Assessments - 4, GPA: 4.3
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2. Ensure the accessory is fully inserted, so that the jaws of the chuck grip onto the flat section of the accessory. 3. To firmly clamp the accessory in the chuck, grasp the chuck housing and rotate the chuck housing in a clockwise direction. Ensure the bit is retained firmly or damage to the chuck jaws can result. 4. To remove the accessory, open the chuck jaws by firmly holding the chuck housing and rotating the housing in an anti clockwise direction. Open the jaws sufficiently so as to remove the specific accessory. Adjustable side handle 1. Turn the side handle clamp knob (6) anti-clockwise to loosen the collar fully and slip it over the chuck (1) onto the drill. 2. Adjust the position of the side handle (5) to suit the application and tighten the side handle clamp knob (6) to secure it in place. Drilling Drilling metals • For maximum performance, use high speed steel bits for metal or steel drilling. • Ensure that the torque adjustment / hammer selection collar (2) is in normal drilling mode. • Begin drilling at a very low speed to prevent the bit from slipping off the starting point. • Always clamp sheet metal. • Support thin metal with a block of wood to avoid distorting it. • Use a punch to mark the centre of the hole. • Use a suitable lubricant for the material you are working on. Use: for: Oil SteelTurpentine or paraffin Aluminium Do not lubricate Brass, copper or cast iron Drilling plastics and plastic coated chipboard • Use high speed drill bits • See drilling wood below Drilling masonry • For maximum performance use carbide-tipped masonry impact bits when drilling holes in brick, tile, concrete etc. • Turn the mode selector to hammer mode, then rotate the torque collar to the drill position. • Apply light pressure and medium speed for best results in brick. • Apply additional pressure and high speed for hard materials such as concrete. • When drilling holes in tile, practice on a scrap piece to determine the best speed and pressure. Drilling wood • For maximum performance, use high speed steel bits for wood drilling. • Ensure that the mode selector is in normal drilling mode. • Begin drilling at a very low speed to prevent the bit from slipping off the starting point. Increase the speed as the drill bites into the material. • When drilling through holes, place a block of wood behind the work piece to prevent ragged or splintered edges on the back side of the hole. • Warning. Never attempt to lock the trigger switch in the on position, do not lock the trigger on jobs where your hammer drill may need to be stopped suddenly. All drilling operations • Mark off the centre of the hole using a centre punch or nail. Chuck replacement Chuck removal Always wear eye protection. Turn the torque adjustment collar/hammer selection collar (2) to the “drill” position and low gear, on the gear selector (14). Tighten the chuck around the shorter end of a hex key (not supplied) of 5mm or greater size. Using a wooden mallet or similar object, strike the longer end in the clockwise direction. This will loosen the screw inside the chuck. 1. Open chuck jaws fully. 2. Insert a 5mm hex key into front of chuck between jaws to engage screw head. Remove screw by turning clockwise. 3. Place the hex key in chuck and tighten. Using a wooden mallet or similar object, strike key sharply in the anti-clockwise direction. This will loosen the chuck so that it can be unscrewed by hand. Chuck installation 1. Screw the chuck on by hand as far as it will go and insert screw (LH thread). 2. Tighten the chuck around the shorter end of hex key (not supplied) strike the longer end in the clockwise direction with a wooden mallet. 3. Remove the hex key and open the jaws fully. Tighten the screw in the centre of the chuck firmly, with the hex key in an anti-clockwise direction. Maintenance • Store the tools, instruction manual and where necessary the accessories in the original packaging. In this way you will always have all the information and parts ready to hand. • Do not throw used batteries into fire or water. There is a danger of explosion! Please hand in non-working or used batteries, or tools with built-in batteries, to the environmentally-safe disposal unit at a municipal waste- disposal centre, or to your dealer. Carefully read the entire Instruction Manual before using this product. Before returning this product for a Warranty Claim or any other reason Please Call 1300 880 001 (Australia) or 0800 445 721 (New Zealand) When you make your call, please have the following information at hand: • GMC Product Type • GMC Product CodeA GMC Service Engineer will take your call and, in most cases, will be able to solve your problem over the phone. You are welcome to use this phone-in service to make suggestions or give comments about any GMC product. With continuing product development changes may have occurred which render the product received slightly different to that shown in this instruction manual. The manufacturer reserves the right ...
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