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Facilità d'uso
READ AND SAVE ALL INSTRUCTIONS FOR FUTURE USE. 6 OPERATION WARNING To reduce the risk of injury, wear safety goggles or glasses with sideshields. Unplug the tool beforechanging accessories or makingadjustments. Selecting Action (Fig. 3) MILWAUKEE 7/8" Rotary Hammers have two settings: drilling only and hammering with rotation. Hammer symbol Fig. 3 Drill symbol 1. To select drilling only, rotate the shift knob 180° in the direction of the double arrow so that the tab portion of the knob points toward the “Drill” symbol. Do not shift the tool when it is running or coasting to a stop. When drilling in wood or steel, shift knob to drilling and use chuck adapter kit (see “Accessories”). 2. To select hammering with rotation, rotate the shift knob 180° in the direction of the double arrow so that the tab portion of the knob points toward the “Hammer” symbol. NOTE: To engage the hammering mechanism, maintain pressure the bit. When pressure on the bit released, the hammering stop. Using the Forward/Reverse Switch (Fig. 4) Fig. 4 Forward Reverse Forward Reverse 1. For forward (clockwise) rotation, push the forward/reverse switch to forward as shown. 2. For reverse (counterclockwise) rotation, push the forward/reverse switch to reverse as shown. Check the direction of rotation beofre use. Although an interlock prevents Using forward/reverse switch (Fig. 4) Check the direction of rotation before use. Although an interlock prevents reversing the tool while the motor is running, allow the motor to come to a full stop before reversing. Starting, Stopping & Controlling Speed 1. To start the tool, pull the trigger 2. To stop the tool, release the trigger. 3. To vary the driving speed, simply increase or decrease pressure on trigger. The further the trigger is pulled, the greater the speed. 8 Cold Starting If this tool is stored for a long period of time or at cold temperatures, it may not hammer initially because the lubrication has become stiff. To warm up the tool: 1. Insert and lock a bit into the tool. 2. Turn the tool on, applying force to the bit against a concrete or wood surface. 3. Turn the tool on and off every few seconds. In a short time, the tool will start hammering. The colder the tool is, the longer it will take to warm it up. Operation Position the tool, grasp the handles firmly and pull the trigger. Always hold the tool securely using both handles and maintain control. Use only enough pressure to hold the tool in place and prevent the tip of the bit from wandering. This tool has been designed to achieve top performance with only moderate pressure. Let the tool do the work. If the speed begins to drop off when drilling deep holes, pull the bit partially out of the hole while the tool is running to help clear dust. NOTE: Do not use water to settle the dust since it will clog the bit flutes and tend to make the bit bind in the hole. If the bit should bind, a built-in, non-adjustable slip clutch prevents the bit from turning. If this occurs, stop the tool, free the bit and begin again. Using Rotary Percussion Core Bits (Fig.5 - 8) Core bits are useful for drilling larger holes for conduit and pipe. MILWAUKEE Thin Wall Core Bits have heat-treated steel bodies with durable carbide tips. These core bits are specially designed for fast, accurate drilling with combined hammering and rotary action. 1. Clean and lubricate the threads on the adapter and core bit to make later removal easier. Screw the threaded end of the adapter into the rear of the core bit. NOTE: For core bits 1- 1/4" and larger, push the guide plate onto the end of the center pin. Insert pin and guide plate assembly core bit. Be sure the small center pin is securely hole in the center Fig. 5 2. Insert the adapter into the nose of the tool as described in “Installing Bits”. Set the hammer/drill shift knob to hammering with rotation. 3. Press the center pin firmly against your center mark, hold the tool firmly and pull the trigger (Fig. 6). Fig. 6 NOTE: If a center pin and guide plate are not available, use a template or notched board to start the hole (Fig. 7). Fig. 7 9 5. After drilling to about the depth of the core bit teeth, remove the center pin and guide plate from the core bit. Resume drilling. 6. To change the core bit, hold the tool upwards, pointing it away from your body as shown, and run it briefl y in forward to loosen the core bit from the adapter (Fig. 8). Fig. 8 NOTE: To make holes deeper than 3", remove the core bit, break and remove the core. Resume drilling. MAINTENANCE WARNING To reduce the risk of injury, always unplug your tool before performing anymaintenance. Never disassemble the tool or try to do any rewiring on thetool's electrical system. Contact aMILWAUKEE service facility for ALL repairs. Maintaining Tools Keep your tool in good repair by adopting a regular maintenance program. Before use, examine the general condition of your tool. Inspect guards, switches, tool cord set and extension cord for damage. Check for loose s...
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