INSTRUCTION MANUAL DWE4557-XE, DWE4559-XE, DWE4597N-XE, DWE4599N-XE HEAVY-DUTY LARGE ANGLE GRINDERS DWE4557-XE Definitions: Safety Guidelines LPA (sound pressure) KPA (sound pressure uncertainty) LWA (sound power) KWA (sound pressure uncertainty) The definitions below describe the level of severity for each signal word. Please read the manual and pay attention to these symbols. DANGER: Indicates an imminently hazardous situation which, if not avoided, will result in death or serious injury. WARNING: Indicates a potentially hazardous situation which, if not avoided, could result in death or serious injury. CAUTION: Indicates a potentially hazardous situation which, if not avoided, may result in minor or moderate injury. NOTICE: Indicates a practice not related to personal injury which, if not avoided, may result in property damage. Technical Data DWE4557-XE DWE4559-XE DWE4597N-XE DWE4599N-XE 230 2400 6500 230 M14 5,69 230 2400 8500 180 M14 5,86 DWE4599N-XE 96 3 97 3 96 3 96 3 dB(A) dB(A) 107/108 3 108/108 3 107/107 3 107/105 3 Vibration total values (triax vector sum) determined according to EN 60745: Vibration emission value ah surface grinding m/s² 8,5 7,0 7,0 ah,AG = Uncertainty K = m/s² 1,5 1,5 1,5 Vibration emission value ah disc sanding ah,DS = m/s² 2,5/2,5 – – Uncertainty K = m/s² 1,5 – – IF YOU HAVE ANY QUESTIONS OR COMMENTS ABOUT THIS OR ANY DEWALT TOOL, CALL US AT: 1800 338 002 (Aust) or 0800 339 258 (NZ). Voltage V 230 Power input W 2400 No-load/rated speed min-1 8500 Wheel diameter mm 180 Spindle diameter M14 Weight kg 5,45 *weight includes side handle and guard DWE4559-XE DWE4597N-XE dB(A) dB(A) 4,5 1,5 – – The vibration emission level given in this information sheet has been measured in accordance with a standardised 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. WARNING: 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. 230 2400 6500 230 M14 6,24 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. 1 SAFETY INSTRUCTIONS FOR POWER TOOLS d) 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. e) 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. f) 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. 3) PERSONAL SAFETY a) 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. b) 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. c) Prevent unintentional starting. Ensure the switch is in the off position before connecting to power source and/or battery pack, picking up or carrying the tool. Carrying power tools with your finger on the switch or energising power tools that have the switch on invites accidents. d) 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. e) Do not overreach. Keep proper footing and balance at all times. This enables better control of the power tool in unexpected situations. f) Dress properly. Do not wear loose clothing or jewellery. Keep your hair, clothing and gloves away from moving parts. Loose clothes, jewellery or long hair can be caught in moving parts. g) 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. When using power tools, always observe the safety regulations applicable in your country to reduce the risk of fire, electric shock and personal injury. Read the following safety instructions before attempting to operate this product. Keep these instructions in a safe place. WARNING: To reduce the risk of injury, user must read the instruction manual. GENERAL POWER TOOL SAFETY WARNINGS WARNING! 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 The term “power tool” in the warnings refers to your mains-operated (corded) power tool or battery-operated (cordless) power tool. 1) WORK AREA SAFETY a) Keep work area clean and well lit. Cluttered or dark areas invite accidents. b) 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. c) Keep children and bystanders away while operating a power tool. Distractions can cause you to lose control. 2) ELECTRICAL SAFETY a) 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. b) 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. c) Do not expose power tools to rain or wet conditions. Water entering a power tool will increase the risk of electric shock. 2 • Young children and the infirm. This appliance is not intended for use by young children or infirm persons without supervision. – This appliance is not intended for use by persons (including children) with reduced physical, sensory or mental capabilities, or lack of experience and knowledge, unless they have been given supervision or instruction concerning use of the appliance by a person responsible for their safety. – Children should be supervised to ensure that they do not play with the appliance. • Replacement of the supply cord. If the supply cord or plug is damaged, it must be replaced by the manufacturer or an authorised DEWALT Service Centre in order to avoid a hazard. 4) POWER TOOL USE AND CARE a) 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. b) 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. c) 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. d) 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. e) 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. f) Keep cutting tools sharp and clean. Properly maintained cutting tools with sharp cutting edges are less likely to bind and are easier to control. g) 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. 5) SERVICE a) 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. Extension Cords CAUTION: Use only extension cords that are approved by the country’s Electrical Authority. Before using extension cords, inspect them for loose or exposed wires, damaged insulation and defective fittings. Replace the cord if necessary. Grinder Safety Warnings SAFETY INSTRUCTIONS FOR ALL OPERATIONS Safety Warnings Common for Grinding, Sanding, Wire Brushing, Polishing or Abrasive, Cutting-Off Operations a) This power tool is intended to function as a grinder, sander, wire brush, polisher or cut-off tool. 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. b) DWE4559-XE DWE4599N-XE is not recommended for polishing and sanding. Operations for which the power tool was not designed maycreate a hazard and cause personal injury. c) 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. d) 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. Electrical Safety The electric motor has been designed for one voltage range only. Always check that the power supply corresponds to the voltage on the rating plate. 220–240 V AC means your tool will operate on alternating current. Operation at a voltage outside this range can cause loss of power and can result in overheating. All DEWALT tools are factory tested; if this tool does not operate, check the power supply. Your DEWALT tool is double insulated, therefore no earth wire is required. 3 e) 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. f) The arbor size of wheels, flanges, backing pads or any other accessory must properly fit the spindle of the power tool. Accessories with arbor 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. g) 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. h) Wear personal protective equipment. Depending on application, use face shield, safety goggles or safety glasses. As appropriate, wear dust mask, hearing protectors, gloves and workshop 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. i) 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 immediate area of operation. j) Hold 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. k) 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. l) 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. m) 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. n) 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. o) Do not operate the power tool near flammable materials. Sparks could ignite these materials. p) Do not use accessories that require liquid coolants. Using water or other liquid coolants may result in electrocution or shock. Wheel Type Standard Wheel Dimensions (diameter × thickness × bore diameter) mm 115 × 6 × 22.3 Type 27 125 × 6 × 22.3 180 × 6 × 22.3 230 × 6 × 22.3 Type 11 Type 1 125 × 50 × 22.3 150 × 50 × 22.3 125 × 25 × 26 155 × 25 × 16 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. 4 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: a) 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 reaction or kickback forces, if proper precautions are taken. b) Never place your hand near the rotating accessory. Accessory may kickback over your hand. c) Do not position your body in the area where power tool will move if kickback occurs. Kickback will propel the tool in direction opposite to the wheel’s movement at the point of snagging. d) 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. e) Do not attach a saw chain woodcarving blade or toothed saw blade. Such blades create frequent kickback and loss of control. c) 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. d) Always use undamaged wheel flanges that are of correct size and shape for your selected wheel. Proper wheel flanges support the wheel thus reducing the possibility of wheel breakage. Flanges for cut-off wheels may be different from grinding wheel flanges. e) Do not use worn down wheels from larger power tools. Wheel intended for larger power tool is not suitable for the higher speed of a smaller tool and may burst. Additional Safety Warnings Specific for Abrasive Cutting-Off Operations a) Do not “jam” the cut-off wheel or apply excessive pressure. Do not attempt to make an excessive depth of cut. Overstressing 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. b) Do not position your body in line with and behind the rotating wheel. When the wheel, at the point of operation, is moving away from your body, the possible kickback may propel the spinning wheel and the power tool directly at you. c) 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 cut-off 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. d) Do not restart the cutting operation in the workpiece. Let the wheel reach full speed and carefully reenter the cut. The wheel may bind, walk up or kickback if the power tool is restarted in the workpiece. e) 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. Safety Warnings Specific for Grinding and Abrasive Cutting-Off Operations a) Use only wheel types that are recommended for your power tool and the specific guard designed for the selected wheel. Wheels for which the power tool was not designed cannot be adequately guarded and are unsafe. b) The guard must be securely attached to the power tool and positioned for maximum safety, so the least amount of wheel is exposed towards the operator. The guard helps to protect operator from broken wheel fragments, accidental contact with wheel, and sparks that could ignite clothing. 5 f) 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. • Never cut into area that may contain electrical wiring or piping. Serious injury may result. • Do not operate this tool for long periods of time. Vibration caused by the operating action of this tool may cause permanent injury to fingers, hands, and arms. Use gloves to provide extra cushion, take frequent rest periods, and limit daily time of use. • Direct the Dust Ejection System (DES) away from operator and coworkers. Serious injury may result. • When not in use, place grinder on a stable surface where it will not move inadvertantly, roll or cause a tripping or falling hazard. Serious personal injury may result. • Air vents often cover moving parts and should be avoided. Loose clothes, jewelry or long hair can be caught in moving parts. • An extension cord must have adequate wire size (AWG or American Wire Gauge) for safety. The smaller the gauge number of the wire, the greater the capacity of the cable, that is 16 gauge has more capacity than 18 gauge. An undersized cord will cause a drop in line voltage resulting in loss of power and overheating. When using more than one extension to make up the total length, be sure each individual extension contains at least the minimum wire size. The following table shows the correct size to use depending on cord length and nameplate ampere rating. If in doubt, use the next heavier gauge. The smaller the gauge number, the heavier the cord. • Air vents often cover moving parts and should be avoided. Loose clothes, jewellery or long hair can be caught in moving parts. WARNING: We recommend the use of a residual current device with a residual current rating of 30mA or less. WARNING: ALWAYS wear approved protective safety equipment complying with the following standards: • Eye protection: AS/NZS1337 Eye Protectors for Industrial Applications; • Hearing protection: AS/NZS1270 Acoustics – Hearing Protection; • Respiratory protection: AS/NZS1716 Respiratory Protective Devices. WARNING: Some dust created by power sanding, sawing, grinding, drilling, and Safety Warnings Specific for Sanding Operations a) Do not use excessively oversized sanding disc paper. Follow manufacturer's recommendations when selecting sanding paper. Larger sanding paper extending beyond the sanding pad presents a laceration hazard and may cause snagging, tearing of the disc or kickback. Safety Warnings Specific for Polishing Operations a) Do not allow any loose portion of the polishing bonnet or its attachment strings to spin freely. Tuck away or trim any loose attachment strings. Loose and spinning attachment strings can entangle your fingers or snag on the workpiece. Safety Warnings Specific for Wire Brushing Operations a) Be aware that wire bristles are thrown by the brush even during ordinary operation. Do not overstress the wires by applying excessive load to the brush. The wire bristles can easily penetrate light clothing and/or skin. b) If the use of a guard is recommended for wire brushing, do not allow any interference of the wire wheel or brush with the guard. Wire wheel or brush may expand in diameter due to work load and centrifugal forces. Additional Safety Rules for Grinders WARNING: The grinding wheel or accessory may loosen during coast-down of the tool when shut off. If grinding wheel or accessory loosens, it may dismount from the machine and may cause serious personal injury. • Use of accessories not specified in this manual is not recommended and may be hazardous. Use of power boosters that would cause the tool to be driven at speeds greater than its rated speed constitutes misuse. • Use clamps or another practical way to secure and support the workpiece to a stable platform. Holding the work by hand or against your body leaves it unstable and may lead to loss of control. • Avoid bouncing the wheel or giving it rough treatment. If this occurs, stop the tool and inspect the wheel for cracks or flaws. • Always handle and store wheels in a careful manner. 6 SAVE ALL WARNINGS AND INSTRUCTIONS FOR FUTURE REFERENCE other construction activities contains chemicals known to cause cancer, birth defects or other reproductive harm. Some examples of these chemicals are: • lead from lead-based paints, • crystalline silica from bricks and cement and other masonry products, and • arsenic and chromium from chemically-treated lumber. Your risk from these exposures varies, depending on how often you do this type of work. To reduce your exposure to these chemicals: work in a well ventilated area, and work with approved safety equipment, such as those dust masks that are specially designed to filter out microscopic particles. • Avoid prolonged contact with dust from power sanding, sawing, grinding, drilling, and other construction activities. Wear protective clothing and wash exposed areas with soap and water. Allowing dust to get into your mouth, eyes, or lay on the skin may promote absorption of harmful chemicals. WARNING: Use of this tool can generate and/or disburse dust, which may cause serious and permanent respiratory or other injury. Always use AS/NZS1716 approved respiratory protection appropriate for the dust exposure. Direct particles away from face and body. WARNING: Always wear proper personal hearing protection that conforms to AS/NZS1270 during use. Under some conditions and duration of use, noise from this product may contribute to hearing loss. • The label on your tool may include the following symbols. The symbols and their definitions are as follows: V ......................volts A .........................amperes Hz ....................hertz W ........................watts or AC ............alternating current min ..................minutes or DC.....direct current or AC/DC......alternating or ...................Class I Construction direct current (grounded) no .......................no load speed ...................Class II Construction n .........................rated speed .......................earthing terminal (double insulated) …/min .............per minute .......................safety alert symbol BPM .................beats per minute IPM .....................impacts per minute RPM.................revolutions per minute SPM ....................strokes per minute sfpm ................surface feet per minute COMPONENTS (FIG. 1) WARNING: Never modify the power tool or any part of it. Damage or personal injury could result. G. Side handle A. Trigger switch B. Lock-off button H. LED indicator C. Lock-on button I. Anti-vibration ring D. Spindle lock button J. Dust ejection port E. Spindle (Fig. 9) F. Guard FIG. 1 J H D G A C F I B 7 IINTENDED USE This grinder is designed for professional grinding, sanding, wire brushing, polishing or abrasive, cutting-off applications. DO NOT use under wet conditions or in presence of flammable liquids or gases. This grinder is a professional power tool. DO NOT let children come into contact with the tool. Supervision is required when inexperienced operators use this tool. ANTI-VIBRATION SIDE HANDLE The anti-vibration side handle reduces vibration and user fatigue in extended use applications. ANTI-VIBRATION REAR HANDLE (FIG. 1) The anti-vibration ring (I) reduces handle vibration and user fatigue in extended use applications. DUST EJECTION SYSTEM The dust ejection system deflects debris that would be harmful to the motor and allows cleaner air to pass over the motor. KEYLESS GUARD This allows for tool-free guard change and adjustment. E-SWITCH PROTECTION™ (DWE4597N-XE, DWE4599N-XE) The ON/OFF trigger switch has a no-volt release function. In the event of a power outage or other unexpected shut down, the trigger switch will need to be cycled (turned on and off) to restart tool. MECHANICAL CLUTCH (DWE4597N-XE, DWE4599N-XE) The torque limiting clutch reduces the maximum reaction torque transmitted to the operator in the case of jamming a cutting disc. This feature also prevents the gearing and electric motor from stalling. The torque limiting clutch has been factory set and cannot be adjusted. E-CLUTCH™ (DWE4597N-XE, DWE4599N-XE) This unit is equipped with an E-Clutch™ (Electronic Clutch), which in the event of a high-load or wheel pinch, the unit will be shut off to reduce the reaction torque to the user. The switch needs to be cycled (turned on and off) to restart tool. POWER-OFF™ OVERLOAD PROTECTION (DDWE4597N-XE, DWE4599N-XE) The power supply to the motor will be reduced in case of motor overload. With continued motor overload, the tool will shut off. The switch needs to be cycled (turned on and off) to restart tool. The tool will power off each time the current load reaches the overload current value (motor burn-up point). If continued overload shutdowns occur, apply less force/weight on the tool until the tool will function without the overload engaging. CONSTANT SPEED UNDER LOAD (DWE4597N-XE, DWE4599N-XE) The internal electronic speed control offers consistent wheel speed while using the tool. ELECTRONIC SOFT START (DWE4597N-XE, DWE4599N-XE) This feature limits the initial start up momentum, allowing the speed to build up gradually over a 1 second period. This feature also reduces the possibility of reduced breaker trips. ASSEMBLY AND ADJUSTMENTS WARNING: To reduce the risk of injury, turn unit off and disconnect it from power source before installing and removing accessories, before adjusting or when making repairs. An accidental start-up can cause injury. FIG. 2 Attaching Side Handle (Fig. 2) The side handle (G) can be fitted to either side or the top of the gear case in the threaded holes. The side positions are designed for optimized balance in surface finishing and grinding applications. The side handle must be used at all times to maintain proper control of the tool. Before using the tool, check that the handle is tightened securely. 8 Rotating the Gear Case (Fig. 4) Clamp nut Wheel wrench WARNING: Accessories must be rated for at least the speed recommended on the tool warning label. Wheels and other accessories running over their rated accessory speed may fly apart and cause injury. Threaded accessories must have a M14 hub. Every unthreaded accessory must have a 22.2 mm (7/8") arbor hole. If it does not, it may have been designed for a circular saw. Use only the accessories shown on pages 10–11 of this manual. Accessory ratings must always be above tool speed as shown on tool nameplate. FIG. 4 For applications in which a tool will be dedicated for uses in edge grinding and finishing work, the gear case may be rotated 90° left or right of its original position. 1. Remove the four corner screws attaching the gear case to motor housing. 2. Without separating the gear case from motor housing, rotate the gear case head to desired position. NOTE: If the gear case and motor housing become separated by more than 3.17 mm (1/8"), the tool must be serviced and re-assembled by a DEWALT service center. Failure to have the tool serviced may cause brush, motor and bearing failure. 3. Reinstall screws to attach the gear case to the motor housing. Tighten screws to 20 in.-lbs. torque. Overtightening could cause screws to strip. OPERATION WARNING: To reduce the risk of serious personal injury, turn tool off and disconnect tool from power source before making any adjustments or removing/ installing attachments or accessories. An accidental start-up can cause injury. Switch (Fig. 8) C CAUTION: Before connecting the tool to a power source FIG. 8 or after a power failure, depress and release the trigger switch (A) once without depressing the lock-on button (C) to ensure that the switch is in the off position. If the trigger switch is locked on, the tool will start unexpectedly when power is reconnected to the tool. Hold the side handle and rear handle firmly to maintain control of tool at start up B A and during use. TRIGGER OPERATION To turn the tool on, depress lock-off button (B) then trigger switch (A). The trigger can be feathered as long as the lock-off button is depressed. The tool will remain running while the trigger is depressed. Turn the tool off by releasing the trigger. TRIGGER OPERATION WITH LOCK-ON FEATURE To turn tool on, depress trigger. Depress and hold lock-on button (C) while releasing trigger. Lock-on button will remain depressed and tool will remain on. To turn the tool off, depress and release trigger. The lock-on button will pop out, permitting the trigger to disengage and causing the tool to turn off. NOTE: Allow the tool to reach full speed before touching tool to work surface. Lift the tool from the work surface before turning the tool off. Wheel Mounting Accessories and Attachments It is important to choose the correct guards, backing pads and flanges to use with grinder accessories. Refer to pages 10–11 for information on choosing the correct wheel mounting accessories. ATTACHMENTS Attachments designed specifically for this grinder can be purchased through DEWALT dealers and DEWALT Factory Service centers. 9" Type 27 guard 9" Type 28 guard 7" Type 27 guard 5"–6" Type 11 flaring cup guard with flange 4" Type 11 flaring cup guard with flange Type 11 flaring cup wheel backing flange Type 1 flange set 7" Type 1 guard Grinding backing flange 9 Grinding Wheels Type 27 guard Type 27 guard Type 28 guard backing flange backing flange Type 27 hubbed wheel Type 28 guard Sanding Discs rubber backing pad Wire Wheels Type 27 guard sanding disc wire cup brush Type 27 non-hubbed wheel Type 28 non-hubbed wheel clamp nut clamp nut Type 28 hubbed wheel clamp nut Type 27 guard wire wheel Alternative guards can be purchased at an additional cost. Please call 1 800 654 155 for more information. 10 Cutting Wheels Sanding Flap Discs Type 27 guard Type 27 guard Type 1 guard Type 1 guard OR OR Type 27 guard Type 27 guard backing flange backing flange abrasive cutting wheel diamond cutting wheel outer flange washer outer flange washer clamp nut clamp nut backing flange hubbed sanding flap disc non-hubbed sanding flap disc clamp nut Alternative guards can be purchased at an additional cost. Please call 1 800 654 155 for more information. 11 3. While depressing the spindle lock button, thread the clamp nut (R) on spindle, piloting the raised hub on clamp nut in the center of grinding wheel. 4. Tighten the clamp nut with a wrench. 5. Reverse the above procedure to remove the wheel. SURFACE GRINDING WITH GRINDING WHEELS (FIG. 11) 1. Allow the tool to reach full speed before touching the tool to the work surface. 2. Apply minimum pressure to the work surface, allowing the tool to operate at high speed. Grinding rate is greatest when the tool operates at high speed. 3. Maintain a 20° to 30° angle between the tool and work surface. FIG. 11 4. Continuously move the tool in a forward and back motion to avoid creating gouges in the work surface. 5. Remove the tool from work surface before turning tool off. Allow the wheel to stop 20˚–30˚ rotating before laying the tool down. EDGE GRINDING WITH GRINDING WHEELS (FIG. 12) FIG. 12 WARNING: Wheels used for cutting and edge grinding may break or kickback if they bend or twist while the tool is being used to do cut-off work or deep grinding. To reduce the risk of serious injury, limit the use of these wheels with a standard Type 27 guard to shallow cutting and notching (less than 13 mm [1/2"] in depth). The open side of the guard must be positioned away from the operator. For deeper cutting with a Type 1 cut-off wheel, use a closed Type 1 guard. Refer to pages 10–11 for more information. 1. Allow the tool to reach full speed before touching the tool to the work surface. 2. Apply minimum pressure to the work surface, allowing the tool to operate at high speed. Grinding rate is greatest when the tool operates at high speed. CAUTION: Make sure the wheel has come to a complete stop before setting the tool down. FIG. 9 SPINDLE LOCK BUTTON (FIG. 9) D The spindle lock button (D) is provided to prevent the spindle from rotating when installing or removing wheels. NOTICE: To reduce the risk of damage to the tool, do not engage the spindle lock button while the tool is operating. Damage to the tool will result and attached accessory may spin off possibly resulting in injury. To engage the lock, depress the spindle lock button (D) and rotate the spindle until you are unable to rotate the spindle further. Mounting and Using Depressed Center Grinding Wheels and Sanding Flap Discs MOUNTING AND REMOVING HUBBED WHEELS Hubbed wheels install directly on the M14 x 2 threaded FIG. 10 spindle. 1. Thread the wheel on the spindle by hand, seating the wheel against the spindle shoulder. 2. Depress the spindle lock button and use a wrench to Q tighten the hub of the wheel. E 3. Reverse the above procedure to remove the wheel. CAUTION: Failure to properly seat the wheel against the spindle shoulder before turning the tool on may result in damage to the tool or the wheel. MOUNTING NON-HUBBED WHEELS Depressed center, Type 27 grinding wheels must be used R with available accessory flanges. See the chart on pages 10–11 of this manual for more information. 1. Install the metal backing flange (Q) on spindle (E) against the spindle shoulder. 2. Place wheel against the backing flange, centering the wheel on the backing flange pilot. 12 3. Position yourself so that the open-underside of the wheel is facing away from you. 4. Once a cut is begun and a notch is established in the workpiece, do not change the angle of the cut. Changing the angle will cause the wheel to bend and may cause wheel breakage. Edge grinding wheels are not designed to withstand side pressures caused by bending. 5. Remove the tool from the work surface before turning the tool off. Allow the wheel to stop rotating before laying the tool down. WARNING: Do not use edge grinding/cutting wheels for surface grinding applications because these wheels are not designed for side pressures encountered with surface grinding. Wheel breakage and serious personal injury may result. SURFACE FINISHING WITH SANDING FLAP DISCS (FIG. 13) 1. Allow the tool to reach full speed before touching FIG. 13 the tool to the work surface. 2. Apply minimum pressure to work surface, allowing the tool to operate at high speed. Sanding rate is greatest when the tool operates at high speed. 5˚–10˚ 3. Maintain a 5° to 10° angle between the tool and work surface. 4. Continuously move the tool in a forward and back motion to avoid creating gouges in the work surface. 5. Remove the tool from work surface before turning tool off. Allow the wheel to stop rotating before laying the tool down. MOUNTING SANDING BACKING PADS (FIG. 14) NOTE: Guard may be removed when using sanding backing pads. WARNING: Proper guard must be reinstalled for grinding wheel, cutting wheel, sanding flap disc, wire brush or wire wheel applications after sanding applications are complete. FIG. 14 1. Place or appropriately thread backing pad (S) on the T spindle. R 2. Place the sanding disc (T) on the backing pad (S). 3. While depressing the spindle lock button, thread clamp nut (R) on spindle, piloting the raised hub on the clamp nut into the center of sanding disc and backing pad. 4. Tighten the clamp nut by hand. Then depress the spindle lock button while turning the sanding disc until the sanding disc and clamp nut are snug. S 5. To remove the wheel, grasp and turn the backing pad and sanding disc while depressing the spindle lock button. USING SANDING BACKING PADS (FIG. 15) Choose the proper grit sanding discs for your application. Sanding discs are available in various grits. Coarse grits yield faster material removal rates and a rougher finish. Finer grits yield slower material removal and a smoother finish. Begin with coarse grit discs for fast, rough material removal. Move to a medium grit paper and finish with a fine grit disc for optimal finish. Coarse 16–30 grit Medium 36–80 grit Fine Finishing 100–120 grit Very Fine Finishing 150–180 grit 1. Allow the tool to reach full speed before touching tool to the work surface. 2. Apply minimum pressure to work surface, allowing the tool to operate at high speed. Sanding rate is greatest when the tool operates at high speed. 3. Maintain a 5° to 15° angle between the tool and work surface. The sanding disc should contact approximately 1" (25.4 mm) of work surface. 13 4. Move the tool constantly in a straight line to FIG. 15 prevent burning and swirling of work surface. Allowing the tool to rest on the work surface without moving, or moving 5˚–15˚ the tool in a circular motion causes burning and swirling marks on the work surface. 5. Remove the tool from work surface before turning tool off. Allow the wheel to stop rotating before laying the tool down. 3. Sanding should be done in a manner to reduce tracking of paint dust outside the work area. CLEANING AND DISPOSAL 1. All surfaces in the work area should be vacuumed and thoroughly cleaned daily for the duration of the sanding project. Vacuum filter bags should be changed frequently. 2. Plastic drop cloths should be gathered up and disposed of along with any dust chips or other removal debris. They should be placed in sealed refuse receptacles and disposed of through regular trash pick-up procedures. During clean up, children and pregnant women should be kept away from the immediate work area. 3. All toys, washable furniture and utensils used by children should be washed thoroughly before being used again. Precautions To Take When Sanding Paint 1. Sanding of lead based paint is NOT RECOMMENDED due to the difficulty of controlling the contaminated dust. The greatest danger of lead poisoning is to children and pregnant women. 2. Since it is difficult to identify whether or not a paint contains lead without a chemical analysis, we recommend the following precautions when sanding any paint: PERSONAL SAFETY 1. No children or pregnant women should enter the work area where the paint sanding is being done until all clean up is completed. 2. A dust mask or respirator should be worn by all persons entering the work area. The filter should be replaced daily or whenever the wearer has difficulty breathing. NOTE: Only those dust masks suitable for working with lead paint dust and fumes should be used. Ordinary painting masks do not offer this protection. See your local hardware dealer for the proper AS/NZS1716 approved mask. 3. NO EATING, DRINKING or SMOKING should be done in the work area to prevent ingesting contaminated paint particles. Workers should wash and clean up BEFORE eating, drinking or smoking. Articles of food, drink, or smoking should not be left in the work area where dust would settle on them. ENVIRONMENTAL SAFETY 1. Paint should be removed in such a manner as to minimize the amount of dust generated. 2. Areas where paint removal is occurring should be sealed with plastic sheeting of 4 mils thickness. Mounting and Using Wire Brushes and Wire Wheels Wire cup brushes or wire wheels screw directly on the grinder spindle without the use of flanges. Use only wire brushes or wheels provided with a M14 threaded hub. A Type 27 guard is required when using wire brushes and wheels. CAUTION: To reduce the risk of personal injury, wear work gloves when handling wire brushes and wheels. They can become sharp. CAUTION: To reduce the risk of damage to the tool, wheel or brush must not touch guard when mounted or while in use. Undetectable damage could occur to the accessory, causing wires to fragment from accessory wheel or cup. MOUNTING WIRE CUP BRUSHES AND WIRE WHEELS 1. Thread the wheel on the spindle by hand. 2. Depress spindle lock button and use a wrench on the hub of the wire wheel or brush to tighten the wheel. 3. To remove the wheel, reverse the above procedure. NOTICE: To reduce the risk of damage to the tool, properly seat the wheel hub before turning the tool on. 14 MOUNTING TYPE 27 OR TYPE 1 GUARD 1. Open the guard latch (M), and align the lugs (N) on the guard with the slots on the hub (O). This will align the lugs with slots on the gear case cover. Position the guard facing backward. 2. Push the guard down until the guard lug engages and rotates freely in the groove on the gear case hub. 3. Rotate guard (F) into desired working position. The guard body should be positioned between the spindle and the operator to provide maximum operator protection. 4. Close the guard latch to secure the guard on the gear case cover. You should be unable to rotate the guard by hand when the latch is in closed position. Do not operate grinder with a loose guard or with the guard latch in open position. 5. To remove the guard, follow the procedure above in reverse order. NOTE: The guard is pre-adjusted to the diameter of the gear case hub at the factory. If, after a period of time, the guard becomes loose, tighten the adjusting screw (P) with the guard latch in the closed position with guard installed on the tool. NOTICE: To reduce the risk of damage to the tool, do not tighten adjusting screw with guard latch in open position. Undetectable damage to guard or mounting hub may result. USING WIRE CUP BRUSHES AND WIRE WHEELS (FIG. 16) Wire wheels and brushes can be used for removing rust, scale and paint, and for smoothing irregular surfaces. NOTE: The same precautions should be taken when wire brushing paint as when sanding paint (refer to Precautions To Take When Sanding Paint). 1. Allow the tool to reach full speed before touching FIG. 16 the tool to the work surface. 2. Apply minimum pressure to work surface, allowing the tool to operate at high speed. Material removal rate is greatest when the tool 5˚–10˚ operates at high speed. 3. Maintain a 5° to 10° angle between the tool and work surface for wire cup brushes. 4. Maintain contact between the edge of the wheel and the work surface with wire wheels. 5. Continuously move the tool in a forward and back motion to avoid creating gouges in the work surface. Allowing the tool to rest on the work surface without moving, or moving the tool in a circular motion causes burning and swirling marks on the work surface. 6. Remove the tool from the work surface before turning the tool off. Allow the tool to stop rotating before setting it down. CAUTION: Use extra care when working over an edge, as a sudden sharp movement of grinder may be experienced. Mounting and Using Cutting Disc Cutting wheels include diamond wheels and abrasive discs. Abrasive cutting wheels for metal and concrete use are available. Diamond blades for concrete cutting can also be used. WARNING: A Type 27 cutting wheel guard is included with this tool and is required when using cutting wheels. Failure to use proper flange and guard can result in injury resulting from wheel breakage and wheel contact. See pages 10–11 for more information. 15 FIG. 20 N M O F FIG. 21 P MOUNTING CUTTING WHEELS (FIG. 22) CAUTION: Matching diameter threaded backing flange, outer flange and clamp nut must be used for cutting wheels. 1. Install wheel backing flange (R), aligning flats on spindle (Q). 3. Place the wheel on the backing flange, centering the wheel (S) on the backing flange pilot. 4. Install the outer flange (T) and clamp nut (U), ensuring that the wheel remains centered on the backing flange. 5. Depress the spindle lock button (D) and tighten clamp nut with wrench. 6. Reverse the above procedure to remove the wheel. 2. Apply minimum pressure to work surface, allowing tool to operate at high speed. Cutting rate is greatest when the tool operates at high speed. 3. Once a cut is begun and a notch is established in the workpiece, do not change the angle of the cut. Changing the angle will cause the wheel to bend and may cause wheel breakage. 4. Remove the tool from work surface before turning tool off. Allow the wheel to stop rotating before laying the tool down. FIG. 23 MAINTENANCE FIG. 22 WARNING: To reduce the risk of serious personal injury, turn tool off and disconnect tool from power source before making any adjustments or removing/ installing attachments or accessories. An accidental start-up can cause injury. U T Lubrication S Your power tool requires no additional lubrication. R Cleaning Q WARNING: Blow dirt and dust out of all air vents with clean, dry air at least once a week. To minimize the risk of eye injury, always wear AS/NZS1337 approved eye protection when performing this. WARNING: Never use solvents or other harsh chemicals for cleaning the non-metallic parts of the tool. These chemicals may weaken the plastic materials used in these parts. Use a cloth dampened only with water and mild soap. Never let any liquid get inside the tool; never immerse any part of the tool into a liquid. USING CUTTING WHEELS WARNING: Do not use edge grinding/cutting wheels for surface grinding applications because these wheels are not designed for side pressures encountered with surface grinding. Wheel breakage and injury may result. 1. Allow tool to reach full speed before touching tool to work surface. Repairs To assure product SAFETY and RELIABILITY, repairs, maintenance and adjustment (including brush inspection and replacement) should be performed by certified service centers or other qualified service organizations, always using identical replacement parts. 16 Accessories BAIL HANDLE This accessory provides a wider range of holding positions when grinding and is particularly useful when surface grinding concrete. ANTI-VIBRATION SIDE HANDLE The anti-vibration side handle reduces vibration and user fatigue in extended use applications. WARNING: Since accessories, other than those offered by DEWALT, have not been tested with this product, use of such accessories with this tool could be hazardous. To reduce the risk of injury, only DEWALT recommended accessories should be used with this product. Recommended accessories for use with your tool are available at extra cost from your local service center. If you need any assistance in locating any accessory, please contact Stanley Black & Decker, 82 Taryn Drive, Epping, VIC 3076 Australia or call 1800 338 002 or (NZ) 0800 339 258. 17 Stanley Black & Decker 82 Taryn Drive, Epping, VIC 3076 Australia • 1800 338 002 (Aust) or 0800 339 258 (NZ) www.dewalt.com.au • www.dewalt.co.nz (MAR13) Part No. N175365 DWE4557-XE, DWE4559-XE, DWE4597N-XE, DWE4599N-XE Copyright © 2013 DEWALT The following are trademarks for one or more DEWALT power tools: the yellow and black color scheme; the “D” shaped air intake grill; the array of pyramids on the handgrip; the kit box configuration; and the array of lozenge-shaped humps on the surface of the tool.