Bosch | GWS Professional 24-180 JH | Operating instructions | Bosch GWS Professional 24-180 JH Operating instructions

GWS 20-180
GWS 20-230
GWS 24-180 H
GWS 24-230 H
PROFESSIONAL
Operating instructions
* Des idées en action.
1 607 000 247
1 605 703 099
1 600 210 039
1 605 510 181
1 603 340 031
1 603 340 040
1 605 703 099
1 607 950 048
METAL
2 602 025 075
16
24
36
60
1 608 600 231
1 608 600 232
1 608 600 233
1 608 600 234
24
36
60
1 608 600 239
1 608 600 240
1 608 600 241
1 601 329 013
1 603 340 040
Ø 180 mm 1 605 510 222
Ø 230 mm 1 605 510 223
1 607 950 004
Ø 180 mm 2 605 510 173
Ø 230 mm 2 605 510 174
0 601 999 018
1 600 793 007
1 605 438 034
Ø 180 mm 1 605 510 179
Ø 230 mm 1 605 510 180
2 • 1 609 929 F75 • 04.03
3 • 1 609 929 F75 • 04.03
24
25
3
1
2
11
4
12
9
5
6
7
8
13
14
15
18
18
9
9
19
16
20
10
23
21
11
11
12
4+5 • 1 609 929 F75 • 04.03
17
22
GWS 24-180 H
GWS 24-230 H
PROFESSIONAL
General Safety Rules
WARNING! Read all instructions. Failure to follow all
instructions listed below may result in electric shock, fire
and/or serious injury. The term “power tool” in all of the
warnings listed below refers to your mains operated
(corded) power tool or battery operated (cordless) power tool.
SAVE THESE INSTRUCTIONS.
1) Work area
a) Keep work area clean and well lit. Cluttered and
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 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.
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 safety equipment. Always wear eye protection. Safety equipment such as dust mask, nonskid safety shoes, hard hat, or hearing protection
used for appropriate conditions will reduce personal
injuries.
c) Avoid accidental starting. Ensure the switch is
in the off position before plugging in. Carrying
power tools with your finger on the switch or plugging in power tools that have the switch on invites
accidents.
6 • 1 609 929 F75 • 04.03
d) Remove any adjusting key or wrench before
turning the power tool on. A wrench or a key 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
jewellery. Keep your hair, clothing and gloves
away from moving parts. Loose clothes, jewellery
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
these devices can reduce dust related 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 was designed.
b) Do not use the power tool if the switch does not
turn it on and off. Any power tool that cannot be
controlled with the switch is dangerous and must be
repaired.
c) Disconnect the plug from the power source 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 tools 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 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.
5) Battery tool use and care
a) Ensure the switch is in the off position before
inserting battery pack. Inserting the battery pack
into power tools that have the switch on invites accidents.
b) 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.
English - 1
e) 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.
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.
c) Use power tools only with specifically designated battery packs. Use of any other battery packs
may create a risk of injury and fire.
d) 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.
Tool Specifications
Angle Grinder
Order number
Rated input power*
Output power
No-load speed
Grinding disc
dia., max.
Grinder spindle
thread
Weight without
cable, approx.
Protection class
[W]
[W]
[rpm]
GWS 20-180
PROFESSIONAL
0 601 849 1..
2 000
1 250
8 500
GWS 20-230
PROFESSIONAL
0 601 850 1..
2 000
1 250
6 500
GWS 24-180 H
PROFESSIONAL
0 061 853 4..
2 400
1 700
8 500
GWS 24-230 H
PROFESSIONAL
0 601 854 4..
2 400
1 700
6 500
[mm]
180
230
180
230
M 14
M 14
M 14
M 14
4.2
4.2
5.1
5.1
[kg]
/ II
/ II
/ II
/ II
* The values given are valid for nominal voltages [U] of 230/240 V. For lower voltages and models for specific countries,
these values can vary.
Please observe the order number of your machine. The trade names of the individual machines may vary.
Inrush currents cause short-time voltage drops. Under unfavourable power supply conditions, other equipment may be
affected. If the system impedance of the power supply is lower than 0,25 Ohm, disturbances are unlikely to occur.
Machine Elements
The numbering of the device elements refers to
the illustration of the machine on the graphics
page.
While reading the operating instructions, unfold
the graphics page for the device and leave it
open.
1 Thread for auxiliary handle (3x)
2 Spindle lock button
3 On/Off switch
4 Auxiliary handle
5 Grinder spindle
6 Protection guard
7 Adjustment screw*
8 Clamping lever*
9 Mounting flange with O-ring
10 Grinding/cutting disc*
11 Clamping nut
12
quick-clamping nut*
7 • 1 609 929 F75 • 04.03
13
14
15
16
17
18
19
20
21
22
23
24
25
Clamping screw
Coded projection
Guard, grinding cup*
Grinding cup*
Two-pin spanner for clamping nut*
Hand guard*
Spacer discs*
Rubber sanding plate*
Sanding sheet*
Round nut*
Cup brush*
Diamond cutting disc*
Cutting guide with dust extraction protection
guard*
26 Cutting grinder stand*
* Not all of the accessories illustrated or described are
included as standard delivery.
English - 2
For Your Safety
Working safely with this machine is possible only when the
operating and safety information
are read completely and the instructions contained therein are
strictly followed. In addition, the
general safety notes in the enclosed booklet
must be observed. Before using for the first
time, ask for a practical demonstration.
■ Wear protective glasses and hearing protection.
■ Wear additional protection equipment for your
safety, such as protective gloves, sturdy
shoes, hard hat and apron.
■ The dust that is produced while working can be
detrimental to health, inflammable or explosive. Suitable safety measures are required.
Examples: Some dusts are regarded as carcinogenic. Use suitable dust/chip extraction and
wear a dust respirator.
■ Dust from light alloys can burn or explode. Always keep the workplace clean, as blends of
materials are particularly dangerous.
■ If the mains cable is damaged or cut through
while working, do not touch the cable but immediately pull the mains plug. Never use the
machine with a damaged cable.
■ Connect machines that are used in the open
via a residual current device (RCD) with an actuating current of 30 mA maximum. Do not operate the machine in rain or moisture.
■ When working with the machine, always hold it
firmly with both hands and provide for a secure
stance.
■ Secure the workpiece. A workpiece clamped
with clamping devices or in a vice is held more
secure than by hand.
■ Always direct the cable to the rear away from
the machine.
■ Always switch the machine off and wait until it
has come to a standstill before placing it down.
■ For power outage or when the mains plug is
pulled, unlock the On/Off switch immediately
and turn it to the off position. This prevents uncontrolled restarting.
■ The machine must be used only for dry cutting/
grinding.
■ For all work with the machine, the auxiliary
handle must be mounted.
8 • 1 609 929 F75 • 04.03
■ Hold the power tool only by the insulated
gripping surfaces, when performing an operation where the cutting tool may run into
hidden wiring or its own cord.
Contact with a “live” wire will make exposed
metal parts of the tool “live” and shock the operator.
■ 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.
■ For work with grinding or cutting discs, the protection guard 6 must be mounted. For work
with the rubber sanding plate 20 or with the
cup brush 23/disc brush/flap disc, the hand
guard 18 (accessory) is to be mounted.
■ Use dust extraction when working with stone.
The vacuum cleaner must be approved for masonry dust. When cutting stone, use the cutting
guide.
■ Do not work with materials containing asbestos.
■ Use only grinding tools with a permissible
speed at least as high as the no-load speed of
the machine.
■ Check grinding tools before use. The grinding
tool must be properly mounted and turn freely.
Perform a test run for at least 30 seconds without load. Do not use damaged, out-of-round or
vibrating grinding tools.
■ Protect the grinding tool from impact, shock
and grease.
■ Apply the machine to the workpiece only when
switched on.
■ Keep hands away from rotating grinding tools.
■ Pay attention to the direction of rotation. Always hold the machine so that sparks and
grinding dust fly away from the body.
■ When grinding metal, flying sparks are produced. Take care that no persons are endangered. Due to danger of fire, no combustible
materials should be located in the vicinity
(spark flight zone).
■ Be careful when cutting grooves, e. g. in structural walls: See Information on Structures.
■ Blocking the cutting disc leads to jerking reaction forces on the machine. In this case switch
off the machine immediately.
English - 3
■ Pay attention to the dimensions of the grinding
disc. The mounting hole diameter must fit the
mounting flange 9 without play. Do not use reducers or adapters.
■ Never use cutting discs for rough grinding. Do
not exert any lateral pressure on the cutting
discs.
■ Observe the manufacturer’s instructions for
mounting and using grinding tools.
■ Caution! The grinding tool runs on after the
machine is switched off.
■ Do not clamp the machine in a vice.
■ Never allow children to use the machine.
■ Bosch is only able to ensure perfect operation
of the machine if the original accessories intended for it are used.
Intended Use
The machine is intended for cutting, roughing and
brushing metal and stone materials without using
water. For cutting stone, a cutting guide is required.
Information on Structures
Slots in structural walls are subject to the Standard DIN 1053, Part 1 or country-specific regulations.
These regulations are to be observed under all
circumstances. Before beginning work, consult
the responsible structural engineer, architects or
the construction supervisor.
Mounting the
Protective Devices
■ Before any work on the machine itself, pull
the mains plug.
■ For work with grinding or cutting discs, the
protection guard 6 must be mounted.
Protection Guard with Locking Screw
The coded projection 14 on the protection
guard 6 ensures that only a guard that fits the
machine type can be mounted.
Loosen the clamping screw 13, if necessary.
Place the protection guard 6 with coded projection 14 into the coded groove on the spindle collar of the machine head and rotate to the required
position (working position).
The closed side of the protection guard 6
must always point to the operator.
Tighten clamping screw 13.
Protection Guard with Quick Clamp
☞
The protection guard is preadjusted to the
diameter of the spindle collar. If required,
the tightening tension of the clamping
bracket can be changed by tightening or
loosening the adjustment screw 7. Always
ensure that the protection guard 6 is
seated tightly on the spindle collar.
Open the clamping lever 8.
Place the protection guard 6 on the spindle collar
of the machine head and turn to the required position (working position).
To fasten the protection guard 6, close the
clamping lever 8.
The closed side of the protection guard 6
must always point to the operator.
Auxiliary Handle
■ For all work with the machine, the auxiliary
handle must be mounted.
Screw the auxiliary handle 4 into the head of the
machine according to the working method.
Do not continue to use an auxiliary handle if it is
damaged.
Hand Guard
For work with the rubber sanding plate 20 or with
the cup brush 23/disc brush/flap disc, the hand
guard 18 (accessory) is to be mounted. The hand
guard 18 is fastened with the auxiliary handle 4.
9 • 1 609 929 F75 • 04.03
English - 4
Flap Disc
Mounting the Grinding Tools
■ Before any work on the machine itself, pull
the mains plug.
Use only grinding tools with a permissible speed at least as high as the no-load
speed of the machine.
Grinding and cutting discs become very
hot while working; do not touch until
they have cooled.
■ Clean the grinder spindle and all parts to be
mounted. For clamping and loosening the
grinding tools, lock the grinder spindle 5 with
the spindle lock button 2.
Actuate the spindle lock button 2 only when
the grinder spindle is at a standstill!
Depending on the application, remove the protection guard 6 and mount the hand guard 18. Place
the special mounting flange 9 (accessory, Order
No. 2 605 703 028) and the flap disc on the
grinder spindle 5. Screw on the clamping nut 11
and tighten with the two-pin spanner.
Rubber Sanding Plate 20
Depending on the application, remove the protection guard 6 and mount the hand guard 18.
Before mounting the rubber sanding pad 20,
place the 2 spacers 19 onto the grinding spindle.
For mounting, see the illustration page.
Screw on the round nut 22 and tighten with the
two-pin spanner.
Grinding/Cutting Disc
Cup Brush 23/Disc Brush
Pay attention to the dimensions of the grinding
disc. The mounting hole diameter must fit the
mounting flange 9 without play. Do not use reducers or adapters.
When using a diamond cutting disc, take care
that the direction-of-rotation arrow on the diamond cutting disc and the direction of rotation of
the machine (direction-of-rotation arrow on the
machine head) agree.
For mounting, see the illustration page.
Screw on the clamping nut 11 and tighten with
the two-pin spanner (see Section “Quick-clamping Nut”).
An O-ring (plastic
part) is inserted in
the
mounting
flange 9 around the
spigot.
9
Depending on the application, remove the protection guard 6 and mount the hand guard 18.
The grinding tool must be able to be screwed
onto the grinding spindle 5 until it rests firmly
against the grinder spindle flange at the end of
the grinder spindle threads. Tighten with an
open-end spanner.
Grinding Cup
When working with grinding cups, use
the special guard 15.
The grinding cup 16 should always protrude
from the guard 15 only as far as absolutely necessary for the work to be performed in each case.
Adjust the guard 15 to this distance.
For mounting, see the illustration page.
Screw on the clamping nut 11 and tighten with
the fitting offset two-pin spanner 17.
If the O-ring is missing or is damaged, it must
in all cases be replaced (Order No.
1 600 210 039) before the mounting flange 9 is
mounted.
After mounting the grinding tool and before switching on, check that the grinding tool is correctly mounted and that it
can turn freely.
☞
10 • 1 609 929 F75 • 04.03
English - 5
Approved Grinding Tools
Quick Clamping Nut
Instead of the clamping nut 11, the quick-clamping nut 12 (accessory) can be used. Grinding
tools can then be mounted without using tools.
The quick-clamping nut 12 may be used only
for grinding and cutting discs.
Use only a flawless, undamaged quick-clamping nut 12.
When screwing on, take care that the side
with printing does not point to the grinding
disc. The arrow must point to the index
mark 27.
Lock the grinder
spindle with the spin27
dle lock button 2.
Tighten the quickclamping nut by
forcefully turning the
grinding disc in the
12
clockwise direction.
All grinding tools mentioned in this operating
manual instruction can be used.
The permissible speed [rpm] or the circumferential speed [m/s] of the grinding tools used must at
least match the values given in the table.
Therefore, always observe the permissible
rotational/circumferential speed on the label
of the grinding tool.
max.
[mm]
d
D
[mm]
D
b
d
[rpm]
[m/s]
180
230
8
8
22.2
22.2
8 500
6 500
80
80
180
230
–
–
–
–
8 500
6 500
80
80
100
30
M 14
8 500
45
b
D
d
b
2
2
D
A properly tightened
undamaged, quickclamping nut can be
loosened by hand
turning the knurled
ring in anticlockwise
direction.
Never loosen a tight
quick-clamping nut
with pliers but use a
two-pin spanner. Insert
the
two-pin
spanner as shown in
the illustration.
Starting Operation
Observe correct mains voltage: The voltage of
the power source must agree with the voltage
specified on the nameplate of the machine.
Equipment marked with 230 V can also be connected to 220 V.
Switching On and Off
To start the machine, press the On/Off switch 3
forward and then down.
To lock-on, push the pressed On/Off switch 3
further forwards.
To switch off the machine, release the On/Off
switch 3 or push and release it then.
Switch version without lock
(country-specific):
To start the machine, press the On/Off switch 3
forward and then down.
To switch off the machine, release the On/Off
switch 3.
Test run!
Check the grinding tool before use. The
grinding tool must be properly mounted
and rotate freely. Perform a test run of at
least 30 seconds without load. Do not use
damaged, out-of-round or vibrating grinding tools.
☞
11 • 1 609 929 F75 • 04.03
English - 6
Grinder Stand
Operating Instructions
■ Clamp the workpiece if it does not remain
stationary due to its own weight.
■ Do not strain the machine so heavily that it
comes to a standstill.
■ Grinding and cutting discs become very
hot while working; do not touch until they
have cooled.
With the grinder stand 26 (accessory), workpieces can be cut at angles of 0 to 45° at the
same lengths.
The safety notes and operating instructions in the
respective operating instructions manual of the
angle grinder are to be strictly observed. Use only
original Bosch grinder stands.
Rough Grinding
The best roughing results are
achieved when setting the machine
at an angle of 30° to 40°. Move the
machine back and forth with moderate pressure. In this manner, the
workpiece will not become too hot,
does not discolour and no grooves
are formed.
Never use a cutting disc for roughing.
Flap Disc
With the flap disc (accessory), curved surfaces
and profiles (contour sanding) can be worked.
Flap discs have a considerably higher service life
than sanding sheets, lower noise level and lower
sanding temperatures.
Cutting
When cutting, do not press, jam or
oscillate the machine. Work with
moderate feed, adapted to the material being machined.
Do not reduce the speed of running
down cutting discs by applying
sideward pressure.
The direction in which
the cutting is performed is important.
The machine must
always work in an
up-grinding motion.
Therefore,
never
move the machine in
the other direction!
Otherwise, the danger exists of it being
pushed
uncontrolled out of the cut.
12 • 1 609 929 F75 • 04.03
26
Cutting Stone
■ The machine must be used only for dry
cutting/grinding.
It is best to use a diamond cutting disc. As
a safety measure
against jamming, use
the cutting guide 25
with the special dust
extraction protection
guard.
Operate the machine with dust extraction only. In
addition, wear a dust mask.
The vacuum cleaner
must be approved for
the extraction of masonry dust.
Bosch provides suitable vacuum cleaners.
Switch on the machine and place the
front part of the cutting guide on the
workpiece.
Slide the machine with moderate feed, adapted
to the material to be worked (Figure).
English - 7
For cutting especially hard material, e. g., concrete with high pebble content, the diamond cutting disc can overheat and become damaged as
a result. This is clearly indicated by circular
sparking, rotating with the diamond cutting disc.
In this case, interrupt the cutting process and allow the diamond cutting disc to cool by running
freely at no-load speed for a short time.
Noticeable decreasing work progress and circular sparking are indications of a diamond cutting
disc that has become dull. Briefly cutting into
abrasive material (e. g., lime-sand brick) can resharpen the disc.
Rotating the Machine Head
■ Before any work on the machine itself, pull
the mains plug.
The machine head
can be rotated with
respect to the machine housing in 90°
steps. In this manner, the On/Off
switch
can
be
brought to an advantageous
handling
position for special
working situations,
e. g., for cutting work
with the cutting guide 25/cutting grinder stand 26
(accessory) or for left-handed persons.
Unscrew completely the four screws.
Rotate the machine head carefully and without
removing from the housing to the new position.
Screw in the screws again and tighten.
Maintenance and Cleaning
If the machine should fail despite the care taken
in manufacturing and testing procedures, repair
should be carried out by an after-sales service
centre for Bosch power tools.
In all correspondence and spare parts orders,
please always include the 10-digit order number
given on the nameplate of the machine.
Service and Customer
Assistance
Exploded views and information on spare
parts can be found under:
www.bosch-pt.com
Southern India
Bosch Service Center
No 49, Ethiraj Salai
Egmore Chennai 600 008
✆ .............................................. +91 (0)44 - 28 23 19 46
Fax: ........................................... +91 (0)44 - 28 27 93 55
Western India
Bosch Service Center
No 41, 41 A Appa Baug Building
Maharshi Karve Marg (opp. Charni Road Station )
Mumbai 400 002
✆ .............................................. +91 (0)22 - 22 01 46 49
Fax: ........................................... +91 (0)22 - 22 08 40 05
Northern India
Bosch Service Center
Rishyamook, 85 A
Panchuin Road Delhi 110 001
✆ .............................................. +91 (0)11 - 23 34 82 64
Fax: ........................................... +91 (0)11 - 23 34 82 64
Subject to change without notice
■ Before any work on the machine itself, pull
the mains plug.
For safe and proper working, always keep
the machine and the ventilation slots clean.
In extreme working conditions, conductive
dust can accumulate in the interior of the
machine when working with metal. The
protective insulation of the machine can be
degraded. The use of a stationary extraction system is recommended in such cases
as well as frequently blowing out the ventilation slots and installing a residual current
device (RCD).
☞
13 • 1 609 929 F75 • 04.03
English - 8
* Des idées en action.
Chlor
Bosch Power Tool Division
Motor Industries Co Ltd
P B No 3000, Audugodi
Hosur Road,
Bangalore 560 030
Ph: + 91 (0)80 - 22 99 28 66/22 99 95 15
1 609 929 F75 (04.03) O / 16
Printed in India - Imprimé en Inde
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