BOSCH GGS 30 LS Professional Instruction Manual

GGS 30 LS Professional

Original instructions

GGS 30 LS Professional

Safety Instructions

General Power Tool Safety Warnings
WARNING
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.

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. Power tools create sparks which may ignite the dust or fumes.
• Keep children and bystanders away while operating a power tool. Distractions can cause you to lose control.

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. Unmodified plugs and matching outlets will reduce risk of electric shock.

• 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.

• Do not expose power tools to rain or wet conditions.
  Water entering a power tool will 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.
  Damaged or entangled cords increase the risk of electric shock.

• 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..

• If operating a power tool in a damp location is unavoidable, use a residual current device (RCD) protected supply.
  Use of an RCD reduces the risk of electric shock.

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. A moment of inattention while operating power tools may result in serious personal injury.

• Use personal protective equipment. Always wear eye protection. Protective equipment such as dust mask, non-skid safety shoes, hard hat, or hearing protection used for appropriate conditions will reduce personal injuries.

• 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 energising power tools that have the switch on invites accidents.

• 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.

• Do not overreach. Keep proper footing and balance at all times. This enables better control of the power tool in unexpected situations.

• 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.

• 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 dust-related hazards.

Power tool use and care

• 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.

• 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.

• 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.

• 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 tool’s operation.
  If damaged, have the power tool repaired before use. Many accidents are caused by poorly maintained power tools.

• Keep cutting tools sharp and clean. Properly maintained cutting tools with sharp cutting 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, taking into account the working conditions and the work to be per formed. Use of the power tool for operations different from those intended could result in a hazardous situation.

Service

• 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.

Safety information for straight grinders
Safety Warnings common for Grinding, Wire Brushing or Polishing

• This power tool is intended to function as a grinder, wire brush or polisher. Read all safety warnings, instructions, illustrations and specifications provided with this power tool. Failure to follow all instructions listed below may result in electric shock, fire  and/or serious injury.

• Operations such as sanding or cutting-off are not recommended to be performed with this power tool.
  Operations for which the power tool was not designed may create a hazard and cause personal injury.

• Do not use accessories which are not specifically designed and recommended by the tool manufacturer. Just because the accessory can be attached to your  power tool, it does not assure safe operation.

• The rated speed of the accessory must be at least equal to the maximum speed marked on the power tool. Accessories running faster than their rated speed can break and fly apart.

• The outside diameter and the thickness of your accessory must be within the capacity rating of your power tool. Incorrectly sized accessories cannot be adequately guarded or controlled.

• Threaded mounting of accessories must match the grinder spindle thread. For accessories mounted by flanges, the arbour hole of the accessory must fit the locating diameter of the flange. Accessories that do not match the mounting hardware of the power tool will run out of balance, vibrate excessively and may cause loss of control.

• Do not use a damaged accessory. Before each use inspect the accessory such as abrasive wheels for chips and cracks, backing pad for cracks, tear or excess wear, wire brush for loose or cracked wires. If power tool or accessory is dropped, inspect for damage or install an undamaged accessory. After inspecting and installing an accessory, position yourself and bystanders away from the plane of the rotating accessory and run the power tool at maximum no load speed for one minute.
  Damaged accessories will normally break apart during this test time.

• Wear personal protective equipment. Depending on application, use face shield, safety goggles or safety glasses. As appropriate, wear dust mask, hearing protectors, gloves and workshop apron capable of stopping small abrasive or workpiece fragments.  The eye protection must be capable of stopping flying debris generated by various operations . The dust mask or respirator must be capable of filtrating particles generated by your operation. Prolonged exposure to high intensity noise may cause hearing loss. u Keep bystanders a safe distance away from work area. Anyone entering the work area must wear personal protective equipment. Fragments of workpiece or of a broken accessory may fly away and cause injury beyond immediate area of operation.

• Hold the power tool by insulated gripping surfaces only, when performing an operation where the cutting accessory may contact hidden wiring or its own cord. Cutting accessory contacting a “live” wire may make ex- posed metal parts of the power tool “live” and could give the operator an electric shock.

• Position the cord clear of the spinning accessory. If you lose control, the cord may be cut or snagged and your hand or arm may be pulled into the spinning accessory.

• Never lay the power tool down until the accessory has come to a complete stop. The spinning accessory may grab the surface and pull the power tool out of your control.

• Do not run the power tool while carrying it at your side. Accidental contact with the spinning accessory could snag your clothing, pulling the accessory into your body.

• Regularly clean the power tool’s air vents. The motor’s fan will draw the dust inside the housing and excessive accumulation of powdered metal may cause electrical hazards.

• Do not operate the power tool near flammable materials. Sparks could ignite these materials.

• Do not use accessories that require liquid coolants.
  Using water or other liquid coolants may result in electrocution or shock.

Kickback and Related Warnings
Kickback is a sudden reaction to a pinched or snagged rotating wheel, backing pad, brush or any other accessory.
Pinching or snagging causes rapid stalling of the rotating accessory which in turn causes the uncontrolled power tool to be forced in the direction opposite of the accessory’s rotation at the point of the binding.
For example, if an abrasive wheel is snagged or pinched by the workpiece, the edge of the wheel that is entering into the pinch point can dig into the surface of the material causing the wheel to climb out or kick out. The wheel may either jump toward or away  from the operator, depending on direction of the wheel’s movement at the point of pinching. Abrasive wheels may also break under these conditions.
Kickback is the result of power tool misuse and/or incorrect operating procedures or conditions and can be avoided by taking proper precautions as given below.

• Maintain a firm grip on the power tool and position your body and arm to allow you to resist kickback forces. Always use auxiliary handle, if provided, for maximum control over kickback or torque reaction during start-up. The operator can control torque reactions or kickback forces, if proper precautions are taken.

• Never place your hand near the rotating accessory.
  Accessory may kickback over your hand.

• Do not position your body in the area where power tool will move if kickback occurs. Kickback will propel the tool in direction opposite to the wheel’s movement at the point of snagging.

• Use special care when working corners, sharp edges etc. Avoid bouncing and snagging the accessory. Corners, sharp edges or bouncing have a tendency to snag the rotating accessory and cause loss of control or kickback.

• Do not attach a saw chain woodcarving blade or toothed saw blade. Such blades create frequent kick- back and loss of control.

Safety Warnings specific for Grinding operations

• Use only wheel types that are recommended for your power tool and the specific guard designed for the selected wheel. Wheels for which the power tool was not designed cannot be adequately guarded and are unsafe.
• The grinding surface of centre depressed wheels must be mounted below the plane of the guard lip. An improperly mounted wheel that projects through the plane of the guard lip cannot be adequately protected.
• Wheels must be used only for recommended applications. For example: do not grind with the side of cut- off wheel. Abrasive cut-off wheels are intended for peripheral grinding, side forces applied to these wheels may cause them to shatter.
• Always use undamaged wheel flanges that are of cor- rect size and shape for your selected wheel. Proper wheel flanges support the wheel thus reducing the possibility of wheel breakage. Flanges for cut-off wheels may be different from grinding wheel  flanges.
• Do not use worn down wheels from larger power tools. Wheel intended for larger power tool is not suit- able for the higher speed of a smaller tool and may burst.

Safety Warnings specific for Polishing operations

• Do not allow any loose portion of the polishing bonnet or its attachment strings to spin freely. Tuck away or trim any loose attachment strings. Loose and spinning attachment strings can entangle your fingers or snag on the workpiece.
  Safety Warnings specific for Wire Brushing operations

• Be aware that wire bristles are thrown by the brush even during ordinary operation. Do not overstress the wires by applying excessive load to the brush The wire bristles can easily penetrate light clothing and/or skin.

• If the use of a guard is recommended for wire brush- ing, do not allow any interference of the wire wheel or brush with the guard. Wire wheel or brush may expand in diameter due to work load and centrifugal forces.

Additional safety information
Wear safety goggles.

• Use suitable 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.
• Release the On/Off switch and set it to the off position when the power supply is interrupted, e. g., in case of a power failure or when the mains plug is pulled. This prevents uncontrolled restarting.
• Do not touch grinding discs until they have cooled down. The discs can become very hot while working.
• Secure the workpiece. A workpiece clamped with clamping devices or in a vice is held more secure than by hand.

 Product Description and Specifications

Read all the safety and general instructions.
Failure to observe the safety and general instructions may result in electric shock, fire and/or serious injury.
Please observe the illustrations at the beginning of this operating manual.

Intended Use
The power tool is intended for grinding and deburring metal with corundum grinding tools, as well as for working with sanding belt tools.
The power tool is additionally intended for brushing and polishing metal.

Product Features
The numbering of the product features refers to the diagram of the power tool on the graphics page.

1. Collet
2. Clamping nut
3. Grinding spindle
4. Spindle collar (insulated gripping surface)
5. On/off switch
6. Speed preselection thumbwheel
7. Handle (insulated gripping surface)
8. Open-ended spanner (15 mm) on the grinding spindle a)
9. Open-ended spanner (17 mm) on the clamping nut
10. Inner shank dimension L0
11. Spindle lock

a) Commercially available (not included in the scope of delivery)

Technical Data

Spanner flat on the
– Clamping nut| mm| 17
– Grinding spindle| mm| 15
Spindle collar diameter| mm| 43
Grinding tool diameter, max.| mm| 50
Max. inner shank dimension L0| mm| 10
Max. shank length| mm| 35
Constant electronic control| | ●
Speed preselection| | ●
Kick Back Control| | ●
Restart protection| | ●
Soft start| | ●
Weight according to EPTA-Procedure 01:2014| kg| 1.7
Protection class| |  / II

The specifications apply to a rated voltage [U] of 230 V. These specifications may vary at different voltages and in country-specific models.
Values can vary depending upon the product and are subject to application and environmental conditions. For further information www.bosch- professional.com/wac.

Fitting

• Pull the plug out of the socket before carrying out any work on the power tool.

Fitting Abrasive Tools Using an Open-Ended Spanner and Spindle Lock (see figure A)

• Only use open-ended spanners that are suitable and undamaged (see “Technical Data”).

– Clean the grinding spindle (3) and all the parts to be fitted.
– Press the spindle lock (11) and turn the clamping nut (2) by hand until locked.
– Press and hold the spindle lock and loosen the clamping nut (2) with the open-ended spanner (9) by turning it anticlockwise.
– Insert the straight shank of the grinding tool all the way into the collet (1).
– Press the spindle lock (11) and tighten the application tool by placing the open-ended spanner (9) on the spanner flat and turning it clockwise.
The grinding tools must run completely concentrically.
Do not continue to use damaged grinding tools that are out of balance. If the grinding tools are out of balance, they should be replaced.

• Do not, under any circumstances, tighten the collet with the clamping nut until a grinding tool has been fitted. The collet may otherwise become damaged.
• Only use mounted points with an appropriate shank diameter. A mounting point with a shank diameter which does not correspond to the tool holder of the power tool (see “Technical data”) cannot be held properly and will damage the collet chuck.
• The application tool must be clamped at least 10 mm.
  The inner shank dimension L0 can be used to calculate the maximum permitted speed of the application tool from the specifications provided by the manufacturer of the application tool. It must not be less than the maximum speed of the power tool.

Fitting Abrasive Tools Using Two Open-Ended Spanners (see figure B)

• Only use open-ended spanners that are suitable and undamaged (see “Technical Data”).
  – Clean the grinding spindle (3) and all the parts to be fitted.
  – Use an open-ended spanner (8) on the spanner flat of the grinder spindle (3) to hold it in place. Loosen the clamping nut (2) by placing an open-ended spanner (9) on the spanner flat and turning it counterclockwise.
  – Insert the straight shank of the grinding tool all the way into the collet (1).
  – Hold the grinding spindle (3) with the open-ended spanner (8) and tighten the application tool by placing the open-ended spanner  9) on the spanner flat and turning it clockwise.
  The grinding tools must run completely concentrically.
  Do not continue to use damaged grinding tools that are out of balance. If the grinding tools are out of balance, they should be replaced.

• Do not, under any circumstances, tighten the collet with the clamping nut until a grinding tool has been fitted. The collet may otherwise become damaged.

• Only use mounted points with an appropriate shank diameter. A mounting point with a shank diameter which does not correspond to the tool holder of the power tool (see “Technical data”) cannot be held properly and will damage the collet chuck.

• The application tool must be clamped at least 10 mm.
  The inner shank dimension L0 can be used to calculate the maximum permitted speed of the application tool from the specifications provided by the manufacturer of the application tool. It must not be less than the maximum speed of the power tool.

Dust/Chip Extraction
Dust from materials such as lead-containing coatings, some wood types, minerals and metal can be harmful to one’s health. Touching or breathing-in the dust can cause allergic reactions and/or lead to respiratory infections of the user or bystanders.
Certain dust, such as oak or beech dust, is considered carcinogenic, especially in connection with wood-treatment additives (chromate, wood preservative). Materials containing asbestos may only be worked by specialists.
– Provide for good ventilation of the working place.
– It is recommended to wear a P2 filter-class respirator.
Observe the relevant regulations in your country for the materials to be worked.

• Avoid dust accumulation at the workplace. Dust can  easily ignite.

Operation

Starting operation

• Products that are only sold in AUS and NZ: Use a residual current device (RCD) with a nominal residual current of 30 mA or less.
• Pay attention to the mains voltage! The voltage of the power source must match the voltage specified on the rating plate of the power tool. Power tools marked with 230 V can also be operated with 220 V.
• Check whether there is visible damage to the collet (1) and clamping nut (2) before each use.

Switching On and Off
To start the power tool, slide the on/off switch (5) forwards.
To lock the on/off switch (5) in position, push the on/off switch (5) forwards and down until it clicks into place.
To switch off the power tool, release the on/off switch (5); or, if the switch is locked, briefly push the on/off switch (5) backwards and down and then release it.
Constant Electronic control
The Constant Electronic keeps the speed at no load and under load virtually consistent, guaranteeing uniform performance.
Speed preselection
You can preselect the required speed using the speed preselection thumbwheel (6), even during operation.
The required speed depends on the material being worked and the diameter of the application tool. Observe the maximal allowable speed of the application tool.

Kickback Stop
If there is a sudden kickback in the power tool, e.g. jamming when carving, the power supply to the motor will be interrupted electronically.
To restart the tool, set the on/off switch (5) to the off position and then switch the power tool on again.

Restart Protection
The restart protection feature prevents the power tool from uncontrolled starting after the power supply to it has been interrupted.
To restart the tool, set the on/off switch (5) to the off position and then switch the power tool on again.
Note: Rapidly switching the power tool off and on again may trigger the restart protection, meaning the power tool may not start up even if the on/off switch (5) is pressed. Set the on/off switch (5) to the off position and then switch the power tool on again.

Soft start
The electronic soft start limits the torque when the power tool is switched on and increases the service life of the motor.

Practical advice

• Pull the plug out of the socket before carrying out any work on the power tool.
• Protect the grinding tools against impact.
• Do not load the power tool so heavily that it comes to a stop.
• If the power tool has been subjected to a heavy load, continue to run it at no-load for several minutes to cool down the accessory.
• Grinding tools can become very hot while working. Do not touch them until they have cooled down.

Move the grinding tool evenly back and forth with light pressure to achieve an optimum work result. Pressure that is too strong reduces the performance capability of the power tool and causes the grinding tool to wear more quickly.

Maintenance and Service

Maintenance and Cleaning

• Pull the plug out of the socket before carrying out any work on the power tool.
• To ensure safe and efficient operation, always keep the power tool and the ventilation slots clean.
• In extreme conditions, always use a dust extractor if possible. Blow out ventilation slots frequently and install a residual current device (RCD) upstream.
  When  machining metals, conductive dust can settle inside the power tool, which can affect its protective insulation.

Store and handle the accessories carefully.
In order to avoid safety hazards, if the power supply cord needs to be replaced, this must be done by Bosch or by an after-sales service centre that is authorised to repair Bosch power tools.

After-Sales Service and Application Service
Our after-sales service responds to your questions concerning maintenance and repair of your product as well as spare parts. You can find explosion drawings and information on spare parts at: www.bosch-pt.com
The Bosch product use advice team will be happy to help  you with any questions about our products and their accessories.
In all correspondence and spare parts orders, please always include the 10‑digit article number given on the nameplate of the product.

Malaysia
Robert Bosch Snd. Bhd.(220975-V) PT/SMY
No. 8A, Jalen 13/6
46200 Pedaling Jaya
Selangor
Tel.: (03) 79663194
Toll-Free: 1800 880188
Fax: (03) 79583838
E-Mail: kiathoe.chong@my.bosch.com
www.bosch-pt.com.my
You can find further service addresses at: www.bosch- pt.com/serviceaddresses

Disposal
The power tool, accessories and packaging should be recycled in an environmentally friendly manner.
**** Do not dispose of power tools along with household waste.

Licenses
Copyright © 2020, Microchip Technology Inc. and its subsidiaries (“Microchip”)
All rights reserved.
This software is developed by Microchip Technology Inc. and its subsidiaries (“Microchip”).
Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:

•  Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
• Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.
• Microchip’s name may not be used to endorse or promote products derived from this software without specific prior written permission.

THIS SOFTWARE IS PROVIDED BY MICROCHIP “AS IS” AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL MICROCHIP BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING BUT NOT LIMITED TO PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA OR PROFITS; OR BUSINESS INTERRUPTION) HOWSOEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

Robert Bosch Power Tools GmbH
70538 Stuttgart
GERMANY
www.bosch-pt.com

1 609 92A 828 | (12.05.2023)
Bosch Power Tools

References

• bosch-professional.com/wac
• Location selection | Bosch Power Tools
• Service worldwide
• Contato | Bosch no Brasil
• Herramientas eléctricas de Bosch | Bosch Professional
• Herramientas eléctricas de Bosch | Bosch Professional
• bosch-professional.com/wac/

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