BOSCH GUS 12V-300 Professional Cordless Universal Shear Owner’s Manual

: June 9, 2024
: Bosch

Table of Contents

BOSCH GUS 12V-300 Professional Cordless Universal Shear
Product Information
Usage Instructions
- Safety Instructions
Product Description and Specifications
- Product Features
- Using and Handling the Cordless Cutter
Assembly
Operation
Maintenance and Service
Accessories
EU Declaration of Conformity
References
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Download This Manual (PDF format)

BOSCH GUS 12V-300 Professional Cordless Universal Shear

Product Information

The Bosch GUS 12V-300 Professional is a cordless universal cutter suitable for cutting a wide range of materials.
The tool has a 12V lithium-ion battery and a no-load speed of 700 to 2300 rpm.
The cutter has a cutting capacity of approximately 1.2-1.4 meters per battery charge.
The recommended battery for use with the GUS 12V-300 is the GBA 12V battery, which is sold separately.
The tool weighs approximately 1.2 to 1.4 kilograms, as per the EPTA-Procedure 01:2014 standard.

Usage Instructions

Safety Instructions

Read and follow all safety instructions provided in the manual before using the tool.
The term “power tool” in the safety instructions refers to both mains-powered tools (with a power cord) and battery-powered tools (without a power cord).
If operating the tool in damp conditions is unavoidable, use a residual current device (RCD) to reduce the risk of electric shock.
Avoid touching live electrical components when using the tool.
Do not attempt to repair the tool yourself. Seek help from a qualified technician and only use genuine replacement parts to ensure tool safety.
Avoid working with asbestos-containing materials as they are known to be carcinogenic.

General Power Tool Safety Warnings

WARNING
Read all safety warnings, instruc-tions, illustrations and specifications provided with this power tool. Failure to follow all in-structions listed below 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 (cord-less) 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 exten-sion 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 per-sonal injury.
Use personal protective equipment. Always wear eye protection. Protective equipment such as a 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 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 and clothing 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.
Do not let familiarity gained from the frequent use of tools allow you to become complacent and ignore tool safety principles. A careless action can cause severe injury within a fraction of a second.

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 remove the battery pack, if detachable, 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 and accessories. 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.
Keep handles and grasping surfaces dry, clean and free from oil and grease. Slippery handles and grasping surfaces do not allow for safe handling and control of the tool in unexpected situations.

Battery tool use and care

Recharge only with the charger specified by the manu-facturer. A charger that is suitable for one type of bat-tery pack may create a risk of fire when used with another battery pack.
Use power tools only with specifically designated battery packs. Use of any other battery packs may create a risk of injury and fire.
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.
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.
Do not use a battery pack or tool that is damaged or modified. Damaged or modified batteries may exhibit unpredictable behavior resulting in fire, explosion or risk of injury.
Do not expose a battery pack or tool to fire or excessive temperature. Exposure to fire or temperature above 130°C may cause an explosion.
Follow all charging instructions and do not charge the battery pack or tool outside the temperature range specified in the instructions. Charging improperly or at temperatures outside the specified range may damage the battery and increase the risk of fire.

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.
Never service damaged battery packs. Service of battery packs should only be performed by the manufacturer or authorized service providers.

Safety instructions for the cordless universal cutter

Do not work on any material containing asbestos. Asbestos is a carcinogenic substance.
Watch out for live cables when cutting. There is a risk of electric shock.
Never guide your hand in front of the blade when cutting. This poses a risk of injury.
In case of damage and improper use of the battery, vapours may be emitted. The battery can set alight or ex-plode. Ensure the area is well ventilated and seek medical attention should you experience any adverse effects. The vapours may irritate the respiratory system.
Do not open the battery. There is a risk of short-circuit-ing.
The battery can be damaged by pointed objects such as nails or screwdrivers or by force applied externally. An internal short circuit may occur, causing the battery to burn, smoke, explode or overheat.
Only use the battery with products from the manufac-turer. This is the only way in which you can protect the battery against dangerous overload.
Protect the battery against heat, e.g. against continuous intense sunlight, fire, dirt, water and moisture. There is a risk of explosion and short-circuiting.

Product Description and Specifications

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

Intended use
The power tool is intended for cutting flexible, soft materials (such as carpet, PVC, cardboard, leather, fabrics and similar materials) of up to 11 mm in thickness. It is suitable for straight and curved cuts.

Product Features

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

the power tool on the graphics page.
Knurled screw
Cut Control cutting line
Adjustable protective guard
On/off switch
Handle (insulated gripping surface)
Battery)
Battery release button)
Button for battery charge indicator
Battery charge indicator
Cutting blade
Screw for securing the blade
Guide runner $BOSCH-GUS-12V-300-Professional-Cordless-Universal-Shear-fig- $1$$

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

Using and Handling the Cordless Cutter

Ensure the battery is fully charged before commencing work.
Insert the battery into the tool as instructed in the manual.
Use appropriate cutting blades compatible with the GUS 12V-300 model.
Ensure that the blade is securely attached and tightened before use.
When not in use, store the tool and battery in a cool and dry place.
Avoid short-circuiting between battery contacts as it may result in burns or fire.

Technical Details:

The recommended operating temperature range for charging the battery is between 0 and 35 degrees Celsius.
The recommended operating and storage temperature range for the tool is -20 to +50 degrees Celsius.

Note: The user manual provides detailed illustrations and component numbering for reference.

Cordless universal cutter/GUS 12V-300

Article number 3 601 JB2 9..
Rated voltage V= 12
No-load speed n0 min−1 700
Cutting capacity per battery charge approx.A) m 230
Weight according to EPTA-Procedure 01:2014 kg 1.2−1.4B)
Recommended ambient temperature during charging °C 0 … +35
Permitted ambient temperature during operation) and during storage °C −20 to +50
Recommended batteries GBA 12V…
Recommended chargers
- GAL 12…
- GAX 18…
A) Based on 4 mm PVC and with 1.5 Ah battery
B) Depends on battery in use
C) Limited performance at temperatures <0 °C

Noise/Vibration Information
Noise emission values determined according to

EN 62841‑1.
Typically, the A-weighted sound pressure level of the power tool is less than 70 dB(A). The noise level when working can exceed the volume stated. Wear hearing protection! Vibration total values ah (triax vector sum) and uncertainty K determined according to EN 62841‑1:ah < 2.5 m/s2, K = 1.5 m/s2.

The vibration level and noise emission value given in these instructions have been measured in accordance with a standardized measuring procedure and may be used to compare power tools. They may also be used for a preliminary estimation of vibration and noise emissions.

The stated vibration level and noise emission value represents the main applications of the power tool. However, if the power tool is used for other applications, with different application tools or is poorly maintained, the vibration level and noise emission value may differ. This may significantly increase the vibration and noise emissions over the total working period.
To estimate vibration and noise emissions accurately, the times when the tool is switched off or when it is running but not actually being used should also be taken into account. This may significantly reduce vibration and noise emissions over the total working period.

Implement additional safety measures to protect the operator from the effects of vibration, such as servicing the power tool and application tools, keeping their hands warm, and organizing workflows correctly.

Assembly

Remove the battery from the power tool before carry-ing out work on the power tool (e.g. maintenance, changing tool, etc.). The battery should also be re-moved for transport and storage. There is risk of injury from unintentionally pressing the on/off switch.

Battery Charging

Use only the chargers listed in the technical data. Only these chargers are matched to the lithium-ion battery of your power tool.

Note:
The battery is supplied partially charged. To ensure full battery capacity, fully charge the battery in the 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 process does not damage the battery. The lithium-ion battery is protected against deep discharge by the “Electronic Cell Protection (ECP)”. When the battery is discharged, the power tool is switched off by means of a protective circuit: The application tool no longer rotates.

Do not continue to press the On/Off switch after the power tool has automatically switched off. The battery can be damaged.

Removing the Battery (see figure A)
To remove the battery (6), press the battery release buttons (7) and pull the battery out of the power tool. Do not use force to do this. $BOSCH-GUS-12V-300 -Professional-Cordless-Universal-Shear-fig- $2$$

Battery charge indicator
The three green LEDs on the battery charge indicator (9) in-dicate the state of charge of the battery (6). For safety reas-ons, it is only possible to check the state of charge when the power tool is not in operation.

To display the state of charge, press and hold the battery charge indicator button (8) when the power tool is switched off.

LEDs/Capacity

3× continuous green light ≥66 %
2× continuous green light ≥33 %
1× continuous green light <33 %
1× flashing green light Reserve

Changing the Tool (see figures B1−B2)

Before removing, allow the blade to cool down.
The blade can become warm during operation.

Loosen the knurled screw (1) and push the protective guard (3) all the way to the top.
Use a screwdriver to turn the blade (10) until a hole opens in the blade.
Insert a thin, stable object (e.g. a nail) in the open hole in order to block the blade.
Undo the screw for securing the blade (11) in the rotational direction ➊.
Remove the object used to block the blade.
Lift the blade (10) slightly and pull it down and out.
Place the blade on the tool holder with the ground edge facing outwards. Ensure that the blade clicks into place in the tool holder.
Retighten the screw for securing the blade (11) in rotational direction ➋.
Adjust the protective guard (3) to the material thickness to be cut and tighten the knurled screw (1).

Adjusting the Protective Guard
Never use the power tool without the protective guard.

To protect your fingers from injuries, the protective guard (3) must be adjusted to the material thickness being cut before each work step. To do this, loosen the knurled screw (1). Adjust the protect-ive guard (3) (in the range 2−11 mm) so that it loosely rests against the material to be cut. Retighten the knurled screw. Adjust the protective guard (3) to the bottom position after each use as well as before all work on the power tool.

Operation

Starting Operation

Inserting the Battery
Insert the charged battery (6) into the battery receptacle, making sure you feel it engage and that it is securely locked in place.

Switching On and Off
To switch on the power tool, slide the on/off switch (4) for-wards so that I appears on the switch.

To switch off the power tool, slide the on/off switch (4) backwards so that 0 appears on the switch.

Practical advice

Remove the battery from the power tool before carrying out work on the power tool (e.g. maintenance, changing tool, etc.). The battery should also be re-moved for transport and storage. There is risk of injury from unintentionally pressing the on/off switch.
Do not load the power tool so heavily that it comes to a stop.
Never touch the blade during operation.

The cutting performance of the power tool depends on the materials to be cut and on the state of charge of the battery. Excessive feed significantly reduces the performance of the power tool, depending on the battery charge.

The guide runner (12) must be aligned parallel to the cutting surface and must not become wedged during cutting. Always keep the blade clean and free of material residue. Improper use of the blade will cause it to become blunt. Thin materials, such as fabrics, can be pulled into the power tool during cutting and become wedged. To avoid this, do not push too hard when working with thesematerials, in order to ensure an optimal cut. Keep the material taut whilst cutting and cut slowly. Do not remove material that has been inserted during opera-tion. Switch off the power tool with the on/off switch (4) beforehand. Optimal cutting results are best achieved through practice.

Cut Control cutting-line mark
The red line on the protective guard (3) (Cut Control cutting-line mark (2)) indicates the cutting line of the blade (10). This enables you to guide the power tool precisely along the cutting line marked on the material.

Temperature-dependent overload protection
In normal conditions of use, the power tool cannot be overloaded. If the power tool is overloaded or not kept within the permitted battery temperature range, the speed is reduced or the power tool switches off. At reduced speed, the power tool will run again at full speed once the permitted battery temperature is reached or the load is reduced. If it automatically shuts down, switch the power tool off, allow the battery to cool down, then switch the power tool back on.
Recommendations for Optimal Handling of the Battery

Protect the battery against moisture and water.
Only store the battery within a temperature range of −20 to 50 °C. Do not leave the battery in your car in the summer, for example.
Occasionally clean the ventilation slots on the battery using a soft brush that is clean and dry.
A significantly reduced operating time after charging indicates that the battery has deteriorated and must be replaced. Follow the instructions on correct disposal.

Maintenance and Service

Maintenance and Cleaning

Remove the battery from the power tool before carrying out work on the power tool (e.g. maintenance, changing tool, etc.). The battery should also be re-moved for transport and storage. There is risk of injury from unintentionally pressing the on/off switch.
To ensure safe and efficient operation, always keep the power tool and the ventilation slots clean.
During cutting, material residues may collect under the protective guard.
Clean the protective guard (3) regularly with a brush or a slightly dampened cloth.

After-Sales Service and Application Service
Our after-sales service responds to your questions concerning the 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.

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.

You can find further service addresses at:
www.bosch-pt.com/serviceaddresses.

Transport
The recommended lithium-ion batteries are subject to legislation on the transport of dangerous goods. The user can transport the batteries by road without further require-ments. When shipping by third parties (e.g.: by 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 battery packs 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 the possibility of more detailed national regulations.

Disposal

Power tools, 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!

Only for EU countries:
According to Directive 2012/19/EU on waste electrical and electronic equipment and its transposition into national law, power tools that are no longer usable, and, according to Directive 2006/66/EC, defective or drained batteries must be collected separately and disposed of in an environmentally correct manner.

If disposed of incorrectly, waste electrical and electronic equipment may have harmful effects on the environment and human health, due to the potential presence of hazardous substances.

Only for the United Kingdom:
According to Waste Electrical and Electronic Equipment Regulations, 2013 (2013/3113) and the Waste Batteries and Accumulators Regulations 2009 (2009/890), power tools that are no longer usable must be collected separately and disposed of in an environmentally friendly manner.

Battery packs/batteries:

Li-ion:
Please observe the notes in the section on transport.

Accessories

$BOSCH-GUS-12V-300-Professional-Cordless-Universal-Shear-fig- $5$$

EU Declaration of Conformity

Cordless universal cutter

Article number

We declare under our sole responsibility that the stated products comply with all applicable provisions of the directives and regulations listed below and are in conformity with the following standards.

Technical file at: $BOSCH-GUS-12V-300-Professional-Cordless-Universal- Shear-fig- $6$$

Cordless universal cutter Article number
GUS 12V-300 3 601 JB2 901

We declare under our sole responsibility that the stated products comply with all applicable provisions of the regulations listed below and are in conformity with the following standards.

Technical file at:
Robert Bosch Ltd. (PT/SOP-GB), Broadwater Park, North Orbital Road, Uxbridge UB9 5HJ, United Kingdom

The Supply of Machinery (Safety) Regulations 2008
The Electromagnetic Compatibility Regulations 2016
The Restriction of the Use of Certain Hazardous Substances in
Electrical and Electronic Equipment Regulations 2012
EN 62841-1:2015
EN 55014-1:2017+A11:2020
EN 55014-2:2015
EN IEC 63000:2018

BOSCH
Robert Bosch Power Tools GmbH, 70538 Stuttgart, Germany represented (in terms of the above regulations) by Robert Bosch Limited, Broadwater Park, North Orbital Road, Uxbridge UB9 5HJ, United Kingdom $BOSCH-GUS-12V-300 -Professional-Cordless-Universal-Shear-fig- $7$$

Robert Bosch Ltd. Broadwater Park, North Orbital Road, Uxbridge UB9 5HJ, United Kingdom, as authorized representative acting on behalf of Robert Bosch Power Tools GmbH, 70538 Stuttgart, Germany.