Atlas Copco LS 14 Maintenance and service guide

Safety and operating instructions
Cut-off saws
Prescriptions de sécurité et instructions pour
l’opérateur
Tronçonneuses
Sicherheits- und Betriebsanleitung
Trennsägen
Instrucciones de seguridad y de funcionamiento
Desbarbadoras
Instruções de segurança e operação
Serras de corte
Istruzioni per la sicurezza e per l'uso
Troncatrici
Veiligheidsvoorschriften en bedieningshandleiding
Afkortzagen
Οδηγίες ασφάλειας και χειρισμού
Δισκοπρίονα κοπής
Turvallisuusohjeet ja käyttöohje
Katkaisusahat
Sikkerhedsinstruktioner og betjeningsvejledning
Kapsave
Säkerhetsinstruktion och instruktionsbok
Kapsågar
Instrukcje bezpieczeństwa i obsługi
Przecinarki
© 2010 Atlas Copco Construction Tools AB | No. 3392 5042 90b | 2010-01-01
Original instructions
LS 14, 16, Cart

Contents
ENGLISH...........................................................................4
FRANÇAIS........................................................................22
DEUTSCH.........................................................................44
ESPAÑOL.........................................................................66
PORTUGUÊS......................................................................86
ITALIANO........................................................................108
NEDERLANDS...................................................................128
ΕΛΛΗΝΙΚΑ.......................................................................148
SUOMI...........................................................................170
DANSK..........................................................................190
SVENSKA........................................................................210
POLSKI..........................................................................230
3© 2010 Atlas Copco Construction Tools AB | No. 3392 5042 90b | 2010-01-01
Original instructions
ContentsLS 14, 16, Cart

ENGLISH
Contents
Introduction........................................................................7
About the Safety and operating instructions..........................................7
Safety instructions.................................................................8
Safety signal words..............................................................8
Personal precautions and qualifications...........................................8
Personalprotectiveequipment...................................................8
Drugs, alcohol or medication....................................................8
Installation, precautions..........................................................8
Operation, precautions...........................................................9
Maintenance, precautions.......................................................12
Storage, precautions............................................................12
Overview.........................................................................13
Design and function............................................................13
Main parts...................................................................13
Cart for the cut-off saw........................................................13
Labels.........................................................................14
Dataplate....................................................................14
Direction of rotation...........................................................14
Cutting blade speed rating.....................................................14
Noise level label..............................................................14
EHTMA category.............................................................14
RPM label...................................................................15
Installation........................................................................15
Hoses.........................................................................15
Quick-release couplings........................................................15
Hydraulic oil ...................................................................15
Cutting blades..................................................................15
Selectingtherightcuttingblade.................................................15
Abrasive discs.............................................................15
Diamond blades...........................................................15
Fitting and removingthe cutting blade...........................................16
Operation.........................................................................16
Preparation before starting......................................................16
Start and stop..................................................................17
Start........................................................................17
Stop.........................................................................17
Operating......................................................................17
Cutting......................................................................17
When taking a break............................................................17
Maintenance......................................................................17
Every day......................................................................18
Every three month..............................................................18
Every 300 hours of operation or every year.......................................18
Storage...........................................................................18
Disposal..........................................................................18
Technical data.....................................................................19
Troubleshooting................................................................19
Machine data...................................................................19
© 2010 Atlas Copco Construction Tools AB | No. 3392 5042 90b | 2010-01-01
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Noise and vibration data........................................................20
Noise and vibration declaration statement........................................20
EC Declaration of Conformity......................................................21
EC Declaration of Conformity (EC Directive 2006/42/EC)...........................21
5© 2010 Atlas Copco Construction Tools AB | No. 3392 5042 90b | 2010-01-01
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ContentsLS 14, 16, Cart

Introduction
Thank you for choosing a product from Atlas Copco. Since 1873, we have been
committed to finding new and better ways of fulfilling our customers' needs.
Through the years, we have developed innovative and ergonomic product
designs that have helped customers improve and rationalize their daily work.
Atlas Copco has a strong global sales and service network, consisting of
customer centers and distributors worldwide. Our experts are highly trained
professionals with extensive product knowledge and application experience.
In all corners of the world, we can offer product support and expertise to ensure
that our customers can work at maximum efficiency at all times.
For more information please visit: www.atlascopco.com
Atlas Copco Construction Tools AB
105 23 Stockholm
Sweden
About the Safety and operating
instructions
The aim of the instructions is to provide you with knowledge of how to use the
cut-off saw in an efficient, safe way. The instructions also give you advice and
tell you how to perform regular maintenance on the cut-off saw.
Before using the cut-off saw for the first time you must read these instructions
carefully and understand all of them.
7© 2010 Atlas Copco Construction Tools AB | No. 3392 5042 90b | 2010-01-01
Original instructions
Safety and operating instructionsLS 14, 16, Cart

Safety instructions
To reduce the risk of serious injury or death to
yourself or others, read and understand the Safety
and operating instruction before installing, operating,
repairing, maintaining, or changing accessories on
the machine.
Post this Safety and operating instruction at work
locations, provide copies to employees, and make
sure that everyone reads the Safety and operating
instruction before operating or servicing the machine.
In addition, the operator or the operator's employer
must assess the specific risks that may be present
as a result of each use of the machine.
Safety signal words
The safety signal words Danger, Warning and
Caution have the following meanings:
Indicates a hazardous situation
which, if not avoided, will result
in death or serious injury.
DANGER
Indicates a hazardous situation
which, if not avoided, could
result in death or serious injury.
WARNING
Indicates a hazardous situation
which, if not avoided, could
result in minor or moderate
injury.
CAUTION
Personal precautions and
qualifications
Only qualified and trained persons may operate or
maintain the machine. They must be physically able
to handle the bulk, weight, and power of the tool.
Always use your common sense and good
judgement.
Personal protective equipment
Always use approved protective equipment.
Operators and all other persons in the working area
must wear protective equipment, including at a
minimum:
●Protective helmet
●Hearing protection
●Impact resistant eye protection with side protection
●Respiratory protection when appropriate
●Protective gloves
●Proper protective boots
●Appropriate work overall or similar clothing (not
loose-fitting) that covers your arms and legs.
Drugs, alcohol or medication
WARNING Drugs, alcohol or medication
Drugs, alcohol or medication may impair your
judgment and powers of concentration. Poor
reactions and incorrect assessments can lead to
severe accidents or death.
►Never use the machine when you are tired or
under the influence of drugs, alcohol or
medication.
►No person who is under the influence of drugs,
alcohol or medication may operate the machine.
Installation, precautions
WARNING Whipping hydraulic hose
Hydraulic hoses under pressure can whip
uncontrollably if screws loosen or are loosened. A
whipping hydraulic hose can cause severe injuries.
►Depressurise the hydraulic system before
loosening the connection of a hydraulic hose.
►Tighten the nuts on the connections of the
hydraulic hoses to the required torque.
►Check that the hydraulic hose and the connections
are not damaged.
CAUTION Moving parts
Risk for crushed hands and fingers.
►Never check bores or passages with hands or
fingers.
►Never clean chips with fingers use brush instead.
WARNING Cutting blade hazard
A cutting blade may burst and cause personal injury
or death.
►Check that no persons are within the safety
distance, which is 15 m (49 ft). Never start cutting
until the working zone is clear.
►Never use a cutting blade with a lower speed
rating than the machine's.
►Inspect the disc before usage, check that it is not
chipped, cracked or show signs of other defects.
►Check that the cutting blade is fitted correctly and
does not show signs of damage.
►Always ensure that the guard is in place, is in good
condition and correctly fitted before starting the
machine.
►Ensure that the disc safety clamps are in place.
►Never use a cutting blade for any other purpose
than it is intended for.
© 2010 Atlas Copco Construction Tools AB | No. 3392 5042 90b | 2010-01-01
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WARNING Hydraulic oil at high pressure
Thin jets of hydraulic oil under high pressure can
penetrate the skin and cause permanent damage.
►Immediately consult a doctor if hydraulic oil has
penetrated the skin.
►Never use your fingers to check for hydraulic fluid
leaks.
►Keep your face away from any possible leaks.
WARNING Hydraulic oil
Spilled hydraulic oil can cause burns, accidents due
to slippery conditions and will also harm the
environment.
►Take care of all spilled oil and handle it according
to your safety and environmental regulations.
►Never dismount the hydraulic machine when the
hydraulic oil is hot.
►Never run any hydraulic lines for attachment of
the hydraulic machine through the drivers cab.
CAUTION Skin eczema
Hydraulic oil can cause eczema if it comes in contact
with the skin.
►Avoid getting hydraulic oil on your hands.
►Always use protective gloves when working with
hydraulic oil.
►Wash hands after contact with hydraulic oil.
Operation, precautions
WARNING Operating pressure
If the maximum operating pressure for the hydraulic
machine is exceeded, it can result in material
damage and personal injury.
►Always run the hydraulic machine with the correct
operating pressure. See "Technical data".
DANGER Explosion hazard
If an insertion tool comes into contact with explosives
or explosive gases, an explosion could occur. When
working on certain materials and when using certain
materials in machine parts, sparks and ignition can
occur. Explosions will lead to severe injuries or death.
►Never operate the machine in any explosive
environment.
►Never use the machine near flammable materials,
fumes or dust.
►Make sure that there are no undetected sources
of gas or explosives.
WARNING Unexpected movements
The machine and the cutting blade might kick back
towards the operator very suddenly and violently. If
the upper quadrant of the blade touches an object,
the cutting blade might move and may cause serious
injury. To reduce risks:
►Never use the equipment if you suspect that it is
damaged.
►Never start to cut with the upper quadrant of the
cutting blade.
►Always hold onto the machine with both hands
and make sure the cutting blade is away from your
body.
►Keep a good balance and a firm foothold.
►Always cut with the machine running at maximum
speed.
►Make sure that the work piece is supported during
cutting.
►Be careful when inserting the blade in the
machine.
►Never cut above shoulder height.
►Never cut in wood.
►Never place the machine on the ground, before
the blade has come to a complete stop.
►Never strike or abuse the equipment.
9© 2010 Atlas Copco Construction Tools AB | No. 3392 5042 90b | 2010-01-01
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Safety and operating instructionsLS 14, 16, Cart

WARNING Dust and fume hazard
Dusts and/or fumes generated or dispersed when
using the machine may cause serious and permanent
respiratory disease, illness, or other bodily injury (for
example, silicosis or other irreversible lung disease
that can be fatal, cancer, birth defects, and/or skin
inflammation).
Some dusts and fumes created by drilling, breaking,
hammering, sawing, grinding and other construction
activities contain substances known to the State of
California and other authorities to cause respiratory
disease, cancer, birth defects, or other reproductive
harm. Some examples of such substances are:
●Crystalline silica, cement, and other masonry
products.
●Arsenic and chromium from chemically-treated
rubber.
●Lead from lead-based paints.
Dust and fumes in the air can be invisible to the
naked eye, so do not rely on eye sight to determine
if there is dust or fumes in the air.
To reduce the risk of exposure to dust and fumes,
do all of the following:
►Perform site-specific risk assessment. The risk
assessment should include dust and fumes
created by the use of the machine and the
potential for disturbing existing dust.
►Use proper engineering controls to minimize the
amount of dust and fumes in the air and to
minimize build-up on equipment, surfaces,
clothing, and body parts. Examples of controls
include: exhaust ventilation and dust collection
systems, water sprays, and wet drilling. Control
dusts and fumes at the source where possible.
Make sure that controls are properly installed,
maintained and correctly used.
►Wear, maintain and correctly use respiratory
protection as instructed by your employer and as
required by occupational health and safety
regulations. The respiratory protection must be
effective for the type of substance at issue (and if
applicable, approved by relevant governmental
authority).
►Work in a well ventilated area.
►If the machine has an exhaust, direct the exhaust
so as to reduce disturbance of dust in a dust filled
environment.
►Operate and maintain the machine as
recommended in the operating and safety
instructions
►Select, maintain and replace consumables/
inserted tools/ other accessory as recommended
in the operating and safety instructions. Incorrect
selection or lack of maintenance of consumables/
inserted tools/ other accessories may cause an
unnecessary increase in dust or fumes.
►Wear washable or disposable protective clothes
at the worksite, and shower and change into clean
clothes before leaving the worksite to reduce
exposure of dust and fumes to yourself, other
persons, cars, homes, and other areas.
►Avoid eating, drinking, and using tobacco products
in areas where there is dust or fumes.
►Wash your hands and face thoroughly as soon as
possible upon leaving the exposure area, and
always before eating, drinking, using tobacco
products, or making contact with other persons.
►Comply with all applicable laws and regulations,
including occupational health and safety
regulations.
►Participate in air monitoring, medical examination
programs, and health and safety training programs
provided by your employer or trade organizations
and in accordance with occupational health and
safety regulations and recommendations. Consult
with physicians experienced with relevant
occupational medicine.
►Work with your employer and trade organization
to reduce dust and fume exposure at the worksite
and to reduce the risks. Effective health and safety
programs, policies and procedures for protecting
workers and others against harmful exposure to
dust and fumes should be established and
implemented based on advice from health and
safety experts. Consult with experts.
WARNING Projectiles
Failure of the work piece, of accessories, or even of
the machine itself may generate high velocity
projectiles. During operating, splinters or other
particles from the working material may become
projectiles and cause personal injury by striking the
operator or other persons. To reduce these risk:
►Use approved personal protective equipment and
safety helmet, including impact resistant eye
protection with side protection.
►Make sure that no unauthorised persons trespass
into the working zone.
►Keep the workplace free from foreign objects.
►Ensure that the work piece is securely fixed.
© 2010 Atlas Copco Construction Tools AB | No. 3392 5042 90b | 2010-01-01
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WARNING Slipping, tripping and falling
hazards
There is a risk of slipping or tripping or falling, for
example tripping on the hoses or on other objects.
Slipping or tripping or falling can cause injury. To
reduce this risk:
►Always make sure that no hose or other object is
in your way or in any other person's way.
►Always make sure you are in a stable position with
your feet as far apart as your shoulders width and
keeping a balanced body weight.
WARNING Motion hazards
When using the machine to perform work-related
activities, you may experience discomfort in the
hands, arms, shoulders, neck, or other parts of the
body.
►Adopt a comfortable posture whilst maintaining
secure footing and avoiding awkward off-balanced
postures.
►Changing posture during extended tasks may help
avoid discomfort and fatigue.
►In case of persistent or recurring symptoms,
consult a qualified health professional.
WARNING Material hazard
During operating, the material that you operate in
can become hot and fall down, which can cause a
fire or even an explosion. This can lead to personal
injury or death.
►Always consider the direction of the falling object.
►Wear fire resistant clothing and have a bucket of
water nearby.
WARNING Trapping hazard
There is risk of neck ware, hair, gloves and clothes
getting dragged into or caught by a rotating insertion
tool or accessories. This may cause choking,
scalping, lacerations or death. To reduce the risk:
►Never grab or touch a rotating blade.
►Avoid wearing clothing, neck ware or gloves that
may get caught.
►Cover long hair with a hair net.
WARNING Grinding hazard
Using the side of the cutting blade can cause that
the blade jam or break. Pressure from the side can
damage the cutting blade. This can result in personal
injury. To reduce risk:
►Never grind by using the side of the cutting blade.
►Never use the cutting blade if it has been
damaged.
►Never grind over the maximum peripheral speed.
►Always feed the machine down in line with the
cutting blade.
►Only use the cutting section.
►Never pull the machine to one side.
WARNING Vibration hazards
Normal and proper use of the machine exposes the
operator to vibration. Regular and frequent exposure
to vibration may cause, contribute to, or aggravate
injury or disorders to the operator’s fingers, hands,
wrists, arms, shoulders and/or nerves and blood
supply or other body parts, including debilitating
and/or permanent injuries or disorders that may
develop gradually over periods of weeks, months, or
years. Such injuries or disorders may include damage
to the blood circulatory system, damage to the
nervous system, damage to joints, and possibly
damage to other body structures.
If numbness, persistent recurring discomfort, burning
sensation, stiffness, throbbing, tingling, pain,
clumsiness, weakened grip, whitening of the skin, or
other symptoms occur at any time, when operating
the machine or when not operating the machine, stop
operating the machine, tell your employer and seek
medical attention. Continued use of the machine after
the occurrence of any such symptom may increase
the risk of symptoms becoming more severe and/or
permanent.
Operate and maintain the machine as recommended
in these instructions, to prevent an unnecessary
increase in vibration.
The following may help to reduce exposure to
vibration for the operator:
►Let the tool do the job. Use a minimum hand grip
consistent with proper control and safe operation.
►If the machine has vibration absorbing handles,
keep them in a central position, avoid pressing the
handles into the end stops.
►When the percussion mechanism is activated, the
only body contact with the machine you should
have are your hands on the handle or handles.
Avoid any other contact, for example supporting
any part of the body against the machine or
leaning onto the machine trying to increase the
feed force. It is also important not to keep the start
and stop device engaged while extracting the tool
from the broken work surface.
►Make sure that the inserted tool is well-maintained
(including sharpness, if a cutting tool), not worn
out, and of the proper size. Insertion tools that are
not well-maintained, or that are worn out, or that
are not of the proper size result in longer time to
complete a task (and a longer period of exposure
to vibration) and may result in or contribute to
higher levels of vibration exposure.
11© 2010 Atlas Copco Construction Tools AB | No. 3392 5042 90b | 2010-01-01
Original instructions
Safety and operating instructionsLS 14, 16, Cart

►Immediately stop working if the machine suddenly
starts to vibrate strongly. Before resuming the
work, find and remove the cause of the increased
vibrations.
►Never grab, hold or touch the inserted tool when
using the machine.
►Participate in health surveillance or monitoring,
medical exams and training programs offered by
your employer and when required by law.
►When working in cold conditions wear warm
clothing and keep hands warm and dry.
See the ”Noise and vibration declaration statement”
for the machine, including the declared vibration
values. This information can be found at the end of
these Safety and operating instructions.
DANGER Electrical hazard
The machine is not electrically insulated. If the
machine comes into contact with electricity, serious
injuries or death may result.
►Never operate the machine near any electric wire
or other source of electricity.
►Make sure that there are no concealed wires or
other sources of electricity in the working area.
WARNING Concealed object hazard
During operating, concealed wires and pipes
constitute a danger that can result in serious injury.
►Check the composition of the material before
operating.
►Watch out for concealed cables and pipes for
example electricity, telephone, water, gas and
sewage lines etc.
►If the inserted tool seems to have hit a concealed
object, switch off the machine immediately.
►Make sure that there is no danger before
continuing.
WARNING Involuntary start
Involuntary start of the machine may cause injury.
►Keep your hands away from the start and stop
device until you are ready to start the machine.
►Learn how the machine is switched off in the event
of an emergency.
►Stop the machine immediately in all cases of
power supply interruption.
WARNING Noise hazard
High noise levels can cause permanent and disabling
hearing loss and other problems such as tinnitus
(ringing, buzzing, whistling, or humming in the ears).
To reduce risks and prevent an unnecessary increase
in noise levels:
►Risk assessment of these hazards and
implementation of appropriate controls is essential.
►Operate and maintain the machine as
recommended in these instructions.
►Select, maintain and replace the insertion tool as
recommended in these instructions.
►If the machine has a silencer, check that it is in
place and in good working condition.
►Always use hearing protection.
►Use damping material to prevent work pieces from
'ringing'.
Maintenance, precautions
WARNING Machine modification
Any machine modification may result in bodily injuries
to yourself or others.
►Never modify the machine. Modified machines are
not covered by warranty or product liability.
►Always use original parts, insertion tools and
accessories approved by Atlas Copco.
►Change damaged parts immediately.
►Replace worn components in good time.
WARNING Insertion tool hazards
Accidental engagement of the start and stop device
during maintenance or installation can cause serious
injuries, when the power source is connected.
►Never inspect, clean, install, or remove the
insertion tool while the power source is connected.
CAUTION Hot insertion tool
The tip of the insertion tool can become hot and
sharp when used. Touching it can lead to burns and
cuts.
►Never touch a hot or sharp insertion tool.
►Wait until the insertion tool has cooled down before
carrying out maintenance work.
Storage, precautions
♦Keep the machine and tools in a safe place, out
of the reach of children and locked up.
© 2010 Atlas Copco Construction Tools AB | No. 3392 5042 90b | 2010-01-01
Original instructions
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LS 14, 16, CartSafety and operating instructions

Overview
To reduce the risk of serious injury or death to
yourself or others, read the Safety instructions
section found on the previous pages of this
manual before operating the machine.
Design and function
The Atlas Copco LS 14 and LS 16 hydraulic cut-off
saws are powerful, light and compact machines
designed for working together with Atlas Copco
hydraulic power packs.
The cut-off saws are designed for cutting through
concrete, asphalt and steel with cutting blades for
both dry and wet cutting. They can be used with both
diamond blades and with abrasive discs. A dust
collector can be connected to the blade guard for
operation in areas where the use of water is not
possible. No other use is permitted.
A separate water kit with pressure tank is available
(see the spare parts list).
The simple hydraulic design with direct drive, reduces
maintenance and provides consistent speed and
torque.
The Atlas Copco LS 14 and LS 16 cut-off saws are
delivered with 2 m ⅜” tail-hoses with ½” 'Flat-Face'
quick-release couplings.
Main parts
A. Trigger
B. Valve block
C. Frame
D. Front handle
E. Guard
F. Hydraulic motor
G. Hydraulic hose
H. Water valve
I. Cutting blade
J. Quick release couplings
Cart for the cut-off saw
The Atlas Copco LSC cart for the cut-off saw is
recommended for precise and clean cutting jobs on
roads, pavements and floors.
The use of the cart gives a better working posture,
and the cutting depth can be adjusted by means of
an arm at the front of the cart. The cart is equipped
with a water kit. The cart is not standard equipment.
Assembling the cut-off saw in to the cart:
●Untighten the screws (1).
●Set the body of the cut-off saw between the
brackets (2).
●Tighten the screws (1).
●Set the lever holder (3) over the safety trigger and
tighten it.
●Set the cable link over the trigger (4) and tighten
it.
●Connect the water hose of the tank to the nipple
of the cut of saw and switch ON the water lever
of the tank.
●The depth of cutting can be adjusted with the
screw (5).
Disassembling the cut-off saw from the cart:
13© 2010 Atlas Copco Construction Tools AB | No. 3392 5042 90b | 2010-01-01
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Safety and operating instructionsLS 14, 16, Cart

●Switch OFF the water lever of the tank and
disconnect the water hose of the tank from the
nipple on the cut-off saw.
●Disconnect the cable link from the trigger on the
saw.
●Disconnect the lever holder from the safety trigger
of the saw.
●Untighten the screws (1).
●Disconnect the body of the cut-off saw from the
brackets (2).
Labels
The machine is fitted with labels containing important
information about personal safety and machine
maintenance. The labels shall be in such condition
that they are easy to read. New labels can be ordered
from the spare parts list.
Data plate
A. Maximum permitted hydraulic oil flow
B. Machine type
C. Maximum permitted hydraulic pressure
D. The warning symbol together with the book
symbol means that the user must read the
safety and operating instructions before the
machine is used for the first time.
E. Serial number (is also stamped in the valve
housing).
F. The CE symbol means that the machine is
EC-approved. See the EC declaration which
is delivered with the machine for more
information.
G. Year of manufacture.
Direction of rotation
The red sticker on the blade guard shows the
direction of rotation.
Cutting blade speed rating
Never use a cutting blade with a lower speed rating
than the machine's. A minimum cutting blade speed
rating of 4400 rpm is recommended.
Noise level label
The label indicates the guaranteed noise level
corresponding to EC-directive 2000/14/EC. See
"Technical data" for accurate noise level.
EHTMA category
The machine is clearly marked with EHTMA
categories. It is important that any power source used
is in a compatible category. If any doubt, consult an
authorised supervisor.
© 2010 Atlas Copco Construction Tools AB | No. 3392 5042 90b | 2010-01-01
Original instructions
14
LS 14, 16, CartSafety and operating instructions

RPM label
Installation
WARNING Whipping hydraulic hose
Hydraulic hoses under pressure can whip
uncontrollably if screws loosen or are loosened. A
whipping hydraulic hose can cause severe injuries.
►Depressurise the hydraulic system before
loosening the connection of a hydraulic hose.
►Tighten the nuts on the connections of the
hydraulic hoses to the required torque.
►Check that the hydraulic hose and the connections
are not damaged.
Hoses
For connection on the machine, the hydraulic hose
must be approved for a working pressure of at least
160 bar (2300 psi) and have a ½” inner diameter. To
resist exterior wear and tear, we recommend using
a 2-layer hydraulic hose. The machine connection
marked P (pump) is the oil inlet, and the connection
marked T (tank) is the oil outlet. Always connect both
hoses and make sure that all hose connections are
tight. Never carry the machine by the hose.
Quick-release couplings
The original Atlas Copco hydraulic hoses are fitted
with Flat-Face quick-release couplings that are strong
and easy to clean. The quick-release couplings are
fitted so that the male connection supplies oil and
the female connection receives oil.
NOTICE Wipe all couplings clean before
connecting. Ensure that couplings are clean and
correctly engaged before operation. Failure to do so
may result in damage to the quick couplings and
cause overheating and cause foreign matter to enter
the hydraulic system.
Hydraulic oil
In order to protect the environment, Atlas Copco
recommends the use of biologically degradable
hydraulic oil. No other fluids should be used.
♦Viscosity (preferred) 20-40 cSt.
♦Viscosity (permitted) 15-100 cSt.
♦Viscosity index Min. 100.
Standard mineral or synthetic oil can be used. Make
sure to only use clean oil and filling equipment.
When the machine is used continuously, the oil
temperature will stabilise at a level which is called
the working temperature. This will, depending on the
type of work and the cooling capacity of the hydraulic
system, be between 20-40°C (68-104°F) above the
ambient temperature. At working temperature, the
oil viscosity must lie within the preferred limits. The
viscosity index indicates the connection between
viscosity and temperature. A high viscosity is
therefore preferred, because the oil can then be used
within a wider temperature range. The machine shall
not be used, if oil viscosity fails to remain within the
permitted area, or if the working temperature of the
oil does not fall between 20°C (68°F) and 70°C
(158°F).
Cutting blades
NOTICE High-quality cutting blades are often most
economical. Lower quality blades often have inferior
cutting capacity and a shorter service life, which
results in a higher cost in relation to the quantity of
material that is cut. The cutting blades must be
approved for free hand cutting machines and rated
for minimum 4400 rpm.
Selecting the right cutting blade
The cut-off saws can be used with both diamond
blades and with the more traditional abrasive discs.
Store and handle the abrasive product with care in
accordance with manufacturer’s instructions.
Abrasive discs
Using abrasive discs, the cut-off saw can be used
for cutting steel, concrete, asphalt or other material
depending on the blade type.
Diamond blades
Diamond blades are ideal for masonry, reinforced
concrete and other composite materials. They are
not, however, recommended for cutting steel.
15© 2010 Atlas Copco Construction Tools AB | No. 3392 5042 90b | 2010-01-01
Original instructions
Safety and operating instructionsLS 14, 16, Cart

There is a wide selection of blades with diamond
segments for various kinds of material. The local
environment (type of stone in the concrete or asphalt)
will often determine which type of diamond blade is
the ideal and most economic solution. Diamond
blades are generally available as dry cutting or wet
cutting blades. If dry cutting blades are used, a dust
collector can be connected to the blade guard for
operation in areas where no water can be accepted.
It is, however, most common to use a wet cutting
diamond blade and a small amount of water to
remove the dust and cool the diamond segments.
With a diamond cutting blade, the cut-off saw can be
used underwater without any modification.
NOTICE Never cool a hot insertion tool in water, it
can result in brittleness and early failure.
Fitting and removing the cutting blade
1. Untighten and remove the nut.
2. Remove the washer.
3. Remove and change the cutting blade.
4. Attach the new cutting blade. Be aware of the
direction of rotation. If there is an arrow on the
blade, this must point in the same direction as
the red arrow on the blade guard.
5. Attach the washer above the cutting blade and
tighten the nut.
6. Make sure that the blades/discs are mounted
correctly and tightened before use.
7. Start the machine at low speed for one minute
in a safe position and check the direction of
rotation of the cutting blade. Stop the machine
immediately if it starts to vibrate strongly or if you
see other defects.
Operation
WARNING Involuntary start
Involuntary start of the machine may cause injury.
►Keep your hands away from the start and stop
device until you are ready to start the machine.
►Learn how the machine is switched off in the event
of an emergency.
►Stop the machine immediately in all cases of
power supply interruption.
NOTICE Never exceed the maximum flow stated
on the machine, as this might lead to failure of the
cutting blade and damage to the machine.
Preparation before starting
The following checks should be made each time you
start to use the cut-off saw. All these checks concern
the serviceability of the cut-off saw. Some concern
your safety:
♦Clean all safety stickers. Replace any that are
missing or cannot be read.
♦Inspect the hoses generally for signs of damage.
♦Inspect the blade for wear and damage. Do not
use an excessively worn or damaged blade.
♦Connect the machine.
♦Ensure that the hydraulic couplings are clean and
fully serviceable.
♦Never invert the cut-off saw without first isolating
it from the power source. The blade might be
ejected forcefully while connecting it, if the saw is
connected to the power source.
♦Ensure that any power source you plan to use is
compatible with the cut-off saw that is used, see
"Technical data". Use recommended LFD oil flow
divider, if the flow from the power source can
exceed the maximum allowed oil flow.
♦Never exceed the maximum relief valve setting
stated on the machine.
♦Always connect P and T hoses before starting.
© 2010 Atlas Copco Construction Tools AB | No. 3392 5042 90b | 2010-01-01
Original instructions
16
LS 14, 16, CartSafety and operating instructions

Start and stop
Start
♦Connect the hoses and couplings.
♦Mount the cut-off saw in the cart (if a cart is to be
used).
♦Start the power source.
♦Activate the water supply or the dust collector, if
they are being used.
♦Place the cut-off saw at a right angle to the surface
to be cut and activate the trigger.
Stop
♦Release the trigger. Keep a firm grip on the cut-off
saw, until the cutting blade has come to a
complete stop.
♦It can take up to ten seconds for the cutting blade
to stop completely.
♦Stop the power source.
♦Disconnect the hoses and fit the protective caps
to the quick-release couplings.
Operating
NOTICE Diamond blades can become dull when
the wrong feeding pressure is used or when cutting
in certain materials, such as heavily reinforced
concrete. Working with a blunt diamond blade causes
overheating, which can result in diamond segments
coming loose. Sharpen the blade by cutting in a soft
material such as sandstone or brick.
NOTICE The blade can become out-of-round and
vibrate if an excessive feeding pressure is used. A
lower feeding pressure can stop the vibration.
Otherwise replace the blade. The blade must be of
the recommended type for the material to be cut.
Cutting
The technique described below is of a general
character. Check information for each cutting blade
regarding individual cutting characteristics (for
example, diamond blades require less feeding
pressure than abrasive discs).
1. During operation the working zone must be
cleared.
2. Always hold the machine in a firm grip with both
hands. Hold it so that the thumbs and fingers grip
round the handles.
3. Stand in a stable position with your feet well away
from the cutting blade.
4. Check that the cutting blade is not in contact with
anything when the machine is started.
5. Always cut at maximum speed. Check regularly
that the speed of the cutting blade is not higher
than what is marked on it.
6. Support the workpiece in such a way, that the
cut slot would open up during the cutting process.
7. Never grind with a cutting disc.
8. Start cutting smoothly, allowing the machine to
work without forcing or pressing in the blade.
9. Move the blade slowly forwards and backwards
to achieve a small contact area between the
blade and the material to be cut. This reduces
the temperature of the blade and ensures
effective cutting.
10. Feed the machine down in line with the blade.
11. The cutting blade guard should be adjusted so
that the rear section is in line with the work piece.
Splinters and sparks from the material being cut
are then collected by the guard and led away
from the operator. Make sure that sparks do not
land on clothing.
12. If the cutting blade gets jammed in a cut, shut off
the grinder and ease the wheel free. Before
continue make sure it is not damaged.
When taking a break
♦During all breaks you must place the machine in
such a way that there is no risk for it to be
unintentionally started. Make sure to place the
machine on the ground, so that it can not fall.
♦In the event of a longer break or when leaving the
workplace: Switch off the power supply and then
bleed the machine by activating the start and stop
device.
Maintenance
Regular maintenance is a basic requirement for the
continued safe and efficient use of the machine.
Follow the maintenance instructions carefully.
17© 2010 Atlas Copco Construction Tools AB | No. 3392 5042 90b | 2010-01-01
Original instructions
Safety and operating instructionsLS 14, 16, Cart

♦Before starting maintenance on the machine, clean
it in order to avoid exposure to hazard substances.
See “Dust and fume hazards”
♦Use only authorised parts. Any damage or
malfunction caused by the use of unauthorised
parts is not covered by warranty or product liability.
♦When cleaning mechanical parts with solvent,
comply with appropriate health and safety
regulations and ensure there is satisfactory
ventilation.
♦For major service to the machine, contact your
nearest authorised workshop.
♦After each service, check that the machine's
vibration level is normal. If not, contact your
nearest authorised workshop.
Every day
Before undertaking any maintenance on hydraulic
machines, always switch off the oil supply and bleed
the machine by depressing the start and stop device
Then disconnect the hydraulic hose from the
machine.
♦Clean and inspect the machine and its functions
each day before the work commences.
♦Check if the spindle thread, the guard (the disc
may not touch the guard) and the flange are in
good condition.
♦Conduct a general inspection for leaks, damage,
and wear.
♦Change damaged parts immediately.
♦Replace worn components in good time.
♦Make sure that all the attached and related
equipment, such as hoses and flow dividers are
properly maintained.
♦If the machine has been dropped, carefully
examine the disc.
♦Ensure that the disc dimensions are compatible
and that it fits the spindle.
♦Always plug hoses and nipples with clean and
tight plugs when dismounting.
♦Check tightness of nuts, bolts, screws and hose
fittings after the first days of operation and
thereafter in accordance with the maintenance
schedule.
Every three month
♦Check tightness of nuts, bolts, screws and hose
fittings.
Every 300 hours of operation
or every year
♦Check moving parts, seals and bolts for wear and
cracks. Replace if necessary.
♦Check the function of the machine.
Storage
♦Check that the machine is properly cleaned before
storage.
♦Store the machine in a dry place.
♦Keep the machine and tools in a safe place, out
of the reach of children and locked up.
Disposal
A used machine must be treated and scrapped in
such a way that the greatest possible portion of the
material can be recycled and any negative influence
on the environment is kept as low as possible.
Before a used machine is scrapped it must be
emptied and cleaned from all hydraulic oil. The
remaining hydraulic oil must be deposited and any
negative influence on the environment is to be kept
as low as possible.
© 2010 Atlas Copco Construction Tools AB | No. 3392 5042 90b | 2010-01-01
Original instructions
18
LS 14, 16, CartSafety and operating instructions

Technical data
Troubleshooting
SolutionCauseProblem
Use proper power sourceConnected to improper power sourceSaw turns too fast or develops too much
torque
Adjust power source flow and pressure
settings as per the manufacturer's
instructions
Power source not adjusted correctly
Disconnect saw and check power supplyPower supply defectSaw will not turn at all or turns too slowly
Repair or replaceValve block defect
Disconnect power source and try to turn the
motor shaft by hand. Repair or replace
Motor defect
Repair or replacePower supply defectSaw does not develop enough torque
(insufficient power to cut material)
Repair or replaceMotor defect
Machine data
LS 16LS 14Type
10.6 kg (23.4 lb)9.8 kg (21.6 lb)Weight without hoses and blade
20-40 lpm (5-10 US gal/min)20-30 lpm (5-8 US gal/min)Oil flow range
170 bar (2500 psi)170 bar (2500 psi)Max pressure relief valve setting on power
source
C, D and EC and DEHTMA category
30 bar (450 psi)30 bar (450 psi)Max back pressure in return line (measured at
saw)
30-70°C (86-158°F)30-70°C (86-158°F)Oil working temperature
8.8 kW (12.0 HP)6.7 kW (9.0 HP)Motor performance (max)
21 Nm (15.5 ft-lbs)16 Nm (11.8 ft-lbs)Motor torque (max)
42-85 m/s (138-279 ft/s)46-75 m/s (151-246 ft/s)Circumferential speed
2000-4000 rpm2500-4000 rpmNumber of revolutions
405 mm (16 in)355 mm (14 in)Blade size
25.4 mm (1 in)25.4 mm (1 in)Arbor hole diameter
160 mm (6.3 in)133 mm (5.2 in)Cutting depth when used handheld
125 mm (4.9 in)100 mm (3.9 in)Cutting depth when mounted in cart
Approx. 2 kWApprox. 1.5 kWRequired cooling capacity
19© 2010 Atlas Copco Construction Tools AB | No. 3392 5042 90b | 2010-01-01
Original instructions
Safety and operating instructionsLS 14, 16, Cart

Noise and vibration data
VibrationNoise
Three axes valuesSound powerSound pressure
Declared valuesDeclared values
ISO 206432000/14/ECISO 11203
B
m/s 2spreads
A
m/s 2value
Lw
guaranteed dB(A)
rel 1pW
Lp
r=1m dB(A) rel
20µPaType
1.004.909986LS 14 (Ø405 mm, 20 lpm)
1.105.009986LS 14 (Ø405 mm, 30 lpm)
1.004.90115102LS 16 (Ø405 mm, 20 lpm)
1.105.00115102LS 16 (Ø405 mm, 30 lpm)
2.008.30115102LS 16 (Ø405 mm, 40 lpm)
Noise and vibration declaration statement
Guaranteed sound power level Lw according to ISO 3744 in accordance with directive 2000/14/EC.
Sound pressure level Lp according to ISO 11203.
Vibration value Aand uncertainty Bdetermined according to ISO 20643. See table ”Noise and vibration data”
for the values of A, B, etc.
These declared values were obtained by laboratory type testing in accordance with the stated directive or
standards and are suitable for comparison with the declared values of other tools tested in accordance with
the same directive or standards. These declared values are not suitable for use in risk assessments and values
measured in individual work places may be higher. The actual exposure values and risk of harm experienced
by an individual user are unique and depend upon the way the user works, in what material the machine is
used, as well as upon the exposure time and the physical condition of the user, and the condition of the machine.
We, Atlas Copco Construction Tools AB, cannot be held liable for the consequences of using the declared
values, instead of values reflecting the actual exposure, in an individual risk assessment in a work place situation
over which we have no control.
This tool may cause hand-arm vibration syndrome if its use is not adequately managed. An EU guide to managing
hand-arm vibration can be found at http://www.humanvibration.com/EU/VIBGUIDE.htm
We recommend a programme of health surveillance to detect early symptoms which may relate to vibration
exposure, so that management procedures can be modified to help prevent future impairment.
© 2010 Atlas Copco Construction Tools AB | No. 3392 5042 90b | 2010-01-01
Original instructions
20
LS 14, 16, CartSafety and operating instructions