8For Models HR2310T, HR2610, HR2610T, HR2611F,HR2611FTRotation with hammering12010724For drilling in concrete, masonry, etc., rotate the actionmode changing knob to the symbol. Use atungsten-carbide tipped bit.Rotation only1010726For drilling in wood, metal or plastic materials, rotate theaction mode changing knob to the symbol. Use atwist drill bit or wood bit.Hammering only1010725For chipping, scaling or demolition operations, rotate theaction mode changing knob to the symbol. Use a bullpoint, cold chisel, scaling chisel, etc.CAUTION:• Do not rotate the action mode changing knob whenthe tool is running under load. The tool will bedamaged.• To avoid rapid wear on the mode changemechanism, be sure that the action mode changingknob is always positively located in one of the threeaction mode positions.• When changing from the symbol mode to thesymbol mode, the action mode changing knobmay no longer move in the symbol position. Atthis time, turn the tool on or turn the chuck by handin the symbol position and then rotate theaction mode changing knob. Forcing the actionmode changing knob may cause tool damage.Torque limiterThe torque limiter will actuate when a certain torque levelis reached. The motor will disengage from the outputshaft. When this happens, the bit will stop turning.CAUTION:• As soon as the torque limiter actuates, switch offthe tool immediately. This will help preventpremature wear of the tool.• Bits such as hole saw, which tend to pinch or catcheasily in the hole, are not appropriate for this tool.This is because they will cause the torque limiter toactuate too frequently.ASSEMBLYCAUTION:• Always be sure that the tool is switched off andunplugged before carrying out any work on the tool.Side grip (auxiliary handle)12010713CAUTION:• Always use the side grip to ensure operating safety.Install the side grip so that the protrusions on the grip fitin between the grooves on the tool barrel. Then tightenthe grip by turning clockwise at the desired position. Itmay be swung 360° so as to be secured at any position.Bit greaseCoat the bit shank head beforehand with a small amountof bit grease (about 0.5 - 1 g).This chuck lubrication assures smooth action and longerservice life.1. Protrusions2. Grooves1. Hammering only1. Rotation only1. Rotation withhammering2. Action modechanging knob