46. Do not touch the bit or the workpiece immedi-ately after operation; they may be extremely hotand could burn your skin.7. Some material contains chemicals which may betoxic. Take caution to prevent working dust inha-lation and skin contact. Follow material suppliersafety data.SAVE THESE INSTRUCTIONSWARNING:MISUSE or failure to follow the safetyrules stated in this instruction manualmay cause serious personal injury.SYMBOLSUSD202-2The followings show the symbols used for tool.V............................voltsA ...........................amperesHz..........................hertz..................alternating current.......................no load speed.......................Class II Construction.../min....................revolutions or reciprocation perminute..................number of blowFUNCTIONAL DESCRIPTIONCAUTION:• Always be sure that the tool is switched off andunplugged before adjusting or checking function onthe tool.Switch actionCAUTION:• Before plugging in the tool, always check to seethat the switch trigger actuates properly and returnsto the “OFF” position when released.• Switch can be locked in “ON” position for ease ofoperator comfort during extended use. Applycaution when locking tool in “ON” position andmaintain firm grasp on tool.To start the tool, simply pull the switch trigger. Tool speedis increased by increasing pressure on the switch trigger.Release the switch trigger to stop.For continuous operation, pull the switch trigger and thenpush 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, HP1621FCAUTION:• 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 actionThis tool has a reversing switch to change the direction ofrotation. Move the reversing switch to the position (A1. Switch trigger2. Lock buttonn˚120043591. Lamp1. Reversingswitch1004360AB 1004361