5FUNCTIONAL DESCRIPTIONCAUTION:• Always be sure that the tool is switched off and thebattery cartridge is removed before adjusting orchecking function on the tool.Installing or removing battery cartridge12007507• Always switch off the tool before insertion orremoval of the battery cartridge.• To remove the battery cartridge, withdraw it fromthe tool while pressing the buttons on both sides ofthe cartridge.• To insert the battery cartridge, align the tongue onthe battery cartridge with the groove in the housingand slip it into place. Always insert it all the wayuntil it locks in place with a little click. If not, it mayaccidentally fall out of the tool, causing injury to youor someone around you.• Do not use force when inserting the batterycartridge. If the cartridge does not slide in easily, itis not being inserted correctly.Lock button1007508When the lock button is in the locked position , theswitch cannot be actuated.When the lock button is in the unlocked position , theswitch can be actuated.Switch action1007511CAUTION:• Before inserting the battery cartridge into the tool,always check to see that the switch actuatesproperly and returns to the "OFF" position whenreleased.To start the tool, first move the lock button to the releasedposition to release the switch. And then simply pushthe switch on the side for the clockwise rotation andthe side for the counterclockwise rotation. Releasethe switch to stop.CAUTION:• Always check the direction of rotation beforeoperation.• Change the direction only after the tool comes to acomplete stop. Changing the direction of rotationbefore the tool stops may damage the tool.• When not operating the tool, always place the lockbutton in the locked position .Lighting up the front lamp100751210075131. Lamp1. Lamp switch1. Switch1. Lock button1. Button2. Battery cartridge