BOSCH GDC 140 Professional - Saw

GDC 140 Professional - Saw BOSCH - Free user manual and instructions

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USER MANUAL GDC 140 Professional BOSCH

natural_image 3D rendering of a Bosch electric saw with visible blades and mounting base (no text or symbols)

en Original instructions

fr Notice originale

pt Manual original

zh 正本使用说明书

zh原始使用說明書

English ...... Page 5

Français Page 10

natural_image Mechanical diagram showing a hand operating a Bosch cutting tool on a workbench, with no visible text or symbols.

(17) (18)

1 609 92A 6E8 | (19.01.2021) Bosch Power Tools

English

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-

6 | English

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.

Cut-off machine safety warnings

The guard provided with the tool must be securely attached to the power tool and positioned for maximum safety, so the least amount of wheel is exposed towards the operator. Position yourself and bystanders away from the plane of the rotating wheel. The guard helps to protect operator from broken wheel fragments and accidental contact with wheel.
▶ Use only bonded diamond cut-off wheels for your power tool. Just because an 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.
▶ 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 correct diameter for your selected wheel. Proper wheel flanges support the wheel thus reducing the possibility of wheel breakage.
▶ Do not use worn down reinforced wheels from larger power tools. Wheels intended for a larger power tool are not suitable for the higher speed of a smaller tool and may burst.
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.
The arbour size of wheels and flanges must properly fit the spindle of the power tool. Wheels and flanges with arbour holes 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 damaged wheels. Before each use, inspect the wheels for chips and cracks. If power tool or wheel is dropped, inspect for damage or install an undamaged wheel. After inspecting and installing the wheel, position yourself and bystanders away from the plane of the rotating wheel and run the power tool at maximum no load speed for one minute. Damaged wheels 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 shop 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.

▶ 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 wheel 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 exposed 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 wheel.

▶ Never lay the power tool down until the accessory has come to a complete stop. The spinning wheel 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 is a sudden reaction to a pinched or snagged rotating wheel. Pinching or snagging causes rapid stalling of the rotating wheel which in turn causes the uncontrolled power tool to be forced in the direction opposite of the wheel'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 line with the rotating wheel. 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, segmented diamond wheel with a peripheral gap greater than 10 mm or toothed saw blade. Such blades create frequent kickback and loss of control.
Do not "jam" the wheel or apply excessive pressure. Do not attempt to make an excessive depth of cut. Overstressing the wheel increases the loading and susceptibility to twisting or binding of the wheel in the cut and the possibility of kickback or wheel breakage.
When wheel is binding or when interrupting a cut for any reason, switch off the power tool and hold the power tool motionless until the wheel comes to a complete stop. Never attempt to remove the wheel from the cut while the wheel is in motion otherwise kick-back may occur. Investigate and take corrective action to eliminate the cause of wheel binding.
▶ Do not restart the cutting operation in the workpiece. Let the wheel reach full speed and carefully re-enter the cut. The wheel may bind, walk up or kickback if the power tool is restarted in the workpiece.
▶ Support panels or any oversized workpiece to minimize the risk of wheel pinching and kickback. Large workpieces tend to sag under their own weight. Supports must be placed under the workpiece near the line of cut and near the edge of the workpiece on both sides of the wheel.
▶ Use extra caution when making a "pocket cut" into existing walls or other blind areas. The protruding wheel may cut gas or water pipes, electrical wiring or objects that can cause kickback.

Additional Safety Information

BOSCH GDC 140 Professional - Additional Safety Information - 1

BOSCH GDC 140 Professional - Additional Safety Information - 2

Wear hearing protection, protective goggles, a dust mask and gloves. Use at least an FFP 2 protection class particle-fil-

tering half mask.

▶ Use clamps or another practical way to secure and support the workpiece to a stable platform. Holding the work by your hand or against the body leaves it unstable and may lead to loss of control.
▶ 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.

▶ Do not touch the cutting disc after use before it has cooled. The cutting disc becomes very hot during use.
▶ Hold the power tool firmly with both hands and make sure you have a stable footing. The power tool can be more securely guided with both hands.

Products sold in GB only:

Your product is fitted with an BS 1363/A approved electric plug with internal fuse (ASTA approved to BS 1362). If the plug is not suitable for your socket outlets, it should be cut off and an appropriate plug fitted in its place by an authorised customer service agent. The replacement plug should have the same fuse rating as the original plug. The severed plug must be disposed of to avoid a possible shock hazard and should never be inserted into a mains socket elsewhere.

Product Description and Specifications

BOSCH GDC 140 Professional - Product Description and Specifications - 1

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 to be used on a stable surface, with the base plate and the protective guard fitted, to cut or score horizontally into predominantly mineral materials, e.g. marble, without using water. The power tool is not suitable for cutting wood, plastic or metal.

Product Features

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

(1) On/off switch
(2) Lock-on button for on/off switch
(3) Handle (insulated gripping surface)
(4) Cutting depth scale
(5) Wing bolt for preselecting the cutting depth
(6) Diamond cutting disc ^a)
(7) Direction-of-rotation arrow for grinding spindle
(8) Protective guard
(9) Base plate
(10) Drive spindle
(11) O-ring
(12) Mounting flange
(13) Clamping flange
(14) Ring spanner
(15) Clamping bolt

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(16) Socket spanner

(17) Cover caps for carbon brushes

(18) Carbon brushes

a) Accessories shown or described are not included with the product as standard. You can find the complete selection of accessories in our accessories range.

Technical Data

Stone saw GDC 140 GDC 140
Article number3 601 CA4 0.. 3 601 CA4 0K1
Rated power input W 1400 1400
No-load speed min-113,200 13,200
Max. diamond cutting disc diametermm 110/115 110/115
Min. cutting disc thickness mm 1.6 1.6
Max. cutting disc thickness mm 2.2 2.2
Locating bore mm 20 22,23
Max. cutting depth mm 32.5/35 32.5/35
Weight according to EPTA-Procedure 01:2014kg 2.9 2.9
Protection class☐/II☐/II

The specifications apply to a rated voltage [U] of 220 V. These specifications may vary at different voltages and in country-specific models.
Only for power tools without starting current limitation: Switching these on causes the voltage to drop briefly. Interference with other tools may occur in the event of unfavourable conditions in the electricity supply. Malfunctions are not expected if the impedances in the electricity supply are below 0.3 ohms.

Assembly

▶ Pull the plug out of the socket before carrying out any work on 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.

Mounting/changing the diamond cutting disc (see figure A)

▶ Wearing protective gloves while inserting and replacing diamond cutting discs is recommended.
▶ Diamond cutting discs become very hot while working; do not touch them until they have cooled.

▶ Always use a diamond cutting disc of the correct size and with the correct locating bore as specified in the technical data.
▶ Use only diamond-tipped cutting discs. Segmented diamond cutting discs may only exhibit negative cutting angles and max. 10 mm slots between the segments.

Mounting the diamond cutting disc

  • Clean the diamond cutting disc (6) and all the clamping elements to be fitted.
  • Fit the mounting flange (12) with the O-ring (11) to the drive spindle (10).
  • Place the diamond cutting disc (6) on the mounting flange (12). The direction of the arrow on the diamond cutting disc (6) must match the direction-of-rotation arrow on the protective guard (8).
  • Fit the clamping flange (13) and screw in the clamping bolt (15).
  • Use the ring spanner (14) to hold the clamping flange (13) and use the socket spanner (16) to tighten the clamping bolt (15).

Removing the Diamond Cutting Disc

  • Use the ring spanner (14) to hold the clamping flange (13) and use the socket spanner (16) to loosen the clamping bolt (15).
  • Remove the clamping flange (13) and the diamond cutting disc (6) from the drive spindle (10).

Operation

Operating Modes

▶ Pull the plug out of the socket before carrying out any work on the power tool.
▶ 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 exposed metal parts of the power tool "live" and could give the operator an electric shock.

Preselecting the Cutting Depth (see figure B)

The cutting depth must only be preselected while the power tool is switched off.

Adapt the cutting depth to the thickness of the workpiece. To achieve an optimal result, the diamond cutting disc needs to protrude from the material by approx. 2 mm.

- Loosen the wing bolt (5). For a smaller cutting depth, pull the power tool away from the base plate (9); for a larger cutting depth, push the power tool towards the base plate (9). Set the required cutting depth on the scale (4). Retighten the wing bolt (5).

Starting Operation

▶ 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.
▶ 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.

Switching On/Off

  • To switch on the power tool, press and hold the on/off switch (1).
  • Press the lock-on button (2) to lock the on/off switch (1) in this position.
  • To switch off the power tool, release the on/off switch (1); or, if the switch is locked with the lock-on button (2), briefly press the on/off switch (1) and then release it.
    ▶ Check the diamond cutting disc before using it. The diamond cutting disc must be fitted properly and be able to rotate freely. Carry out a test run for at least one minute with no load. Do not use diamond cutting discs that are damaged, run untrue or vibrate during use. Damaged diamond cutting discs can burst apart and cause injuries.

Practical Advice

▶ Exercise caution when cutting slots in structural walls; see the "Information on structural design" section.
▶ 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.
▶ Work with cutting depths greater than 20 mm in hard materials, e.g. concrete, over several work operations, so as not to overload the motor.
▶ Clamp the workpiece if it is not secure under its own weight.
▶ The power tool may only be used for dry cutting.
Diamond cutting discs become very hot while working; do not touch them until they have cooled.

Protect the cutting disc against impact, shock and grease. Do not subject the cutting disc to lateral pressure.

Do not attempt to reduce the speed of a diamond cutting disc coming to a stop by applying pressure from the side.

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.

If this happens, stop cutting and allow the diamond cutting disc to cool down by running the power tool for a short time at maximum speed with no load.

The cutting discs sharpen themselves. A noticeably decreasing work rate and sparking all around the rim of the disc are indications of a cutting disc that has become blunt. In this case, sharpen the cutting disc by making short cuts in abrasive material (e.g. sandstone). Sporadic sparking is normal when working on stone and is therefore not a problem.

Cutting Direction (see figure C)

The power tool must always work in an up-grinding motion. Otherwise there is a risk that it will be pushed uncontrolled out of the cut.

Information on Structural Design

Slots in load-bearing walls are subject to DIN 1053 part 1 or country-specific regulations. These regulations must be observed under all circumstances. Seek advice from the responsible structural engineer, architect or construction supervisor before starting work.

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 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.

Store and handle the accessories carefully.

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Replacing the carbon brushes (see figure D)

Check the length of the carbon brushes around every 2–3 months and replace both carbon brushes if required. Never replace only a single carbon brush.

Note: Only use carbon brushes supplied by Bosch and intended specifically for your product.

  • Unscrew the caps (17) using a suitable screwdriver.
  • Replace the spring-loaded carbon brushes (18) and screw on the caps again.

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 Sdn. Bhd.(220975-V) PT/SMY

No. 8A, Jalan 13/6

46200 Petaling 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.

BOSCH GDC 140 Professional - Disposal - 1

Do not dispose of power tools along with household waste.

Français

Robert Bosch Morocco SARL

53, Rue Lieutenant Mahroud Mohamed

20300 Casablanca

Tel.: +212 5 29 31 43 27

E-Mail: sav.outillage@ma.bosch.com

www.bosch-pt.com/serviceaddresses

www.bosch-pt.com/serviceaddresses

Eliminação

www.bosch-pt.com/serviceaddresses

处理废弃物

www.bosch-pt.com/serviceaddresses

廢棄物處理

www.bosch-pt.com/serviceaddresses

การกำจัดขยะ

Palma Tower 10th Floor

Jalan RA Kartini II-S Kaveling 6

Pondok Pinang, Kebayoran Lama

www.bosch-pt.com/serviceaddresses

Cara membuang

www.bosch-pt.com/serviceaddresses

Sự thải bổ

Robert Bosch Morocco SARL

www.bosch-pt.com/serviceaddresses

www.bosch-pt.com/serviceaddresses

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Product information

Brand : BOSCH

Model : GDC 140 Professional

Category : Saw