Doosan Solar 255LC-V. Operation and Maintenance Manual (2002)

Solar 255LC-V

Operation and Maintenance Manual

022-00031E

Serial Number 1001 and Up

August 2002

Daewoo reserves the right to improve our products in a continuing process to provide the best possible

product to the market place. These improvements can be implemented at any time with no obligation to

change materials on previously sold products. It is recommended that consumers periodically contact their

distributors for recent documentation on purchased equipment.

This documentation may include attachments and optional equipment that is not available in your

machine’s package. Please call your distributor for additional items that you may require.

Illustrations used throughout this manual are used only as a representation of the actual piece of

equipment, and may vary from the actual item.

022-00031E Operation and Maintenance Manual

TABLE OF CONTENTS

Safety

1-1

To the Operator of a Daewoo Excavator

1-1

Location of Safety Labels

1-4

Summary of Safety Precautions for Lifting in Digging Mode

1-12

Unauthorized Modifications

1-13

General Hazard Information

1-13

Before Starting Engine

1-21

Machine Operation

1-24

Maintenance

1-29

Battery

1-37

Towing

1-39

Shipping and Transportation

1-40

Excavator Rated Lift Capacity Tables

1-41

Operating Controls

2-1

Component Locations

2-2

Operator’s Area

2-4

Operational Controls and Panels

2-5

Instrument Panel

2-14

Multifunction Gauge and Graphic Information

2-19

Mode Selection Buttons

2-23

Setting Method for Main Menu

2-26

Heater and Air Conditioner Control Panel

2-30

Stereo

2-35

Fuse Boxes

2-42

Miscellaneous Electrical Devices

2-43

Seat Adjustment

2-45

Seat Belt

2-47

Ceiling Cover

2-48

Front Windows

2-49

022-00031E Operation and Maintenance Manual

Table of Contents I

Door Side Latch

2-52

Miscellaneous Access Covers and Doors

2-53

Cab Storage Compartments

2-54

Ashtray

2-54

Emergency Glass Breaking Tool

2-55

Operation

3-1

To Handle a New Excavator

3-1

Starting and Stopping the Engine

3-2

Safety Lever

3-14

Travel

3-15

Operating Instructions

3-20

Operating Precautions

3-25

Parking Excavator

3-30

Towing Procedure

3-31

Hydraulic Breaker

3-32

Operating Techniques

3-36

Operation Under Unusual Conditions

3-38

Inspection, Maintenance and Adjustment

4-1

Preliminary Work Machine Setup for Maintenance

4-3

Table of Recommended Lubricants

4-5

Fluid Capacities

4-7

Lubrication and Service Chart

4-7

Maintenance Intervals

4-10

10 Hour / Daily Service

4-12

50 Hour / Weekly Service

4-22

250 Hour / Monthly Service

4-26

500 Hour / 3 Month Service

4-31

1000 Hour / 6 Month Service

4-39

2000 Hour / Yearly Service

4-45

4000 Hour / Biennial Service

4-48

12,000 Hour / Six Year Service

4-49

II Table of Contents

022-00031E Operation and Maintenance Manual

Venting and Priming Hydraulic System

4-50

Handling of Accumulator

4-52

Fuel Transfer Pump (Option)

4-53

Electrical System

4-55

Air Conditioning System

4-59

Bucket

4-60

Bucket Shimming Procedures

4-63

Track Tension

4-64

Bolt and Nut Inspection

4-66

Maintenance in Special Conditions

4-67

Long Term Storage

4-68

Transportation

5-1

Loading and Unloading

5-1

Lifting With Sling

5-4

Troubleshooting

6-1

Engine

6-1

Hydraulic System

6-2

Swing System

6-3

Travel System

6-4

Electrical System

6-4

Specification

7-1

Standard Specification

7-1

Overall Dimensions

7-2

Working Range

7-3

Approximate Weight of Workload Materials

7-4

Index

8-1

022-00031E Operation and Maintenance Manual

Table of Contents III

1SAFETY

TO THE OPERATOR OF A DAEWOO EXCAVATOR

DANGER!

Unsafe use of the excavator could lead to serious injury or death. Operating procedures,

maintenance and equipment practices or traveling or shipping methods that do not follow the

safety guidelines on the following pages could cause serious, potentially fatal injuries or

extensive damage to the machine or nearby property.

Please respect the importance of taking responsibility for your own safety, and that of other people who

may be affected by your actions.

The safety information on the following pages is organized into the following sections:

“Location of Safety Labels” on page 1-4

“Summary of Safety Precautions for Lifting in Digging Mode” on page 1-12

“General Hazard Information” on page 1-13

“Before Starting Engine” on page 1-21

“Machine Operation” on page 1-24

“Maintenance” on page 1-29

“Battery” on page 1-37

“Towing” on page 1-39

“Shipping and Transportation” on page 1-40

10.

“Excavator Rated Lift Capacity Tables” on page 1-41

022-00031E Operation and Maintenance Manual

Safety 1-1

WARNING!

Improper operation and maintenance of this machine can be hazardous and could result in

serious injury or death.

Operator and maintenance personnel should read this manual thoroughly before beginning

operation or maintenance.

Keep this manual in the storage compartment to the rear of the operator’s seat, and have all

personnel involved in working on the machine read the manual periodically.

Some actions involved in operation and maintenance of the machine can cause a serious

accident, if they are not done in a manner described in this manual.

The procedures and precautions given in this manual apply only to intended uses of the

machine.

If you use your machine for any unintended uses that are not specifically prohibited, you must

be sure that it is safe for any others. In no event should you or others engage in prohibited uses

or actions as described in this manual.

Daewoo delivers machines that comply with all applicable regulations and standards of the

country to which it has been shipped. If this machine has been purchased in another country or

purchased from someone in another country, it may lack certain safety devices and

specifications that are necessary for use in your country. If there is any question about whether

your product complies with the applicable standards and regulations of your country, consult

Daewoo or your Daewoo distributor before operating the machine.

1-2 Safety

022-00031E Operation and Maintenance Manual

SAFETY ALERT SYMBOL

Be Prepared - Get To Know All Operating and Safety Instructions.

This is the Safety Alert Symbol. Wherever it appears in this manual or on safety signs on the

machine you should be alert to the potential for personal injury or accidents. Always observe

safety precautions and follow recommended procedures.

LEARN THE SIGNAL WORDS USED WITH THE SAFETY ALERT SYMBOL

The words "CAUTION," "WARNING," and "DANGER" used throughout this manual and on decals on the

machine indicate degree of risk of hazards or unsafe practices. All three degrees of risk indicate that safety

is involved. Observe precautions indicated whenever you see the Safety Alert "Triangle," no matter which

signal word appears next to the "Exclamation Point" symbol.

CAUTION!

This word is used on safety messages and safety labels and indicates potential of a hazardous

situation that, if not avoided, could result in minor or moderate injury. It may also be used to alert

against a generally unsafe practice.

WARNING!

This word is used on safety messages and safety labels and indicates potential of a hazardous

situation that, if not avoided, could result in serious injury or death. It may also be used to alert

against a highly unsafe practice.

DANGER!

This word is used on safety messages and safety labels and indicates an imminent hazard of a

situation that, if not avoided, is very likely to cause death or extremely serious injury. It may also

be used to alert against equipment that may explode or detonate if handled or treated carelessly.

Safety precautions are described in SAFETY from page 1-4 on.

Daewoo cannot predict every circumstance that might involve a potential hazard in operation and

maintenance. Therefore the safety messages in this manual and on the machine may not include all

possible safety precautions. If any procedures or actions not specifically recommended or allowed in this

manual are used, you must be sure that you and others can do such procedures and actions safely and

without damaging the machine. If you are unsure about the safety of some procedures, contact a

DAEWOO distributor.

022-00031E Operation and Maintenance Manual

Safety 1-3

LOCATION OF SAFETY LABELS

AYO0010L

Figure 1

There are several specific warning signs on this machine. The exact location of hazards and the

description of the hazards are reviewed in this section.

Please become familiarized with all warning signs.

Make sure that all of the warning signs are legible. Clean the warning signs or replace the warning signs if

you cannot read the words. Replace the illustrations if the illustrations are not visible. When you clean the

warning signs, use a cloth, water and soap. Do not use solvent, gasoline, or other harsh chemicals to clean

the safety signs. Solvents, gasoline, or other harsh chemicals could loosen the adhesive that secures the

warning sign. Loose adhesive will allow the warning sign to fall off.

Replace any safety sign that is damaged, or missing. If a safety sign is attached to a part that is replaced,

install a safety sign on the replacement part.

1-4 Safety

022-00031E Operation and Maintenance Manual

WARNINGS FOR OPERATION, INSPECTION AND MAINTENANCE (190-00688, 190-00092).

AVOID DEATH OR SERIOUS INJURY. - READ AND UNDERSTAND

OPERATION MANUAL AND SAFETY LABELS prior to operating

this machine.

Never get in under the machine while it is being jacked up

with boom and arm.

Sound the horn to alert the people nearby before operating,

and make sure that all persons are clear of area.

190-00092

Controls may be changed for attachments or operator

preference. Try control pattern before operating.

190-00688

ARO1080L

WARNINGS FOR HIGH VOLTAGE (190-00689, 190-00096)

DANGER

SERIOUS INJURY OR DEATH BY

ELECTROCTION can occur if

machine or attachments are

not a safe distance from electrical

power lines.

Line voltage

Safe Distance

6.6 kv

At least 3m(10ft)

66.6 kv

At least 5m(16ft)

190-00096

275.0 kv

At least 10m(33ft)

190-00689

ARO1090L

WARNINGS WHEN OPENING A FRONT WINDOW (190-00690, 190-00093).

Falling window can cause

injury.

When raising window,

lock it in place with lock

pin on left side.

190-00690

190-00093

ARO1100L

022-00031E Operation and Maintenance Manual

Safety 1-5

WARNINGS FOR A HIGH PRESSURE

CYLINDER (190-00122).

190-00122

ARO1110L

WARNINGS WHEN ADJUSTING TRACK TENSION (2190-3386A, 190-00521).

The track adjuster adjustment and handling

The spring in the track adjuster is loaded with great force

and the pressure in the cylinder is very high. For this

reason there is a possibility of an accident which

may involve injury to personnel. It is very dangerous

to make mistakes when performing such an adjustment

or disassembly.

Be sure to read the procedures described in the Operation

and Maintenance Manual carefully before adjusting the

track tension.

2190-3386A

190-00521

ARO1120L

1-6 Safety

022-00031E Operation and Maintenance Manual

WARNINGS FOR LEAVING OPERATOR’S SEAT (190-00693, 190-00094).

Sudden and unwanted machine

movement can cause serious

injury or death.

Always make sure when leaving

operator's seat to :

Lower equipment to the ground.

Move safety lever to LOCK position.

Turn key switch OFF. Remove key

from switch.

190-00693

190-00094

ARO1140L

WARNINGS FOR BATTERIES MAINTENANCE (2190-2533A, 190-00100).

Battery fumes can explode. Keep sparks and flames away

from batteries.

Always avoid storing metals like tools or flammable

materials around or on the batteries. Explosion or fire

can be caused by shortcircuiting batteries.

Surfuric acid in battery is poisonous. It is strong enough

burn skin, eat holes in clothing, and cause blindness

if splashed eyes.

If you spill acid on yourself;

1. Flush your skin with water.

2. Apply baking soda or lime to help neutralize the acid.

3. Flush your eyes with water for 10-15 minutes.

Get medical attention immediately.

2190-2533A

190-00100

ARO1150L

022-00031E Operation and Maintenance Manual

Safety 1-7

WARNINGS FOR HIGH TEMPERATURE HYDRAULIC OIL (190-00691, 190-00097)

HOT OIL CAN CAUSE INJURY OR

BLINDNESS.

To prevent hot oil from spurting out:

Tur n engine off

Allow oil to cool

190-00097

Slowly loosen cap to relieve

pressure

190-00691

ARO1160L

WARNINGS FOR HOT COOLANT (190-00692, 190-00097)

HOT COOLANT CAN CAUSE INJURY

OR BLINDNESS.

Never loosen or open radiator cap

when coolant is hot and under

pressure.

To open cap, stop engine, wait until

radiator is cool. Then loosen cap

190-00097

slowly to relieve the pressure.

190-00692

ARO1170L

10. WARNINGS FOR HANDLING AN ACCUMULATOR (190-00703, 190-00099).

Keep away from flame.

Do not weld on, or drill

into the accumulator.

EXPLOSION HAZARD

190-00703

190-00099

ARO1180L

1-8 Safety

022-00031E Operation and Maintenance Manual

SUMMARY OF SAFETY PRECAUTIONS FOR LIFTING

IN DIGGING MODE

DANGER!

Unsafe use of the excavator while making rated lifts could cause serious, potentially fatal

injuries or extensive damage to the machine or nearby property. Do not let anyone operate the

machine unless they’ve been properly trained and understand the information in the Operation

and Maintenance Manual.

To lift safely while in Digging Mode, the following items must be evaluated by the operator and the work site

crew.

•

Condition of ground support.

•

Excavator configuration and attachments.

•

Weight, lifting height and lifting radius.

•

Safe rigging of the load.

•

Proper handling of the suspended load.

Taglines on opposite sides of the load can be very helpful in keeping a suspended load secure, if they are

anchored safely to control points on the ground.

WARNING!

NEVER wrap a tagline around your hands or body.

NEVER rely on taglines or make rated lifts when wind gusts are more than 48.3 km/hr (30 mi/h).

Be prepared for any type of wind gust when working with loads that have a large surface area.

Always engage the "Digging Mode" control on the Instrument Panel before using the excavator for lifting

work.

WARNING!

If you need more information or have any questions or concerns about safe operating

procedures or working the excavator correctly in a particular application or in the specific

conditions of your individual operating environment, please consult your local Daewoo

representative.

1-12 Safety

022-00031E Operation and Maintenance Manual

UNAUTHORIZED MODIFICATIONS

Any modification made without authorization or written approval from Daewoo can create a safety hazard,

for which the machine owner must be held responsible.

For safety’s sake, replace all OEM parts with the correct authorized or genuine Daewoo part. For example,

not taking the time to replace fasteners, bolts or nuts with the correct replacement parts could lead to a

condition in which the safety of critical assemblies is dangerously compromised.

GENERAL HAZARD INFORMATION

SAFETY RULES

Only trained and authorized personnel can operate and maintain the machine.

Follow all safety rules, precautions and instructions when operating or performing maintenance on the

machine.

Do not operate the machine if you are not feeling well, if you are taking medication that makes you feel

sleepy, if you have been drinking, or if you are suffering from emotional problems. These problems will

interfere with your sense of judgement in emergencies and may cause accidents.

When working with another operator or with a person on work site traffic duty, be sure that all personnel

know the nature of the work and understand all hand signals that are to be used.

Always observe strictly any other rules related to safety.

SAFETY FEATURES

Be sure that all guards and covers are installed in their proper position. Have guards and covers repaired

immediately if damaged.

Be sure that you understand the method of use of safety features such as safety lock lever and the seat

belt, and use them properly.

Never remove any safety features. Always keep them in good operating condition.

Failure to use safety features according to the instructions in the Operation and Maintenance Manual could

result in serious bodily injury.

022-00031E Operation and Maintenance Manual

Safety 1-13

INSIDE OPERATOR'S COMPARTMENT

When entering the operator's compartment, always remove all mud and oil from the soles of your shoes. If

you operate the travel pedal with mud or oil stuck to your shoes, your foot may slip and this may cause a

serious accident.

After using the ashtray, make sure that any matches or cigarettes are properly extinguished, and be sure to

close the ashtray. If the ashtray is left open, there is danger of fire.

Do not stick suction pads to the window glass. Suction pads act as a lens and may cause fire.

Do not leave lighters laying around the operator's compartment. If the temperature inside the operator's

compartment becomes high, there is danger that the lighter may explode.

Do not use cellular telephones inside the operator's compartment when driving or operating the machine.

There is danger that this may lead to an unexpected accident.

Never bring any dangerous objects such as flammable or explosive items into the operator's cab.

To ensure safety, do not use the radio or music headphones when operating the machine. There is danger

that this may lead to a serious accident.

When operating the machine, do not put your hands or head out of the window.

When standing up from the operator's seat, always place safety lock lever securely in the "LOCK" position.

If you accidentally touch the work equipment levers when they are not locked, the machine may suddenly

move and cause serous injury or damage.

When leaving the machine, lower the work equipment completely to the ground, set safety lock lever to the

"LOCK" position and shut down engine. Use the key to lock all the equipment. Always remove the key and

take it with you.

CLOTHING AND PERSONAL PROTECTIVE

ITEMS

Contain long hair, and avoid loose clothing and

jewelry. They can catch on controls or in

protruding parts and cause serious injury or

death.

Do not wear oily clothes. They are highly

flammable.

Full eye protection, a hard hat, safety shoes and

gloves may be required at the work site.

HAOA020L

While working on the machine, never use

Figure 2

inadequate tools. They could break or slip,

causing injury, or they may not adequately

perform intended functions.

BREATHING MASKS, EAR PROTECTION MAY BE REQUIRED

Don’t forget that some risks to your health may not be immediately apparent. Exhaust gases and noise

pollution may not be visible, but these hazards can cause disabling or permanent injuries.

1-14 Safety

022-00031E Operation and Maintenance Manual

MOUNTING AND DISMOUNTING

Before getting on or off the machine, if there is any oil. grease, or mud on the handrails, steps, or track

shoes, wipe it off immediately. Always keep these parts clean. Repair any damage and tighten any loose

bolts.

Never jump on or off the machine. In particular, never get on or off a moving machine. These actions may

lead to serious injury.

When getting on or off the machine, always face the machine, and maintain three-point contact (both feet

and one hand or one foot and both hands) with the handrails, steps, and track shoes to ensure that you

support yourself securely.

Never hold any control levers when getting on or off the machine.

Apply the door lock securely. If you grip the handrail inside the door when moving on top of the track shoes,

and the door lock is not applied securely, the door may move and cause you to fall.

Use the points marked by arrows in the diagram when getting on or off the machine.

Figure 3

022-00031E Operation and Maintenance Manual

Safety 1-15

FUEL, OIL AND HYDRAULIC FLUID FIRE

HAZARDS

Fuel, oil and antifreeze will catch fire if it is

brought close to a flame. Fuel is particularly

flammable and can be hazardous.

Always strictly observe the following.

Add fuel, oil, antifreeze and hydraulic fluid to the

machine only in a well-ventilated area. The

machine must be parked with controls, lights

and switches turned "OFF." The engine must be

"OFF" and any flames, glowing embers,

auxiliary heating units or spark-causing

equipment must be doused, turned off and/or

kept well clear of the machine.

Static electricity can produce dangerous sparks

at the fuel filling nozzle. In very cold, dry

Figure 4

weather or other conditions that could produce a

static discharge, keep the tip of the fuel nozzle

in constant contact with the neck of the fuel

filling nozzle, to provide a ground.

Keep fuel and other fluid reservoir caps tight and

do not start the engine until caps have been

secured.

PRECAUTIONS WHEN HANDLING FLUIDS

AT HIGH TEMPERATURE

Immediately after operations are stopped, the

coolant, engine oil, and hydraulic oil are at high

temperature and the radiator and hydraulic tank

are still under pressure. Attempting to remove

the cap, drain the oil or coolant, or replace the

filters may lead to serious burns. Always wait for

the temperature to go down, and follow the

specified procedures when carrying out these

operations.

HAOA050L

Figure 5

To prevent hot coolant from spurting out, shut

down engine, wait for the coolant to cool, then

loosen the cap slowly to relieve the pressure.

To prevent hot oil from spurting out, shut down

engine, wait for the oil to cool, then loosen the

cap slowly to relieve the pressure.

HAOA060L

Figure 6

1-16 Safety

022-00031E Operation and Maintenance Manual

ASBESTOS DUST HAZARD PREVENTION

Asbestos dust can be HAZARDOUS to your

health if it is inhaled. Materials containing

asbestos fiber can be present on work site.

Breathing air that contains asbestos fiber can

ultimately cause serious or fatal lung damage.

To prevent lung damage from asbestos fiber,

observe following precautions;

•

Use a respirator that is approved for

use

asbestos-laden

atmosphere.

ARO1770L

•

Never use compressed air for

Figure 7

cleaning.

•

Use water for cleaning to keep down

the dust.

•

Work on the machine or component

with the wind at your back whenever

possible.

•

Always observe any rules and

regulations related to the work site

and working environment.

INJURY FROM WORK EQUIPMENT

Do not enter or put your hand, arm or any other

part of your body between movable parts, such

as between the work equipment and cylinders,

or between the machine and work equipment.

If the control levers are operated, the clearance

between the machine and the work equipment

will change and this may lead to serious

damage or personal injury.

If going between movable parts is necessary,

always position and secure the work equipment

HDO1010L

so that it cannot move.

Figure 8

022-00031E Operation and Maintenance Manual

Safety 1-17

FIRE EXTINGUISHER AND FIRST AID KIT

As a precaution if any injury or fire should occur,

always do the following.

•

Be sure that fire extinguishers have

been provided and read the labels to

ensure that you know now to use

them. It is recommended that an

appropriately sized (2.27 kg [5 lb] or

larger) multipurpose "A/B/C" fire

extinguisher be mounted in the cab.

Check and service the fire

HDO1009L

extinguisher at regular intervals and

Figure 9

make sure that all work site crew

members are adequately trained in

its use.

•

Provide a first aid kit in the storage compartment and keep another at the work site. Check the

kit periodically and make any additions if necessary.

•

Know what to do in case of injury from fire.

•

Keep emergency numbers for doctor, ambulance service, hospital and fire department near

your telephone.

If the machine catches fire, it may lead to serious personal injury or death. If a fire occurs during operation,

escape from the machine as follows;

•

Turn the starter switch "OFF" and shut down engine.

•

If there is time, use the fire extinguisher to extinguish as much of the fire as possible.

•

Use the handrails and steps to escape from the machine.

The above is the basic method for escaping from the machine, but changing the method may be necessary

according to the conditions, so carry out practice drills at the work site.

PROTECTION FROM FALLING OR FLYING OBJECTS

On work sites where there is danger that falling objects or flying objects may hit the operator's cab select a

guard to match the operating conditions to protect the operator.

Working in mines, tunnels, deep pits or on loose

or wet surfaces could produce danger of falling

rock or hazardous flying objects. Additional

protection for the operator's cab could be

required in the form of a FOPS (Falling Object

Protective Structure) or window guards.

HAOA110L

Figure 10

1-18 Safety

022-00031E Operation and Maintenance Manual

Never attempt to alter or modify any type of

protective structure reinforcement system, by

drilling holes, welding, remounting or relocating

fasteners. Any serious impact or damage to the

system requires a complete integrity

reevaluation. Reinstallation, recertification and/

or replacement of the system may be

necessary.

Contact your Daewoo distributor for available

safety guards and/or recommendations if there

is any danger of getting hit by objects that could

strike the operator's cab. Make sure that all

HAOA100L

other work site crew members are kept well

Figure 11

away from the excavator and safe from possible

hazards.

For breaker operation, install a front guard and apply a laminated coating sheet to the front glass. Contact

your DAEWOO distributor for recommendations.

When carrying out demolition or cutting operation, install a front guard and top guard, and apply a

laminated coating sheet to the front glass.

When working in mines or quarries where there is danger of falling rock, install FOPS (Falling Objects

Protective Structure) and apply a laminated coating sheet to the front glass.

If any glass on the machine is broken, replace it with new glass immediately.

ATTACHMENT PRECAUTIONS

Option kits are available through your dealer. Contact Daewoo for information on available one-way (single-

acting) and two-way (double-acting) piping / valving / auxiliary control kits. Because Daewoo cannot

anticipate, identify or test all of the attachments that owners may wish to install on their machines, please

contact Daewoo for authorization and approval of attachments, and their compatibility with options kits.

ACCUMULATOR

The pilot control system is equipped with an accumulator. For a brief period of time after the engine has

been shut down, the accumulator will store a pressure charge that may enable hydraulic controls to be

activated. Activation of any controls may enable the selected function to operate under force of gravity.

When performing maintenance on the pilot control system, the hydraulic pressure in the system must be

released as describe in “Handling of Accumulator” on page 4-52.

The accumulator is charged with high-pressure nitrogen gas, so it is extremely dangerous if it is handled in

the wrong way. Always observe the following precautions;

•

Do not drill or make any holes in the accumulator or expose it any flame, fire or heat source.

•

Do not weld on the accumulator, or try attaching anything to it.

•

When carrying out disassembly or maintenance of the accumulator, or when disposing of the

accumulator, the charged gas must be properly released. Contact your Daewoo distributor.

•

Wear safety goggles and protective gloves when working on an accumulator. Hydraulic oil under

pressure can penetrate the skin and cause serious injuries.

022-00031E Operation and Maintenance Manual

Safety 1-19

INDOOR VENTILATION

Engine exhaust gases can cause fatal

accidents, and unconsciousness, loss of

alertness, judgement and motor control and

serious injury.

Make sure there is adequate ventilation before

starting the engine in any enclosed area.

You should also be aware of open windows,

doors or ductwork into which exhaust may be

carried, or blown by the wind, exposing others to

danger.

ARO1770L

Figure 12

EMERGENCY EXIT

This machine is equipped with a glass breaking

tool. It is behind the operator seat in the upper

right corner of the cab. This tool can be used in

case of an emergency situation that requires the

breaking of glass to exit from the operator’s

cabin. Grip the handle firmly and use the sharp

point to break the glass.

WARNING!

Figure 13

Protect your eyes when breaking the

glass.

1-20 Safety

022-00031E Operation and Maintenance Manual

BEFORE STARTING ENGINE

WORK SITE PRECAUTIONS

Before starting operations, thoroughly check the area for any unusual conditions that could be dangerous.

Check the terrain and condition of the ground at the work site, and determine the best and safest method of

operation.

Make the ground surface as hard and horizontal as possible before carrying out operations. If there is a lot

of dust and sand on the work site, spray water before starting operations.

If you need to operate on a street, protect

pedestrians and cars by designating a person

for work site traffic duty or by erecting fences

and posting "No Entry" signs around the work

site.

Erect fences, post "No Entry" signs, and take

other steps to prevent people from coming close

to or entering the work site. If people come

close to a moving machine, they may be hit or

caught by the machine, and this may lead to

serious personal injury or death.

ARO1250L

Water lines, gas lines, phone lines and high-

Figure 14

voltage electrical lines may be buried under the

work site. Contact each utility and identify their

locations. Be careful not to damage or cut any of

these lines.

Check the condition of the river bed, and the

depth and flow of the water before operating in

water or crossing a river. NEVER be in water

that is in excess of the permissible water depth.

Any type of object in the vicinity of the boom

could represent a potential hazard, or cause the

operator to react suddenly and cause an

accident. Use a spotter or signal person working

near bridges, phone lines, work site scaffolds, or

other obstructions.

Figure 15

022-00031E Operation and Maintenance Manual

Safety 1-21

Minimum levels of insurance coverage, work

permits or certification, physical barriers around

the work site or restricted hours of operation

may be mandated by governing authorities.

There may also be regulations, guidelines,

standards or restrictions on equipment that may

have to be followed for local requirements.

There may also be regulations related to

performing certain kinds of work. If there is any

question about whether your machine and work

site complies with the applicable standards and

regulations contact your local authorities and

agencies.

Figure 16

Avoid entering soft ground. It will be difficult for

the machine to escape.

Avoid operating your machine to close to the edge of cliffs, overhangs, and deep ditches. The ground may

be weak in such areas. If the ground should collapse, the machine could fall or tip over and this could result

in serious injury or death.

Remember that the soil after heavy rain, blasting or after earthquakes, is weakened in these areas.

Earth laid on the ground and the soil near ditches is loose. It can collapse under the weight of vibration of

your machine and cause your machine to tip over.

Install the head guard (FOPS) if working in areas where there is danger of falling rocks.

CHECKS BEFORE STARTING ENGINE

Every day before starting the engine for the first time, carry out the following checks. If these checks are

not carried out properly, there is danger of serious injury.

Completely remove all wood chips, leaves, grass, paper and other flammable materials accumulated in the

engine compartment and around the battery. They could cause a fire. Remove any dirt from the window

glass, mirrors, handrails, and steps.

Do not leave tools or spare parts laying around in the operator's compartment. The vibration of the

machine when traveling or during operations may cause them to fall and damage or break the control

levers or switches. They may also get caught in the gap of the control levers and cause the work equipment

to malfunction or move dangerously. This may lead to unexpected accidents.

Check the coolant level, fuel level, and hydraulic tank oil level, and check for clogged air cleaner and

damage to the electrical wiring.

Adjust the operator's seat to a position where it is easy to operate the machine, and check the seat belt and

mounts for damage and wear.

Check the operation of the gauges and the angle of the mirrors, and check that the safety lever is in

"LOCKED" position.

If any abnormalities are found in the above checks, carry out repairs immediately.

1-22 Safety

022-00031E Operation and Maintenance Manual

ENGINE STARTING

Walk around your machine before getting in the operator’s cab. Look for evidence of leaking fluid, loose

fasteners, misaligned assemblies or any other indications of possible equipment hazard.

All equipment covers and machinery safety guards must be in place, to protect against injury while the

machine is being operated.

Look around the work site area for potential hazards, people or properly that could be at risk while

operation is in progress.

NEVER start the engine if there is any indication that maintenance or service work is in progress, or if a

warning tag is attached to controls in the cab.

A machine that has not been used recently, or is being operated in extremely cold temperatures, could

require a warm-up or maintenance service before start-up.

Check gauges and monitor displays for normal operation before starting the engine. Listen for unusual

noises and remain alert for other potentially hazardous conditions at the start of the work cycle.

Do not short circuit the starting motor to start the engine. This is not only dangerous, but may also damage

the machine.

When starting the engine, sound the horn as an alert.

Start and operate the machine only while seated.

BEFORE OPERATING MACHINE

If checks are not carried out properly after starting the engine, it may result in a delay in discovering

abnormalities in the machine, and this may lead to personal injury or damage to the machine.

Carry out the checks in an open area where there are no obstructions. Do not let anyone near the machine

when carrying out the checks.

•

Check the operating condition of the equipment, and the actuation of the bucket, arm, boom,

travel, and swing systems.

•

Check the machine for any abnormal noise, vibration, heat, smell, or abnormality with the

gauges. Check also for leakage of air, oil, and fuel.

•

If any abnormality is found, repair the problem immediately. If the machine is used without

repairing the problems, it may lead to unexpected injury or failure.

•

Clear all personnel from directly around machine and from the area.

•

Clear all obstacles from the machine's path. Beware of hazards.

•

Be sure that all windows are clean. Secure the doors and the windows in the open position or in

the shut position.

•

Adjust the rear view mirrors for best visibility close to the machine. Make sure that the horn, the

travel alarm (if equipped), and all other warning devices are working properly.

•

Fasten the seat belt securely.

•

Warm up the engine and hydraulic oil before operating machine.

•

Before moving the machine, check the position of undercarriage. The normal travel position is

with idler wheels to the front under the cab and the drive sprockets to the rear. When the

undercarriage is in the reversed position, the travel controls must be operated in opposite

directions.

022-00031E Operation and Maintenance Manual

Safety 1-23

MACHINE OPERATION

WHEN SWINGING OR CHANGING

DIRECTION OF TRAVEL

Before operating the machine or the work

equipment, always observe the following

precautions to prevent serious injury or death.

•

When changing the direction of travel

from forward to reverse or from

reverse to forward, reduce speed

early and stop the machine before

changing the direction of travel.

•

Sound the horn to warn people in the

HAOA190L

area.

Figure 17

•

Check that there is no one in the area

around the machine. There are blind spots behind the machine, so if necessary, swing the

upper structure to check that there is no one behind the machine before traveling in reverse.

•

When operating in areas that may be hazardous or have poor visibility, designate a person to

direct work site traffic.

•

Ensure that no unauthorized person can come within the turning radius or direction of travel.

Be sure to observe the above precautions even if a travel alarm or mirrors are installed.

TRAVEL PRECAUTIONS

Never turn the starting switch to the "O" (OFF) position when traveling. It is dangerous if the engine stops

when the machine is traveling. It will be impossible to operate the steering.

Attachment control levers should not be operated while traveling.

Do not change selected travel mode (FAST/SLOW) while traveling.

Fold in work equipment so that the outer end of the boom is as close to the machine as possible, and is 40-

50 cm (16 - 20 in) above ground.

Never travel over obstacles or slopes that will cause the machine to tilt severely. Travel around any slope or

obstacle that causes the machine to tilt 10 degrees or more to the right or left, or 30 degrees or more from

front to rear.

Do not operate the steering suddenly. The work equipment may hit the ground and cause the machine to

lose its balance, and this may damage the machine or structures in the area.

When traveling on rough ground, travel at low speed, and avoid sudden changes in direction.

Always keep to the permissible water depth. Permissible water depth is to the centerline of the upper track

rollers.

When traveling over bridges or structures on private land, check first that the bridge or structure can

withstand the weight of the machine. When traveling on public roads, check with the local authorities and

follow their instructions.

1-24 Safety

022-00031E Operation and Maintenance Manual

TRAVEL POSTURE

INCORRECT

40 ~ 50 cm (16 ~ 20 in.)

ARO1280L

Figure 18

TRAVELING ON SLOPES

Never jump onto a machine that is running away to stop it. There is danger of serious injury.

Traveling on slopes could result in the machine tipping over or slipping.

On hills, banks or slopes, carry the bucket approximately 20 - 30 cm (8 - 12 in) above the ground. In case

of an emergency, quickly lower the bucket to the ground to help stop the machine.

HAOB610L

HAOB620L

Figure 19

Figure 20

Do not travel on grass, fallen leaves, or wet steel

plates. Even slight slopes may cause the

machine to slip to the side, so travel at low

speed and make sure that the machine is

always traveling directly up or down the slope.

Avoid changing the direction of travel on a slope.

This could result in tipping or side slipping of the

machine.

When possible, operate the machine up slopes

and down slopes. Avoid operating the machine

across the slope, when possible.

Figure 21

022-00031E Operation and Maintenance Manual

Safety 1-25

PROHIBITED OPERATIONS

Do not dig the work face under an overhand.

This may cause the overhand to collapse and

fall on top of the machine.

Figure 22

Do not carry out deep digging under the front of

the machine. The ground under the machine

may collapse and cause the machine to fall.

Working heavy loads over loose, soft ground or

uneven, broken terrain can cause dangerous

side load conditions and possible tipover and

injury. Travel without a load or a balanced load

may also be hazardous.

Never relay on lift jacks or other inadequate

supports when work is being done. Block tracks

fore and aft to prevent any movement.

ARO0950L

When using the machine, to prevent accidents

Figure 23

caused by damage to the work equipment and

overturning because of an excessive load, do

not use the machine in excess of its ability (in

terms of the maximum load and stability

determined by the structure of the machine).

PRECAUTIONS FOR OPERATION

Be careful not to go close to the edge of a cliff

by mistake.

Use the machine only for its main purpose.

Using it for other purposes will cause failures.

To ensure an ample view, do as follows:

•

When working in dark areas, attach

working lights and front lights to the

machine. If necessary, set up lighting

at the work site.

•

Stop operations when the visibility is

Figure 24

poor, such as in fog, mist, snow, and

rain. Wait for the visibility to improve

to a level which causes no problems

for the operation.

1-26 Safety

022-00031E Operation and Maintenance Manual

To avoid hitting the work equipment, always do the following;

•

When working in tunnels, on bridges, under electric wires, or when parking the machine or

carrying out other operations in places with limited height, be extremely careful not to hit the

bucket or other parts.

•

To prevent collisions, operate the machine at a safe speed when working in confined spaces,

indoors, or in crowded areas.

•

Do not pass the bucket over the heads of workers or over the operator's compartment of dump

truck.

AVOID HIGH-VOLTAGE CABLES

Serious injury or death can result from contact

or proximity to high-voltage electric lines. The

bucket does not have to make physical contact

with power lines for current to be transmitted.

Use a spotter and hand signals to stay away

from power lines not clearly visible to the

operator.

VOLTAGE

MINIMUM SAFE

DISTANCE

HAOA230L

6.6 kV

3 m (9’ 10")

Figure 25

33.0 kV

4 m (13’ 1")

66.0 kV

5 m (16’ 5")

154.0 kV

8 m (26’ 3")

275.0 kV

10 m (32’ 10")

Use these minimum distances as a guideline only. Depending upon the voltage in the line and atmospheric

conditions, strong current shocks can occur with the boom or bucket as far away as 4 - 6 m (13 - 20 ft.)

from the power line. Very high voltage and rainy weather could further decrease that safety margin.

NOTE: Before starting any type of operation near power lines (either above ground or buried

cable-type), you should always contact the power utility directly and work out a safety plan

with them.

OPERATE CAREFULLY ON SNOW, ICE AND IN VERY COLD TEMPERATURES

In icy cold weather avoid sudden travel movements and stay away from even slight slopes. The machine

could skid off to one side very easily.

Snow accumulation could hide or obscure potential hazards. Use care while operating or while using the

machine to clear snow.

Warming up the engine for a short period may be necessary, to avoid operating with sluggish or reduced

working capacity. The jolting shocks and impact loads caused by bumping or bottoming the boom or

attachment are more likely to cause severe stress in very cold temperatures. Reducing work cycle rate and

work load may be necessary.

When the temperature rises, frozen road surfaces become soft, so the machine travel becomes unstable.

In cold weather, do not touch metal surfaces with your bare hands. If you touch a metal surface in

extremely cold weather, your skin may freeze to the metal surface.

022-00031E Operation and Maintenance Manual

Safety 1-27

OPERATIONS ON SLOPES

When working on slopes. there is danger that

the machine may lose its balance and turn over,

when swinging, or when work equipment is

operated. Always carry out these operations

carefully.

Do not swing the work equipment from the uphill

side to the downhill side when the bucket is

loaded. This operation is dangerous.

If the machine has to be used on a slope, pile

the soil to make a platform that will keep the

HAOB600L

machine as horizontal as possible.

Figure 26

In addition, lower the bucket as far as possible,

keep it pulled into the front, and keep the swing

speed as low as possible.

PARKING MACHINE

Avoid making sudden stops, or parking the machine wherever it happens to be at the end of the work day.

Plan ahead so that the excavator will be on firm, level ground away from traffic and away from high walls,

cliff edges and any area of potential water accumulation or runoff. If parking on inclines is unavoidable,

block the crawler tracks to prevent movement. Lower the bucket or other working attachment completely to

the ground, or to an overnight support saddle. There should be no possibility of unintended or accidental

movement.

When parking on public roads, provide fences, signs, flags, or lights, and put up any other necessary signs

to ensure that passing traffic can see the machine clearly, and park the machine so that the machine, flags,

and fences do not obstruct traffic.

After the front attachment has been lowered to an overnight storage position and all switches and

operating controls are in the "OFF" position, the safety lock lever must be set to the "LOCKED" position.

This will disable all pilot circuit control functions.

Always close the door of the operator’s compartment.

NEVER LET ANYONE RIDE ON

ATTACHMENT

Never let anyone ride on any work attachment,

such as the bucket, crusher, grapple, or

clamshell (grab bucket). There is a danger of the

person falling and suffering serious injury.

ARO1310L

Figure 27

1-28 Safety

022-00031E Operation and Maintenance Manual

MAINTENANCE

WARNING TAG

Alert others that service or maintenance is

being performed and tag operator’s cab controls

- and other machine areas if required - with a

warning notice. OSHA mandated control lever

WARNING

lockout can be made with any OSHA certified

DO NOT OPERATE

lockout device and a length of chain or cable to

keep the left hand control console in the fully

when performing inspection

raised, non-active position.

or maintenance

Warning tags, for controls are available from

190-00695

Daewoo distributors.

ARO1320L

Figure 28

CLEAN BEFORE INSPECTION OR

MAINTENANCE

Clean the machine before carrying out inspection and maintenance. This prevents dirt from getting into the

machine and also ensures safety during maintenance.

If inspection and maintenance are carried out when the machine is dirty, it will become more difficult to

locate the problems, and also there is danger that you may get dirt or mud in your eyes or that you may slip

and injure yourself.

When washing the machine, do the following;

•

Wear shoes with non-slip soles to prevent yourself from slipping and falling on wet places.

•

Wear safety glasses and protective clothing when washing the machine with high-pressure

steam.

•

Take action to prevent touching high-pressure water and cutting your skin or having mud fly into

your eyes.

•

Do not spray water directly on electrical components (sensors, connector) (1, Figure 29). If

water gets into the electrical system, there is danger that it will cause defective operation and

malfunction.

Figure 29

Pick up any tools or hammers that are laying in the work place, wipe up any grease or oil or any other

slippery substances, and clean the area to make it possible to carry out the operation in safety. If the work

place is left untidy, you may trip or slip and suffer injury.

022-00031E Operation and Maintenance Manual

Safety 1-29

PROPER TOOLS

Use only tools suited to the task. Using

damaged, low qualify, faulty, or makeshift tools

could cause personal injury. There is danger

that pieces from, chisels with crushed heads, or

hammers, may get into your eyes and cause

blindness.

HDO1037L

Figure 30

USE OF LIGHTING

When checking fuel, oil, battery electrolyte, or

window washing fluid, always use lighting with

anti-explosion specifications. If such lighting

equipment is not used, there is danger of

explosion.

If work is carried out in dark places without

using lighting, it may lead to injury, so always

use proper lighting.

Even if the place is dark, never use a lighter or

flame instead of lighting. There is danger of fire.

HDO1040L

There is also danger that the battery gas may

Figure 31

catch fire and cause and explosion.

FIRE PREVENTION AND EXPLOSION PREVENTION

All fuels, most lubricants and some coolant mixtures are flammable. Leaking fuel or fuel that is spilled onto

hot surfaces or onto electrical components can cause a fire.

Store all fuels and all lubricants in properly marked containers and away from all unauthorized persons.

Store oily rags and other flammable material in a protective container.

Do not smoke while you refuel the machine or while you are in a refueling area.

Do not smoke in battery charging areas or in areas the contain flammable material.

Clean all electrical connections and tighten all electrical connections. Check the electrical wires daily for

wires that are loose of frayed. Tighten all lose electrical wires before you operate the machine. Repair all

frayed electrical wires before you operate the machine.

Remove all flammable materials before they accumulate on the machine.

Do not weld on pipes or on tubes that contain flammable fluids. Do not flame cut on pipes or on tubes that

contain flammable fluids. Before you weld on pipes or on tubes or before you flame cut on pipes or on

tubes, clean the pipes or tubes thoroughly with a nonflammable solvent.

1-30 Safety

022-00031E Operation and Maintenance Manual

BURN PREVENTION

When checking the radiator coolant level, shut down engine, let the engine and radiator cool down, then

check the coolant recovery tank. If the coolant level in the coolant recovery tank is near the upper limit,

there is enough coolant in the radiator.

Loosen the radiator cap gradually to release the internal pressure before removing the radiator cap.

ARO1360L

Figure 32

If the coolant level in the coolant recovery tank is below the lower limit, add coolant.

Cooling system conditioner contains alkali. Alkali can cause personal injury. Do not allow alkali to contact

the skin, the eyes, or the mouth.

Allow cooling system components to cool before you drain the cooling system.

Hot oil and hot components can cause personal injury. Do not allow hot oil or hot components to contact

the skin.

Remove the hydraulic tank filter plug only after the engine has been stopped. Make sure that the hydraulic

tank filter plug is cool before you remove it with your bare hand. Remove the hydraulic tank filter plug slowly

to relieve pressure.

Relieve all pressure in the hydraulic oil system, in the fuel system, or in the cooling system before you

disconnect any lines, fittings, or related items.

Batteries give off flammable fumes that can explode.

Do not smoke while you are checking the battery electrolyte levels.

Electrolyte is an acid. Electrolyte can cause personal injury. Do not allow electrolyte to contact the skin or

the eyes.

Always wear protective glasses when you work on batteries.

022-00031E Operation and Maintenance Manual

Safety 1-31

WELDING REPAIRS

When carrying out welding repairs, carry out the welding in a properly equipped place. The welding should

be performed by a qualified worker. During welding operations, there is the danger of, generation of gas,

fire, or electric shock, so never let an unqualified worker do welding.

The qualified welder must do the following;

•

To prevent explosion of the battery, disconnect the battery terminals and remove batteries.

•

To prevent generation of gas, remove the paint from the location of the weld.

•

If hydraulic equipment, piping or places close to them are heated, a flammable gas or mist will

be generated and there is danger of it catching fire. To avoid this, never subject these places to

heat.

•

Do not weld on pipes or on tubes that contain flammable fluids. Do not flame cut on pipes or on

tubes that contain flammable fluids. Before you weld on pipes or on tubes or before you flame

cut on pipes or on tubes, clean the pipes or tubes thoroughly with a nonflammable solvent.

•

If heat is applied directly to rubber hoses or piping under pressure, they may suddenly break so

cover them with a fireproof covering.

•

Wear protective clothing.

•

Make sure there is good ventilation.

•

Remove all flammable objects and provide a fire extinguisher.

WARNING FOR COUNTERWEIGHT AND FRONT ATTACHMENT REMOVAL

DANGER!

Daewoo warns any user, that the removal of

the counterweight from the machine, front

attachment or any other part, may affect

the stability of the machine. This could

cause unexpected movement, resulting in

death or serious injuries. Daewoo is not

liable for any misuse.

Never remove the counterweight or front

attachment unless the upper structure is

in-line with the lower structure.

Never rotate the upper structure once the

counterweight or front attachment has

been removed.

HAAD4060

Figure 33

1-32 Safety

022-00031E Operation and Maintenance Manual

PRECAUTIONS FOR REMOVAL,

INSTALLATION, AND STORAGE OF

ATTACHMENTS

Before starting removal and installation of

attachments, decide the team leader.

Do not allow anyone except the authorized

workers close to the machine or attachment.

Place attachments that have been removed

from the machine in a safe place so that they do

not fall. Put up a fence around the attachments

and take other measures to prevent

HDO1041L

unauthorized persons from entering.

Figure 34

PRECAUTIONS WHEN WORKING ON

MACHINE

When carrying out maintenance operations on

the machine, keep the area around your feet

clean and tidy to prevent you from falling.

Always do the following;

•

Do not spill oil or grease.

•

Do not leave tools laying about.

•

Watch your step when walking.

Never jump down from the machine. When

ARO1380L

getting on or off the machine, use the steps and

Figure 35

handrails, and maintain a three-point contact

(both feet and one hand or both hands and one

foot) to support yourself securely.

If the job requires it, wear protective clothing.

To prevent injury from slipping or falling, when

working on the hood or covers, never use any

part except the inspection passage fitted with

non-slip pads.

LOCK INSPECTION COVERS

When carrying out maintenance with the inspection cover open, lock the cover securely in position with the

lock bar.

If maintenance work is carried out with the inspection cover open but not locked, there is danger that it may

suddenly close and cause injury if there is a gust of wind.

022-00031E Operation and Maintenance Manual

Safety 1-33

CRUSHING PREVENTION AND CUTTING PREVENTION

You should always have at least two people working together if the engine must be run during service. One

person needs to remain in the operator’s seat, ready to work the controls or stop the machine and shut off

the engine.

Unless you are instructed otherwise, never attempt adjustments while the machine is moving or while the

engine is running.

Stay clear of all rotating parts and moving parts.

Keep objects away from moving fan blades. The fan blades will throw objects and the fan blades can cut

objects.

Do not use a wire rope cable that is kinked or flayed. Wear gloves when you handle a wire rope cable.

When you strike a retainer pin, the retainer pin might fly out. The loose retainer pin can injure personnel.

Make sure that the area is clear of people when you strike a retainer pin. To avoid injury to your eyes, wear

protective glasses when you strike a retainer pin.

TRACK TENSION ADJUSTMENTS REQUIRE

CAUTION

Never turn out the track tension grease fitting

nut. To release pressure from the crawler frame

track tension assembly, you should NEVER

attempt to disassemble the track adjuster or

attempt to remove the grease fitting or valve

assembly.

Keep your face and body away from the valve.

Refer to the track adjustment procedure in the

Operator and Maintenance Manual or Shop

HAOA110L

Manual.

Figure 36

SUPPORTS AND BLOCKING FOR WORK

EQUIPMENT

Do not allow weight or equipment loads to

remain suspended. Lower everything to the

ground before leaving the operator’s seat. Do

not use hollow, cracked or unsteady, wobbling

weight supports. Do not work under any

equipment supported solely by a lift jack.

HDO1042L

Figure 37

1-34 Safety

022-00031E Operation and Maintenance Manual

ACTION WHEN ABNORMALLY IS FOUND DURING INSPECTION

If any abnormality is found during inspection, always carry out repairs. In particular, if the machine is used

when there are still problems with the brake or work equipment systems, it may lead to serious injury.

If necessary depending on the type of failure, please contact your Daewoo distributor for repairs.

PRECAUTIONS WITH HIGH PRESSURE LINE, TUBES AND HOSES

When inspecting or replacing high-pressure piping or hoses, check that the pressure has been released

form the circuit. Failure to release the pressure may lead to serious injury. Always do the following;

•

Wear protective glasses and leather gloves.

•

Fluid leaks from hydraulic hoses or pressurized components can be difficult to see but

pressurized oil has enough force to pierce the skin and cause serious injury. Always use a piece

of wood or cardboard to check for suspected hydraulic leaks. Never use your hands or expose

your fingers.

•

Do not bend high pressure lines. Do not strike high pressure lines. Do not install lines, tubes or

hoses that are bent or damaged.

•

Make sure that all clamps, guards and heat shields are installed correctly to prevent vibration,

rubbing against other parts, and excessive heat during operation.

- If any of the following conditions are found, replace the part.

- Damage or leakage from hose end.

- Wear, damage, cutting of covering, or exposure of strengthening wire layer.

- Cover portion is swollen in places.

- There is twisting or crushing at movable parts of hose.

- Foreign material is embedded in the covering.

- Hose end is deformed.

NOTE: Refer to “Hose In-service Lifetime Limit (European Standard ISO 8331 and EN982 CEN)”

on page 4-49, for additional European regulations.

HAOA420L

Figure 38

022-00031E Operation and Maintenance Manual

Safety 1-35

WASTE MATERIALS

Physical contact with used motor oil may pose a

health risk. Wipe oil from your hands promptly

and wash off any remaining residue.

Used motor oil is an environmental contaminant

and may only be disposed of at approved

collection facilities. To prevent pollution of the

environment, always do the following;

•

Never dump waste oil in a sewer

system, rivers, etc.

HAOA470L

•

Always put oil drained from your

Figure 39

machine in containers. Never drain

oil directly onto the ground.

•

Obey appropriate laws and

regulations when disposing of

harmful materials such as oil, fuel,

solvent, filters, and batteries.

1-36 Safety

022-00031E Operation and Maintenance Manual

BATTERY

BATTERY HAZARD PREVENTION

Battery electrolyte contains diluted sulfuric acid and batteries generate hydrogen gas. Hydrogen gas is

highly explosive, and mistakes in handling them can cause serious injury or fire. To prevent problems,

always do the following;

•

Do not smoke or bring any flame near the battery.

•

When working with batteries, ALWAYS wear safety glasses and rubber gloves.

•

If you spill battery electrolyte on yourself or your clothes, immediately flush the area with water.

•

If battery electrolyte gets into your eyes, flush them immediately with large quantities of water

and see a doctor at once.

•

If you accidentally drink battery electrolyte, drink a large quantity of water or milk, raw egg or

vegetable oil. Call a doctor or poison prevention center immediately.

•

When cleaning the top surface of the battery, wipe it with a clean, damp cloth. Never use

gasoline, thinner, or any other organic solvent or detergent.

•

Tighten the battery caps securely.

•

If the battery electrolyte is frozen, do not charge the battery or start the engine with power from

another source. There is danger that the battery may catch fire.

•

When charging the battery or starting with power from another source, let the battery electrolyte

melt and check that there is no leakage of battery electrolyte before starting the operation.

•

Always remove the battery from the machine before charging.

Figure 40

022-00031E Operation and Maintenance Manual

Safety 1-37

BOOST STARTING OR CHARGING ENGINE

BATTERIES

If any mistake is made in the method of

connecting the booster cables, it may cause an

explosion or fire. Always do the following;

•

Turn off all electrical equipment

before connecting leads to the

battery. This includes electrical

switches on the battery charger or

boost starting equipment.

•

When boost-starting from another

HAOA310L

machine or vehicle do not allow the

Figure 41

two machines to touch. Wear safety

glasses or goggles while required

battery connections are made.

•

24 volt battery units consisting of two series-connected twelve volt batteries have a cable

connecting one positive terminal on one of the 12 volt batteries to a negative terminal on the

other battery. Booster or charger cable connections must be made between the non-series-

connected positive terminals and between the negative terminal of the booster battery and the

metal frame of the machine being boosted or charged. Refer to the procedure and illustration in

“Starting Engine With a Booster Cable” on page 3-8 of this manual.

•

Connect positive cable first when installing cables and disconnect the negative cable first when

removing them. The final cable connection, at the metal frame of the machine being charged or

boost-started, should be as far away from the batteries as possible.

1-38 Safety

022-00031E Operation and Maintenance Manual

TOWING

PRECAUTIONS WHEN TOWING

If any mistake is made in the method of

selecting or inspecting the towing wire or in the

method of towing, it may lead to serious

personal injury. Always do the following;

•

Always use the method of towing

given in this Operation and

Maintenance Manual. Do not use any

other method.

•

Use leather gloves when handling

the wire rope.

•

When carrying out the preparation

work for towing with two or more

workers, determine the signals to use

and follow these signals correctly.

•

Always fit the towing rope to the left

and right hooks and secure in

position.

•

If the engine on the problem machine

will not start or there is a failure in the

brake system. always contact your

HAOC910L

Daewoo distributor.

Figure 42

•

Never go between the towing

machine and the towed machine

during the towing operation.

•

It is dangerous to carry out towing on

slopes, so select a place where the

slope is gradual. If there is no place

where the slope is gradual, carry out

operations to reduce the angle of the

slope before starting the towing

operation.

•

When towing a problem machine,

always use a wire rope with a

sufficient towing capacity.

•

Do not use a frayed, kinked rope or a

rope with any loss of diameter.

•

Do not use the light-weight towing

hook for towing another machine.

022-00031E Operation and Maintenance Manual

Safety 1-39

SHIPPING AND TRANSPORTATION

OBEY STATE AND LOCAL OVER-THE-ROAD REGULATIONS

Check state and local restrictions regarding weight, width and length of a load before making any other

preparation for transport.

The hauling vehicle, trailer and load must all be in compliance with local regulations governing the intended

shipping route.

Partial disassembly or tear-down of the excavator may be necessary to meet travel restrictions or particular

conditions at the work site. See the Shop Manual for information on partial disassembly.

Refer to the Transportation and Shipping section of this Operation and Maintenance Manual for information

on loading, unloading and towing.

1-40 Safety

022-00031E Operation and Maintenance Manual

EXCAVATOR RATED LIFT CAPACITY TABLES

WARNING!

All rated lift capacities are based on the machine and the load both remaining level at all times.

DO NOT EXCEED THE RATED LIFT CAPACITY. Lifting loads greater than those shown in the

rated capacity tables can cause catastrophic equipment failure and/or structural collapse of the

machine.

To operate safely the excavator should be on a firm, level and uniformly supporting surface. The operator is

expected to make due allowance for all specific work site and lift-related conditions, and respond to

changes in those conditions that could pose a hazard. The following could all cause hazardous conditions

and accidents or injuries:

•

Soft or uneven ground.

•

Off-level terrain.

•

Side loads.

•

Modifications or poor maintenance of the excavator.

•

Failure to lift squarely over the end or over the side of the machine.

When a load is in the air, the operator must remain alert.

•

Avoid side loads that may be caused by uneven slings, traveling with the load or swinging too

quickly.

•

The load can become unbalanced if the hookline is twisted and starts to rotate. If the surface

area of the load is large enough, wind gusts can create side loads.

•

Keep the bucket hook point directly over the load. Taglines on opposite sides of the load can

help maintain greater stability against side loads and wind gusts.

Avoid traveling with a suspended load. Before swinging (or if required, traveling), bring the load into an arm

position (radius and height) that has a safer weight capacity rating and adequate movement clearance. The

operator and all work site personnel should be thoroughly familiar with safety instructions and procedures

within this Operation and Maintenance Manual.

The following weight loads are in compliance with SAE (J1097) and ISO applicable, recommended

standards for hydraulic excavators performing lifting operation on a firm supporting surface. An asterisk (*)

next to the lift rating indicates rated load does not exceed 87% of hydraulic capacity. All other ratings have

been determined not to exceed 75% of tipping capacity.

DO NOT attempt to lift or hold any load that exceeds rated load capacity at the specified distances (from

the machine’s rotation centerline and height - see "lift radius" and "lift height" in the reference drawing,

Figure 43).

022-00031E Operation and Maintenance Manual

Safety 1-41

Centerline

of Rotation

Lifting Radius

Lifting

Point

Lifting

Point

Height

Ground Line (Machine Supporting Surface)

AYO0530L

Figure 43

The weight of slings and any auxiliary lifting device (and/or the weight difference of any attachment heavier

than standard configuration) must be deducted from the rated lift capacity to determine allowable net lifting

load. The lift point should be on the back of the bucket, as shown in Figure 43.

IMPORTANT

Select the Digging Mode switch on the Instrument Panel before using the excavator for lifting

work. Engine and hydraulic oil should both be fully warmed up to operating temperature before

starting a lift.

1-42 Safety

022-00031E Operation and Maintenance Manual

TRACK WIDTH : 3.2m (10' 6") STD TRACK

BOOM

: 5.9m (19' 4")

ARM

: 3.0m (9' 10")

BUCKET

SAE 1.1m3

(CECE 0.95m3)

SHOE

: 600mm (24")

UNIT

: 1,000 kg (1,000 lb)

: RATING OVER FRONT

: RATING OVER SIDE OR 360 degree

METRIC

A(m)

MAX. REACH

A(m)

B(m)

*4.46

*3.60

7.33

*5.03

*3.61

7.94

*5.30

5.01

*4.94

3.99

*3.68

3.67

8.39

*6.16

*5.71

4.92

*5.43

3.94

*3.81

3.41

8.70

*14.32

*10.07

*8.07

*6.93

6.12

*6.21

4.81

*5.74

3.87

*4.00

3.25

8.88

*6.75

*12.07

11.10

*9.28

7.84

*7.71

5.94

*6.72

4.69

5.79

3.80

*4.26

3.17

8.95

*5.86

*13.51

10.73

*10.29

7.60

*8.40

5.79

7.04

4.59

5.72

3.74

*4.61

3.16

8.90

(GROUND)

*7.18

*14.28

10.52

*10.97

7.44

8.86

5.67

6.95

4.51

5.66

3.69

4.94

3.22

8.74

*6.21

*9.31

*14.50

10.43

*11.31

7.35

8.78

5.60

6.90

4.46

5.63

3.66

5.18

3.37

8.46

*8.78

*12.00

*14.28

10.43

*11.29

7.32

8.75

5.57

6.88

4.44

5.63

3.66

5.59

3.63

8.04

*11.60

*15.36

*13.63

10.49

*10.91

7.35

8.77

5.58

6.90

4.46

6.28

4.08

7.46

*14.93

*15.90

*12.47

10.61

*10.05

7.43

*8.19

5.65

*7.04

4.84

6.68

*13.29

*10.56

*8.44

7.58

*7.24

6.38

5.62

FEET

A(ft)

MAX. REACH

A(ft)

B(ft)

*8.02

22.48

*9.76

9.66

*7.95

25.89

*12.62

*11.78

9.52

*8.23

7.81

28.01

*30.44

*19.19

*15.01

13.19

*12.95

9.26

*8.80

7.18

29.11

*13.84

*23.98

19.51

*17.47

12.62

13.69

8.97

*9.73

6.95

29.33

(GROUND)

*16.40

*26.87

18.80

19.05

12.21

13.45

8.75

10.90

7.10

28.67

-5

*23.98

*27.59

18.55

18.83

12.01

13.33

8.65

11.84

7.70

27.08

-10

*34.86

*26.28

18.63

18.85

12.03

13.94

9.05

24.36

-15

*31.68

*22.37

19.01

*15.89

12.33

*15.81

12.28

20.06

1. RATINGS ARE BASED ON SAE J1097

2. LOAD POINT IS THE HOOK ON THE BACK OF THE BUCKET.

3. * RATED LOADS ARE BASED ON HYDRAULIC CAPACITY.

4. RATED LOADS DO NOT EXCEED 87% OF HYD. CAPACITY OR 75% OF TIPPING CAPACITY.

AYO0020L

022-00031E Operation and Maintenance Manual

Safety 1-43

TRACK WIDTH

: 3.2m (10' 6") STD TRACK

BOOM

: 5.9m (20' 6")

ARM

: 2.5m (8' 2")

BUCKET

SAE 1.29m³

(CECE1.1m3

)

SHOE

: 600mm (24")

UNIT

: 1,000 kg (1,000 lb)

: RATING OVER FRONT

: RATING OVER SIDE OR 360 degree

METRIC

A(m)

MAX. REACH

A(m)

B(m)

*4.88

6.65

*5.46

4.94

*4.91

4.56

7.32

*5.96

*5.68

4.88

*5.04

4.05

7.80

*7.48

*6.60

6.16

*6.05

4.80

*5.73

3.83

*5.26

3.73

8.13

*11.10

*8.67

7.95

*7.32

5.98

*6.50

4.70

5.76

3.78

5.39

3.53

8.33

*12.90

10.82

*9.78

7.67

*8.04

5.82

*6.96

4.59

5.70

3.72

5.27

3.43

8.40

*14.00

10.53

*10.63

7.47

*8.64

5.68

6.95

4.50

5.64

3.66

5.27

3.42

8.35

(GROUND)

*6.84

*14.42

10.40

*11.14

7.34

8.78

5.59

6.88

4.44

5.60

3.63

5.41

3.51

8.18

*6.88

*10.06

*14.35

10.37

*11.29

7.28

8.72

5.53

6.84

4.40

5.72

3.70

7.87

*10.27

*13.71

*13.88

10.41

*11.09

7.28

8.71

5.53

6.85

4.40

6.27

4.05

7.42

*13.90

*16.43

*12.97

10.50

*10.48

7.34

*8.58

5.57

7.23

4.65

6.79

*18.26

*14.36

*11.50

10.66

*9.31

7.45

*7.57

5.78

5.92

*9.05

*7.66

4.69

FEET

A(ft)

MAX. REACH

A(ft)

B(ft)

*10.81

10.2

23.83

*13.60

13.42

*12.50

9.26

*11.30

8.58

26.12

*20.82

20.19

*15.86

12.89

*13.51

9.04

11.91

7.80

27.30

*25.12

19.1

*18.09

12.37

13.50

8.79

11.58

7.54

27.53

(GROUND)

*15.67

*27.25

18.55

18.86

12.03

13.30

8.61

11.93

7.73

26.83

-5

*26.76

*27.23

18.44

18.72

11.90

13.26

8.57

13.16

8.51

25.12

-10

*35.61

*25.16

18.62

*18.49

12.00

16.07

10.34

22.16

-15

*27.79

*19.98

19.14

*16.89

15.36

17.31

1. RATINGS ARE BASED ON SAE J1097

2. LOAD POINT IS THE HOOK ON THE BACK OF THE BUCKET.

3. * RATED LOADS ARE BASED ON HYDRAULIC CAPACITY.

4. RATED LOADS DO NOT EXCEED 87% OF HYD. CAPACITY OR 75% OF TIPPING CAPACITY.

AYO0030L

1-44 Safety

022-00031E Operation and Maintenance Manual

TRACK WIDTH

: 3.2m (10' 6") STD TRACK

BOOM

: 5.9m (20' 6")

ARM

: 3.5m (11' 6")

BUCKET

: SAE

0.93m³(CECE 0.8m3

)

SHOE

: 600mm (24")

UNIT

: 1,000 kg (1,000 lb)

: RATING OVER FRONT

: RATING OVER SIDE OR 360 degree

METRIC

A(m)

MAX. REACH

A(m)

B(m)

*3.09

7.88

*4.13

4.09

*3.09

8.45

*4.89

*4.84

4.05

*3.14

8.87

*5.32

4.97

*5.10

3.98

*3.79

3.25

*3.23

3.14

9.16

*7.40

*6.45

6.18

*5.84

4.85

*5.44

3.90

*4.55

3.20

*3.37

3.00

9.34

*10.95

*11.12

*8.68

7.92

*7.28

5.99

*6.39

4.72

*5.80

3.82

4.81

3.15

*3.56

2.93

9.40

*7.29

*12.81

10.81

*9.80

7.65

*8.04

5.81

*6.91

4.60

5.72

3.74

4.76

3.10

*3.82

2.91

9.36

(GROUND)

*3.85

*7.57

*13.88

10.53

*10.63

7.45

*8.65

5.67

6.95

4.50

5.65

3.68

4.72

3.07

*4.17

2.96

9.20

*5.82

*9.03

*14.37

10.39

*11.13

7.32

8.76

5.57

6.88

4.44

5.61

3.63

*4.65

3.08

8.93

*7.93

*11.13

*14.38

10.34

*11.28

7.27

8.70

5.52

6.84

4.40

5.59

3.62

5.07

3.29

8.54

*10.31

*13.85

*13.96

10.37

*11.08

7.27

8.70

5.52

6.84

4.40

5.61

3.64

8.00

*13.10

*16.94

*13.06

10.46

*10.46

7.32

*8.56

5.56

6.89

4.45

6.51

4.21

7.28

*16.60

*14.74

*11.53

10.62

*9.26

7.44

*7.42

5.67

*6.85

5.27

6.32

*11.38

*8.96

*6.96

4.98

FEET

A(ft)

MAX. REACH

A(ft)

B(ft)

*6.88

24.39

*10.07

9.82

*6.80

27.57

*10.97

9.63

*6.99

29.56

*17.41

*13.98

13.32

*12.24

9.33

*8.96

6.87

*7.41

6.63

30.61

*19.37

*22.54

19.69

*16.62

12.69

*13.67

9.00

10.28

6.72

*8.10

6.42

30.82

(GROUND)

*17.29

*26.05

18.82

*18.74

12.21

13.44

8.74

*9.94

6.59

*9.19

6.53

30.19

-5

*22.66

*27.43

18.43

18.75

11.93

13.27

8.58

10.80

7.00

28.68

-10

*31.42

*26.79

18.42

18.70

11.89

13.28

8.59

12.44

8.07

26.14

-15

*34.36

*23.82

18.70

*17.32

12.09

*14.87

10.42

22.19

-20

*16.43

*15.32

15.81

1. RATINGS ARE BASED ON SAE J1097

2. LOAD POINT IS THE HOOK ON THE BACK OF THE BUCKET.

3. * RATED LOADS ARE BASED ON HYDRAULIC CAPACITY.

4. RATED LOADS DO NOT EXCEED 87% OF HYD. CAPACITY OR 75% OF TIPPING CAPACITY.

AYO0040L

022-00031E Operation and Maintenance Manual

Safety 1-45

2OPERATING CONTROLS

The "Operating Controls" section presented here consists of the following groups:

“Component Locations” on page 2-2

“Operator’s Area” on page 2-4

“Operational Controls and Panels” on page 2-5

“Instrument Panel” on page 2-14

“Multifunction Gauge and Graphic Information” on page 2-19

“Mode Selection Buttons” on page 2-23

“Setting Method for Main Menu” on page 2-26

“Heater and Air Conditioner Control Panel” on page 2-30

“Stereo” on page 2-35

10.

“Fuse Boxes” on page 2-42

11.

“Miscellaneous Electrical Devices” on page 2-43

12.

“Seat Adjustment” on page 2-45

13.

“Seat Belt” on page 2-47

14.

“Ceiling Cover” on page 2-48

15.

“Front Windows” on page 2-49

16.

“Door Side Latch” on page 2-52

17.

“Miscellaneous Access Covers and Doors” on page 2-53

18.

“Cab Storage Compartments” on page 2-54

19.

“Ashtray” on page 2-54

21.

“Emergency Glass Breaking Tool” on page 2-55

Each group is explained with a point location drawing or photo and a brief description of each control,

switch, gauge or valve.

Indicator lights work in addition to the gauges on the instrument panel. The operator should monitor

machine pressure on the instrument panel along with indicator lights. These lights will only give the

operator an indication that there is a problem.

WARNING!

Warning lights. When any one or more of the warning lights on the control console, come "ON,"

immediately stop operation and shut down unit. Investigate and correct the problem before

proceeding with operation.

022-00031E Operation and Maintenance Manual

Operating Controls 2-1

BATTERY

19. PRECLEANER

FUEL TANK FILL CAP

20. TRAVEL MOTOR

FUEL TANK

21. LOWER ROLLER

HYDRAULIC OIL TANK

22. UPPER ROLLER

PUMPS

23. TRACK GUIDE

MUFFLER

24. TRACK ADJUSTER

COUNTERWEIGHT

25. IDLER

ENGINE

26. TRACK LINK AND SHOE

RADIATOR AND OIL COOLER

27. TRAVEL LEVER

10.

AIR CLEANER

28. WORK LEVER (JOYSTICK) CONTROLS

11.

CONTROL VALVES

29. TOOTH POINT

12.

ARM CYLINDER

30. SIDE CUTTER

13.

BOOM

31. BUCKET

14.

BOOM CYLINDER

32. PUSH LINK

15.

CAB

33. GUIDE LINK

16.

SEAT

34. ARM

17.

CENTER JOINT

35. BUCKET CYLINDER

18.

SWING MOTOR

022-00031E Operation and Maintenance Manual

Operating Controls 2-3

OPERATIONAL CONTROLS AND PANELS

ARO0020L

Figure 3

STARTER SWITCH

11. OVERLOAD WARNING SWITCH

ENGINE SPEED CONTROL DIAL

(OPTIONAL)

LIGHT SWITCH

12.

HEATER AND AIR CONDITIONER

WIPER SWITCH

CONTROL PANEL (See page 2-30)

WINDSHIELD WASHER SWITCH

13. CIGAR LIGHTER

(OPTIONAL)

14. POWER SOCKET FOR 12 VOLT

TRAVEL SPEED SELECTION SWITCH

15. HORN SWITCH

STEREO ON/OFF SWITCH

16. BOOSTER SWITCH

CAB WORK LIGHT SWITCH (OPTIONAL)

17. BREAKER SWITCH

WARNING LIGHT SWITCH (OPTIONAL)

18. INSTRUMENT PANEL (See page 2-14)

10.

TRAVEL/SWING ALARM SWITCH

19. SAFETY LEVER (See page 3-14)

(OPTIONAL)

022-00031E Operation and Maintenance Manual

Operating Controls 2-5

STARTER SWITCH

A four-position starter switch is used to

start or shut down engine for equipment

operation.

O. Turning the switch to this position

turns the engine "OFF" along with its

electrical system. In this position the

engine is "OFF" but the interior cab

light and fuel tank transfer pump (if

equipped) are functional.

Turning the switch to this position

HAOC340L

turns the engine electrical system

Figure 4

"ON." The charge indicator light and

the oil pressure indicator light should

be "ON" at this time.

. Moving switch to this position will crank engine. When engine starts, release key and allow it to

return to "I" (ON) position. Do not operate the starter switch for more than 15 seconds at a time.

This will help prevent damage to starter.

WARNING!

DO NOT USE STARTING FLUIDS. The preheat system could cause the starting fluid to

explode.

. Preheat position. Used to aid engine starting in cold weather. When key is in this position,

engine preheater is operating. When preheat cycle indicator light turns "ON" engine preheat

cycle is complete. Immediately turn key to crank position and start engine.

ENGINE SPEED CONTROL DIAL

The engine speed is controlled by the dial.

Rotating it clockwise increases engine

speed

(rpm) and counterclockwise

decreases engine speed.

A Low idle (Lowest engine speed)

B High idle (Highest engine speed)

NOTE: The auto idle system will

automatically reduce engine

speed

idle

speed

HAOA690L

approximately 4 seconds after

Figure 5

all of the control levers are in

the neutral position. This

system is designed to reduce

fuel consumption and noise.

See

“3. Auto Idle Selection

Button” on page 2-24.

2-6 Operating Controls

022-00031E Operation and Maintenance Manual

LIGHT SWITCH

This switch is used to turn on the lights.

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

In this position, all illumination lights

of the instrument panel and the

control switches are turned "ON."

II.

In this position, all illumination lights,

work lights and headlights are turned

"ON."

AQO0080L

Figure 6

CAUTION!

Do not leave instrument panel or

headlights "ON" when the engine is

not running. Leaving lights "ON" with

the engine shut down will discharge

batteries.

WIPER SWITCH

O. In this position, windshield wiper is

"OFF."

In this position, windshield wiper runs

at constant speed.

II.

In this position, windshield wiper runs

on approximately five seconds

intermittent cycle.

NOTE: Operating wiper without washer

fluid or when there is sand or

HAOA730L

dirt present will damage the

Figure 7

window and/or wiper.

022-00031E Operation and Maintenance Manual

Operating Controls 2-7

WINDSHIELD WASHER SWITCH

While the windshield wiper is running,

depress the washer switch to spray

windshield washer fluid onto the

windshield. Use only the proper windshield

washer fluid in the system.

O. In this position, the washer is "OFF."

In this position, the windshield

washer sprays fluid. When released

the switch returns to the "O" (OFF)

position.

HAOA740L

Figure 8

NOTE: Do not operate the windshield

washer without any fluid. If you

operate it in spite of running out

of fluid, the washer motor may

be damaged. Check level in

washer tank, and add fluid as

required.

NOTE: If you use soapy water or

synthetic detergent instead of

window cleaning fluid, the wiper

blade or painted surfaces may

be damaged. Use standard

window cleaning fluid: SSK703

TRAVEL SPEED SELECTION SWITCH

WARNING!

Do not operate the Travel Speed

Switch when unit is in motion.

Temporary loss of control could

result.

This switch activates the automatic speed

range for travel.

ARO0030L

Figure 9

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

selected.

In this position, "HIGH" travel speed

is selected.

II.

In this position, "AUTOMATIC" travel

speed is selected. The travel speed

automatically changes from low to

high range depending on engine

speed and travel motor load.

2-8 Operating Controls

022-00031E Operation and Maintenance Manual

STEREO ON/OFF SWITCH

This switch is used to turn the main power

supply from the fuse box to the stereo

"ON" or "OFF."

Main power to the stereo will only be

turned "ON" when the starter switch is

turned to the "I"

(ON) position, and the

stereo switch is set to the "I" (ON) position.

When this is done, the normal stereo “1.

Power/Volume Control Knob” on page 2-36

can be used to control the stereo.

ARO0040L

If either the starter switch or the stereo on/

Figure 10

off switch (Figure 10) is turned "OFF" the

stereo will be turned "OFF" despite the

actual “1. Power/Volume Control Knob” on

page 2-36.

CAB WORK LIGHT SWITCH

(OPTIONAL)

This switch is used to control the cab work

lights, if unit is equipped with them.

O. In this position, all cab work lights are

turned "OFF."

In this position, the front cab work

lights on the front top of cab will turn

"ON."

II.

In this position, the front cab work

ARO0050L

lights on the front top of cab and rear

Figure 11

cab work lights on rear top of cab will

turn "ON."

WARNING LIGHT SWITCH (OPTIONAL)

If unit is equipped with a warning light,

push this switch to activate it.

O. In this position, the warning light is

turned "OFF."

In this position, the warning light

turns "ON" and will start flashing.

HAOA750L

Figure 12

022-00031E Operation and Maintenance Manual

Operating Controls 2-9

10.

TRAVEL/SWING ALARM SWITCH

(OPTIONAL)

If unit is equipped with an alarm buzzer for

travel/swing alarm, push this switch to

activate the alarm whenever swinging or

traveling.

O. In this position, the travel/swing

alarm system is turned "OFF."

In this position, only the travel alarm

will sound, when the machine is

moving.

ARO0060L

Figure 13

II.

In this position, the alarm will sound

while swinging, and traveling, if

equipped with a swing alarm device.

NOTE: If only equipped with a travel

alarm device, the alarm will not

sound while swinging although

the switch is turned to the "II"

position.

11.

OVERLOAD WARNING SWITCH

(OPTIONAL)

If unit is equipped with an overload

warning device, push this switch to activate

it.

O. In this position, the overload warning

device is turned "OFF."

In this position, when the lifting load

is reached to limit, a warning light on

the instrument panel will turn "ON"

and a warning buzzer will sound.

ARO0070L

Figure 14

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 the

lifting of heavy objects.

Please observe those regulations.

2-10 Operating Controls

022-00031E Operation and Maintenance Manual

12. HEATER AND AIR CONDITIONER

CONTROL PANEL

Used to control air-conditioner and heater

in operator’s compartment. Refer to

“Heater and Air Conditioner Control Panel”

on page 2-30 for more details.

ARO0080L

Figure 15

13.

CIGAR 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 cigar lighter is for 24V only.

Never connect a 12V electrical

device to the lighter.

HAOA780L

Figure 16

14.

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.

12 V

Open the cap when using it.

NOTE: This socket is designed for

small

electrical

capacity

devices. Do not use this socket

ARO0090L

for large electrical capacity

Figure 17

devices. Thus damage can be

avoided.

022-00031E Operation and Maintenance Manual

Operating Controls 2-11

15. HORN SWITCH (LEFT HAND WORK

LEVER (JOYSTICK))

Press the left side button on the top of the

left hand work lever

(joystick) to sound

horn.

HAAD4250

Figure 18

16. BOOSTER SWITCH (RIGHT HAND

WORK LEVER (JOYSTICK))

Press the right side button on the top of

the right hand work lever (joystick) to boost

the hydraulic pressure. Refer to the “Boost

Mode” on page 3-24.

ARO0110L

Figure 19

17. BREAKER SWITCH (RIGHT HAND

WORK LEVER (JOYSTICK))

Press the left side button on the top of the

right hand work lever (joystick) to activate

the hydraulic breaker.

Release the left side button on the top of

the right hand work lever

(joystick) to

deactivate the hydraulic breaker.

ARO0120L

Figure 20

18. INSTRUMENT PANEL

See “Instrument Panel” on page 2-14.

ARO0130L

Figure 21

2-12 Operating Controls

022-00031E Operation and Maintenance Manual

INSTRUMENT PANEL

02/05

[MO] 11:30A

ENG SPEED

2059

RPM

POWER

DISPLAY

AUTO

ESC

ARO0010L

Figure 23

ENGINE COOLANT TEMPERATURE

PREHEATING COMPLETION LIGHT

GAUGE

10.

WORK LIGHT INDICATOR LIGHT

FUEL GAUGE

11.

OVERLOAD WARNING LIGHT

MULTIFUNCTION GAUGE AND GRAPHIC

(OPTIONAL)

INFORMATION AREA (See page 2-19)

12. POWER MODE SELECTION BUTTON

DIGITAL CLOCK

(See page 2-23)

HOUR METER

13. WORK MODE SELECTION BUTTON (See

CHARGE WARNING LIGHT

page 2-24)

ENGINE OIL PRESSURE WARNING

14. AUTO IDLE SELECTION BUTTON (See

LIGHT

page 2-24)

COOLANT TEMPERATURE WARNING

15. DISPLAY SELECTION BUTTON (See page

LIGHT

2-25)

2-14 Operating Controls

022-00031E Operation and Maintenance Manual

FUNCTIONAL CHECK

When the engine starter switch is turned to the "I" (ON) position, all bands of gauges, indicator lights of

switches/buttons and indicator/warning lights will turn "ON" and the alarm buzzer will sound for about 2

seconds.

During this time, a moving excavator will appear on the digital clock and graphic information area (3 and 4,

Figure 23).

ENGINE COOLANT TEMPERATURE

GAUGE

RED

The colored bands indicate the

temperature of the engine coolant.

GREEN

WHITE ZONE - Indicates temperature is

lower than the normal operating

WHITE

temperature.

GREEN ZONE - Indicates temperature is

within the normal operating range.

RED ZONE - Indicates temperature is too

ARO0140L

high.

Figure 24

During operation, the bands must be in the

green zone.

If the band in the red zone starts to blink, a warning buzzer will sound and the engine speed will be

automatically reduced. At this time, allow the engine to run at low idle speed until the temperature

gauge registers in the green zone again. When the green zone is reached, shut down engine. Check

the coolant level, 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.

FUEL GAUGE

Shows remaining fuel quantity in tank.

GREEN

GREEN ZONE - Indicates a normal fuel

quantity.

RED

RED ZONE - Indicates that the fuel level is

low.

If the band in the red zone starts to blink,

add fuel immediately.

Check the fuel level on smooth, level

ground.

ARO0150L

Figure 25

022-00031E Operation and Maintenance Manual

Operating Controls 2-15

MULTIFUNCTION GAUGE AND

GRAPHIC INFORMATION AREA

See

“Multifunction Gauge and Graphic

Information” on page 2-19.

1.Fuel Filter

Hrs: 0232 Reset:

POWER

DISPLAY

AUTO

ESC

HAAD3781

Figure 26

DIGITAL CLOCK

As a digital clock, it indicates the current

time. The displayed contents are as

follows.

Display

Description

MM/DD [W] HH:mm A

Month

Date

Day

ARO0350L

Hour

Figure 27

Minute

A (P)

AM (PM)

Refer to the

“Setting Method for Main

Menu” on page 2-26" for time setting.

HOUR METER

The hour meter is used to indicate the total

number of running hours on the engine.

The meter will flash every 4 seconds when

the engine is running to indicate that it is

functioning properly.

HAOA600L

Figure 28

2-16 Operating Controls

022-00031E Operation and Maintenance Manual

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 29

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

HAOA620L

engine damage.

Figure 30

COOLANT TEMPERATURE WARNING

LIGHT

If engine coolant overheats, this light will

turns "ON" and an alarm will sound. If light

turns "ON," reduce engine speed 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 coolant temperature

gauge. If the band in the red

HAOD350L

zone starts to blink, a warning

Figure 31

buzzer will sound and the

engine

speed

will

automatically reduced. At this time, allow the engine to run at low idle speed until the

temperature gauge registers in the green zone again. When the green zone is reached,

shut down engine. Check the coolant level, 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.

022-00031E Operation and Maintenance Manual

Operating Controls 2-17

PREHEATING COMPLETION LIGHT

This light indicates that the engine preheat

function has been completed.

HAOA639L

Figure 32

10. WORK LIGHT INDICATOR LIGHT

The indicator light indicates that the work

lights are turned on.

Figure 33

11. OVERLOAD WARNING LIGHT

(OPTIONAL)

On machine with an overload warning

device, this indicator light will turn "ON"

and a warning buzzer sounds when the

load limit has been reached.

WARNING!

If this indicator light turns "ON"

ARO0220L

during the lifting operation, reduce

Figure 34

the load immediately.

If you continue to work when this

light is "ON" the machine can be

overturned or damage to hydraulic

components and structural parts

could occur.

2-18 Operating Controls

022-00031E Operation and Maintenance Manual

Doosan Solar 255LC-V. Operation and Maintenance Manual (2002) - page 1