4Makita Corporation3-11-8, Sumiyoshi-cho, Anjo, Aichi, JAPANAuthorized Representative in Europe:Makita International Europe Ltd.Michigan Drive, Tongwell, Milton Keynes, Bucks MK158JD, ENGLAND GEB003-2SPECIFIC SAFETY RULESDO NOT let comfort or familiarity with product(gained from repeated use) replace strict adherenceto hammer drill safety rules. If you use this powertool unsafely or incorrectly, you can suffer seriouspersonal injury.1. Wear ear protectors with impact drills.Exposure to noise can cause hearing loss.2. Use auxiliary handles supplied with the tool.Loss of control can cause personal injury.3. Hold power tools by insulated grippingsurfaces when performing an operation wherethe cutting tool may contact hidden wiring orits own cord. Contact with a "live" wire will makeexposed metal parts of the tool "live" and shockthe operator.4. Always be sure you have a firm footing.Be sure no one is below when using the tool inhigh locations.5. Hold the tool firmly with both hands.6. Keep hands away from rotating parts.7. Do not leave the tool running. Operate the toolonly when hand-held.8. Do not touch the bit or the workpieceimmediately after operation; they may beextremely hot and could burn your skin.9. Some material contains chemicals which maybe toxic. Take caution to prevent dustinhalation and skin contact. Follow materialsupplier safety data.SAVE THESE INSTRUCTIONS.WARNING:MISUSE or failure to follow the safety rules stated inthis instruction manual may cause serious personalinjury.FUNCTIONAL DESCRIPTIONCAUTION:• Always be sure that the tool is switched off andunplugged before adjusting or checking function onthe tool.Switch actionFig.1CAUTION:• Before plugging in the tool, always check to seethat the switch trigger actuates properly andreturns to the "OFF" position when released.To start the tool, simply pull the switch trigger. Toolspeed is increased by increasing pressure on the switchtrigger. Release the switch trigger to stop.For continuous operation, pull the switch trigger andthen push in the lock button.To stop the tool from the locked position, pull the switchtrigger fully, then release it.Lighting up the lampsFor Model HP1620F, HP1621FFig.2CAUTION:• Do not look in the light or see the source of lightdirectly.To turn on the lamp, pull the trigger. Release the triggerto turn it off.NOTE:• Use a dry cloth to wipe the dirt off the lens of lamp.Be careful not to scratch the lens of lamp, or it maylower the illumination.• Never use gasoline or thinner to clean the lens ofthe lamp, or it will be damaged.Reversing switch actionFig.3This tool has a reversing switch to change the directionof rotation. Move the reversing switch to the position(A side) for clockwise rotation or the position (B side)for counterclockwise rotation.CAUTION:• Always check the direction of rotation beforeoperation.• Use the reversing switch only after the tool comesto a complete stop. Changing the direction ofrotation before the tool stops may damage the tool.• If the switch trigger can not be depressed, check tosee that the reversing switch is fully set toposition (A side) or (B side).Selecting the action modeFig.4This tool has an action mode change lever. For rotationwith hammering, slide the action mode change lever tothe right ( symbol). For rotation only, slide the actionmode change lever to the left ( symbol).