milwaukee C12 RT Compact Rotary Tool User Manual

milwaukee C12 RT Compact Rotary Tool

TECHNICAL DATA

• Battery voltage: 12 V
• Rated speed: 5000-37000 min-1
• Collet diameter:  0.8 / 1.6 / 2.4 / 3.2 mm
• ceramic or rubber bonded abrasive product: 25mm
• resinoid-bonded abrasive product: 25mm
• Weight according EPTA-Procedure 01/2003: 0.62 kg
• Sound pressure level (Uncertainty K = 3 dB(A)): 73 dB (A)
• Sound power level (Uncertainty K = 3 dB(A)): 84 dB (A)
• Drilling into metal: 2.4 m/s2
• Uncertainty K: 1.5 m/s2
• Sanding: 2.6 m/s2
• Uncertainty K: 1.5 m/s2
• Grinding metal: 3.1 m/s2
• Uncertainty K: 1.5 m/s2
• Grinding stone: 1.8 m/s2
• Uncertainty K: 1,5 m/s2
• Cutting of metal: 3.4 m/s2
• Uncertainty K: 1.5 m/s2

WARNING!

• The vibration emission 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 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: maintain the tool and the accessories, keep the hands warm, organisation of work patterns.
• 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.

SAFETY INSTRUCTIONS

• This power tool is intended to function as a grinder. Read all safety warnings, instructions, illustrations and specifications provided with this power tool. Failure to follow all instructions listed below may result in electric shock, fire and/or serious injury.
• Operations such as wire brushing, cut-off, sanding and polishing are not recommended to be performed with this power tool. Operations for which the power tool was not designed may create a hazard and cause personal injury.
• 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.
•  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.
• 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, sanding drum or any other accessory must properly fit the spindle or collet of the power tool. Accessories that do not match the mounting hardware of the power tool will run out of balance, vibrate excessively and may cause loss of control.
• Mandrel mounted wheels, sanding drums, cutters or other accessories must be fully inserted into the collet or chuck. The “overhang” or the length of the mandrel from the wheel to the collet must be minimal. If the mandrel is insufficiently held and/or the overhang of the wheel is too long, the mounted wheel may become loose and ejected at high velocity.
•  Do not use a damaged accessory. Before each use inspect the accessory such as abrasive wheels for chips and cracks, backing pad for cracks, tear or excess wear, wire brush for loose or cracked wires. If power tool or accessory is dropped, inspect for damage or install an undamaged accessory. After inspecting and installing an accessory, position yourself and bystanders away from the plane of the rotating accessory and run the power tool at maximum no-load speed for one minute. Damaged accessories 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 accessory may fly away and cause injury beyond
•  Hold power tool by insulated gripping surfaces, when performing an operation where the cutting accessory may contact hidden wiring. Cutting accessory contacting a “live” wire may make exposed metal parts of the power tool “live” and could give the operator an electric shock.
• Always hold the tool firmly in your hands during the start-up. The reaction torque of the motor, as it accelerates to full speed, can cause the tool to twist.
•  Use clamps to support workpiece whenever practical. Never hold a small workpiece in one hand and the tool in the other hand while in use. Clamping a small workpiece allows you to use both hands to control the tool. Round material such as dowel rods, pipes or tubing have a tendency to roll while being cut, and may cause the bit to bind or jump toward you.
•  Never lay the power tool down until the accessory has come to a complete stop. The spinning accessory may grab the surface and pull the power tool out of your control.
•  After changing the bits or making any adjustments, make sure the collet nut, chuck or any other adjustment devices are securely tightened. Loose adjustment devices can unexpectedly shift, causing loss of control, loose rotating components will be violently thrown.
•  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, backing pad, brush or any other accessory. Pinching or snagging causes rapid stalling of the rotating accessory which in turn causes the uncontrolled power tool to be forced in the direction opposite of the accessory’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.
• 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 or toothed saw blade. Such blades create frequent kickback and loss of control.
• Always feed the bit into the material in the same direction as the cutting edge is exiting from the material (which is the same direction as the chips are thrown). Feeding the tool in the wrong direction causes the cutting edge of the bit to climb out of the work and pull the tool in the direction of this feed.
• When using steel saws, cut-off wheels, high-speed cutters or tungsten carbide cutters, always have the work securely clamped. These wheels will grab if they become slightly canted in the groove, and can kickback. When a cut-off wheel grabs, the wheel itself usually breaks. When the steel saw, high-speed cutters or tungsten carbide cutter grab, it may jump from the groove and you could lose control of the tool.

Safety warnings specific for grinding

• Use only wheel types that are recommended for your power tool and only for recommended applications. For example: do not grind with the side of a cut-off wheel. Abrasive cut-off wheels are intended for peripheral grinding, side forces applied to these wheels may cause them to shatter.
• For threaded abrasive cones and plugs use only undamaged wheel mandrels with an unrelieved shoulder flange that are of correct size and length. Proper mandrels will reduce the possibility of breakage.
• Do not position your hand in line with and behind the rotating wheel. When the wheel, at the point of operation, is moving away from your hand, the possible kickback may propel the spinning wheel and the power tool directly at you.
• Support panels or any oversized workpiece to minimize the risk of wheel pinching and kickback. Large workpieces tend to sag under their own weight. Supports must be placed under the workpiece near the line of cut and near the edge of the workpiece on both sides of the wheel.
• Use extra caution when making a “pocket cut” into existing walls or other blind areas. The protruding wheel may cut gas or water pipes, electrical wiring or objects that can cause kickback.

ADDITIONAL SAFETY AND WORKING INSTRUCTIONS

Always wear goggles when using the machine. It is recommended to wear gloves, sturdy non-slipping shoes and apron. After switching off, the machine will not be idle immediately. (After-running of the work spindle.) Allow the machine to come to a stop before putting down. Never reach into the danger area of the machine when it is running. Only use tools whose permitted speed is at least as high as the highest no-load speed of the machine. Check grinding tools before use. The grinding tool must be properly mounted and turn freely. Perform a test run for at least 30 seconds without load. Do not use damaged, out of round or vibrating grinding tools. When grinding metal, flying sparks are produced. Take care that no persons are endangered. Because of the danger of fire, no combustible materials should be located in the vicinity (spark flight zone). Do not use dust extraction. Due care should be taken that no sparks or sanding dust flying from the workpiece come into contact with you. The adjusting nut must be tightened before starting to work with the machine. Under the effect of extreme electromagnetic interferences from the outside, temporary variations in the speed of rotation could arise in particular cases. Always use and store the grinding disks according to the manufacturer’s instructions. The workpiece must be fixed if it is not heavy enough to be steady. Never move the workpiece towards the rotating disk by hand. The size of the grinding tool must be suitable for the tool. For dusty operations, the machine’s ventilation slits must be kept clear. If necessary, switch off the power to the machine and remove the dust. Use a non-metallic object for this, taking care not to damage any of the inner parts. Battery acid may leak from damaged batteries under extreme load or extreme temperatures. In case of contact with battery acid wash it off immediately with soap and water. In case of eye contact rinse thoroughly for at least 10 minutes and immediately seek medical attention. Do not dispose of used battery packs in the household refuse or by burning them. Milwaukee Distributors offer to retrieve old batteries to protect our environment. Do not store the battery pack together with metal objects (short circuit risk). Use only System M 18 chargers for charging System M 18 battery packs. Do not use battery packs from other systems. No metal parts must be allowed to enter the battery section of the charger (short circuit risk). Never break open battery packs and chargers and store only in dry rooms. Keep dry at all times. Remove the battery pack before starting any work on the machine. Make sure that the grinding tool is installed in accordance with the manufacturer’s instructions.

SPECIFIED CONDITIONS OF USE

This tool may be used for grinding wood, metal, plastic, or similar materials, especially in hard accessible corners and places. Do not use this product in any other way as stated for normal use. Please refer to the instructions supplied by the accessory manufacturer. The machine is suitable only for working without water.

BATTERIES

Battery packs which have not been used for some time should be recharged before use. Temperatures in excess of 50°C (122°F) reduce the performance of the battery pack. Avoid extended exposure to heat or sunshine (risk of overheating). The contacts of chargers and battery packs must be kept clean. For an optimum life-time, the battery packs have to be fully charged, after used. To obtain the longest possible battery life remove the battery pack from the charger once it is fully charged. For battery pack storage longer than 30 days: Store the battery pack where the temperature is below 27°C and away from moisture Store the battery packs in a 30% – 50% charged condition Every six months of storage, charge the pack as normal.

BATTERY PACK PROTECTION

In extremely high torque, binding, stalling and short circuit situations that cause high current draw, the tool will stop for about 2 seconds and then the tool will turn OFF. To reset, release the trigger. Under extreme circumstances, the internal temperature of the battery could become to high. If this happens, the battery will shut down.

TRANSPORTING LITHIUM BATTERIES

Lithium-ion batteries are subject to the Dangerous Goods Legislation requirements. Transportation of those batteries has to be done in accordance with local, national and international provisions and regulations.

• The user can transport the batteries by road without further requirements.
• Commercial transport of Lithium-Ion batteries by third parties is subject to Dangerous Goods regulations. Transport preparation and transport are exclusively to be carried out by appropriately trained persons and the process has to be accompanied by corresponding experts.

When transporting batteries:

• Ensure that battery contact terminals are protected and insulated to prevent short circuit.
• Ensure that battery pack is secured against movement within packaging.
• Do not transport batteries that are cracked or leak.

Check with forwarding company for further advice

MAINTENANCE

The ventilation slots of the machine must be kept clear at all times. Do not let any metal parts reach the airing slots — danger of short circuit! Use only Milwaukee accessories and spare parts. Should components need to be replaced which have not been described, please contact one of our Milwaukee service agents. If needed, an exploded view of the tool can be ordered. Please state the serial no. as well as the machine type printed on the label and order the drawing at your local service agents.

SYMBOLS

• CAUTION! WARNING! DANGER!
• Remove the battery pack before starting any work on the machine.
• Please read the instructions carefully before starting the machine.
• Always wear goggles when using the machine.
• Wear gloves!
• Do not use force.

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