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Manafacture: DeWalt File size: 902.76 kb File name: Language of manual:

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 disburse 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 use eye protection. All users and bystanders must wear eye protection that conforms to ANSI Z87.1. 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: V ........................volts A .......................amperes Hz ......................hertz W ......................watts min ....................minutes .................... alternating current .................direct current .................... alternating or direct current ......................Class I Construction no.....................no load speed (grounded) ..................... earthing terminal ......................Class II Construction ..................... safety alert symbol (double insulated) BPM ................. beats per minute …/min ...............per minute RPM .................revolutions per minute Motor Your DEWALT tool is powered by a DEWALT-built motor. Be sure your power supply agrees with the nameplate markings. Voltage decrease of more than 10% will cause loss of power and overheating. All DEWALT tools are factory tested. COMPONENTS (Fig. 1) WARNING: Never modify the power tool or any part of it. Damage or personal injury could result. A. Trigger switch F. Mode selector B. Lock-on slider G. Electronic Speed and impact control dial C. Side handle H. Clamp knob D. Main handle I. Rear side handle position E. Active vibration control INTENDED USE These heavy-duty rotary hammers have been designed for professional hammerdrilling, and chipping at various work sites (i.e., construction sites). DO NOT use under wet conditions or in presence of flammable liquids or gases. These heavy-duty rotary hammers are professional power tools. DO NOT let children come into contact with the tool. Supervision is required when inexperienced operators use this tool. ASSEMBLY AND ADJUSTMENTS Side Handle (Fig. 1) WARNING: To reduce the risk of personal injury, ALWAYS operate the tool with the side handle properly installed and securely tightened. Failure to do so may result in the side handle slipping during tool operation and subsequent loss of control. Hold tool with both hands to maximize control. The side handle clamps to the front barrel (collar) and may be rotated 360° to permit right or left-hand use. For operating convenience, the side handle can be installed in front or rear positions. TO MOUNT IN FRONT POSITION (FIG. 2) 1. Unscrew the side handle (C) and disassemble the side handle clamp (J). 2. Snap the steel ring (K) over the collar (L) behind the tool holder (M). Squeeze both ends of the steel ring together. Mount the bushing (N) and insert the pin (O). 3. Slide the side handle clamp (J) over the bushing and screw on the clamp knob (H)–do not tighten. 4. Screw the side handle (C) into the clamp knob (H) and tighten. 5. Rotate the side handle mounting assembly to the desired position. For hammerdrilling horizontally with a heavy drill bit, place the side handle assembly at an angle of approximately 20° to the tool for optimum control. 6. Lock the side handle mounting assembly in place by tightening the clamp knob (H). TO MOUNT IN REAR POSITION (FIG. 3) 1. Unscrew the side handle (C) and remove it from the side handle mounting assembly. Leave the side handle mounting assembly in the front position. 2. Screw the side handle directly into one of the rear side handle positions (I) on either side of the tool. Active Vibration Control (Fig. 1) D25602, D25651, D25831, D25851 For best vibration control, hold the tool with one hand on the main handle (D) and the other hand on the side handle (C). Apply just enough pressure so the damping device on the main handle is approximately mid stroke. The hammer only needs enough pressure to engage the active vibration control. Applying too much pressure will not make the tool drill or chip faster and active vibration control will not engage. Inserting and Removing Spline Drive Accessories (Fig. 4) D25553, D25651, D25851 WARNING: To reduce the risk of serious personal injury, turn tool off ...

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