Bosch GKF 12V-8 press cutter Instruction Manual

BOSCH GKF 12V-8 press cutter Instruction

Safety Notes

General Power Tool Safety Warnings

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. 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 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, 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 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 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 Routers

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.
The rated speed of the accessory must be at least equal to the maximum speed marked on the power tool. If accessories run faster than their rated speed, they may break.
Router bits or other accessories must fit exactly in the tool holder (collet) of your machine. Routing bits that do not fit precisely in the tool holder of the machine rotate irregularly, vibrate heavily and can lead to loss of control.
Apply the machine to the workpiece only when switched on. Otherwise, there is a danger of kickback when the cutting tool jams in the workpiece.
Never cut over metal objects, nails or screws. The router bit can become damaged and lead to increased vibrations.
Use appropriate detectors to determine if utility lines are hidden in the work area or call the local utility company for assistance. Contact with electric lines can lead to fire and electric shock. Damaging a gas line can lead to explosion. Penetrating a water line causes property damage.
Do not use blunt or damaged router bits. Blunt or damaged router bits cause increased friction, can become jammed and lead to imbalance.
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. Danger of explosion.
In case of damage and improper use of the battery, vapours 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.

Parts

Assembly

Product Description and Specifications

Intended Use

The power tool is intended for milling edges and profiles in wood, plastic and non-metallic lightweight materials while resting firmly on the workpiece.

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

Battery pack*
Battery unlocking button*
Temperature control/overload protection indicator
Battery charge-control indicator
On/Off switch
Marking arrow for spindle lock
Spindle lock lever
Depth-of-cut coarse adjustment button
Tightening nut with collet
Thumbwheel for depth-of-cut fine adjustment
Depth-of-cut adjuster fixing screw
Base plate
Handle
Depth-of-cut adjuster locking wheel
Collet
Tool holder
Router bit*
Open-end spanner (17 mm)
Smooth guide column

Technical Data

Noise/Vibration Information

Sound emission values were determined according to EN 60745-2-17. Typically the A-weighted sound pressure level of the product is 73 dB(A). Uncertainty K=3 dB. The noise level when working can exceed 80 dB(A).

Wear hearing protection!

Vibration total values ah (triax vector sum) and uncertainty K determined according to EN 60745-2-17 (no load): ah<2.5 m/s2 , K=1.5 m/s2 . The vibration level given in this information sheet has been measured in accordance with a standardized test given in EN 60745 and may be used to compare one tool with another. It may be used for a preliminary assessment of exposure. The declared vibration emission level represents the main applications of the tool. However, if the tool is used for different applications, with different accessories or insertion tools or is poorly maintained, the vibration emission may differ. This may significantly increase the exposure level over the total working period. An estimation of the level of exposure to vibration should also take into account the times when the tool is switched off or when it is running but not actually doing the job. This may significantly reduce the exposure level over the total working period. Identify additional safety measures to protect the operator from the effects of vibration such as: maintaining the tool and the accessories, keep the hands warm, organization of work patterns

Assembly

Battery Charging

Note: The battery supplied is partially charged. To ensure 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 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.

Removing the battery
To remove battery 1, press the battery unlocking button 2 and pull the battery upward out of the power tool. Do not exert any force.

Battery Charge-control Indication

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

Changing the Tool

Depending on the routing tool being used, the tightening nut with the collet 9 may need to be replaced before inserting the router bit. When the right collet for your router bit is already mounted, follow the work steps as described under “Inserting a Router Bit”. The collet 15 must have a slight amount of play when seated in the tightening nut. The tightening nut 9 must assemble easily. Should the tightening nut or collet be damaged, replace it immediately. Pull out the spindle locking lever 7 up to the marking arrow 6 on the housing. If necessary, turn the motor spindle manually until it is locked in place. Six positions offset by 60° are possible. Unscrew the tightening nut 9 with open-end spanner 18 turning in an anticlockwise direction. If required, clean all parts to be mounted prior to assembling, using a soft brush or by blowing out with compressed air. Start the new tightening nut on tool holder 16. Hand-tighten the tightening nut. Slide the spindle locking lever 7 back into the housing
Inserting a Router Bit (see figure C)
Depending on the application, router bits are available in the most different designs and qualities. Router bits made of high-speed steel (HSS) are suitable for the machining of soft materials, e. g. softwood and plastic. Milling cutters with carbide tips are specially designed for hard and abrasive materials, such as hardwood. Original router bits from the extensive Bosch accessories program are available at your specialist shop. Only use clean router bits that are in perfect condition. Pull out the spindle locking lever 7 up to the marking arrow 6 on the housing. If necessary, turn the motor spindle manually until it is locked in place. Six positions offset by 60° are possible. Loosen the tightening nut 9 with the open-end spanner by turning in an anticlockwise direction 18. Insert the router bit into the collet. The shank of the router bit must be immersed at least 20 mm into the collet. Retighten the tightening nut by turning in a clockwise direction. Slide the spindle locking lever 7 back into the housing.

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 on.

Operation

Place the machine with the router bit mounted on the workpiece to be machined. Turn the locking wheel 14 anti-clockwise approximately half a revolution to unlock the depth-of-cut adjuster. Push and hold the depth-of-cut coarse adjustment button 8. Move the drive unit up or down and adjust the cutting depth to approximately the required position. Release the 8 button. Use the thumbwheel 10 to set the exact cutting depth required. Each revolution of the thumbwheel alters the cutting depth by 1 mm. Turn the locking wheel 14 clockwise approximately half a revolution to lock the depth-of-cut adjuster. Check the adjusted depth of cut with a trial cut and correct it, if necessary. If you want to keep the tool at the cutting depth you have set, you can screw the fixing screw 11 into the depth-of-cut fine adjustment thumbwheel 10.

Starting Operation

Inserting the battery
Note: Use of batteries not suitable for the machine can lead to malfunctions of or cause damage to the power tool. Insert the charged battery 1 into the battery port until it can be felt to engage and is seated flush.
Switching On and Off
To switch on the power tool, slide the On/Off switch 5 down so that “I” appears on the switch. To switch off the power tool, slide the On/Off switch 5 up so that “0” appears on the switch. To save energy, only switch the power tool on when using it.

Working Advice

Before any work on the machine itself (e.g. maintenance, tool change, etc.), remove the battery from the power tool. There is a danger of injury when unintentionally actuating the On/Off switch.
Protect router bits against shock and impact. Direction of Feed and Routing Process (see figure F–G)
The feed motion of the router bit 17 must always be carried out against the rotation direction of the router bit (up-cutting). When routing in the rotation direction of the router bit (down-cutting), the machine can break loose, eliminating control by the user.
Note: Take into consideration that the router bit 17 always extends out of the base plate 12. Do not damage the template or the workpiece. Set the desired depth of cut. Switch the machine on and guide it to the location subject to working. Carry out the routing process applying uniform feed. Switch the machine off after finishing the routing process.
Do not place the power tool down until after the router bit has come to a complete stop. Coasting application tools can cause injuries.

For edge milling and profile milling, the milling cutter must be fitted with a pilot pin or a ball bearing. We recommend using milling cutters with a ball bearing. Guide the switched-on power tool from the side toward the workpiece until the pilot or the ball bearing of the router bit faces against the workpiece edge to be machined. Guide the machine alongside the workpiece edge. Ensure that the tool rests on the workpiece at the correct angle. Excessive pressure can damage the edge of the workpiece. The following maximum workpiece dimensions apply for edge and profile milling operations:

Hardwood 10 6
Softwood 12 10
Plastic 12 10
MDF sheets 12 10
Plywood sheets 10 6

Temperature Control/Overload Protection Indicator

The red LED indicator 3 helps you to protect the battery against overheating and the drive against overheating and overload.
If the LED indicator 3 is lit up permanently in red, the temperature of the battery or drive unit is too high. The power tool switches off automatically.

Switch the power tool off.
Allow the battery and power tool to cool down before you carry on working.
The LED indicator 3 flashes red, the power tool is blocked and switches off automatically.
Switch the power tool off.
Remove the power tool from the workpiece.
Unlock the spindle lock if necessary.
As soon as the blockade has been removed and the motor spindle is able to turn freely again, you can switch the power tool back on.
Recommendations for Optimal Handling of the Battery 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. 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 danger of injury when unintentionally actuating the On/Off switch.
For safe and proper working, always keep the machine and ventilation slots clean. Clean the power tool with a vacuum cleaner, paintbrush or hand brush after use. Ensure that the guide columns are free of wood dust. Apply a drop of lubricant to the smooth guide column 19 (see figure I).

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. 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. 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: [email protected]

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 labelling 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.

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Bosch GKF 12V-8 press cutter Instruction Manual

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