milwaukee DG 7 E Low Speed Die Grinder Instruction Manual

Milwaukee DG 7 E Low-Speed Die Grinder

Product Information

The product is a Die Grinder with the model number DG 7 E.

Technical Data

• Production code: 3912 01 05… …000001-999999
• Noise information:
  • Sound pressure level (Uncertainty K=3dB(A)): 85 dB (A)
  • Sound power level (Uncertainty K=3dB(A)): 96 dB (A)
  • Wear ear protectors!
• Vibration information:
  • Surface grinding:
  • Vibration value: <2.5 m/s2
  • Vibration value (Uncertainty K=1.5 m/s2

Product Usage Instructions

Before using the product, read all safety warnings, instructions, illustrations, and specifications provided with the power tool. Failure to follow the instructions may result in electric shock, fire, and/or serious injury. Save all warnings and instructions for future reference.

Operating description and functional description

TECHNICAL DATA

• Production code: 3912 01 05
  : 000001-999999

• Rated input: 600 W

• Output: 315 W

• Rated speed: 3000-7000 min-1

• Chuck neck diameter: 45 mm

• Collet diameter: 6/8 mm

• Weight according to EPTA-Procedure 01/2014: 1,1 kg

Noise information

• Measured values determined according to EN 60 745
• Typically, the A-weighted noise levels of the tool are:
• Sound pressure level (Uncertainty K=3dB(A)) ……………………85 dB (A)
• Sound power level (Uncertainty K=3dB(A)) ………………………..96 dB (A)
  Wear ear protectors!

Vibration information

Vibration total values (triaxial vector sum) determined according to EN 60745

Surface grinding

• Vibration emission value ah. ……………………………………………………………….< 2,5 m/s2
• U ncertainty 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 diff erent applications, with diff erent accessories or poorly maintained, the vibration emission may diff er. 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 eff ects of vibration such as: maintain the tool and the accessories, keep the hands warm, organisation of work patterns.

WARNING 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, fi re and/or serious injury.
Save all warnings and instructions for future reference.

SAFETY INSTRUCTIONS

Safety Warnings Common for Grinding

• 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 that are not specifi cally 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 fl y 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 arbor 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 the 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 fl ying 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 the work area. Anyone entering the work area must wear personal protective equipment.
  Fragments of workpieces or of a broken accessory may fl y away and cause injury beyond the 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.

• 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 the 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.

• Position the cord clear of the spinning accessory. If you lose control, the cord may be cut or snagged and your hand or arm may be pulled into the spinning accessory.

• 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 the 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 fi rm 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 kick back. 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 the correct size and length. Proper mandrels will reduce the possibility of breakage.
• d) 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 an apron.
• Always disconnect the plug from the socket before carrying out any work on the machine.
• Only plug in when the machine is switched off .
• Keep the mains lead clear from the working range of the machine. Always lead the cable away behind you.
• 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 it down.
• Never reach into the dangerous 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, fl ying sparks are produced. Take care that no persons are endangered. Because of the danger of fi re, no combustible materials should be located in the vicinity (spark fl ight zone). Do not use dust extraction.
• Due care should be taken that no sparks or sanding dust fl ying from the workpiece come into contact with you.
• The adjusting nut must be tightened before starting to work with the machine.
• Under the eff ect 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.
• Make sure that the grinding tool is installed in accordance with the manufacturer’s instructions.
• The size of the grinding tool must be suitable for the grinder.
• 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.

SPECIFIED CONDITIONS OF USE

• This Straight grinder 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.

EC-DECLARATION OF CONFORMITY

We declare under our sole responsibility that the product described under “Technical Data” fulfi lls all the relevant provisions of the directives 2011/65/EU (RoHS), 2014/30/EU, 2006/42/EC, and the following harmonized standards have been used:
EN 60745-1:2009+A11:2010
EN 60745-2-23:2013
EN 55014-1:2017+A11:2020
EN 55014-2:2015
EN 61000-3-2:2014 EN 61000-3-3:2013 EN IEC 63000:2018
Winnenden, 2020-11-05

GB-DECLARATION OF CONFORMITY

We declare as the manufacturer under our sole responsibility that the product described under “Technical Data” fulfi lls all the relevant provisions of the following Regulations S.I. 2008/1597 (as amended), S.I. 2016/1091 (as amended), S.I. 2012/3032 (as amended) and that the following designated standards have been used:
BS EN 60745-1:2009+A11:2010
BS EN 60745-2-23:2013
BS EN 55014-1:2017+A11:2020
BS EN 55014-2:2015
BS EN 61000-3-2:2014
BS EN 61000-3-3:2013
BS EN IEC 63000:2018
Winnenden, 2020-11-05

MAINS CONNECTION

Connect only to single-phase AC current and only to the system voltage indicated on the rating plate. It is also possible to connect to sockets without an earthing contact as the design conforms to safety class II.
Appliances used at many different locations including wet room and open-air must be connected via a residual current device (FI, RCD, PRCD) of 30mA or less.

MAINTENANCE

The ventilation slots of the machine must be kept clear at all times.
Do not let any metal parts reach the airing slots – the 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 (see our list of guarantee/service addresses).
If needed, an exploded view of the tool can be ordered. Please state the Article No. as well as the machine type printed on the label and order the drawing at your local service agents or directly at: Techtronic Industries GmbH, Max-Eyth-Straße 10, 71364 Winnenden, Germany.

SYMBOLS

• CAUTION! WARNING! DANGER!
• Always disconnect the plug from the socket before carrying out 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.
• Do not dispose of electric tools together with household waste material.
• Electric tools and electronic equipment that have reached the end of their life must be collected separately and returned to an environmentally compatible recycling facility. Check with your local authority or retailer for recycling advice and collection point.
• Class II tool, a tool in which protection against electric shock does not rely on basic insulation only, but in which additional safety precautions, such as double insulation or reinforced insulation, are provided.
• There is no provision for protective earthing or reliance upon installation conditions.
• European Conformity Mark
• British Conformity Mark
• Ukraine Conformity Mark
• Eurasian Conformity Mark

References

• Milwaukee Tool Europe | Cordless Power Tools, Outdoor Tools, Hand Tools, PPE, Work wear. Storage and Accessories. | Milwaukee Tools Europe

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