Bosch GKS 190 Operating instructions

1 609 929 H62.book Seite 1 Freitag, 20. Januar 2006 8:31 08
GKS 190
PROFESSIONAL
Operating Instructions
1 609 929 H62.book Seite 2 Freitag, 20. Januar 2006 8:31 08
CORIAN
VARIOCOR
2 • 1 609 929 H62 • 06.01
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2 608 000 322
2 608 000 324
3 • 1 609 929 H62 • 06.01
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1
2
15
14
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12
11
3
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10
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8
9
3 601 E23 Y..
A
3
17 16
18
21
20
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B
D
22
23
26
24
11
C
26
12
2,5 - 5 mm
24
25
F
E
9
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2,5 - 5 mm
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1 609 929 H62.book Seite 1 Freitag, 20. Januar 2006 8:31 08
General Power Tool Safety Warnings
Read all safety warnings and all
instructions. Failure to follow the
warnings and instructions may result in electric
shock, fire and/or serious injury.
Save all warnings and instructions for future
reference.
The term “power tool” in the warnings refers to
your mains-operated (corded) power tool or battery-operated (cordless) power tool.
1) Work area safety
a) Keep work area clean and well lit. Cluttered
or dark areas invite accidents.
b) Do not operate power tools in explosive
atmospheres, such as in the presence of
flammable liquids, gases, or dust. Power
tools create sparks which may ignite the dust
or fumes.
c) Keep children and bystanders away while
operating a power tool. Distractions can
cause you to lose control.
2) Electrical safety
a) 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. Unmodified plugs
and matching outlets will reduce the risk of
electric shock.
b) Avoid body contact with earthed or
grounded surfaces, such as pipes, radiators, ranges and refrigerators. There is an
increased risk of electric shock if your body is
earthed or grounded.
c) Do not expose power tools to rain or wet
conditions. Water entering a power tool will
increase the risk of electric shock.
d) 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. Damaged or
entangled cords increase the risk of electric
shock.
e) When operating a power tool outdoors,
use an extension cord suitable for outdoor use. Use of a cord suitable for outdoor
use reduces the risk of electric shock.
f) If operating a power tool in a damp location is unavoidable, use a ground fault circuit interrupter (GFCI) or an earth leakage
circuit breaker (ELCB). Use of a GFCI or an
ELCB reduces the risk of electric shock.
6 • 1 609 929 H62 • 06.01
3) Personal safety
a) 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. A moment of
inattention while operating power tools may
result in serious personal injury.
b) Use personal protective equipment. Always wear eye protection. Protective
equipment such as dusk mask, non-skid
safety shoes, hard hat or hearing protection
used for appropriate conditions will reduce
personal injuries.
c) Prevent unintentional starting. Ensure the
switch is in the off position before connecting to power source and/or battery
pack, picking up or carrying the tool. Carrying power tools with your finger on the
switch or energizing power tools that have the
switch on invites accidents.
d) Remove any adjusting key or wrench before turning the power tool on. A wrench or
a key that is left attached to a rotating part of
the power tool may result in personal injury.
e) Do not overreach. Keep proper footing
and balance at all times. This enables better
control of the power tool in unexpected situations.
f) Dress properly. Do not wear loose clothing or jewelry. Keep your hair, clothing,
and gloves away from moving parts.
Loose clothes, jewelry, or long hair can be
caught in moving parts.
g) If devices are provided for the connection
of dust extraction and collection facilities,
ensure these are connected and properly
used. Use of dust collection can reduce dustrelated hazards.
4) Power tool use and care
a) Do not force the power tool. Use the correct power tool for your application. The
correct power tool will do the job better and
safer at the rate for which it is designed.
b) Do not use the power tool if the switch
does not turn it on or off. Any power tool
that cannot be controlled with the switch is
dangerous and must be repaired.
English - 1
1 609 929 H62.book Seite 2 Freitag, 20. Januar 2006 8:31 08
c) 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. Such preventive safety measures reduce the risk of starting the power
tool accidentally.
d) 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.
e) Maintain power tools. Check for misalignment or binding of moving parts, breakage of parts and any other condition that
may affect the power tool’s operation. If
damaged, have the power tool repaired
before use. Many accidents are caused by
poorly maintained power tools.
f) Keep cutting tools sharp and clean. Properly maintained cutting tools with sharp cutting edges are less likely to bind and are easier to control.
g) Use the power tool, accessories, tool bits
etc. in accordance with these instructions, 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.
5) Battery tool use and care
a) Recharge only with the charger specified
by the manufacturer. A charger that is suitable for one type of battery pack may create
a risk of fire when used with another battery
pack.
b) Use power tools only with specifically
designated battery packs. Use of any other
battery packs may create a risk of injury and
fire.
c) When battery pack is not in use, keep it
away from other metal objects, like paper
clips, coins, keys, nails, screws or other
small metal objects, that can make a connection from one terminal to another.
Shorting the battery terminals together may
cause burns or a fire.
d) Under abusive conditions, liquid may be
ejected from the battery; avoid contact. If
contact accidentally occurs, flush with
water. If liquid contacts eyes, additionally
seek medical help. Liquid ejected from the
battery may cause irritation or burns.
7 • 1 609 929 H62 • 06.01
6) Service
a) Have your power tool serviced by a qualified repair person using only identical replacement parts. This will ensure that the
safety of the power tool is maintained.
For Your Safety
Read all instructions. Failure to follow all instructions listed below may
result in electric shock, fire and/or
serious injury.
Additionally, the general safety instructions either
in the enclosed booklet or those added in the
center of these operating instructions must be observed.
SAVE THESE INSTRUCTIONS.
■ When working with the power tool, always
hold it firmly with both hands and provide
for a secure stance. Both hands guide a
power tool more securely.
■ Secure the workpiece. A workpiece clamped
with clamping devices or in a vice is held more
secure than by hand.
■ Do not work materials containing asbestos. Asbestos is considered carcinogenic.
■ Take protective measures when dust can
develop during working that is harmful to
one’s health, combustible or explosive. Example: Some dusts are regarded as carcinogenic. Wear a dust mask and work with dust /
chip extraction when connectable.
■ Always wait until the tool has come to a
complete stop before placing it down. The
tool insert can jam and lead to loss of control
over the power tool.
■ Do not use a power tool with a damaged
power cord. Do not touch the damaged
cord and pull the power plug when the cord
is damaged while working. Damaged cords
increase the risk of an electric shock.
■ Connect power tools that are used in the
open via a ground fault circuit interrupter.
■ DANGER: Keep hands away from the cutting area and the blade. Keep your second
hand on the auxiliary handle or the motor
housing. If both hands are holding the saw,
they cannot be cut by the saw blade.
■ Do not reach underneath the work. The
blade guard cannot protect you from the blade
below the work.
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1 609 929 H62.book Seite 3 Freitag, 20. Januar 2006 8:31 08
■ Adjust the depth of cut to the thickness of
the work. Less than a full tooth of the blade
teeth should be visible below the work.
■ Never hold the piece being cut in your
hands or across your leg. Secure the work
on a stable support. It is important to support
the work properly to minimize body exposure,
blade binding, or loss of control.
■ Hold the power tool only by the insulated
gripping surfaces when performing an operation where the cutting tool may contact
hidden wiring or its own power cord. Contact with a “live” wire will also make exposed
metal parts of the power tool “live” and shock
the operator.
■ When ripping always use a rip fence or
straight edge guide. This improves the accuracy of cut and reduces the chance of blade
binding.
■ Always use saw blades with correct size
and shape (diamond versus 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. The blade washers and
bolts were specially designed for your saw, for
optimum performance and safety of operation.
■ Causes and operator prevention of kickback:
– Kickback is a sudden reaction to a pinched,
bound or misaligned saw blade, causing an
uncontrolled saw to lift up and out of the work
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 tool 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 is the result of saw 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 arms to resist kickback forces. Always position yourself to
the side of the saw blade, so that your body
is never in line with the saw blade. Kickback
can cause the saw to jump backwards, but
kickback forces can be controlled by the operator if proper precautions are taken.
8 • 1 609 929 H62 • 06.01
■ In case the saw blade jams or if the sawing
is discontinued, switch the saw off and
hold it 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 the blade binding.
■ When restarting a saw in the work, center
the saw blade in the kerf and check that the
saw teeth are not engaged into the material. If the saw blade is binding, it may travel up
from the work or kick back as the saw is restarted.
■ Support large panels to reduce the risk of
blade pinching and kickback. Large panels
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 saw blades.
Unsharpened or improperly set blades produce narrow kerf causing excessive friction,
blade binding and kickback.
■ Before sawing, tighten the blade depth and
cutting angle adjustments. If the adjustments change during cutting, the saw blade
can jam and kickback can occur.
■ Use extra caution when making “plunge
cuts” into existing walls or other blind areas. The protruding saw blade, when running
into hidden objects, can be jammed and cause
kickback.
■ Check the lower guard for proper closing
before each use. Do not operate the saw if
the lower guard does not move freely and
close instantly. Never clamp or tie the
lower guard into the open position. If the
saw is accidentally dropped, the lower guard
may be bent. Raise the lower guard with the
retracting handle 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. The lower guard may operate
sluggishly due to damaged parts, gummy deposits or a build-up of debris.
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■ The lower guard should be retracted manually only for special cuts such as “plunge
cuts” and “compound cuts”. Raise the
lower guard with the retracting handle and
as soon as blade enters the material, the
lower guard must be released. For all other
sawing, the lower guard must operate automatically.
■ Always observe that the lower guard is
covering the saw blade before placing
down the saw on a workbench or the floor.
An unprotected, coasting blade will cause the
saw to travel backwards, cutting whatever is in
its path. Be aware of the run-on period of the
saw.
■ Use the appropriate riving knife for the saw
blade being used. The riving knife must be
wider than the thickness of the blade back, but
thinner than the kerf width of the saw blade.
■ Adjust the riving knife as described in the
operating instructions. Incorrect width, position and alignment can be the cause that the
riving knife does not effectively prevent kickback.
■ Always use the riving knife except when
performing plunge cuts. After the plunge cut,
mount the riving knife again. The riving knife
interferes when performing plunge cuts and
can lead to kickback.
■ In order for the riving knife to be effective,
it must be located in the cut. For short cuts,
the riving knife is ineffective for the prevention
of kickback.
■ Do not operate the saw with a bent riving
knife. Even a minor malfunction can lead to
sluggish retraction of the guard.
■ Do not reach into the saw dust ejector with
your hands. They could be injured by rotating
parts.
■ Do not work overhead with the saw. In this
manner you do not have sufficient control over
the power tool.
■ Use appropriate detectors to determine if
utility lines are hidden in the work area or
call the local utility company for assistance.
Contact with electric lines can lead to fire and
electric shock. Damaging a gas line can lead
to explosion. Penetrating a water line causes
property damage or may cause an electric
shock.
9 • 1 609 929 H62 • 06.01
■ Do not operate the power tool stationary. It
is not designed for operation with a saw table.
■ Do not use high speed steel (HSS) saw
blades. Such saw blades can easily break.
Tool Specifications
Circular Saw
Article number
Rated power input
No-load speed
Riving knife
thickness, max.
Cutting depth at 90°,
max.
Cutting depth at 45°,
max.
Spindle lock
Footplate
Weight according
to EPTA-Procedure
01/2003
Safety class
Saw blade dia.
(max.)
Saw blade dia.
(min.)
Blade thickness,
max.
Kerf, max.
Kerf, min.
Mounting hole
[W]
[rpm]
GKS 190
PROFESSIONAL
3 601 E23 Y..
1 050
5 000
[mm]
2.0
[mm]
65
[mm]
[mm]
44
●
138 x 305
[kg]
4.5
/ II
[mm]
190
[mm]
185
[mm]
[mm]
[mm]
[mm]
1.6
2.5
2.2
20
Please observe the article number on the type plate of your
machine. The trade names of the individual machines may
vary.
The values given are valid for nominal voltages [U] of
220/230 V. However, these values can vary for lower voltages and models made for specific countries.
English - 4
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Tool Elements
Before Use
The numbering of the tool elements refers to the
representation of the tool on the graphics page.
While reading the operating instructions, unfold
the graphics page of the tool and leave it open.
1 On/Off switch
2 Lock-off button for On/Off switch
3 Spindle locking button
4 Cutting angle scale
5 Wing bolt for parallel guide
6 Wing bolt for cutting angle setting
7 Cutting mark, 45°
8 Cutting mark, 0°
9 Rip fence
10 Retracting blade guard
11 Footplate
12 Riving knife
13 Adjustment lever for retracting blade guard
14 Sawdust ejector
15 Blade guard
16 Drive spindle
17 Mounting flange
18 Saw blade*
19 Clamping flange
20 Clamping bolt with washer
21 Hex key
22 Auxiliary handle*
23 Screw for attachment of the
auxiliary handle*
24 Wing bolt for cutting depth setting
25 Wing bolt for cutting angle preselection
26 Riving knife attachment
27 Set of screw clamps**
* Not all of the illustrated or described accessories are
included as standard delivery.
** Commercially available (not included in the delivered
items)
■ Before any work on the tool itself, pull the
power plug.
Mounting the Auxiliary Handle
(see figure B )
Mount the auxiliary handle 22 to the blade
guard 15 with the screw 23.
Checking the Adjustment of the
Riving Knife (see figure D )
The adjustment is carried out at minimal cutting
depth, as described in the section “Adjusting the
Cutting Depth”.
It is best to place the tool on the face side of the
blade guard.
Loosen the screw 26, adjust the riving knife 12
and retighten the screw. Observe the values
given in the figure.
Disassembly/Assembly of the
Riving Knife
For disassembly of the riving knife 12, unscrew
the screw 26 and remove the riving knife.
For assembly, insert the riving knife 12 and
tighten it with the screw 26. Afterwards, check the
adjustment of the riving knife as described previously.
Adjusting the Cutting Depth
(see figure C )
■ Before any work on the tool itself, pull the
power plug.
To achieve an optimum cut, the saw blade
must not protrude the material by more
than 3 mm (maximum).
To adjust the depth of cut, loosen wing bolt 24
and raise the saw from the footplate 11 or lower
it towards the footplate, respectively:
Raise
➡ for smaller cutting depths
Lower
➡ for greater cutting depths
Retighten the winged screw 24.
☞
Intended Use
The tool is intended for cutting wood lengthways
and crossways in straight lines and at bevel angles of up to 45° on a firm surface.
10 • 1 609 929 H62 • 06.01
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1 609 929 H62.book Seite 6 Freitag, 20. Januar 2006 8:31 08
Adjusting the Cutting Angle
Changing the Tool (see figure
■ Before any work on the tool itself, pull the
power plug.
Loosen the wing bolts 6 and 25.
It is best to place the tool on the face side of the
blade guard.
Tilt the footplate away from the tool until the required cutting angle is adjusted on the cutting angle scale 4.
Tighten the wing bolts again.
Cutting Marks
A
)
■ Before any work on the tool itself, pull the
power plug.
■ Wear protective gloves when mounting the
saw blade. Danger of injury when touching the
saw blade.
■ Only use saw blades that correspond with
the characteristic data given in the operating instructions.
■ Do not under any circumstances use grinding discs as the cutting tool.
For changing the cutting tool, it is best to place
the tool on the face side of the motor housing.
Removing
The cutting mark 0° ( 8) indicates the position of
the saw blade for right-angled cuts.
The cutting mark 45° ( 7) indicates the position of
the saw blade for 45° cuts.
Both cutting marks include the width of the saw
blade. Always guide the saw blade off of the
drawn-up cutting line so that the desired measure
is not reduced by the width of the saw blade. For
this, choose the corresponding notch side of the
cutting mark 0° ( 8) or 45° ( 7) as shown in the illustration.
Note: It is best to carry out a trial cut.
Initial Operation
Always use the correct voltage: The voltage of
the power source must agree with the values on
the nameplate of the tool.
Switching On and Off
For starting operation of the tool, actuate the
lock-off button 2 first, and then press and hold
the On/Off switch 1 afterwards.
To switch off the tool, release the On/Off
switch 1.
For safety reasons the On /Off switch of
the tool cannot be locked; it must remain pressed during the entire operation.
11 • 1 609 929 H62 • 06.01
Press the spindle lock button 3 and keep it
pressed.
■ The spindle lock button 3 may be actuated
only when the saw blade is at a standstill.
Unscrew clamping bolt 20 with the hex key 21.
Remove clamping flange 19.
Tilt back the retracting blade guard 10 and hold
firmly.
Remove the saw blade.
Mounting
Clean the saw blade and all the clamping parts to
be assembled.
Tilt back the retracting blade guard 10 and hold
firmly.
Place the saw blade onto the mounting flange 17.
Assemble the clamping bolt 20 and the clamping
flange 19.
Tighten the clamping bolt 20 with the hex key 21.
Tightening torque: 6–9 Nm; equivalent to handtight plus 1/4 turn.
Take care that the mounting positions of
the mounting flange 17 and clamping
flange 19 are correct.
When mounting: Ensure that the cutting direction of the teeth (direction of arrow on
saw blade) and the direction-of-rotation arrow on the blade guard match.
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1 609 929 H62.book Seite 7 Freitag, 20. Januar 2006 8:31 08
Operating Instructions
■ Protect saw blades against impact and shock.
Excessive feed significantly reduces the performance capability of the tool and reduces the service life of the saw blade.
Sawing performance and cutting quality depend
essentially on the condition and the tooth form of
the saw blade. Therefore, use only sharp saw
blades that are suited for the material to be
worked.
The correct selection of the saw blade depends
on the type and quality of the wood and whether
length or cross cuts are required.
When cutting spruce lengthways, long spiral chips are formed.
Beech and oak dusts are especially detrimental
to health. Therefore, work only with dust extraction.
☞
Tips
Rip Fence (see figure
E
)
If the machine should fail, repair should be carried out by an authorized after-sales service
agent for Bosch power tools. The mains cable is
fitted with a special safety connection. The mains
cable may be replaced only by an authorized after-sales service agent for Bosch power tools.
In all correspondence and spare parts orders,
please always include the 10-digit article number
given on the nameplate of the power tool.
Disposal
Power tools, accessories and packaging should
be sorted for environmental-friendly recycling.
Service
Exploded views and information on spare
parts can be found under:
www.bosch-pt.com
In case of a claim, repair or purchase of replacement parts or in case of queries or other problems, please contact your local dealer or Bosch
representative.
The rip fence 9 enables exact cuts along a workpiece edge and cutting strips of the same size.
People’s Republic of China
Sawing with an Auxiliary Guide
(see figure F )
China Mainland
Bosch Power Tools (China) Co., Ltd.
567, Bin Kang Road
Bin Jiang District 310052
Hangzhou, P.R.China
Service Hotline: .................................... 800 8 20 84 84
✆ .................................................... +86 571 87 77 43 38
Fax ................................................... +86 571 87 77 45 02
For cutting large workpieces or straight edges:
Clamp a board or strip tightly to the work as an
auxiliary guide using screw clamps. Guide the
footplate along the auxiliary guide.
Maintenance and Cleaning
■ Before any work on the tool itself, pull the
power plug.
■ For safe and proper working, always keep the
power tool and its ventilation slots clean.
The retracting blade guard must always be able
to move freely and retract automatically. Therefore, always keep the area around the retracting
blade guard clean. Remove dust and chips by
blowing out with compressed air or with a brush.
Saw blades that are not coated can be protected
against corrosion with a thin coat of acid-free oil.
Before use, the oil must be removed again; otherwise the wood will become soiled.
Resin and glue residue on the saw blade leads to
poor cuts. Therefore, clean the saw blade immediately after use.
12 • 1 609 929 H62 • 06.01
Website: www.bosch-pt.com.cn
HK and Macau Special Administrative Regions
Room 1210, Shun Tak Centre, West-Tower,
168 – 200 Connaught Road, Central Hong Kong
Customer Service Hotline: ....... +852 25 89 15 61
Fax .......................................................... +852 25 48 79 14
E-Mail: bosch@melchers.com.hk
Subject to change
English - 7
1 609 929 H62.book Seite 1 Freitag, 20. Januar 2006 8:31 08
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Robert Bosch GmbH
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1 609 929 H62 (06.01) O / 19