BORMANN BGC1700 Slotting Mill 1700W User Manual

BORMANN BGC1700 Slotting Mill 1700W

Intended use/safety instructions

• The wall chaser is designed for cutting or slitting channels (chasing) in primarily mineral based materials such as reinforced concrete, masonry and paving, while firmly supported on the level surface, without water.
• Do not use bonded abrasive cut-off wheels or grinding discs. Use only diamond cut-off wheels.
• Materials that generate dusts or vapours that may be harmful to health must not be processed.
• The user bears sole responsibility for any damage caused by inappropriate use.
• Generally accepted accident prevention regulations and the enclosed safety information must be observed.

General Safety Information

Read all safety warnings and instructions. Failure to follow all safety warnings and instructions may result in electric shock, fire and/or serious injury. Keep all safety instructions and information for future reference. Pass on your power tool only together with these documents. 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 reinforced or 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 pos-s1bility of wheel breakage.
• 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. lf 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 and related warnings
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 snag-ging.
• 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 10mm 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. Over-stressing 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 kickback 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. Sup-ports 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..

WARNING

• Always wear protective goggles.
• Wear a suitable dust protection mask.
• Use only diamond cut-off wheels.
• Do not use bonded discs.
• Always push the machine in the stipulated direction through the material to be processed!
• See arrow on the guard. The wheel may bind, walk up or kickback if the power tool is restarted in the workpiece.
• Ensure that the place where you wish to work is free of power cables, gas lines or water pipes (e.g. check using a metal detector).
• The workpiece must lay flat and be secured against slipping, e.g. using clamps. Large workpieces must be sufficiently supported.
• The diamond cut-off wheels must fit without play in relation to the support flange. Do not use adapters or reducers.
• Diamond cut-off wheels must be stored and handled with care in accordance with the manufacturer’s instructions.
• Ensure that the diamond cut-off wheels are installed in accordance with the manufacturer’s instructions.
• Use elastic cushioning layers if they have been supplied with the grinding media and if required.
• Ensure the sparks emitted during use do not pose any risk, for example, to the user or other personnel and are not able to ignite inflammable substances.
• Areas at risk must be protected with flame- resistant covers. Always keep a fire extinguisher on hand when working in areas prone to fire risk.
• The diamond cut-off wheels continue running after the machine has been switched off.
• Always wear protective goggles, dust mask, gloves, ear protectors and sturdy shoes when working with this tool.
• Damaged, eccentric or vibrating tools must not be used.
• Avoid damage to gas or water pipes, electrical cables and load-bearing walls (static).
• Pull the plug out of the socket before making any adjustments, converting or servicing the machine.
• A damaged or cracked side handle must be replaced. Never operate the machine with a defective side handle.
• A damaged or cracked safety guard must be replaced. Never operate a machine with a defective safety guard.
• Do not switch on the tool if parts or guard devices are missing or defective.

Reducing dust exposure:

• Some of the dust created using this power tool may contain chemicals known to cause cancer, allergic reaction, respiratory disease, birth defects or other re-productive harm.
• Some of these substances include: lead (in paint containing lead), mineral dust (from bricks, concrete etc.), additives used for wood treatment (chromate, wood preservatives), some wood types (such as oak or beech dust), metals, asbestos.
• The risk from exposure to such substances will depend on how long you or people nearby are exposed to them.
• Do not let particles enter the body.
• Do the following to reduce exposure to these substances: ensure good ventilation of the workplace and wear appropriate protective equipment, such as respi-rators able to filter microscopically small particles.
• Observe the relevant guidelines for your material, staff, application and place of application (e.g. occupational health and safety regulations, disposal). Collect the particles generated at the source, avoid deposits in the surrounding area.
• Use suitable accessories for special work. In this way, fewer particles enter the environment in an uncontrolled manner.
• Use a suitable extraction unit.

Reduce dust exposure with the following measures:

•  Do not direct the escaping particles and the exhaust air stream at yourself or nearby persons or on dust deposits.
•  Use an extraction unit and/or air purifiers.
•  Ensure good ventilation oft he workplace and keep clean using a vacuum cleaner. Sweeping or blowing stirs up dust.
•  Vacuum or wash the protective clothing. Do not blow, beat or brush.

Technical Data

Rated voltage:| 230V| *  The manufacturer reserves the right to make minor changes to product design and technical specifications without prior notice unless these changes significantly affect the performance and safety of the products. The parts described / illustrated in the pages of the manual that you hold in your hands may also concern other models of the manufacturer’s product line with similar features and may not be included in the product you just acquired.

• Please note that our equipment has not been designed for use in commercial, trade or industrial applications. Our warranty will be voided if the machine is used in commercial, trade or industrial businesses or for equivalent purposes.

*  To ensure the safety and reliability of the product and the warranty validity, all repair, inspection, repair or replacement work, including maintenance and special adjustments, must only be carried out by technicians of the authorized service department of the manufacturer.

*  Always use the product with the supplied equipment. Operation of the product with non-provided equipment may cause malfunctions or even serious injury or death. The manufacturer and the importer shall not be liable for injuries and damages resulting from the use of non-conforming equipment.

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Frequency:| 50HZ
Input power:| 1700W
No load speed:| 10500RPM
Cutting Diameter:| 125mm
Cutting depth:| 25mm
Cutting width:| 30mm

Operating instructions

Mains connection

• Before commissioning, check that the rated mains voltage and mains frequency, as stated on the type plate match your power supply.
• Always install an RCD with a maximum trip current of 30mA upstream.
• Pay attention to a possibly short feed line and a large line cross-section of the mains cable.

Use/change diamond cut-off wheels, set groove width

• Switch off the machine. Disconnect the mains plug!
• Caution! Never press the locking button when the machine is running (nor when it is slowing down)!
• Do not use accessories which are not specifically designed and recommended by the tool manufacturer.
• Just because the accessory can be attached to your power tool, it does not assure safe operation.
  •  Set max. cutting depth.
  •  Press the spindle locking button, (with the other hand) rotate the front diamond cut-off wheel slowly until the spindle locking button engages perceptibly and
  •  With the pressed spindle locking button unscrew the clamping nut with the supplied 2- hole spanner (anti-clockwise).
• The clamping flange must always be fitted onto the spindle with the  sheath facing out.
• Pay attention that the clamping flange, in relation to the spindle, cannot be turned.
• Fit the diamond cut-off wheels and pay attention to the correct direction of rotation.
• The direction of rotation is specified by arrows on the diamond cut-off wheels and on the guard.
• Arrangement of the spacer rings and the diamond cut-off wheels (according to desired groove width).

Note: Using the machine with only one diamond cut-off wheel:

• If you remove the front diamond cut-off wheel and leave only the rear wheel on the machine, the wall chaser is then suited for cutting through materials (e.g. tiles).

Note: Use of the machine with a diamond cutting disc:

• To be able to attach the diamond cutting disc, you must remove the clamping flange from the spindle and remove from the guard.
• Now put the diamond cutting disc on the clamping flange, insert from below into the guard and put onto the spindle.
• Pay attention that the clamping flange, in relation to the spindle, cannot be turned. Put on spacer rings.
• Lock the spindle by pressing the spindle locking button and tighten the clamping nut with the two-hole wrench (clockwise direction).
• Carry out a test run: Set min. cutting depth.
• Position yourself and bystanders away from the plane of the rotating wheel and run the power tool at maximum no-load speed tor one minute.
• Damaged wheels will normally break apart during this test time. Stop immediately if significant vibrations occur or if other defects are noted.
• If such a situation occurs, check the machine to determine the cause.
• Setting cutting depth After undoing the clamping lever you can set the desired cutting depth using the scale. Retighten the clamping lever.

Note : If required, the position I the clamping force of the clamping lever must be changed. To do this, pull out the lever a bit, turn the lever and lower again.

Attaching the dust extraction

•  Never work without a dust extraction device . Dusts can be harmful to health!
•  Never work without a dust extraction device. The motor can quickly choke on stone dust.
• Use a suitable vacuum cleaner.
• Use only anti-static suction hoses.
• To extract the stone dust generated when working with the wall chaser, put the suction hose (4m) onto the extraction nozzle.

Switching on and off

•  Always guide the machine with both hands.
•  Switch on first, then guide the accessory towards the workpiece.
•  Avoid inadvertent starts: always switch the tool off when the plug is removed from the mains socket or if there has been a power cut.
•  In continuous operation, the machine continues running if it is forced out of your hands. Therefore, always hold the machine with both hands using the han-dles provided, stand securely and concentrate.
• Avoid the machine swirling up or taking in dust and chips. After switching off the machine, only place it down when the motor has come to a stand still.

Torque activation:

• Switching on: Slide the lock in the direction of the arrow and press the trigger switch.
• Switching off: Release the trigger switch.

Continuous operation:

Switching on: Slide the lock in the direction of the arrow, press the trigger switch and keep it pressed. The machine is now switched on. Now slide the lock in the direction of the arrow once more to lock the trigger switch (continuous operation). Switching off: Press the trigger switch and release.

Working With the Wall Chaser

• Always guide the machine with both hands on the handles.
• On the guard there are markings. The markings are in the extension of the rear diamond cutting disc and serve – when cutting grooves as cutting indicator.
• Place the wall chaser (with the motor switched on) with the support wheels on the surface into which a groove is to be cut, and slowly guide down until the set cutting depth has been reached.
• Then push the machine in cutting direction.
• Always push the machine in the stipulated direction through the material to be processed! See arrow on the guard.
• The wheel may bind, walk up or kickback if the power tool is restarted in the workpiece.
• Once the groove is complete, switch off the tool and hold it steady until the diamond cut-off wheel comes to a stop.
• Never attempt to remove the cutting disc from the cut while the wheel is in motion otherwise kickback may occur.
• Remove the machine from the cut. Put the machine down on its side.
• You can remove the remaining strip between the two chases with the chase extraction chisel provided.
• Grooves of greater depth cannot be cut into hard material (e.g. cement) in one movement.

Overload protection

Safety clutch

There is an automatic safety coupling built-in to the gears of the wall chaser. This protects the operator from the high torque that may, for example, occur if the diamond cut-off wheel is canted during work. The safety coupling protects and at the same time takes the strain off the motor and the gears of the machine. When the safety coupling engages, immediately switch the motor off (do not allow the coupling to drag!).

Electronic overload indicator
The electronic signal indicator is on. Load of the machine is too high! Reduce the feed pressure until the electronic signal indicator goes off.

Troubleshooting

The machine does not start. The electronic signal indicator flashes. The restart protection is active. If the mains plug is inserted with the machine switched on or if the power supply is restored following an interruption, the machine does not start up. Switch the machine off and back on again.

Repairs

Repairs to power tools must only be carried out by qualified electricians! A defective mains cable must be replaced only with a special, original mains cable from Bormann available from the Bormann service.

Environmental Protection

The generated grinding dust may contain harmful substances. Do not dispose with household trash; dispose of properly at a collection point for hazardous waste. Observe the national regulations on environmentally compatible disposal and on the recycling of disused tools, packaging and accessories.

Only for EU countries:

never dispose of A power tools in your household waste! According to European Directive 2012/19/EU on Waste from Electric and Electronic Equip-ment and implementation in national law, used power tools must be collected separately and recycled in an environmentally-friendly manner.

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