Makita HR2470F Owners Manual - Page 8

Set the action mode changing knob to the symbol. Hold the tool firmly with both hands. Turn the tool on and apply slight pressure on the tool so that the tool will not bounce around, uncontrolled. Pressing very hard on the tool will not increase the efficiency. Drilling in wood or metal 1. Chuck adapter 1 2. Keyless drill chuck 2 004223 1 007944 1. Quick change chuck for SDS-plus 2. Change cover line 3. Chain cover 3 2 2 1 007945 4 3 1. Spindle 2. Quick change drill chuck 3. Change cover line 4. Change cover 1 1. Sleeve 2. Ring 3. Quick change drill chuck 2 3 When installing it, refer to "changing the quick change chuck for SDS-plus " described on the previous page. Hold the ring and turn the sleeve counterclockwise to open the chuck jaws. Place the bit in the chuck as far as it will go. Hold the ring firmly and turn the sleeve clockwise to tighten the chuck. To remove the bit, hold the ring and turn the sleeve counterclockwise. Set the action mode changing knob to the symbol. You can drill up to 13 mm diameter in metal and up to 32 mm diameter in wood. CAUTION: • Never use "rotation with hammering" when the quick change drill chuck is installed on the tool. The quick change drill chuck may be damaged. Also, the drill chuck will come off when reversing the tool. • Pressing excessively on the tool will not speed up the drilling. In fact, this excessive pressure will only serve to damage the tip of your bit, decrease the tool performance and shorten the service life of the tool. • There is a tremendous twisting force exerted on the tool/bit at the time of hole breakthrough. Hold the tool firmly and exert care when the bit begins to break through the workpiece. • A stuck bit can be removed simply by setting the reversing switch to reverse rotation in order to back out. However, the tool may back out abruptly if you do not hold it firmly. • Always secure small workpieces in a vise or similar hold-down device. Diamond core drilling When performing diamond core drilling operations, always set the change lever to the position to use "rotation only" action. CAUTION: • If performing diamond core drilling operations using "rotation with hammering" action, the diamond core bit may be damaged. MAINTENANCE 004224 For Model HR2470/HR2470F Use the optional drill chuck assembly. When installing it, refer to "Installing or removing the bit" described on the previous page. For model HR2470T/HR2470FT Use the quick change drill chuck as standard equipment. CAUTION: • Always be sure that the tool is switched off and unplugged before attempting to perform inspection or maintenance. To maintain product SAFETY and RELIABILITY, repairs, carbon brush inspection and replacement, any other maintenance or adjustment should be performed by Makita Authorized or Factory Service Centers, always using Makita replacement parts. 8