BOSCH 130 GKS Professional Instruction Manual

: June 14, 2024
: Bosch

BOSCH 130 GKS Professional Instruction Manual

Safety Notes

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 the 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 that may ignite 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 the 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, and 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. The 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. The 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 masks, non-skid safety shoes, hard hats, 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 a 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.
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 jewelry. Keep your hair, clothing, and gloves away from moving parts. Loose clothes, jewelry, 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. The 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 performed. Use of the power tool for operations different from those intended could result in a hazardous situation.

Battery tool use and care

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.
Use power tools only with specifically designated battery packs. The use of any other battery packs may create a risk of injury and fire.
When the 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.
Under abusive conditions, liquid may be ejected from the battery; avoid contact. If contact accidentally occurs, flush with water. If liquid contacts the eyes, additionally seek medical help. Liquid ejected from the battery may cause irritation or burns.

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 Warnings for Circular Saws

Cutting procedures

DANGER: Keep hands away from the cutting area and the blade. Keep your second hand on the auxiliary handle, or motor housing. If both hands are holding the saw, they cannot be cut by the blade.
Do not reach underneath the workpiece. The guard cannot protect you from the blade below the workpiece.
Adjust the cutting depth to the thickness of the workpiece. Less than a full tooth of the blade teeth should be visible below the workpiece
Never hold a piece being cut in your hands or across your leg. Secure the workpiece to a stable platform. It is important to support the work properly to minimize body exposure, blade binding, or loss of control
Hold the power tool by insulated gripping surfaces only, when performing an operation where the cutting tool may contact hidden wiring. Contact with a “live” wire will also make exposed metal parts of the power tool “live” and could give the operator an electric shock.
When ripping, always use a rip fence or straight edge guide. This improves the accuracy of the cut and reduces the chance of blade binding.
Always use blades with the 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 a loss of control.
Never use damaged or incorrect blade washers or bolts. The blade washers and bolt were specially designed for your saw, for optimum performance and safety of operation
Kickback causes and Related Warnings: Kickback is a sudden reaction to a pinched, bound, or misaligned saw blade, causing an uncontrolled saw to lift up and out of the workpiece toward the operator; – When the blade is pinched or bound tightly by the kerf closing down, the blade stalls and the motor reaction drives the unit rapidly back toward the operator; – If the blade becomes twisted or misaligned in the cut, the teeth at the back edge of the blade can dig into the top surface of the wood causing the blade to climb out of the kerf and jump back toward the operator. Kickback 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. Position your body to either side of the blade, but not in line with the blade. Kickback could cause the saw to jump backward, but kickback forces can be controlled by the operator, if proper precautions are taken.
When the blade is binding, or when interrupting a cut for any reason, release the trigger and hold the saw motionless in the material until the blade comes to a complete stop. Never attempt to remove the saw from the work or pull the saw backward while the blade is in motion or kickback may occur. Investigate and take corrective actions to eliminate the cause of blade binding.
When restarting a saw in the workpiece, center the saw blade in the kerf and check those saw teeth are not engaged in the material. If the saw blade is binding, it may walk up or kick back from the workpiece as the saw is restarted.
Support large panels to minimize 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 blades. Unsharpened or improperly set blades produce narrow kerf causing excessive friction, blade binding, and kickback.
Blade depth and bevel-adjusting locking levers must be tight and secure before making cuts. If blade adjustment shifts while cutting, it may cause binding and kickback.
Use extra caution when sawing into existing walls or other blind areas. The protruding blade may cut objects that can cause kickback.

Lower guard function

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, at all angles and depths of the 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.
The lower guard may be retracted manually only for special cuts such as “plunge cuts and angle cuts”. Raise the lower guard by retracting the handle and as soon as the blade enters the material, release the lower guard. For all other sawing operations, the lower guard should operate automatically.
Always observe that the lower guard is covering the blade before placing the saw down on the bench or floor. An unprotected, coasting blade will cause the saw to walk backward, cutting whatever is in its path. Be aware of the time it takes for the blade to stop after the switch is released.

Additional safety warnings

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 an explosion. Penetrating a water line causes property damage.
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.
When working with the machine, always hold it firmly with both hands and provide a secure stance. The power tool is guided more securely with both hands.
Secure the workpiece. A workpiece clamped with clamping devices or in a vice is held more secure than by hand.
Always wait until the machine 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 open the battery. The danger of short-circuiting.
Protect the battery against heat, e. g., against continuous intense sunlight, fire, water, and moisture. The danger of explosion.
In case of damage and improper use of the battery, vapors may be emitted. Ventilate the area and seek medical help in case of complaints. The vapors can irritate the respiratory system.
Use the battery only in conjunction with your Bosch power tool. This measure alone protects the battery against dangerous overload.
The battery can be damaged by pointed objects such as nails or screwdrivers or by force applied externally. An internal short circuit can occur and the battery can burn, smoke, explode or overheat.

Product Description and Specifications

Read all safety warnings and all instructions. Failure to follow the warnings and instructions may result in electric shock, fire and/or serious injury.

Intended Use

The power tool is intended for sawing ferrous metals up to a cutting depth of 50 mm. The power tool is not intended for working on wood materials.

Product Features

The numbering of the product features refers to the illustration of the machine on the graphics page.

Lock-off button for On/Off switch
On/Off switch
Battery pack
Blade guard
Lever for retracting blade guard
Base plate
Retracting blade guard
Parallel guide
Cutting mark, 0°
Cutting mark, 45°
Wing bolt for bevel-angle preselection
Wing bolt for the parallel guide
Scale for miter angle
Spindle lock button
Auxiliary handle (insulated gripping surface)
Hex key
Handle (insulated gripping surface)
Saw spindle
Mounting flange
Saw blade
Clamping flange
Clamping bolt with washer
Marks on the blade guard
Battery unlocking button
Fastening screw for extraction adapter
Extraction adapter
Vacuum hose
Cutting-depth scale
Clamping lever for cutting-depth preselection
Set of screw clamps
Button for charge-control indicator
Battery charge-control indicator
Guide rail
Connection piece

Accessories shown or described are not part of the standard delivery scope of the product. A complete overview of accessories can be found in our accessories program.

Technical Data

Assembly

Battery Charging

Use only the battery chargers listed on the accessories page. Only these battery chargers are matched to the lithium-ion battery of your power tool.

Note: The battery supplied is partially charged. To ensure the full capacity of the battery, completely charge the battery in the battery charger before using your power tool for the first time.

The lithium-ion battery can be charged at any time without reducing its service life. Interrupting the charging procedure does not damage the battery.
The lithium-ion battery is protected against deep discharging by “Electronic Cell Protection (ECP)”. When the battery is empty, the machine is switched off by means of a protective circuit: The inserted tool no longer rotates.
Do not continue to press the On/Off switch after the machine has been automatically switched off. The battery can be damaged.
The battery is equipped with an NTC temperature control which allows charging only within a temperature range of between 0 °C and 45 °C. A long battery service life is achieved in this manner. Observe the notes for disposal.

Removing the battery

Battery 3 is equipped with two locking levels that should prevent the battery from falling out when pushing the battery unlocking button 24 unintentionally. As long as the battery is inserted in the power tool, it is held in position by means of a spring. To remove the battery 3, press the battery unlocking button 24 and pull the battery out of the power tool toward the rear. Do not exert any force.

Battery Charge-control Indication

The three green LEDs of the battery charge-control indicator 32 indicate the charge condition of the battery 3. For safety reasons, it is only possible to check the status of the charge condition when the machine is at a standstill. Press button 31 to indicate the charge condition. This is also possible when battery 3 is removed.

LED	CAPACITY
Continuous lighting 3 x green	>_.2/3
Continuous lighting 2 x green	>_1/3
Continuous lighting 1 x green	< 1/3
Flashing light 1 x green	Reserve

When no LED lights up after pushing button 24, then the battery is defective and must be replaced.

Mounting/Replacing the Saw Blade

Before any work on the power tool, remove the battery.
When mounting the saw blade, wear protective gloves. The danger of injury when touching the saw blade.
Only use saw blades that correspond with the characteristic data given in the operating instructions.
- Use only saw blades with a diameter of min. 130 mm and max. 136 mm.
Do not under any circumstances use grinding discs as the cutting tool.

Selecting a Saw Blade

An overview of recommended saw blades can be found at the end of this manual.

Removal of the Saw Blade

For changing the cutting tool, it is best to place the machine on the face side of the motor housing.

Press the spindle lock button 1 and keep it pressed.
The spindle lock button 1 may be actuated only when the saw spindle is at a standstill. Otherwise, the power tool can be damaged.
- Tilt back the retracting blade guard 21 and hold firmly.
Remove the clamping flange 17 and the saw blade 18 from the saw spindle 20.

Mounting the Saw Blade

For changing the cutting tool, it is best to place the machine on the face side of the motor housing.

Clean the saw blade 20 and all clamping parts to be assembled.
Tilt back the retracting blade guard 7 and hold firmly.
Place the saw blade 18 onto the mounting flange 19. The cutting direction of the teeth (direction of the arrow on the saw blade) and the direction-of-rotation arrow on the retracting blade guard 21 must correspond.
Mount the clamping flange 17 and screw in the clamping bolt 16 turning in the rotation direction. Observe the correct mounting position of mounting flange 19 and clamping flange 21.
- Tighten the clamping bolt 16 with the Allen key 22 by turning in rotation direction 2. The tightening torque is 6–9 Nm, which corresponds to hand tight plus ¼ turn or 3 graduation marks of the marks 23 on the blade guard 4.

Dust/Chip Extraction

Before any work on the power tool, remove the battery.
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.
To achieve a high degree of dust extraction, use the vacuum cleaner type GAS 25/GAS 50/GAS 50 M for wood or GAS 50 MS for wood and/or mineral dust in conjunction with this power tool.
Observe the relevant regulations in your country for the materials to be worked.

Mounting the Extraction Adapter

Fasten the extraction adapter 26 to the base plate 6 with the fastening screw 25. A vacuum hose with a diameter of 35 mm can be connected to the extraction adapter 26.

The extraction adapter may not be mounted when no external dust extraction is connected. Otherwise the extraction channel can become clogged.
Do not connect a dust bag to the extraction adapter. Otherwise the extraction system can become clogged.
To ensure optimum extraction, the extraction adapter 26 must be cleaned regularly.

External Dust Extraction

Connect the vacuum hose 27 to a vacuum cleaner (accessory).
An overview for connecting to various vacuum cleaners can be found at the end of this manual.
The vacuum cleaner must be suitable for the material being worked.
When vacuuming dry dust that is especially detrimental to health or carcinogenic, use a special vacuum cleaner.

Operation

Operating Modes

Before any work on the power tool, remove the battery.

Adjusting the Cutting Depth

Adjust the cutting depth to the thickness of the workpiece. Less than a full tooth of the blade teeth should be visible below the workpiece.

Loosen the clamping lever 29. For a smaller cutting depth, pull the saw away from the base plate 13; for a larger cutting depth, push the saw toward the base plate 13. Adjust the desired cutting depth at the cutting-depth scale. Tighten the clamping lever 10 again. The tightening tension of the clamping lever 10 can be readjusted. For this, unscrew the clamping lever 10, screw it back again turned offset by at least 30° in an anticlockwise direction.

Adjusting the Cutting Angle

It is best to place the machine on the face side of the blade guard 4. Loosen wing bolt 11. Tilt the saw sidewards. Adjust the desired setting at the scale 13. Tighten wing bolt 11 again.

Note: For bevel cuts, the cutting depth is smaller than the setting indicated on the cutting-depth scale 28.

Cutting Marks **

**

The cutting mark 12 indicates the position of the saw blade for straight cuts. For precise cuts, position the circular saw against the workpiece as shown in the figure. It is best to carry out a trial cut.

Utility Hook
Your tool is equipped with a utility hook 3 for hanging it, e. g., to a ladder, etc. Simply fold out the utility hook 3 to the required position.

When the tool is hanging by the utility hook, ensure that the saw blade is protected against unintended contact. The danger of injury. Fold the utility hook 3 back in again when you are ready to continue working.

Starting Operation

Inserting the battery

Use only original Bosch lithium-ion batteries with the voltage listed on the nameplate of your power tool. Using other batteries can lead to injuries and pose a fire hazard.

Insert the charged battery 9 into the base of the power tool until the battery is securely locked.

Switching On and Off

To start the machine, first, push the lock-off button for the On/Off switch 1 and then press the On/Off switch 2 and keep it pressed. To switch off the machine, release the On/Off switch 2.

Note: For safety reasons, the On/Off switch 1 cannot be locked; it must remain pressed during the entire operation. To save energy, only switch the power tool on when using it.

Run-on Brake

An integrated run-on brake reduces the run-on period of the saw blade after switching off the machine.

Protection Against Deep Discharging

The lithium-ion battery is protected against deep discharging by the “Electronic Cell Protection (ECP)”. When the battery is empty, the machine is switched off by means of a protective circuit: The inserted tool no longer rotates.

Working Advice

Protect saw blades against impact and shock. Guide the machine evenly and with light feed in the cutting direction. Excessive feed significantly reduces the service life of the saw blade and can cause damage to the power tool. 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.

Sawing Wood

The correct selection of the saw blade depends on the type and quality of the wood and whether lengthway or crossway 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.

Sawing with Parallel Guide

The parallel guide 8 enables exact cuts along a workpiece edge and cutting strips of the same dimension.

Sawing with Auxiliary Guide

For sawing large workpieces or straight edges, a board or strip can be clamped to the workpiece as an auxiliary guide; the base plate of the circular saw can be guided alongside the auxiliary guide.

Sawing with Guide Rail

The guide rail 33 is used to carry out straight cuts.

Note: Use the guide rail 33 only for right-angled cuts. When using for mitre cuts, the guide rail 33 can become damaged. The adhesive coating prevents the guide rail from slipping and protects the surface of the workpiece. The coating of the guide rail allows the circular saw to glide easily. Place the circular saw directly onto the guide rail 33. Fasten the guide rail 33 with suitable clamping devices, e. g., screw clamps, on the workpiece in such a manner that the narrow leg of the guide rail 33 faces toward the saw blade.

The guide rail 33 must not extend beyond the face side of the workpiece where the cut is to be started. Switch the machine on and guide it in the cutting direction applying moderate and steady feed. Two guide rails can be connected using the connection piece 34. Clamping is carried out with the four screws located in the connection piece.

Recommendations for Optimal Handling of the Battery

Protect the battery against moisture and water. Store the battery only within a temperature range between –20 °C and 50 °C. As an example, do not leave the battery in the car in summer. Occasionally clean the venting slots of the battery using a soft, clean and dry brush. A significantly reduced working period after charging indicates that the battery is used and must be replaced. Observe the notes for disposal.

Maintenance and Service

Maintenance and Cleaning

Before any work on the machine itself (e. g. maintenance, tool change, etc.) as well as during transport and storage, remove the battery from the power tool. There is a danger of injury when unintentionally actuating the On/Off switch.
For safe and proper working, always keep the machine and 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 produces poor cuts. Therefore, clean the saw blade immediately after use. 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 order, please always include the 10-digit article number given on the type plate of the machine.

After-sales Service and Application Service

In all correspondence and spare parts orders, please always include the 10-digit article number given on the type plate of the machine.
Our after-sales service responds to your questions concerning the maintenance and repair of your product as well as spare parts. Exploded views and information on spare parts can also be found under: www.bosch- pt.com

Bosch’s application service team will gladly answer questions concerning our products and their accessories.

CONTACTS

Great Britain
Robert Bosch Ltd. (B.S.C.)
P.O. Box 98
Broadwater Park North Orbital Road Denham Uxbridge UB 9 5HJ
At www.bosch-pt.co.uk you can order spare parts or arrange the collection of a product in need of servicing or repair.
Tel. Service: (0344) 7360109
E-Mail: boschservicecentre@bosch.com

Ireland

Origo Ltd.
Unit 23 Magna Drive Magna Business Park City West Dublin 24
Tel. Service: (01) 4666700
Fax: (01) 4666888

Australia, New Zealand, and Pacific Islands

Robert Bosch Australia Pty. Ltd.
Power Tools Locked Bag 66 Clayton South VIC 3169
Customer Contact Center
Inside Australia
Phone: (01300) 307044
Fax: (01300) 307045
Inside New Zealand
Phone: (0800) 543353
Fax: (0800) 428570
Outside AU and NZ
Phone: +61 3 95415555
www.bosch.com.au

Republic of South Africa

Customer service

Hotline: (011) 6519600
Gauteng – BSC Service Centre
35 Roper Street, New Centre Johannesburg
Tel: (011) 4939375
Fax: (011) 4930126
E-Mail: bsctools@icon.co.za

KZN – BSC Service Centre

Unit E, Almar Centre 143 Crompton Street Pinetown
Tel: (031) 7012120
Fax: (031) 7012446
E-Mail: bsc.dur@za.bosch.com

Western Cape – BSC Service Centre

Democracy Way, Prosperity Park Milnerton
Tel: (021) 5512577
Fax: (021) 5513223
E-Mail: bsc@zsd.co.za

Bosch Headquarters

Midrand, Gauteng
Tel: (011) 6519600
Fax: (011) 6519880
E-Mail: rbsa-hq.pts@za.bosch.com

Transport

The contained lithium-ion batteries are subject to the Dangerous Goods Legislation requirements. The user can transport the batteries by road without further requirements. When being transported by third parties (e.g.: air transport or forwarding agency), special requirements on packaging and labeling must be observed. For the preparation of the item being shipped, consulting an expert for hazardous material is required. Dispatch batteries only when the housing is undamaged. Tape or mask off open contacts and pack up the battery in such a manner that it cannot move around in the packaging. Please also observe possibly more detailed national regulations.

Disposal

The machine, rechargeable batteries, accessories, and packaging should be sorted for environmental-friendly recycling. Do not dispose of power tools and batteries/rechargeable batteries into household waste!

Battery packs/batteries

According to the European Guideline 2012/19/EU, power tools that are no longer usable, and according to the European Guideline 2006/66/EC, defective or used battery packs/batteries, must be collected separately and disposed of in an environmentally correct manner.

Batteries no longer suitable for use can be directly returned at

Great Britain

Robert Bosch Ltd. (B.S.C.)
P.O. Box 98
Broadwater Park North Orbital Road Denham Uxbridge UB 9 5HJ
At www.bosch-pt.co.uk you can order spare parts or arrange the collection of a product in need of servicing or repair.
Tel. Service: (0344) 7360109
E-Mail: boschservicecentre@bosch.com