21 ENGLISHTROUBLESHOOTINGBefore asking for repairs, conduct your own inspection first. If you find a problem that is not explained in the manual,do not attempt to dismantle the tool. Instead, ask Makita Authorized Service Centers, always using Makita replace-ment parts for repairs.Malfunction status Cause ActionThe chain saw does not start. Battery cartridge is not installed. Install a charged battery cartridge.Battery problem (low voltage). Recharge the battery cartridge. If recharg-ing is not effective, replace the batterycartridge.Main power switch is off. The chain saw is automatically turned off ifit is un-operated for a certain period. Turnon the main power switch again.The saw chain does not run. Chain brake activated. Release chain brake.The motor stops running after a little use. Battery's charge level is low. Recharge the battery cartridge. If rechargingis not effective, replace the battery cartridge.No oil on the chain. Oil tank is empty. Fill the oil tank.Oil guide groove is dirty. Clean the groove.Poor oil delivery. Adjust the amount of oil delivery with theadjusting screw.The chain saw does not reach maximumRPM.Battery cartridge is installed improperly. Install the battery cartridge as described inthis manual.Battery power is dropping. Recharge the battery cartridge. If recharg-ing is not effective, replace the batterycartridge.The drive system does not work correctly. Ask the authorized service center in yourregion for repair.The main power lamp is blinking in green. Switch trigger is pulled under an unoperat-able condition.Pull the switch trigger after the main powerswitch is turned on and the chain brake isreleased.Chain does not stop even the chain brakeis activated:Stop the tool immediately!The brake band is worn down. Ask the authorized service center in yourregion for repair.Abnormal vibration:Stop the tool immediately!Loose guide bar or saw chain. Adjust the guide bar and saw chaintension.Tool malfunction. Ask the authorized service center in yourregion for repair.The saw chain cannot be installed. The combination of saw chain andsprocket is not correct.Use the correct combination of saw chainand sprocket by referring to the section forspecifications.OPTIONAL ACCESSORIESCAUTION: These accessories or attachmentsare recommended for use with your Makita toolspecified in this manual. The use of any otheraccessories or attachments might present a risk ofinjury to persons. Only use accessory or attachmentfor its stated purpose.If you need any assistance for more details regard-ing these accessories, ask your local Makita ServiceCenter.• Saw chain• Guide bar• Guide bar cover• File• Tool bag• Makita genuine battery and chargerWARNING: If you purchase a guide bar ofdifferent length from the standard guide bar, alsopurchase a suitable guide bar cover together. Itmust fit and fully cover the guide bar on the chainsaw.NOTE: Some items in the list may be included in thetool package as standard accessories. They maydiffer from country to country.