10 ENGLISHFor tool with lock-off buttonTo prevent the switch trigger from being accidentallypulled, a lock-off button is provided. To start the tool,press the lock-off button and pull the switch trigger.Release the switch trigger to stop.WARNING: NEVER defeat the lock-off buttonby taping down or some other means. A switch witha negated lock-off button may result in unintentionaloperation and serious personal injury.WARNING: NEVER use the tool if it runs whenyou simply pull the switch trigger without press-ing the lock-off button. A switch in need of repairmay result in unintentional operation and seriouspersonal injury. Return tool to a Makita service centerfor proper repairs BEFORE further usage.NOTICE: Do not pull the switch trigger hardwithout pressing in the lock-off button. This cancause switch breakage.For tool without lock button/lock-off buttonTo start the tool, simply pull the switch trigger. Releasethe switch trigger to stop.ASSEMBLYCAUTION: Always be sure that the tool isswitched off and unplugged before carrying outany work on the tool.Removing or installing circular sawbladeCAUTION: Be sure the circular saw blade isinstalled with teeth pointing up at the front of thetool.CAUTION: Use only the Makita wrench toinstall or remove the circular saw blade.To remove the circular saw blade, press the shaft lockfully so that the circular saw blade cannot revolve anduse the wrench to loosen the hex bolt counterclockwise.Then remove the hex bolt, ring (country specific), outerflange and circular saw blade.► Fig.11: 1. Shaft lock 2. Hex wrenchFor tool without the ring► Fig.12: 1. Hex bolt 2. Outer flange 3. Circular sawblade 4. Inner flange 5. Spindle ringFor tool with the ring► Fig.13: 1. Hex bolt 2. Outer flange 3. Circular sawblade 4. Ring 5. Inner flange 6. Spindle ringTo install the circular saw blade, follow the removalprocedure in reverse.For tool with the inner flange forother than 15.88 mm hole-diametersaw bladeMount the inner flange onto the mounting shaft so thatthe protrusion on the inner flange faces outward andthen place saw blade and outer flange.► Fig.14: 1. Mounting shaft 2. Inner flange 3. Circularsaw blade 4. Outer flange 5. Hex boltWARNING: BE SURE TO TIGHTEN THE HEXBOLT CLOCKWISE SECURELY. Also be carefulnot to tighten the bolt forcibly. Slipping your handfrom the hex wrench can cause a personal injury.For tool with the inner flange for a15.88 mm hole-diameter saw blade(country specific)Mount the inner flange with its recessed side facingoutward onto the mounting shaft and then place sawblade (with the ring attached if needed), outer flangeand hex bolt.For tool without the ring► Fig.15: 1. Mounting shaft 2. Inner flange 3. Circularsaw blade 4. Outer flange 5. Hex boltFor tool with the ring► Fig.16: 1. Mounting shaft 2. Inner flange 3. Circularsaw blade 4. Outer flange 5. Hex bolt6. RingWARNING: BE SURE TO TIGHTEN THE HEXBOLT CLOCKWISE SECURELY. Also be carefulnot to tighten the bolt forcibly. Slipping your handfrom the hex wrench can cause a personal injury.WARNING: If the ring is needed to mount theblade onto the spindle, always be sure that thecorrect ring for the blade's arbor hole you intendto use is installed between the inner and the outerflanges. Use of the incorrect arbor hole ring mayresult in the improper mounting of the blade causingblade movement and severe vibration resulting inpossible loss of control during operation and in seri-ous personal injury.Blade guard cleaningWhen changing the circular saw blade, make sure toalso clean the upper and lower blade guards of accu-mulated sawdust as discussed in the Maintenancesection. Such efforts do not replace the need to checklower guard operation before each use.Hex wrench storageWhen not in use, store the hex wrench as shown in thefigure to keep it from being lost.► Fig.17: 1. Hex wrench