Dewalt DWE490-B2 Instruction Manual - Page 39

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. Edge Grinding and Cutting 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. CAUTION: Wheels used for edge grinding and cutting may break or kick back if they bend or twist while the tool is being used. In all edge grinding/ cutting operations, the open side of the guard must be positioned away from the operator. NOTICE: Edge grinding/cutting with a Type 27 wheel must be limited to shallow cutting and notching- less than 13 mm in depth when the wheel is new. Reduce the depth of cutting/notching equal to the reduction of the wheel radius as it wears down. Refer to the Accessories Chart for more information. Edge grinding/cutting with a Type 1 wheel requires usage of a Type 1 guard. 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 the work surface, allowing the tool to operate at high speed. Grinding/cutting rate is greatest when the tool operates at high speed. 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 tool to stop rotating before laying it down. MAINTENANCE WARNING: To reduce the risk of serious personal injury, turn unit off and disconnect it from power source before making any adjustments or removing/installing attachments or accessories. An accidental start-up can cause injury. Your DeWALT power tool has been designed to operate over a long period of time with a minimum of maintenance. English Continuous satisfactory operation depends upon proper tool care and regular cleaning. Lubrication Your power tool requires no additional lubrication. Motor Brushes When brushes become worn, the tool will automatically stop, preventing damage to the motor. Brush replacement should be performed by DeWALT authorized service centers or other qualified service personnel. Qualified service personnel should follow the procedures below when replacing motor brushes. 1. Remove the brush doors located on the sides of motor housing. 2. To remove the brush, hold the female terminal, which is attached to the brush lead wire, and disconnect the female terminal from the male terminal. 3. Pull the brush straight up out of the brush holder. 4. Replace brushes, in pairs, with original DeWALT brushes available from DeWALT authorized service centers. 5. Ensure that the brushes slide freely in brush box. 6. Reconnect the brush lead wire to brush box terminal. 7. Reinstall the brush doors before using the tool. Torque screws to 10 in-lbs, maximum. Overtightening may cause screws to strip. Cleaning 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 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. Accessories 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 37