Dewalt D25911K Instruction Manual - Page 9

Electronic Impact Energy Control Dial (Fig. A) The electronic impact energy control dial 7 offers optimal tool control for precise chiseling with minimal break‑out when chiseling soft or brittle materials. It also allows the use of smaller accessories without risk of breakage. ASSEMBLY AND ADJUSTMENTS  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. Bail/Loop Style Auxiliary Handle (Fig. B)  WARNING: To reduce the risk of personal injury, ALWAYS operate the tool with the bail/loop style auxiliary handle properly installed and securely tightened. Failure to do so may result in the bail/loop style auxiliary handle slipping during tool operation and subsequent loss of control. Hold tool with both hands to maximize control. The bail/loop style auxiliary handle 5 clamps to the front of the gear case and may be rotated 360˚ to permit right- or left‑hand use. Mounting the Bail/Loop Style Auxiliary Handle (Fig. B) 1. Widen the ring opening 10 of the bail/loop style auxiliary handle 5 by rotating the screw for handle mounting 6 counterclockwise. 2. Slide the assembly onto the nose of the tool through the ring opening 10 and onto the chisel position index collar 3 , past the chisel holder and sleeve. 3. Rotate the bail/loop style auxiliary handle to the desired position. 4. Lock the bail/loop style auxiliary handle in place by securely tightening the screw for handle mounting 6 , rotating it clockwise so that the assembly will not rotate. Chisels and Chisel Holder  WARNING: Burn hazard. ALWAYS wear gloves when changing chisels. Accessible metal parts on the tool and chisels may get extremely hot during operation. Small bits of broken material may damage bare hands.  WARNING: Do not attempt to tighten or loosen drill chisels (or any other accessory) by gripping the front part of the chuck and turning the tool on. Damage to the chuck and personal injury may occur. The demolition hammer can be fitted with various chisels depending on the desired application. Use sharp chisels only. Inserting and Removing SDS Max® Chisels (Fig. C) NOTE: Accessories and attachments used must be lubricated around the SDS Max® fitment before installation. English 1. Insert chisel in the tool holder/sleeve 4 and apply downward pressure while rotating to secure the chisel into place. The chisel shank must be clean. 2. Ensure the chisel is properly engaged. NOTE: The chisel needs to move several centimeters in and out of the tool holder/sleeve 4 when properly engaged. 3. To remove the chisel pull back the tool holder/sleeve 4 and pull the chisel out. Indexing the Chisel Position (Fig. D) The chisel can be indexed and locked into 12 different positions. 1. Insert the chisel as described above. 2. Rotate the chisel position index collar 3 in the direction of the arrow until the chisel is in the desired position. NOTE: After finding the desired position, slightly maneuver the chisel back and forth to ensure the chisel is properly engaged. Setting the Electronic Impact Energy Control Dial (Fig. A) Turn the dial 7 to the desired level. The higher the number, the greater the impact energy. With dial settings from 1 (low) to 7 (full power) the tool is extremely versatile and adaptable for many different applications. The required setting is a matter of experience, for example: • When chiseling soft, brittle materials or when minimum break‑out is required, set the dial to 1 or 2 (low); • When breaking harder materials, set the dial to 7 (full power). Wireless Tool Control™ (Fig. A)  CAUTION: Read all safety warnings, instructions and specifications of the appliance which is paired with the tool. Your tool is equipped with a Wireless Tool Control™ transmitter which allows your tool to be wirelessly paired with another Wireless Tool Control™ device, such as a DeWALT dust extractor. To pair your tool using Wireless Tool Control™, depress the trigger switch 1 and the Wireless Tool Control™ pairing button on the separate device. An LED on the separate device will let you know when your tool has been successfully paired. Service Indicator LED (Fig. A) Your chipping hammer has one LED, indicating a service indicator. Refer to the table for more information on LED functionality. 7