Dewalt DCF899M1 Instruction Manual - Page 12

English 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 switch to start operation. Release 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. Lift Ring (Fig. J) DCF898 WARNING: To reduce the risk of serious personal injury, DO NOT use the lift ring for tethering or securing the tool to a person or object during use when elevated. The lift ring 12 is for moving the tool into difficult to reach areas. Securely fasten lifting device to the ring before moving the tool. Follow all worksite rules. Fig. J 12 MAINTENANCE WARNING: To reduce the risk of serious personal injury, turn unit off and disconnect it from power source 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. 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. Charger Cleaning Instructions WARNING: Shock hazard. Disconnect the charger from the AC outlet before cleaning. Dirt and grease may be removed from the exterior of the charger using a cloth or soft non-metallic brush. Do not use water or any cleaning solutions. 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. WARNING: To reduce the risk of injury, use only DeWALT impact-ready accessories. WARNING: Use only impact accessories. Non-impact accessories may break and cause a hazardous condition. Inspect accessories prior to use to ensure that they cont­ ain no cracks. 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. 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. 10