DEWALT DWE4517W 7-in 15 Amps Trigger Switch Corded Angle Grinder Use and Care Guide
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DeWalt DWE4517W is a heavy-duty large angle grinder designed for grinding, sanding, wire brushing, polishing, and cutting-off operations. It features a powerful 13-amp motor that delivers 11,000 RPM for fast and efficient material removal. The grinder has a spindle lock for easy wheel changes and a two-position side handle for added control and comfort. The DWE4517W is also equipped with a tool-free adjustable guard for added safety. With its versatility and durability, the DeWalt DWE4517W is an ideal tool for a wide range of metalworking and construction applications.
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INSTRUCTIVO DE OPERACIÓN, CENTROS DE SERVICIO Y PÓLIZA DE GARANTÍA. ADVERTENCIA: LÉASE ESTE INSTRUCTIVO ANTES DE USAR EL PRODUCTO. DWE4517, DWE4519 Heavy-Duty Large Angle Grinders Grandes rectifieuses coudées de service intensif Esmeriladoras de ángulo grande para trabajo pesado INSTRUCTION MANUAL GUIDE D’UTILISATION MANUAL DE INSTRUCCIONES 1-800-4-DEWALT • www.dewalt.com If you have questions or comments, contact us. Pour toute question ou tout commentaire, nous contacter. Si tiene dudas o comentarios, contáctenos. The term "power tool" in the warnings refers to your mains-operated (corded) power tool or battery-operated (cordless) power tool. SAVE ALL WARNINGS AND INSTRUCTIONS FOR FUTURE REFERENCE 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. General Power Tool Safety Warnings WARNING: To reduce the risk of injury, read the instruction manual. IF YOU HAVE ANY QUESTIONS OR COMMENTS ABOUT THIS OR ANY DEWALT TOOL, CALL US TOLL FREE AT: 1-800-4-DEWALT (1-800-433-9258). 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. Definitions: Safety Guidelines 1 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. 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 ground fault circuit interrupter (GFCI) protected supply. Use of a GFCI reduces the risk of electric shock. 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. English English 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, nonskid 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 energizing 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 jewelry. Keep your hair, clothing and gloves away from moving parts. Loose clothes, jewelry 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. 2 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. 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) 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. c) 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. d) 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. e) 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 SAFETY INSTRUCTIONS FOR ALL OPERATIONS Safety Warnings Common for Grinding, Sanding, Wire Brushing, Polishing or Abrasive, Cutting-Off Operations 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. 3 i) h) g) f) match the mounting hardware of the power tool will run out of balance, vibrate excessively and may cause loss of control. 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 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. 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. 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 shock the operator. English English 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 Kickback and Related Warnings j) 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. k) 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. l) 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. m) 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. n) Do not operate the power tool near flammable materials. Sparks could ignite these materials. o) Do not use accessories that require liquid coolants. Using water or other liquid coolants may result in electrocution or shock. p) Always use side handle. Tighten the handle securely. The side handle should always be used to maintain control of the tool at all times. 4 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. Safety Warnings Specific for Grinding and Abrasive Cutting-Off Operations movement at the point of pinching. Abrasive wheels may also break under these conditions. Kickback is the result of 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. 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 Additional Safety Warnings Specific for Abrasive Cutting-Off Operations 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 and accidental contact with wheel. 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. 5 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 Polishing Operations a) Do not use excessively oversized sanding disc paper. Follow manufacturers 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 Sanding Operations 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. 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. English English 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. • 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. Additional Safety Rules for Grinders 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 and centrifugal forces. Safety Warnings Specific for Wire Brushing Operations 6 WARNING: ALWAYS use safety glasses. Everyday eyeglasses are NOT safety glasses. Also use face or dust mask if cutting operation is dusty. ALWAYS WEAR CERTIFIED SAFETY EQUIPMENT: • ANSI Z87.1 eye protection (CAN/CSA Z94.3), Minimum Gauge for Cord Sets Total Length of Cord Volts in Feet (meters) Ampere Rating 120V 25 (7.6) 50 (15.2) 100 (30.5) 150 (45.7) 240V 50 (15.2) 100 (30.5) 200 (61.0) 300 (91.4) More Not More AWG Than Than 0 6 18 16 16 14 6 10 18 16 14 12 10 12 16 16 14 12 12 16 14 12 Not Recommended • Air vents often cover moving parts and should be avoided. Loose clothes, jewelry or long hair can be caught in moving parts. • 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. • 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. • ANSI S12.6 (S3.19) hearing protection, • NIOSH/OSHA/MSHA respiratory protection. WARNING: Some dust created by power sanding, sawing, grinding, drilling, and other construction activities contains chemicals known to the State of California 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 disperse dust, which may cause serious and permanent respiratory or other injury. Always use NIOSH/OSHA 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 ANSI S12.6 (S3.19) 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: 7 A .............amperes W ............watts ......... alternating current ......... alternating or direct current no .......... no load speed n ............ rated speed .......... earthing terminal ........... safety alert symbol BPM ...... beats per minute RPM ...... revolutions per minute DWE4517 DWE4519 7" Angle Grinder 9" Angle Grinder double insulated double insulated 8,500 rpm 6,500 rpm Large Angle Grinders and Large Angle Sanders are designed for heavy material removal in extended use applications. The following grinders and sanders are described in this manual: FAMILIARIZATION Be sure your power supply agrees with the nameplate marking. Voltage decrease of more than 10% will cause loss of power and overheating. DEWALT tools are factory tested; if this tool does not operate, check power supply. Motor SAVE THESE INSTRUCTIONS FOR FUTURE USE V ............ volts Hz .......... hertz min ........ minutes ..... direct current .......... Class I Construction (grounded) .......... Class II Construction (double insulated) …/min ... per minute IPM ........ impacts per minute SPM ...... strokes per minute sfpm ...... surface feet per minute English English F G H C A E D INTENDED 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. WARNING: Never modify the power tool or any part of it. Damage or personal injury could result. A. Trigger switch E. Soft mount B. Spindle lock button F. Trigger lock off button C. Side handle G. Wheel guard D. Spindle H. Lock-on button COMPONENTS (FIG. 1) B FIG. 1 8 It is important to choose the correct guards, backing pads and flanges to use with grinder accessories. See the chart on pages 11–13 for information on choosing the correct accessories. WARNING: Accessories must be rated for at least the speed recommended on the tool warning label. Wheels and other Accessories and Attachments SOFT MOUNT The grinder is equipped with a soft mount, enabling easy wheel installation and removal. SPINDLE LOCK (FIG. 2) B The spindle lock pin is provided to prevent the FIG. 2 spindle from rotating when installing or removing wheels. Operate the spindle lock pin only when the tool is turned off and unplugged from the power source. To engage the lock, depress the spindle lock button (B) and rotate the spindle until you are unable to rotate it further. CAUTION: Never depress the spindle lock button while the grinder is running. Never turn on the grinder while the spindle lock button is depressed. Damage to your tool or personal injury may result. ROTATING GEAR CASE 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. See page 9 for instructions on rotating the gear case. SWITCH (FIG. 1) This tool is controlled by a trigger switch (A). A lock-on button (H) provides increased comfort in extended use applications. Features 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. ASSEMBLY AND ADJUSTMENTS ATTACHMENTS Attachments designed specifically for this grinder can be purchased through DEWALT dealers and DEWALT Factory Service centers. 9" Type 27 guard D284939 9" Type 28 guard D284938 7" Type 27 guard D284937 6" Type 11 Flaring cup guard with flange D284936 4" Type 11 Flaring cup guard with flange D284934 Type 11 Flaring cup wheel backing flange 608368-00 Type 1 Flange set D284932 7" Type 1 Guard D284931 Grinding backing flange 54339-00 Clamp nut 22191-00 Wheel Wrench 61820-01 Soft mount spindle protector 445928-01 accessories running over rated speed can fly apart and cause injury. Accessory ratings must always be above tool speed as shown on tool nameplate. 9 FIG. 3 H C 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. OPERATION 1. Remove guard and flanges from FIG. 4 tool. 2. Remove the four corner screws attaching the gear case to motor housing. 3. Separate the gear case from motor housing, not more than 1/4" (6.35 mm), rotate the gear case head to desired position. NOTE: If the gear case and motor housing become separated by more than 1/4" (6.35 mm), 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. 4. Re-install screws to attach the gear case to the motor housing. Tighten screws to 20 in./lbs. torque. Overtightening could cause screws to strip. Rotating the Gear Case (Fig. 4) Attach the side handle (C) to one of the two side handle ports (H). Attaching the Side Handle (Fig. 3) English English REMOVAL OF LOCK-ON FEATURE (FIG. 1) The lock-on button (H) can be permanently removed without compromising compliance with regulatory agencies shown on the tool’s nameplate. Removal of the lock pin must be done by a DEWALT Service Center. TRIGGER OPERATION WITH LOCK-ON FEATURE To turn the tool on, depress lock off FIG. 5 F button (F) and then depress the trigger switch (A). The lock-on button (H) will remain depressed and tool will remain on. To turn the tool off, depress and release A trigger. The lock pin button will pop out, permitting the trigger to disengage and H 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. CAUTION: Make sure the wheel has come to a complete stop before setting the tool down. WARNING: Ensure that the trigger switch is in the off position before connecting the tool to a power source or after a power failure. Hold the side handle and rear handle firmly to maintain control of tool at start up and during use. Switch (Fig. 5) Plug the large angle grinder into a dedicated electrical circuit. Operating this tool on a circuit with other tools will decrease tool performance. Power Source 10 MOUNTING AND REMOVING GUARD (FIG. 7) 1. Open the guard latch (I), and align the lugs with slots on the gear case cover. Position the guard facing backward, as shown. 2. Push the guard down until the guard lugs engage and rotate freely in the groove on the gear case hub. IMPORTANT INFORMATION ABOUT GUARDS (FIG. 6) Guards must be used with all grinding FIG. 6 wheels, sanding flap discs, wire brushes GRINDING and wire wheels. The tool may be used WHEEL without a guard only when sanding with SURFACE conventional sanding discs. DEWALT models DWE4517 and DWE4519 are provided with a guard intended for use with depressed center wheels (Type 27), and hubbed grinding wheels (Type 27). The GUARD LIP same guard is designed for use with sanding flap discs, wire brushes and wire wheels. Grinding and cutting with wheels other than Type 27, 28 and 29 require different accessory guards not included with the tool. Mounting instructions for these accessory guards are included in the accessory package. WARNING: When using a grinding wheel with a Type 27, 28, or 29 guard, be sure that the bottom surface of the grinding wheel is inside the guard lip. Mounting and Using Depressed Center Grinding Wheels and Sanding Flap Discs FIG. 7 I J Hubbed wheels install directly on the 5/8"–11 threaded spindle. 1. Thread the wheel on the spindle by hand, seating the wheel against the soft mount. 2. Depress the spindle lock button and use a wrench to tighten the hub of the wheel. 3. Reverse the above procedure to remove the wheel. Mounting and Removing Hubbed Wheels 3. With the guard latch open, rotate the guard into the desired working position that provides maximum protection to the user as shown. 4. Close the guard latch to secure the guard on the gear case. You should be unable to rotate the guard by hand when the latch is closed. Do not operate the grinder with a loose guard or 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 (J) with clamp in the closed position. NOTICE: Do not tighten the adjusting screw with the guard latch in open position. Undetectable damage to the guard or the mounting hub may result. 11 NOTE: Wheel size must match guard size; i.e., a new 7" wheel may not be used with a 9" guard. The bottom surface of wheel must be inside the bend of the guard lip. clamp nut 22191-00 non-hubbed sanding flap disc backing flange 54339-00 Type 27 guard D284937 7" D284939 9" Type 27 guard D284937 7" D284939 9" hubbed sanding flap disc soft mount 445928-01 soft mount 445928-01 Sanding Flap Discs English English backing flange 54339-00 Type 27 hubbed wheel Type 28 hubbed wheel Type 28 guard D284938 9" clamp nut 22191-00 Type 28 non-hubbed wheel backing flange 54339-00 Type 28 guard D284938 9" soft mount 445928-01 clamp nut sanding disc rubber backing pad soft mount 445928-01 Sanding Discs 12 NOTE: Wheel size must match guard size; i.e., a new 7" wheel may not be used with a 9" guard. The bottom surface of wheel must be inside the bend of the guard lip. clamp nut 22191-00 Type 27 non-hubbed wheel Type 27 guard D284937 7" D284939 9" Type 27 guard D284937 7" D284939 9" soft mount 445928-01 soft mount 445928-01 soft mount 445928-01 Grinding Wheels wire wheel Type 27 guard D284937 7" D284939 9" soft mount 445928-01 wire cup brush Type 27 guard D284937 7" D284939 9" soft mount 445928-01 Wire Wheels diamond cutting wheel abrasive cutting wheel 13 clamp nut 608463-00 backing flange 608370-00 backing flange 608370-00 clamp nut 608463-00 Type 1 guard D284931 Type 1 guard D284931 Cutting Wheels NOTE: Wheel size must match guard size; i.e., a 7" wheel may not be used with a 9" guard. flaring cup stone backing flange 608368-00 Type 11 flaring cup guard D284934 4" D284936 6" Flaring Cup Stones English English L SURFACE GRINDING WITH GRINDING WHEELS (FIG. 9) 1. Allow the tool to reach full speed before touching tool to work surface. 2. Apply minimum pressure to work surface, FIG. 9 to allow the tool to operate at high speed. 3. Maintain a 20˚ to 30˚ angle between the tool 20˚–30˚ 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 tool to stop rotating before setting it down. MOUNTING NON-HUBBED WHEELS (FIG. 8) Depressed center, Type 27 grinding wheels FIG. 8 must be used with available accessory flanges. K See the chart on pages 11–13 of this manual for more information. 1. Install the metal backing flange (K) on spindle (F) against the soft mount. F 2. Place wheel against the backing flange, centering the wheel on the backing flange pilot. 3. While depressing the spindle lock button, thread the clamp nut (L) 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. WARNING: Failure to properly seat the wheel against the soft mount before turning the tool on may result in damage to the tool or the wheel. 14 SURFACE FINISHING WITH SANDING FLAP DISCS (FIG. 10) 1. Allow the tool to reach full speed before touching tool to work surface. FIG. 10 2. Apply minimum pressure to work surface, to allow the tool to operate at high speed. 3. Maintain a 5˚ to 10˚ angle between the tool 5˚–10˚ and work surface. EDGE GRINDING WITH GRINDING WHEELS WARNING: Wheels used for cutting and edge grinding may break or kick back 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 1/2" (13 mm) in depth]. The open side of the guard must be positioned away from the operator. For deeper cutting with a Type 1 wheel, use a closed, Type 1 guard. Type 1 guards are available at extra cost from your local dealer or authorized service center. 1. Allow the tool to reach full speed before touching the tool to the work surface. 2. Apply minimum pressure to work surface, to allow the tool to operate at high speed. 3. Protect yourself during edge finishing by directing the open side of the guard away from you. 4. Move the tool continuously in a forward and back motion to avoid creating gouges in the work surface. 5. Remove tool from work surface before turning the tool off. Allow the tool to stop rotating before setting it down. WARNING: Do not use edge grinding wheels for surface grinding applications because edge grinding wheels are not designed for side pressures encountered with surface grinding. Wheel breakage and injury may result. MOUNTING SANDING BACKING PADS (FIG. 11) CAUTION: Proper guard must be re-installed for grinding wheel, sanding flap disc, wire brush, or wire wheel applications after sanding applications are complete. 1. Place or appropriately thread rubber FIG. 11 backing pad (M) down to soft mount. O N 2. Place the sanding disc (N) on the rubber backing pad (M). 3. While depressing spindle lock, thread clamp nut (O) on spindle, piloting the raised hub on the clamp nut into the center of sanding disc and backing pad. 4. Tighten the clamp nut with the proper wrench. 5. To remove the wheel, reverse the above M procedure. Sanding pads and sanding discs must be rated above minimum accessory speed as shown on tool. Recommended sanding backing pads and sanding discs are available at extra cost from DEWALT service centers and DEWALT dealers. NOTE: Guard may be removed for sanding applications with backing pads and sanding discs. Sanding flap discs are considered grinding wheels by ANSI standards and require the use of a guard. (See Mounting and Using Depressed Center Grinding Wheels and Sanding Flap Discs). Mounting and Using Sanding Backing Pads 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 tool to stop rotating before setting it down. 15 Wire brushes and wire wheels must be rated above minimum accessory speed as shown on tool. Use only wire brushes and Mounting and Using Wire Brushes and Wire Wheels USING SANDING BACKING PADS (FIG. 12) Choose the proper grit sandpaper for your application. Sandpaper is 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 coarser 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 work surface. 2. Apply minimum pressure to work surface, allowing tool to operate at high speed. 3. Maintain a 5˚ to 15˚ angle between the FIG. 12 tool and work surface. The sanding disc should contact approximately one 5˚–15˚ inch of work surface. 4. Move the tool constantly in a straight line to prevent burning and swirling of 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. 5. Remove the tool from the work surface before turning the tool off. Allow the tool to stop rotating before setting it down. English English USING WIRE CUP BRUSHES AND WIRE FIG. 13 WHEELS (FIG. 13) Wire wheels and brushes can be used for removing rust, scale and paint, and for smoothing irregular surfaces. 1. Allow tool to reach full speed before 5˚–10˚ touching tool to work surface. 2. Apply minimum pressure to work surface, to allow the tool to operate 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 MOUNTING WIRE BRUSHES AND WIRE WHEELS 1. Thread the wheel on the spindle by hand, seating the wheel against the soft mount. 2. Depress the spindle lock button and use a wrench on the hub of the wire brush or wheel to tighten the wheel. 3. To remove the wheel, depress the spindle lock button and use a wrench on the hub of the wire brush or wheel to loosen it. NOTE: Failure to properly seat the wheel hub against the soft mount before turning the tool on may result in damage to the tool or wheel. wheels provided with a 5/8"–11 threaded hub. A Type 27 guard is required when using wire brushes and wheels. WARNING: Wear work gloves when handling wire brushes or wheels. Wire brushes and wheels can become sharp. 16 MOUNTING FLARING CUP WHEEL (FIG. 15) 1. Remove the soft mount (F). 2. Install the flaring cup wheel backing flange, aligning the flats on spindle (Q) with the flats on backing flange (R). 3. Thread the flaring cup wheel on spindle by hand, seating wheel against backing flange. 4. Depress the spindle lock button and tighten the wheel by hand. 5. To remove the wheel, reverse the above procedure. MOUNTING FLARING CUP WHEEL GUARD (FIG. 14) WARNING: The flaring cup wheel guard is not included with this tool. Flaring cup wheels require proper flanges and guards. 4" flaring cup wheel guard D284934 and 6" flaring cup wheel guard D284936 are available as accessories and include proper flange. Failure to use the proper flange and guard can result in injury resulting from wheel breakage and wheel contact. FIG. 14 1. Install the guard as shown. 2. Guard body should be positioned between the spindle and the operator to provide maximum operator protection. 3. Securely tighten the two clamping P screws (P) supplied with the guard. Mounting and Using Flaring Cup (Type 11) Wheel 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. FIG. 15 Q R USING A FLARING CUP WHEEL (FIG. 16) Flaring cup wheels are designed for heavy material removal. 1. Allow the tool to reach full speed before touching tool to work surface. FIG. 16 2. Apply minimum pressure to work surface, allowing the tool to operate at high speed. 3. Maintain a 5˚ to 10˚ angle between the tool 5˚–10˚ and the 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 tool to stop rotating before setting it down. NOTICE: Failure to properly seat the wheel against backing flange before turning the tool on may result in damage to the tool or the wheel. NOTE: Adjust the guard skirt so that only 1/8" (3.17 mm) of the wheel is exposed by loosening the bolts, allowing the guard to lengthen. Tighten the guard skirt bolts securely before using the grinder. F 17 FIG. 17 I G MOUNTING CLOSED (TYPE 1) GUARD (FIG. 17, 18) 1. Open the guard latch (I), and align the lugs with slots on the gear case cover. Position the guard facing backward, as shown. 2. Push the guard down until the guard lug engages and rotates freely in the groove on the gear case hub. 3. Rotate guard (G) 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 guard latch in open position. FIG. 18 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 (J) with the guard latch in the closed position. J 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 closed, cutting wheel guard is not included with this tool. Cutting wheels require proper flanges and guards. A 7" cutting guard, D284931, is available as an accessory and includes proper, matching flanges. Failure to use proper flange and guard can result in injury resulting from wheel breakage and wheel contact. Mounting and Using Cutting (Type 1) Wheels English English S R USING CUTTING WHEELS (FIG. 20) 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. E FIG. 19 MOUNTING CUTTING WHEELS (FIG. 19) 1. Remove soft mount (E). 2. Install wheel backing flange, aligning flats on spindle (R) with flats on backing flange (S). 3. Place the wheel on the backing flange, centering the wheel on the backing flange pilot. 4. Install the clamp nut, ensuring that the wheel remains centered on the backing flange. 5. Depress the spindle lock button and tighten clamp nut with wrench. 6. Reverse the above procedure to remove the wheel. NOTICE: Do not tighten adjusting screw with guard latch in open position. Undetectable damage to guard or mounting hub may result. 18 FIG. 20 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. Accessories 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 ANSI Z87.1 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. Cleaning 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. MAINTENANCE 2. Apply minimum pressure to work surface, allowing tool to operate at high speed. 3. Once you begin a cut, maintain the angle of the cutting wheel to the work surface. This will keep you from bending the wheel which could result in wheel breakage and injury. 4. Remove the tool from work surface before turning tool off. Allow the tool to stop rotating before setting it down. 90 DAY MONEY BACK GUARANTEE If you are not completely satisfied with the performance of your DEWALT Power Tool, Laser, or Nailer for any reason, you can return 1 YEAR FREE SERVICE DEWALT will maintain the tool and replace worn parts caused by normal use, for free, any time during the first year after purchase. In addition to the warranty, DEWALT tools are covered by our: DEWALT will repair, without charge, any defects due to faulty materials or workmanship for three years from the date of purchase. This warranty does not cover part failure due to normal wear or tool abuse. For further detail of warranty coverage and warranty repair information, visit www.dewalt.com or call 1-800-4-DEWALT (1-800433-9258). This warranty does not apply to accessories or damage caused where repairs have been made or attempted by others. This warranty gives you specific legal rights and you may have other rights which vary in certain states or provinces. Three Year Limited Warranty To assure product SAFETY and RELIABILITY, repairs, maintenance and adjustment (including brush inspection and replacement) should be performed by a DEWALT factory service center, a DEWALT authorized service center or other qualified service personnel. Always use identical replacement parts. Repairs Recommended accessories for use with your tool are available at extra cost from your local dealer or authorized service center. If you need assistance in locating any accessory, please contact DEWALT Industrial Tool Co., 701 East Joppa Road, Baltimore, MD 21286, call 1-800-4-DEWALT (1-800-433-9258) or visit our website: www. dewalt.com. 19 XXXXX it within 90 days from the date of purchase with a receipt for a full refund – no questions asked. LATIN AMERICA: This warranty does not apply to products sold in Latin America. For products sold in Latin America, see country specific warranty information contained in the packaging, call the local company or see website for warranty information. FREE WARNING LABEL REPLACEMENT: If your warning labels become illegible or are missing, call 1-800-4-DEWALT (1-800-4339258) for a free replacement. English
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