks

4-53

Air Cleaner

4-53

Replace Outer Air Cleaner Element

4-54

Drain and Replace Transmission Oil and Filter

4-55

Clean Fuel Tank and Strainer

4-57

Replace Inner Air Conditioner Filter

4-58

Check Air Conditioner Refrigerant

4-58

Check and Adjust Engine

4-59

Replace Hydraulic Full Flow Filter

4-60

1,500 Hour / 9 Month Service

Perform All Daily 10, 50, 250 and 500 Hour Service Checks

4-61

Replace Axle Differential and Planetaries Oil

4-61

Axle Brake Disk Wear Measurement

4-63

2,000 Hour / Yearly Service

Perform All Daily, 10, 50, 250, 500 and 1,000 Hour Service Checks

4-64

Replace Inner Air Cleaner Element

4-64

Check Steering, Brake, Drive Shaft, Engine, and Fuel System

4-64

Replace Pipes and Hoses

4-64

Bleed Brakes

4-65

Replace Radiator Coolant

4-66

Replace Hydraulic Oil and Clean Oil Suction Strainer

4-67

Check Brake Accumulator

4-69

12,000 Hour / Six Year Service

Hose In-service Lifetime Limit (European Standard ISO 8331 and EN982

CEN)

4-70

Inspection, Maintenance and Adjustment

OP000436

4-25

10 HOUR / DAILY SERVICE

Grease Front Attachment Pins (for First

100 Hours)

NOTE: Fittings are greased daily, or every 10 hours, for the

first

100 hours of operation to comply with new

machine break-in requirements. After that, greasing

must be done every 50 hours. If bucket is being used

in water, grease fittings immediately after machine is

removed from water. Follow procedure printed under

the

50 hour maintenance interval

“Grease Front

Attachment Pins” on page 4-35.

Inspect All Tires for Correct Tire

Pressure and Signs of Damage or

Abnormal Wear

Inflate tires to proper operating pressure for working

conditions. See “Tires” on page 4-86

Check Engine Oil Level

NOTE: When checking level using a dipstick always remove

and wipe it clean before making final level check.

Check level of engine oil every day before starting

engine.

FG006238

Figure 13

Remove engine oil dipstick

(Figure

13,

1). Oil level

must be between "LOW" and "FULL" marks.

NOTE: If oil is above "HIGH" mark on dipstick, some

must be drained to return oil to proper level.

To add oil, remove engine oil fill cap (Figure 13, 2).

HAOC280L

Figure 14

Inspection, Maintenance and Adjustment

OP000436

4-26

Check Transmission Oil Level Sight

Gauge

Use two people to perform this operation.

Start machine and drive it until transmission fluid has

warmed to 80°C (176°F). Park machine on firm, level

ground. Lower bucket to ground.

Place transmission lever in "NEUTRAL." Apply parking

brake. Shut down engine.

FG006242

Block tires. Once tires are blocked, start engine and

Figure 15

have a person remain in the cabin.

With engine running, have second person, find

transmission oil level sight gauge

(1, Figure

16) on

transmission fill tube (2).

Oil level must be at "HOT" mark or above as shown in

(Figure 16).

NOTE: If oil level is above top end of sight gauge

(completely filling it), drain oil until level is at

"HOT" mark.

NOTE: If transmission cannot reach an operating

temperature of 80°C (176°F), then the oil level

must be visible in the sight gauge below the

"HOT" mark. Periodically check oil level during

the workday to ensure that oil level does not rise

above top end of sight gauge.

FG006236

Figure 16

TRANSMISSION SIGHT GAUGE

TRANSMISSION FILL TUBE

To add oil, remove transmission fill cap

(Figure

15)

from transmission oil fill pipe. Refer to

“Table of

Recommended Lubricants” on page 4-14, of this

manual for recommended oil for the operating

conditions.

HOT

Shut down engine when done.

COLD

HAAD4540

Figure 17

TRANSMISSION SIGHT GAUGE

Inspection, Maintenance and Adjustment

OP000436

4-27

Check Hydraulic System Oil Level

WARNING!

The hydraulic oil will be hot after normal machine

operation. Allow system to cool before attempting to

service any of the hydraulic components.

The hydraulic tank is pressurized. Turn breather cap

slowly to allow pressurized air to vent. After the

HAOA060L

pressure has been released, it is safe to remove either

Figure 18

the fill cap or service covers.

Move machine to a level area and shut down engine.

Apply parking brake.

Lower bucket to ground.

Check sight gauge that is attached to hydraulic tank.

Oil level must be visible in red centered circle shown

on sight gauge (1, Figure 19).

FG001623

Figure 19

To add hydraulic oil, turn breather cap

(1, Figure

20)

slowly to allow pressurized air to vent.

Remove upper cover (2, Figure 20) from hydraulic oil

tank and raise boom at max. height and replenish oil

to the top of sight gauge (Figure 19).

IMPORTANT

Do not fill above red centered circle on sight

FG001624

gauge. Overfilling can result in damage to

Figure 20

equipment and oil leaking from hydraulic tank due

to expansion.

The hydraulic oil fill cover also serves as the hydraulic oil

strainer access cover. It is important to replace this cover

and the components in the proper order and alignment.

The filter (2, Figure 21), retaining rod (3) and spring (4) are

assembled as shown in Figure 21. The hole (1) in the base

of the filter fits over a circular base in the bottom of the

tank. The retaining rod

(3) screws into the top of the filter

(2), but the spring

(4) slides over the top of the rod. Be

certain that this spring does not fall into the tank during

reassembly.

FG002188

If filter assembly was removed, insert assembly into the

Figure 21

tank and check to make sure it is securely in place.

Inspection, Maintenance and Adjustment

OP000436

4-28

Check O-ring for damages and replace if necessary.

Check position of O-ring at surface of hole.

Place the cover on the access hole. Make sure the

spring retaining cup (1, Figure 22) in the lower section

of the cover is lined up with the spring. The filter

assembly rod must be in a vertical position and

perpendicular to the base of the tank. The cover can

be rotated to align the rod into a vertical position.

Tighten mounting bolts to 4.84 kg•m (35 ft lb).

FG002189

Figure 22

Check for Leaks in Hydraulic System

Perform a daily walk-around inspection to make sure

that the hoses, piping, fittings, cylinders and hydraulic

motors are not showing any signs of leakage. If any is

noted, determine the source of the leak and repair.

Fill Fuel Tank

WARNING!

Use extreme safety precautions while refueling to

prevent explosions or fire.

Immediately clean up any spilt fuel.

FG001689

At end of each work day, fill fuel tank. Add fuel

Figure 23

through fuel fill cap

(Figure

23). When working at a

temperature of

0°C (32°F) or higher, use ASTM No.

2-D or its equivalent. At temperatures below 0°C (32°F)

use ASTM No. 1-D or its equivalent.

Securely tighten cap after fueling.

NOTE: If breather holes in cap are clogged, a vacuum

may form in the tank preventing proper fuel flow

to engine. Keep holes in fuel cap clean.

FG001690

Figure 24

Inspection, Maintenance and Adjustment

OP000436

4-29

Check for Leaks in Fuel System

Perform an inspection of engine compartment to verify

that fuel system is not leaking. If any is noted,

determine the source of leak and repair.

Drain Fuel Condensation

Open fuel tank drain valve.

(Figure

25). Allow any

condensed water or sediment to drain out of tank.

NOTE: Dispose of drained fluids according to local

regulations.

FG006245

Figure 25

Check Coolant Level

NOTE: Do not mix ethylene glycol and propylene glycol

antifreeze together. If the two are mixed, the

protection level will be reduced to the level of the

ethylene glycol.

NOTE: This unit was factory filled with propylene glycol.

WARNING!

FG001692

Figure 26

Never open radiator when it is hot. Scalding liquid

inside a hot radiator is under pressure. Removing cap

from a hot radiator could cause a person to be sprayed

and burned from liquid inside. Wait for radiator

temperature to cool down before removing cap.

Check sight gauge

(1, Figure

27) that is attached to

the radiator. Coolant level must be visible in red

centered circle shown on gauge. To add coolant,

remove fill cap

(2, Figure

27) of the radiator and add

coolant to proper level by checking sight gauge

(1,

Figure

27). If temperature is below freezing, see

“Antifreeze Concentration Tables” on page 4-76 for

antifreeze protection. Use the table to calculate a

proper mixture of antifreeze and water to provide level

of protection necessary for expected temperature.

FG006258

Figure 27

Inspection, Maintenance and Adjustment

OP000436

4-30

Check Level of Windshield Washer

Liquid

Check fluid level in windshield washer tank, behind

operator's seat.

Open fill cap and add fluid.

NOTE: Use a washer liquid that is rated for all seasons.

The will prevent freezing during cold weather

operation.

FG001693

Figure 28

Inspect the Bucket Teeth and Side

Cutters for Signs of Wear

On a daily basis, inspect bucket teeth to make sure

that tooth wear or breakage has not developed.

Do not allow replaceable bucket teeth to wear down to

the point that base edge is exposed. (Figure 31)

NOTE: These instructions are only for DOOSAN OEM

buckets. If you are using other manufacturers'

buckets, refer to their specific instructions.

FG007021

Figure 29

Inspect Seat Belt for Proper Operation

Inspect the Structure for Cracks and

Faulty Welds

During the daily walk-around inspection and when

greasing the machine, look for any visible damage to

the machine. Repair or replace any damaged parts

before operating machine.

Check the Operation of All Switches

Verify working condition of all switches before starting

engine.

Inspection, Maintenance and Adjustment

OP000436

4-31

Check the Operation of All Exterior

Lights, Horn and Control Console

Indicator and Monitor Lights

Turn engine starter switch to "I"

(ON) position and

observe all indicator lights.

Restore operation of any light bulbs that do not turn

"ON" at this time.

Sound the horn. Repair or replace if required.

Turn "ON" and inspect all exterior work lights. Replace

any monitors, burned out bulbs or cracked or broken

housings or lenses.

Start Engine, Check Starting Ability, and

Observe Exhaust Color at Start-up

and at Normal Operating

Temperature. Listen for Any

Abnormal Sounds

Check Operation of All Controls

IMPORTANT

Cold weather operation requires that the operator fully

warm up the hydraulic oil before beginning machine

operation. Follow all warm up instructions listed in the

Operating Instruction section of this manual. Make sure

to cycle oil through all of the components, including all

cylinders, both travel motors and the swing motor. Cold

hydraulic oil in the lines and components needs to be

warmed before beginning full operation. If this is not

done, damage to the cylinders or hydraulic motors can

occur.

With engine at rated speed, operate all of the controls.

Follow cold weather hydraulic system warm-up

procedures.

Note any slow operations or unusual movements.

Determine the cause and repair fault before operating.

Inspection, Maintenance and Adjustment

OP000436

4-32

Inspect Cooling Fan Blade

WARNING!

Personal injury can result from a fan blade failure.

Never pull or pry on the fan. This can damage the fan

blade(s) and cause fan failure.

An inspection of the cooling fan is required daily.

Check for cracks, loose rivets, bent or loose blades,

Figure 30

and for contact between the blade tips and the fan

shroud. Check the fan to make sure it is securely

mounted. Tighten the bolts if necessary. Replace any

fan that is damage.

Check Engine Drive Belt Wear

WARNING!

Keep clear of engine fan and fan drive belts when the

engine is running. Rotating fan and belt contact can

cause injury.

WARNING!

Figure 31

When checking, adjusting or replacing drive belts, care

must be taken to prevent accidental cranking of the

engine. Be sure the starter switch is in the "O"

(OFF)

position and the controls are tagged.

Replace badly worn, greasy or severely cracked belts

immediately. These conditions prevent proper belt

function. Visually inspect the belt. Check the belt for

intersecting cracks. Transverse

(across the belt width)

cracks are acceptable. Longitudinal

(direction of belt

length) cracks that intersect with transverse cracks are

not acceptable. Replace the belt if it is frayed or has

pieces of material missing.

Before installing new belts, make sure all pulley

grooves are clean and not worn. Replace pulley, if

damaged, or if the grooves are worn.

All pulley support bearings, shafts, and brackets must

be in working order.

When replacing belts and pulleys, pulley alignment

must be checked with belts tensioned and brackets

securely clamped. A misalignment that can be detected

by the naked eye is detrimental to belt performance.

Inspection, Maintenance and Adjustment

OP000436

4-33

Do not force the belts into the pulley grooves by prying

with a screwdriver or pry bar. This will damage the belt

side cords which will cause the belts to turn and result

in complete destruction of the belts in operation.

Belts on new machines and replacement belts lose

their tension as they seat into the pulley grooves.

Check the tension of new belts at

20 hour intervals

until tension is stabilized and thereafter, every

250

hours. If the tension falls below the required minimum,

the belt will be able to slip, damaging the belts and

pulley grooves.

NOTE: When operating in abrasive conditions, check

tension every 100 hours.

Check Air Intake System

WARNING!

Hot engine components can cause burns.

Avoid contact with hot engine components.

Park the machine on a level surface, apply the parking

brake, lower the attachment to the ground, and shut

HAOA050L

down engine.

Figure 32

Check the engine intake hose, and hose clamps for

damage and tightness.

If damaged, wrinkled or loose, replace, tighten or

contact your nearest DOOSAN loader dealer.

IMPORTANT

Severe engine damage will result from running with

unfiltered air.

Do not operate engine if any leaks or defects are

Figure 33

found on air intake system.

Inspection, Maintenance and Adjustment

OP000436

4-34

50 HOUR / WEEKLY SERVICE

Perform All Daily, 10 Hour Service

Checks

Grease Front Attachment Pins

Following fittings are greased daily, or every 10 hours,

for first

100 hours of operation to comply with new

machine break-in requirements. After that, greasing

must be done every 50 hours. If bucket is being used

in water, grease fittings immediately after machine is

removed from water.

FG006247

Figure 34

Inspection, Maintenance and Adjustment

OP000436

4-35

C: Bucket cylinder rod end, 1 location. (Figure 41).

FG006252

Figure 39

D: Lift cylinder heads

(left, right),

2 locations (Figure

40).

FG006253

Figure 40

Lift cylinder rod ends, 2 locations. (Figure 43).

FG006254

Figure 41

E: Remote location points.

Remote fittings for bucket cylinder head

(50

HOUR) (Figure 44, 1).

Remote fittings for loader arm foot end(50HOUR).

(Figure 42, 2)

FG006255

Figure42

Inspection, Maintenance and Adjustment

OP000436

4-37

F: Rear Axle pivot (1, Figure 43), 3 locations on right

side of machine. Use remote grease fittings

mounted on frame shown in Figure 44.

FG006256

Figure 43

PIVOT COVER

REAR PIVOT

FRONT PIVOT

FG006257

Figure 44

Grease Steering Cylinder Rod and Head

Ends

Steering cylinder rods, 2 locations, one on each side of

machine.

FG006246

Figure 45

Steering cylinder head ends,

2 locations. Use remote

grease fittings mounted on frame. (1 and 2, Figure 46).

Remote Grease

Reference Number

Fittings

1 and 2,

Steering Cylinder

50 Hours

Head Ends

Drive Shaft

250 Hours

Center Bearing

FG001640

Figure 46

Inspection, Maintenance and Adjustment

OP000436

4-38

Doosan DL250. Operation and Maintenance Manual (2006) - page 2