alzaTools AT-CBCS20V User manual

Cordless Brushless Circular Saw
AT-CBCS20V
User Manual

ENGLISH 4
DEUTSCH 17
ČESKY 31
SLOVENSKY 44
MAGYAR 57

4ENGLISH
EXPLANATION OF SYMBOLS ON THE PRODUCT PACKAGING/TYPE LABEL
Read the operating instructions careful-
ly before use! Wear protective gloves
Wear mouth and nose protection. Wear noise protection.
Wear protective glasses Do not throw batteries into water!
Observe the safety instructions con-
cerning recoil and the safety precau-
tions.
Always remove the battery during
work, transport, storage, maintenance
or repair.
Protect from rain and moisture. Protect from heat and fire.
Ensure proper recycling of the product
at the end of its service life and all pack-
aging materials.
Do not dispose of batteries with normal
household waste.
Do not throw batteries into a fire! Do not expose batteries to excessive
temperatures above 50 °C.
WARNING:
Class 2 laser product. Do not look into the la-
ser beam.
GENERAL SAFETY INSTRUCTIONS FOR POW-
ER TOOLS
WARNING! All safety instructions, user man-
uals, images and regulations supplied with
these tools must be read. Failure to follow all
of the following instructions may result in elec-
tric shock, fire, and/or serious personal injury.
All instructions and the user manual must be
kept for future reference.
Safety of working environment
1. The workplace must be kept clean and well lit.
Untidy and dark spaces are often the cause of
accidents.
2. Power tools must not be used in potentially ex-
plosive atmospheres, such as in the presence
of flammable liquids, gases or dust. Power tools
create sparks that can ignite dust or fumes.
3. Children and other persons must be kept away
when using power tools. If the operator is dis-
turbed, he/she may lose control of the opera-
tion.
Electrical safety
1. The plug on the power tool's flexible lead must
match the power outlet. The plug must never
be modified in any way. No socket adapters
may be used with tools that have a protective
earth connection. Plugs and respective sockets
that are rendered unusable will reduce the risk
of electric shock.
2. The operator must not touch grounded ob-
jects, such as pipes, central heating units,
cookers and refrigerators. The risk of electric
shock is greater if your body is connected to
the ground.
3. Power tools must not be exposed to rain, mois-
ture or wetness. If water enters the power tool,
the risk of electric shock increases.
4. The flexible supply must not be used for other
SAFETY INSTRUCTIONS

5ENGLISH
purposes. The power tool must not be carried
or pulled by the cord, nor must the plug be
unplugged from the socket. The inlet must be
protected from heat, grease, sharp edges or
moving parts. Damaged or tangled leads in-
crease the risk of electric shock.
5. If the power tool is used outdoors, an exten-
sion cord suitable for outdoor use must be
used. Using an extension cord for outdoor use
reduces the risk of electric shock.
6. If the power tool is used in a humid environ-
ment, a residual current device (RCD) must be
used. Using an RCD reduces the risk of electric
shock.
Safety of persons
1. When using a power tool, the operator must
be careful, pay attention to what he/she is do-
ing, and concentrate and think clearly. Power
tools must not be used if the operator is tired
or under the influence of drugs, alcohol or
medication. Momentary inattention while us-
ing a power tool can result in serious personal
injury.
2. Use personal protective equipment. Always
use eye protection. Protective equipment such
as a respirator, non-slip safety shoes, hard hat
and hearing protection, used in accordance
with the working conditions, reduces the risk
of personal injury.
3. Unintentional starting of the machine must be
avoided. Make sure that the switch is in the
off position before plugging in and/or con-
necting the battery pack, lifting or carrying
the tool. Carrying a tool with your finger on
the switch or plugging in a tool fork with the
switch on can cause injury.
4. All adjusting tools or wrenches must be re-
moved before turning on the tool. An adjust-
ing tool or wrench that remains attached to
the rotating part of the power tool may result
in personal injury.
5. The operator must only work where he/she
can safely reach. The operator must always
maintain a stable posture and balance. This
will allow better control of the power tool in
unforeseen situations.
6. Dress appropriately. Do not wear loose cloth-
ing or jewellery. The operator must make sure
that his/her hair and clothing are a sufficient
distance away from moving parts. Loose cloth-
ing, jewellery and long hair can be caught in
moving parts.
7. Where equipment is provided for connecting
dust extraction and collection facilities, care
must be taken to ensure that it is connected
and used correctly. The use of such equip-
ment can reduce hazards caused by dust.
8. The operator must not allow the routine that
results from the frequent use of the tools, to
cause them to become complacent and ig-
nore the principles of tool safety. Careless
activity can cause serious injuries in a split
second.
Use and the maintenance of power tools
1. Power tools must not be overloaded. It is es-
sential to use the correct power tool for the
work being carried out. The correct power tool
will do the work it was designed to do better
and safer.
2. Power tools that cannot be turned on and off
with the switch must not be used. Any power
tool that cannot be operated with the switch is
dangerous and must be repaired.
3. Before making any adjustments, changing ac-
cessories, or storing power tools, unplug the
power tool and/or remove the battery pack
from the power tool if it is removable. These
precautions reduce the risk of accidentally
starting the power tool.
4. Unused power tools must be stored out of the
reach of children. Persons unfamiliar with the
power tool or these instructions must not be
allowed to use the power tool. Power tools
are dangerous in the hands of inexperienced
users.
5. Power tools and accessories must be main-
tained. The adjustment of moving parts and
their mobility must be checked and attention
focused on cracks, broken parts and any other
circumstances that may jeopardize the func-
tion of the power tool. If the tool is damaged, it
must be repaired before use. Many accidents
are caused by poorly maintained power tools.
6. Cutting tools must be kept sharp and clean.
Properly maintained and sharpened cutting
tools are less likely to catch on material or jam
and are easier to control.
7. Power tools, accessories and tool bits etc.
must be used in accordance with these in-
structions and in the manner intended for the
SAFETY INSTRUCTIONS

6ENGLISH
SAFETY INSTRUCTIONS
particular power tool, taking into account the
working conditions and the work to be carried
out. Using power tools for activities other than
those for which they are designed can lead to
dangerous situations.
8. Handles and grip surfaces must be kept dry,
clean and free of grease. Slippery handles and
gripping surfaces mean the tool cannot be
held and controlled in unexpected situations.
Service
1. Power tool repairs must be carried out by
qualified personnel using identical spare
parts. This will ensure the same level of safety
of the power tool as before the repair.
USE AND MAINTENANCE OF CORDLESS
TOOLS
1. The tool must only be charged with the charg-
er specified by the manufacturer. A charger
that may be suitable for one type of battery
pack may present a fire hazard when used with
another battery pack.
2. The tool must only be used with a battery pack
that is specifically designed for the tool. The
use of any other battery pack may present
a risk of injury or fire.
3. When the battery set is not used, the battery
pack must be protected from contact with oth-
er metal objects, such as paper clips, coins,
keys, nails, screws or other small metal objects
that can cause one battery contact to come
into contact with another. Short-circuiting the
battery terminals may cause burns or fire.
SAFETY INSTRUCTIONS FOR ALL SAWS
When cutting
1. DANGER: The operator must ensure that his/
her hands are at a safe distance from the cut-
ting point and the saw blade. The other hand
must be used to grip the auxiliary handle or
the motor housing. If the saw is held with both
hands, the hands cannot be cut with the blade.
2. Do not touch the workpiece. The protective
cover cannot protect the operator from touch-
ing the blade under the workpiece.
3. The depth of cut must be adapted to the thick-
ness of the workpiece. The visible part of the
saw blade teeth under the workpiece should
be less than the height of one tooth.
4. The workpiece must never be held in the hand
or over the knee when cutting. The workpiece
must be mounted on a solid base. It is impor-
tant that the workpiece is properly supported
and that the risk of touching any part of the
body, the blade jamming, or loss of control is
reduced to the minimum.
5. When performing an operation where the cut-
ting tool may touch a hidden guide or its own
power supply, the power tool must be held
by insulated gripping surfaces. Contact with
a “live” wire will cause the uninsulated metal
parts of the power tool to become “live” and
may cause an electric shock to the user.
6. When cutting longitudinally, it is always neces-
sary to use a longitudinal ruler or a guide with
a straight edge. This improves cutting accura-
cy and reduces the risk of the blade getting
stuck.
7. Discs with clamping holes of the correct size
and shape (diamond or circular) must always
be used. Saw blades that do not exactly match
the saw's clamping components will not be
centred and will cause a loss of control.
8. Damaged or incorrect washers or screws must
never be used to clamp the blade. The wash-
ers and screws for clamping the blade have
been specially designed for your saw for opti-
mum performance and work safety.
Causes of recoil and related warnings
Recoil is a sudden reaction of a pinched, blocked
or misaligned saw blade resulting in an uncon-
trolled upward movement of the saw upwards
and away from the workpiece towards the oper-
ator;
•If the saw disc is clamped or completely
blocked by the clamping cut, it stops, and the
reaction force of the motor causes the saw to
be thrown back quickly towards the operator;
•If the saw disc is rotated or misaligned in the
cut, the teeth on the rear edge of the disc may
hit the wood surface from above, the disc will
jump out of the cut and the saw will be thrown
back towards the operator.
Recoil is the result of improper use of the saw
and/or improper work procedures or conditions
and can be prevented by fully complying with
the above precautions.
•The saw must always be held firmly with both
hands and the arms in a position that it can

7ENGLISH
withstand the force of the recoil. The body
of the operator must be on one side of the
blade, but not in the plane of the blade. Recoil
can cause the saw to be thrown back, but the
force caused by the recoil can be handled by
the user taking the appropriate safety precau-
tions.
•If the saw blade becomes stuck or if it is nec-
essary to interrupt the cut for any reason, the
switch control must be released, and the saw
held in place in the material until the saw blade
comes to a complete stop. The operator must
never attempt to lift the saw from the cut or
pull it back while the saw blade is in motion; in
such cases, recoil may occur. It is necessary to
look for the causes of the saw blade jamming
and ways to eliminate these causes.
•If the saw disc is lowered in the workpiece,
the saw blade must be centred in the cut so
that the saw teeth are not immersed in the ma-
terial. If the saw blade jams, the saw may be
pushed upwards from the workpiece or recoil
may occur.
•Large sawn timber must be supported to min-
imize the risk of recoil and the saw blade jam-
ming. Large sawn timber tends to sag under
its own weight. There must be pads on both
sides under the board near the cut and near
the edges.
•Blunt or damaged saw blades must not be
used. Unsharpened or incorrectly adjusted
saw blades create a narrow cutting groove
and cause excessive friction, which limits the
rotation of the blade and leads to recoil.
•Before cutting, the levers for adjusting the
depth of the cut and the bevel angle of the
saw blade must be sufficiently and reliably
tightened If the disc position changes during
cutting, the blade may jam and recoil may oc-
cur.
•Extra care must be taken when cutting into ex-
isting walls or other places where you cannot
see. A disc that penetrates the other side of
the material can cut into the object, which can
cause recoil.
SAFETY INSTRUCTIONS FOR SAWS WITH
AN EXTERNAL PIVOTING COVER AND SAWS
WITH A TRAILING COVER
Lower protection function
1. Before each use, make sure that the lower
guard is fully closed. Do not operate the saw
unless the lower protection cover moves freely
and engages immediately. The lower protec-
tion cover must never be secured in the open
position, e.g. by clamping or tying. If the saw is
accidentally dropped on the ground, the low-
er guard may bend. The lower protective cov-
er must be opened using the tilting lever and
make sure that it moves freely and does not
touch the saw blade or any other part of the
saw at any opening angle or set depth of cut.
2. The function of the lower guard spring must
be checked. If the protective cover and return
spring does not work properly, these parts
must be repaired before use. The lower guard
may react slowly due to a damaged part, sticky
deposits or dirt.
3. The lower guard may only be opened manu-
ally in special cutting cases, such as "immer-
sion" or "composite" cuts. The protective cov-
er must be opened using the tilting lever and
released as soon as the saw blade penetrates
the material. In all other cutting cases, the low-
er guard should operate automatically.
4. Before placing the saw on a workbench or the
floor, always make sure that the lower guard
covers the saw blade. An unprotected run-
ning-in blade causes the saw to move back-
wards and cut everything in its path. It is im-
portant to note how long it takes to stop the
blade after releasing the switch.
SAFETY INSTRUCTIONS FOR SUBMERSIBLE
SAWS
Protective cover function
1. Before each use, make sure that the protec-
tive cover closes properly. The saw must not
be operated unless the guard moves freely
and immediately covers the saw blade. The
protective cover must never be secured, e.g.
with clamps or tying, in the position where the
saw blade is exposed. If the saw is accidentally
dropped on the ground, the guard may bend.
Make sure that the guard moves freely and
does not touch the blade or any other part of
the saw at any opening angle or set depth of
cut.
2. The function and condition of the protective
cover return spring must be checked. If the
function of the protection cover and its use is
SAFETY INSTRUCTIONS

8ENGLISH
SAFETY INSTRUCTIONS
not correct, these parts must be repaired be-
fore use.The protective cover may react slowly
due to a damaged part, sticky deposits or dirt.
3. If "immersion" cutting is performed, make sure
that the saw base plate does not move during
the "immersion". Moving the blade to the
side results in reduced movement with a high
probability of recoil.
4. Always check that the protective cover covers
the disc before placing the saw on a work-
bench or the floor. An unprotected running-in
blade causes the saw to move backwards and
cut everything in its path. It is important to
note how long it takes to stop the blade after
releasing the switch.
ADDITIONAL SAFETY INSTRUCTIONS FOR
ALL SPACER WEDGE SAWS
Spacer wedge function
1. A suitable saw blade that corresponds to the
spacer wedge must be used. For the spacer
wedge to work, the saw blade body must be
tangent to the spacer wedge and the blade
cutting width must be wider than the spacer
wedge thickness.
2. The spacer wedge must be adjusted as de-
scribed in these operating instructions. Im-
proper distance or position adjustment and
insufficient centring can cause the spacer
wedge to lose its function in terms of recoil
prevention.
3. A spacer wedge must always be used except
when cutting by immersing the blade in the
material. After such cutting, the spacer wedge
must be refitted. When cutting by immersing
the disc in the material, the spacer wedge
strikes the workpiece and can cause recoil.
4. For the spacer wedge to work it must be po-
sitioned in the cutting groove. The spacer
wedge does not prevent recoil in the case of
short cuts.
5. The saw must not be operated if the spacer
wedge is bent. Even light contact with the pro-
tective cover can slow down closing the pro-
tective cover.

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Cordless brushless circular saw
Parameter Value
Battery voltage 20 V DC
Rated speed (no load) 0–4,200 rpm
Bevel cutting range 0–45°
Outer diameter of the cutting edge 1,650 mm
Inner diameter of the cutting edge 20 mm
Cutting thickness at right angle 51 mm
Angle of cut thickness 45° 37 mm
Laser class 2
Laser output <1 mW
Wavelength λ= 650 nm
Protection class III
Weight 2.99 kg
NOISE AND VIBRATION LEVEL PARAMETERS
Sound pressure LpA = 75.86 dB (A) K = 3 dB (A)
Sound power LWA = 86.3 dB (A) K = 3 dB (A)
Vibration acceleration (additional handle) ah = 3.92 m/s2 K = 1.5 m/s2
Vibration acceleration (main handle) ah = 2.18 m/s2 K = 1.5 m/s2
Vibration and noise information
The noise produced by the equipment is defined by: the sound pressure level LpA produced and
the sound power level LwA (where K is the measurement uncertainty). The vibrations produced by
the device are defined with the value of the vibration acceleration ah (where K is the measurement
uncertainty).
Sound pressure LpA Sound power LWA and vibration acceleration ah given in this manual were
measured in accordance with IEC 62841-1. The determined vibration level ah cab is used to compare
the tools and to initially evaluate the vibration exposure.
The stated vibration level is representative of the main equipment applications.
If the device is used for other purposes or with different work tools, the vibration level may change.
Insufficient or infrequent maintenance can increase vibration levels. The above factors can lead to
higher vibration exposure throughout working hours.
To accurately define exposure to vibration, count the periods when the device is off and when it is on
but not used for work.
TECHNICAL DATA

10 ENGLISH
DESCRIPTION