13 ENGLISHFUNCTIONAL DESCRIPTIONCAUTION: Always be sure that the tool isswitched off and the battery cartridge is removedbefore adjusting or checking function on the tool.Installing or removing battery cartridgeCAUTION: Always switch off the tool beforeinstalling or removing of the battery cartridge.CAUTION: Hold the tool and the battery car-tridge firmly when installing or removing batterycartridge. Failure to hold the tool and the batterycartridge firmly may cause them to slip off your handsand result in damage to the tool and battery cartridgeand a personal injury.► Fig.3: 1. Red indicator 2. Button 3. Battery cartridgeTo remove the battery cartridge, slide it from the toolwhile sliding the button on the front of the cartridge.To install the battery cartridge, align the tongue on thebattery cartridge with the groove in the housing and slipit into place. Insert it all the way until it locks in placewith a little click. If you can see the red indicator on theupper side of the button, it is not locked completely.CAUTION: Always install the battery cartridgefully until the red indicator cannot be seen. If not,it may accidentally fall out of the tool, causing injury toyou or someone around you.CAUTION: Do not install the battery cartridgeforcibly. If the cartridge does not slide in easily, it isnot being inserted correctly.Indicating the remaining battery capacityOnly for battery cartridges with the indicator► Fig.4: 1. Indicator lamps 2. Check buttonPress the check button on the battery cartridge to indi-cate the remaining battery capacity. The indicator lampslight up for a few seconds.Indicator lamps RemainingcapacityLighted Off Blinking75% to 100%50% to 75%25% to 50%0% to 25%Charge thebattery.The batterymay havemalfunctioned.NOTE: Depending on the conditions of use and theambient temperature, the indication may differ slightlyfrom the actual capacity.Tool / battery protection systemThe tool is equipped with a tool/battery protection sys-tem. This system automatically cuts off power to themotor to extend tool and battery life. The tool will auto-matically stop during operation if the tool or battery isplaced under one of the following conditions:Overload protectionWhen the battery is operated in a manner that causesit to draw an abnormally high current, the tool automati-cally stops and the main power lamp blinks in green. Inthis situation, turn the tool off and stop the applicationthat caused the tool to become overloaded. Then turnthe tool on to restart.Overheat protectionWhen the tool or battery is overheated, the tool stopsautomatically and the main power lamp lights up in red.In this case, let the tool and battery cool before turningthe tool on again.NOTE: In high temperature environment, the over-heat protection likely to work and the tool stopsautomatically.Overdischarge protectionWhen the battery capacity is not enough, the tool stopsautomatically and the main power lamp blinks in red. Inthis case, remove the battery from the tool and chargethe battery.Main power switchWARNING: Always turn off the main powerswitch when not in use.To turn on the tool, press the main power switch untilthe main power lamp lights up in green. To turn off,press the main power switch again.► Fig.5: 1. Main power lamp 2. Main power switchNOTE: The main power lamp blinks in green if theswitch trigger is pulled under unoperatable conditions.The lamp blinks in one of the following conditions.• When you turn on the main power switch whileholding down the lock-off lever and the switchtrigger.• When you pull the switch trigger while the chainbrake is applied.• When you release the chain brake while holdingdown the lock-off lever and pulling the switchtrigger.NOTE: This chain saw employs the auto power-offfunction. To avoid unintentional start up, the mainpower switch will automatically shut down when theswitch trigger is not pulled for a certain period afterthe main power switch is turned on.