Dewalt DCF801F2 Instruction Manual - Page 12

English Fig. F 6 Usage (Fig. A) WARNING: Use only impact accessories. Non-impact accessories may break and cause a hazardous condition. Inspect accessory prior to use to ensure that it con­tains no cracks. CAUTION: Ensure fastener and/or system will withstand the level of torque generated by the tool. Excessive torque may cause breakage and possible personal injury. 1. Place the accessory on the fastener head. Keep the tool pointed straight at the fastener. 2. Press variable speed trigger switch 3 to start operation. Release variable speed trigger switch to stop operation. Always check torque with a torque wrench, as the fastening torque is affected by many factors including the following: -- Voltage: Low voltage, due to a nearly discharged battery, will reduce fastening torque. -- Accessory size: Failure to use the correct accessory size will cause a reduction in fastening torque. -- Bolt size: Larger bolt diameters generally require higher fastening torque. Fastening torque will also vary according to length, grade, and torque coefficient. -- Bolt: Ensure that all threads are free of rust and other debris to allow proper fastening torque. -- Material: The type of material and surface finish of the material will affect fastening torque. -- Fastening time: Longer fasten­ing time results in increased fastening torque. Using a longer fastening time than recommended could cause the fasteners to be overstressed, stripped or damaged. Your impact tool can generate the following maximum torque: Cat # Nm Ft.-Lbs. In.-Lbs DCF801 163.8 120.8 1450 DCF902 169.5 125 1500 MAINTENANCE WARNING: To reduce the risk of serious personal injury, turn unit off and remove the battery pack before making any adjustments or removing/ installing attachments or accessories. An accidental start-up can cause injury. 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 ANSI Z87.1 approved eye protection when performing this procedure. 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 recommended accessories should be used with this product. 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, Towson, MD 21286, call 1-800-4-DeWALT (1-800-433-9258) or visit our website: www.dewalt.com. Repairs The charger and battery pack are not serviceable. There are no serviceable parts inside the charger or battery pack. WARNING: To assure product SAFETY and RELIABILITY, repairs, maintenance and adjustment (including brush inspection and replacement, when applicable) should be performed by a DeWALT factory service center or a DeWALT authorized service center. Always use identical replacement parts. Register Online Thank you for your purchase. Register your product now for: • WARRANTY SERVICE: Registering your product will help you obtain more efficient warranty service in case there is a problem with your product. • CONFIRMATION OF OWNERSHIP: In case of an insurance loss, such as fire, flood or theft, your registration of ownership will serve as your proof of purchase. 10