Bosch Power Tools CS5 User Manual
BM 1619P06013 06-07 6/14/07 3:42 PM Page 1
IMPORTANT: IMPORTANT : IMPORTANTE:
Read Before Using Lire avant usage Leer antes de usar
Operating/Safety Instructions
Consignes de fonctionnement/sécurité
Instrucciones de funcionamiento y seguridad
CS5
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BM 1619P06013 06-07 6/14/07 3:42 PM Page 2
General Safety Rules
R
WARNING
!
all of the warnings listed below refers to your mains-operated (corded) power tool or batteryoperated (cordless) power tool.
ead all instructions. Failure to follow all instructions listed below may
r
esult in electric shock, fire and/or serious injury.
T
he term “power tool” in
SAVE THESE INSTRUCTIONS
Work area safety
Keep work area clean and well lit.
Cluttered or dark areas invite accidents.
Do not operate power tools in explosive
atmospheres, such as in the presence of
flammable liquids, gases or dust.
tools create sparks which may ignite the dust
or fumes.
Keep children and bystanders away while
operating a power tool.
cause you to lose control.
Distractions can
Power
Electrical safety
Power tool plugs must match the outlet.
Never modify the plug in any way. Do not
use any adapter plugs with earthed
(grounded) power tools.
and matching outlets will reduce risk of
electric shock.
Avoid body contact with earthed or
grounded surfaces such as pipes,
radiators, ranges and refrigerators.
is an increased risk of electric shock if your
body is earthed or grounded.
Do not expose power tools to rain or wet
conditions.
increase the risk of electric shock.
Do not abuse the cord. Never use the cord
for carrying, pulling or unplugging the
power tool. Keep cord away from heat, oil,
sharp edges or moving parts.
entangled cords increase the risk of electric
shock.
When operating a power tool outdoors,
use an extension cord suitable for
outdoor use.
outdoor use reduces the risk of electric
shock.
Do not use AC only rated tools with a DC
power supply.
work, the electrical components of the AC
rated tool are likely to fail and create a
hazard to the operator.
Water entering a power tool will
Use of a cord suitable for
While the tool may appear to
Unmodified plugs
There
Damaged or
If operating the power tool in damp
locations is unavoidable a Ground Fault
Circuit Interrupter (GFCI) must be used to
supply the power to your tool.
personal protection devices like electrician’s
rubber gloves and footwear will further
enhance your personal safety.
GFCI and
Personal safety
Stay alert, watch what you are doing and
use common sense when operating a
power tool. Do not use a power tool while
you are tired or under the influence of
drugs, alcohol or medication.
inattention while operating power tools may
result in serious personal injury.
Use safety equipment. Always wear eye
protection.
mask, non-skid safety shoes, hard hat, or
hearing protection used for appropriate
conditions will reduce personal injuries.
Avoid accidental starting. Ensure the
switch is in the off-position before
plugging in.
finger on the switch or plugging in power
tools that have the switch on invites
accidents.
Remove any adjusting key or wrench
before turning the power tool on.
or a key left attached to a rotating part of the
power tool may result in personal injury.
Do not overreach. Keep proper footing
and balance at all times.
better control of the power tool in unexpected
situations.
Dress properly. Do not wear loose
clothing or jewelry. Keep your hair,
clothing and gloves away from moving
parts.
be caught in moving parts.
If devices are provided for the connection
of dust extraction and collection facilities,
ensure these are connected and properly
used.
related hazards.
Safety equipment such as dust
Carrying power tools with your
Loose clothes, jewelry or long hair can
Use of these devices can reduce dust-
-2-
A moment of
A wrench
This enables
BM 1619P06013 06-07 6/14/07 3:42 PM Page 3
Keep handles dry, clean and free from oil
and grease.
c
ontrol the power tool.
Slippery hands cannot safely
Power tool use and care
Do not force the power tool. Use the
correct power tool for your application.
T
he correct power tool will do the job better
and safer at the rate for which it was
designed.
Do not use the power tool if the switch
does not turn it on and off.
that cannot be controlled with the switch is
dangerous and must be repaired.
Disconnect the plug from the power
source and/or the battery pack from the
power tool before making any
adjustments, changing accessories, or
storing power tools.
measures reduce the risk of starting the
power tool accidentally.
Store idle power tools out of the reach of
children and do not allow persons
unfamiliar with the power tool or these
instructions to operate the power tool.
Power tools are dangerous in the hands of
untrained users.
Maintain power tools. Check for
misalignment or binding of moving parts,
breakage of parts and any other condition
that may affect the power tools operation.
If damaged, have the power tool repaired
before use.
poorly maintained power tools.
Many accidents are caused by
Any power tool
Such preventive safety
Keep cutting tools sharp and clean.
Properly maintained cutting tools with sharp
c
utting edges are less likely to bind and are
easier to control.
Use the power tool, accessories and tool
bits etc., in accordance with these
instructions and in the manner intended
for the particular type of power tool,
taking into account the working
conditions and the work to be performed.
Use of the power tool for operations different
from those intended could result in a
hazardous situation.
Use clamps or other practical way to
secure and support the workpiece to a
stable platform.
or against your body is unstable and may
lead to loss of control.
Holding the work by hand
Service
Have your power tool serviced by a
qualified repair person using only identical
replacement parts.
safety of the power tool is maintained.
Develop a periodic maintenance schedule
for your tool. When cleaning a tool be
careful not to disassemble any portion of
the tool since internal wires may be
misplaced or pinched or safety guard
return springs may be improperly
mounted.
gasoline, carbon tetrachloride, ammonia, etc.
may damage plastic parts.
Certain cleaning agents such as
This will ensure that the
SAVE THESE INSTRUCTIONS
Safety Rules for Circular Saws
!
WARNING
!
DANGER
Keep your second hand on auxiliary
handle, or motor housing.
holding the saw, they cannot be cut by the
blade.
Adjust the cutting depth to the thickness of
the workpiece.
blade teeth should be visible below the
workpiece.
Read all safety warnings and all instructions.
Cutting procedures
Keep hands away from
cutting area and blade.
If hands are
Less than a full tooth of the
Do not reach underneath the workpiece.
The guard cannot protect you from the blade
below the workpiece.
NEVER hold piece being cut in your hands
or across your leg. Secure the workpiece to
stable platform.
work properly to minimize body exposure,
blade binding, or loss of control.
Hold power tool by the insulated gripping
surfaces when performing an operation
where the cutting tool may contact hidden
It is important to support the
-3-
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wiring or it own cord. Contact with a "live" wire
will also make exposed metal parts of the tool
“live” and shock the operator.
When ripping always use a rip fence or
straight edge guide.
of cut and reduces the chance for blade
binding.
Always use blades with correct size and
shape (diamond vs. round) of arbor holes.
Blades that do not match the mounting
hardware of the saw will run eccentrically,
causing loss of control.
Never use damaged or incorrect blade
washers or bolts.
were specially designed for your saw, for
optimum performance and safety of operation.
Inspect the condition and quality of the
wood and remove all nails from lumber
before cutting.
pressure treated lumber require special
attention during cutting operation to prevent
kickback.
Hold the saw firmly to prevent loss of
control.
typical hand support of the saw.
Depending upon use, the switch may not
last the life of the saw. If the switch should
fail in the “OFF” position, the saw may not
start. If it should fail while the saw is
running, the saw may not shut off.
occurs, unplug the saw immediately and do not
use until repaired.
This circular saw should not be mounted to
a table and converted to a table saw.
Circular saws are not designed or intended to
be used as table saws.
Figures in this manual illustrate
This improves accuracy
The blade washers and bolt
Wet lumber, green lumber or
If either
Kickback and related warnings
Causes and operator prevention of
Kickback is a sudden reaction to a pinched,
bound or misaligned saw blade, causing an
uncontrolled saw to lift up and out of the
workpiece toward the operator.
When the blade is pinched or bound tightly by
the kerf closing down, the blade stalls and the
motor reaction drives the unit rapidly back
toward the operator.
If the blade becomes twisted or misaligned in
the cut, the teeth at the back edge of the blade
can dig into the top surface of the wood
causing the blade to climb out of the kerf and
jump back toward the operator.
kickback:
Kickback is the result of tool misuse and/or
incorrect operating procedures or conditions
and can be avoided by taking proper
precautions as given below:
Maintain a firm grip with both hands on the
saw and position your body and arm to
allow you to resist kickback forces.
Position your body to either side of the
blade, but not in line with the blade.
Kickback could cause the saw to jump
backwards, but kickback forces can be
controlled by the operator, if proper
precautions are taken.
When blade is binding, or when interrupting
a cut for any reason, release the trigger and
hold the saw motionless in the material
until the blade comes to a complete stop.
Never attempt to remove the saw from the
work or pull the saw backward while the
blade is in motion or kickback may occur.
Investigate and take corrective action to
eliminate the cause of blade binding.
When restarting a saw in a workpiece,
center the saw blade in the kerf and check
that saw teeth are not engaged into the
material.
up or kickback from the workpiece as the saw
is restarted.
Support large panels to minimize the risk of
blade pinching and kickback.
tend to sag under their own weight. Supports
must be placed under the panel on both sides,
near the line of cut and near the edge of the
panel.
Do not use dull or damaged blade.
Unsharpened or improperly set blades
produce narrow kerf causing excessive friction,
blade binding and kickback.
Blade depth and bevel adjusting locking
levers must be tight and secure before
making cut.
cutting, it may cause binding and kickback.
Use extra caution when making a “Plunge
Cut” into existing walls or other blind
areas.
that can cause kickback.
The blade washers and the bolt on your
saw have been designed to work as a
clutch to reduce the intensity of a kickback.
Understand the operation and settings of
the VARI-TORQUE CLUTCH.
setting of the clutch, combined with firm
handling of the saw will allow you to control
kickback.
If saw blade is binding, it may walk
Large panels
If blade adjustment shifts while
The protruding blade may cut objects
The proper
-4-
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Never place your hand behind the saw
Kickback could cause the saw to jump
blade.
b
ackwards over your hand.
Do not use the saw with an excessive
depth of cut setting.
exposure increases the likelihood of the blade
t
wisting in the kerf and increases the surface
area of the blade available for pinching that
leads to kickback.
Too much blade
VARI-TORQUE
CLUTCH
Lower guard function
Check lower guard for proper closing
before each use. Do not operate saw if
lower guard does not move freely and
close instantly. Never clamp or tie the lower
guard into the open position.
accidentally dropped, lower guard may be
bent. Raise the lower guard only with the
Lower Guard Lift Lever and make sure it
moves freely and does not touch the blade or
any other part, in all angles and depths of cut.
Check the operation of the lower guard
spring. If the guard and the spring are not
operating properly, they must be serviced
before use.
sluggishly due to damaged parts, gummy
deposits, or a buildup of debris.
Lower guard may operate
If saw is
Lower guard should be retracted manually
only for special cuts such as “Plunge Cuts”
a
nd “Compound Cuts”. Raise lower guard
by lower guard Lift lever and as soon as
blade enters the material, lower guard must
be released.
guard should operate automatically.
Always observe that the lower guard is
covering the blade before placing saw
down on bench or floor.
coasting blade will cause the saw to walk
backwards, cutting whatever is in its path. Be
aware of the time it takes for the blade to stop
after switch is released.
Do not run the tool while carrying it at your
side. Lower guard may be opened by a
contact with your clothing.
contact with the spinning saw blade could
result in serious personal injury.
Periodically remove the blade, clean the
upper, lower guards and the hub area with
kerosene and wipe it dry, or blow it clean
with compressed air.
and properly operating guard will reduce the
probability of an accident.
WARNING
!
grinding, drilling, and other construction
activities contains chemicals known to
cause cancer, birth defects or other
reproductive harm. Some examples of
these chemicals are:
• Lead from lead-based paints,
• Crystalline silica from bricks and cement and
other masonry products, and
• Arsenic and chromium from chemically-
treated lumber.
Your risk from these exposures varies,
depending on how often you do this type of
work. To reduce your exposure to these
chemicals: work in a well ventilated area, and
work with approved safety equipment, such as
those dust masks that are specially designed
to filter out microscopic particles.
For all other sawing, the lower
An unprotected,
Accidental
Preventive maintenance
Some dust created by
power sanding, sawing,
-5-
0
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Symbols
IMPORTANT: Some of the following symbols may be used on your tool. Please study them
and learn their meaning. Proper interpretation of these symbols will allow you to operate the
tool better and safer.
Symbol Name Designation/Explanation
V Volts Voltage (potential)
A Amperes Current
Hz Hertz Frequency (cycles per second)
W Watt Power
kg Kilograms Weight
min Minutes Time
s Seconds Time
Diameter Size of drill bits, grinding wheels, etc.
n
0
.../min Revolutions or reciprocation per minute Revolutions, strokes, surface speed,
0 Off position Zero speed, zero torque...
1, 2, 3, ... Selector settings Speed, torque or position settings.
I, II, III, Higher number means greater speed
No load speed Rotational speed, at no load
orbits etc. per minute
Infinitely variable selector with off Speed is increasing from 0 setting
Arrow Action in the direction of arrow
Alternating current Type or a characteristic of current
Direct current Type or a characteristic of current
Alternating or direct current Type or a characteristic of current
Class II construction Designates Double Insulated
Construction tools.
Earthing terminal Grounding terminal
Warning symbol Alerts user to warning messages
Ni-Cad RBRC seal Designates Ni-Cad battery recycling
program
This symbol designates
that this tool is listed by
Underwriters Laboratories.
This symbol designates
that this tool is listed to
Canadian Standards by
Underwriters Laboratories.
This symbol
designates
that
this tool
complies
to NOM
Mexican
Standards.
This symbol designates
that this tool is listed by
the Canadian Standards
Association.
This symbol designates that
this tool is listed by
Underwriters Laboratories,
and listed to Canadian
Standards by Underwriters
Laboratories.
-6-
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Functional Description and Specifications
WARNING
!
Disconnect the plug from the power source before making any
assembly, adjustments or changing accessories
measures reduce the risk of starting the tool accidentally.
Circular Saw
FIG. 1
TRIGGER SWITCH
LOCK LEVER
AUXILIARY
HANDLE
BEVEL SCALE
BEVEL
ADJUSTMENT
LEVER
QUADRANT
. Such preventive safety
UPPER GUARD
LOWER GUARD
LIFT LEVER
FOOT
LOWER GUARD
CALIBRATED DEPTH
BRACKET
Maximum Capacities
Model CS5
Blade 7-1/4"
Blade arbor hole
Depth of cut at 90° 2-7/16"
Depth of cut at 45° 1-13/16"
5/8" Round
VENTILATION
OPENINGS
DEPTH ADJUSTMENT
LEVER
BLADE WRENCH &
STORAGE AREA
NOTE: For tool specifications refer
to the nameplate on your tool.
-7-
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Assembly
5
A
TTACHING THE BLADE
!
WARNING
Disconnect the plug from
the power source before
making any assembly, adjustments or
changing accessories
. Such preventive
safety measures reduce the risk of starting the
tool accidentally.
1. Turn BLADE STUD with wrench provided
clockwise and remove BLADE STUD and
OUTER WASHER (Fig. 2). If the shaft moves
while attempting to loosen the blade stud
press the lock lever (Fig. 2).
2. Retract the lower guard all the way up into
the upper guard. While retracting the lower
guard, check operation and condition of the
LOWER GUARD SPRING.
3. Make sure the saw teeth and arrow on the
blade point in the same direction as the arrow
on the lower guard.
4. Slide blade through slot in the foot and
mount it against the INNER WASHER on the
shaft. Be sure the large diameter of the INNER
and OUTER washers lay flush against the blade.
. Reinstall OUTER WASHER. First tighten
BLADE STUD finger tight, then TIGHTEN
BLADE STUD 1/8 TURN (45˚) WITH THE
WRENCH PROVIDED.
Do not use wrenches with longer handles,
since it may lead to over tightening of the
blade stud.
This clutching action is provided by the friction
of the OUTER WASHER against the BLADE
and permits the blade shaft to turn when the
blade encounters excessive resistance. When
the BLADE STUD is properly tightened (as
described in No. 5 of Attaching The Blade), the
blade will slip when it encounters excessive
resistance, thus reducing saw’s tendency to
KICKBACK.
One setting may not be sufficient for cutting all
materials. If excessive blade slippage occurs,
tighten the blade stud a fraction of a turn more
(less than 1/8 turn). OVERTIGHTENING THE
BLADE STUD NULLIFIES THE EFFECTIVENESS OF THE CLUTCH.
VARI-TORQUE CLUTCH
LOCK LEVER
LOWER GUARD
INNER WASHER
Large Diameter
Faces Blade
UPPER GUARD
-8-
LOWER GUARD LIFT LEVER
LOWER GUARD SPRING
BLADE SHAFT
BLADE
OUTER WASHER
Large Diameter
Faces Blade
Loosen
FIG. 2
BLADE
STUD
Tighten
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Operating Instructions
D
isconnect plug from power source. Loosen
the depth adjustment lever located in the
housing of saw. Hold the foot down with one
hand and raise or lower saw by the handle.
FIG. 3
DEPTH ADJUSTMENT
CALIBRATED DEPTH
BRACKET
DEPTH
ADJUSTMENT
LEVER
FOOT
BLADE WRENCH
& STORAGE AREA
90° CUTTING ANGLE CHECK
Disconnect plug from power source. Set foot to
maximum depth of cut setting. Loosen bevel
adjustment lever, set to 0° on quadrant,
retighten lever and check for 90
° angle
between the blade and bottom plane of foot
with a square (Fig. 5). Make adjustments by
turning the small alignment screw, if necessary.
Tighten lever at the depth setting desired.
C
heck desired depth (Fig. 3).
Not more than one tooth length of the blade
should extend below the material to be cut, for
minimum splintering (Fig. 4).
FIG. 4
ONE TOOTH LENGTH SHOULD
PENETRATE WOOD FOR
MINIMUM SPLINTERING
FIG. 5
BEVEL
ADJUSTMENT
LEVER
90°
ALIGNMENT
SCREW
FOOT
BLADE
Disconnect plug from power source. The foot
BEVEL ADJUSTMENT
can be adjusted up to 56° by loosening the
bevel adjustment lever at the front of the saw.
Align to desired angle on calibrated quadrant.
Then tighten bevel adjustment lever (Fig. 6).
Because of the increased amount of blade
engagement in the work and decreased
stability of the foot, blade binding may occur.
Keep the saw steady and the foot firmly on the
workpiece.
-9-
FIG. 6
BEVEL
ADJUSTMENT
LEVER
QUADRANT
0º 45º
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For a straight 90° cut, use left side of notch in
the foot. For 45°-56° bevel cuts, use the right
side (Fig. 7). The cutting guide notch will give
a
n approximate line of cut. Make sample cuts
in scrap lumber to verify actual line of cut. This
will be helpful because of the number of
different blade types and thicknesses available.
To ensure minimum splintering on the good
side of the material to be cut, face the good
side down.
!
WARNING
The torque from the motor can cause the tool
to twist.
To turn tool “ON”, squeeze the trigger switch.
To turn the tool “OFF”, release the trigger
switch, which is spring loaded and will return
to the off position automatically.
Your saw should be running at full speed
BEFORE starting the cut, and turned off only
AFTER completing the cut. To increase switch
life, do not turn switch on and off while cutting.
Always hold the saw handle with one hand
and the auxiliary handle or housing with the
other.
!
WARNING
free movement of the lower guard.
Maintain a firm grip and operate the switch
with a decisive action. Never force the saw.
Use light and continuous pressure.
!
WARNING
released, be aware of the necessary time it
takes for the blade to come to a complete
stop during coast down. Do not allow the
saw to brush against your leg or side,
since the lower guard is retractable, it
could catch on your clothing and expose
the blade. Be aware of the necessary blade
exposures that exist in both the upper and
lower guard areas.
LINE GUIDE
SWITCH
When starting the tool,
hold it with both hands.
GENERAL CUTS
Always be sure either hand
does not interfere with the
After completing a cut and
the trigger has been
90°
VERTICAL
CUTS
When cutting is interrupted, to resume cutting:
squeeze the trigger and allow the blade to
reach full speed, re-enter the cut slowly and
resume cutting.
When cutting across the grain, the fibers of
the wood have a tendency to tear and lift.
Advancing the saw slowly minimizes this
effect. For a finished cut, a cross cut blade or
miter blade is recommended.
CUTTING MASONRY/METAL
This tool is not recommended for usage with
metal or masonry cut-off wheels.
!
WARNING
saw.
The dust from metal or masonry cutting
will cause the lower guard to become sluggish
and may not close fully and quickly after
cutting these materials.
!
WARNING
materials or environments.
may produce sparks that could ignite
flammable materials and cause explosion
hazards.
!
WARNING
feed devices with this circular saw.
Masonry cutting waste will enter the lower
guard system, harden and cause the guard to
become inoperable. Use of water in masonry
cutting applications with an electric circular
saw will cause electric shock hazards.
45°
BEVEL
CUTS
Do not cut metal or
masonry with this circular
Do not cut with abrasive
wheels around flammable
Abrasive cutting
Do not use Wet Diamond
cutting off wheel or water
FIG. 7
-10-
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Disconnect the plug from the power source
before making adjustments. Set depth adjustment according to material to be cut. Tilt saw
forward with cutting guide notch lined up with
the line you’ve drawn. Raise the lower guard,
u
sing lift lever and hold the saw by the front and
rear handles (Fig. 8).
With the blade just clearing the material to be
cut, start the motor. Gradually lower the back
end of saw using the front end of the foot as the
hinge point.
WARNING
!
guard immediately.
the surface being cut, proceed cutting in forward
direction to end of cut.
WARNING
!
the saw from cut.
backward since blade will climb out of the
material and KICKBACK will occur.
Large sheets and long boards sag or bend,
depending on support. If you attempt to cut
without leveling and properly supporting the
piece, the blade will tend to bind, causing
KICKBACK and extra load on the motor
(Fig. 9).
Support the panel or board close to the cut, as
shown in (Fig. 10). Be sure to set the depth of
PLUNGE CUTS
As blade starts cutting the
material, release the lower
When the foot rests flat on
Allow blade to come to a
complete stop before lifting
Also, never pull the saw
CUTTING LARGE SHEETS
Turn saw around and finish the cut in the normal
manner, sawing forward. If corners of your
pocket cut are not completely cut through, use a
jigsaw or hand saw to finish the corners.
FIG. 8
FOOT
LINE GUIDE
the cut so that you cut through the sheet or
board only and not the table or work bench. The
two-by-fours used to raise and support the work
should be positioned so that the broadest sides
support the work and rest on the table or bench.
Do not support the work with the narrow sides
as this is an unsteady arrangement. If the sheet
or board to be cut is too large for a table or work
bench, use the supporting two-by-fours on the
floor and secure.
LOWER GUARD
LIFT LEVER
FIG. 9
WRONG
FIG. 10
RIGHT
-11-
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R
T
he combination blade provided with your saw
is for both cross cuts and rip cuts. Ripping is
cutting lengthwise with the grain of the wood.
Rip cuts are easy to do with a rip fence
(Fig. 11). Rip Fence is available as an
accessory (not included). To attach fence, insert
fence through slots in foot to desired width as
shown and secure with the thumb screw (not
included).
IP CUTS
FIG. 11
THUMB
SCREW
RIP
FENCE
DESIRED WIDTH
OF CUT
R
W
hen rip cutting large sheets, the rip fence
may not allow the desired width of cut.
Clamp or nail a straight piece of 1" (25 mm)
lumber to the sheet as a guide (Fig. 12).
Use the right side of the foot against the board
guide.
IP BOARD GUIDE
FIG. 12
RIP BOARD
GUIDE
DESIRED LINE
OF CUT
Maintenance
Service
WARNING
!
personnel may result in misplacing of
internal wires and components which
could cause serious hazard.
recommend that all tool service be performed
by a Bosch Factory Service Center or
Authorized Bosch Service Station.
Your Bosch tool has been properly lubricated
and is ready to use. It is recommended that
tools with gears be regreased with a special
gear lubricant at every brush change.
The brushes and commutator in your tool
have been engineered for many hours of
dependable service. To maintain peak
efficiency of the motor, we recommend every
two to six months the brushes be examined.
Only genuine Bosch replacement brushes
specially designed for your tool should be
used.
Preventive maintenance
performed by unauthorized
We
TOOL LUBRICATION
CARBON BRUSHES
After about 300-400 hours of operation, or at
every second brush change, the bearings
should be replaced at Bosch Factory Service
Center or Authorized Bosch Service Station.
Bearings which become noisy (due to heavy
load or very abrasive material cutting) should
be replaced at once to avoid overheating or
motor failure.
BEARINGS
Cleaning
WARNING
!
the power supply before cleaning or
performing any maintenance.
be cleaned most effectively with compressed
dry air.
cleaning tools with compressed air.
Ventilation openings and switch levers must
be kept clean and free of foreign matter. Do
not attempt to clean by inserting pointed
objects through openings.
Always wear safety goggles when
-12-
To avoid accidents always
disconnect the tool from
The tool may
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