16 ENGLISHCAUTION: Be careful not to injure yourselfwith the cutter mounted on the protector.NOTE: The cutter on the protector keeps the nyloncord best length for cutting.For EM403MP and EM404MPTo install the protector extension, insert the protectorextension to the protector and then snap the clips on.Make sure that the tabs on the protector extension fitinto the slots on the protector.► Fig.7: 1. Protector (universal type) 2. Clip3. Protector extension 4. Cutter (inside)5. Slot 6. TabTo remove the protector extension from the protector,unclasp the clips and pull the protector extension out.CAUTION: Make sure to push in the protec-tor extension until it is fully inserted. Otherwisethe protector extension may fall and result in personalinjury.CAUTION: Be careful not to injure your-self with the cutter mounted on the protectorextension.NOTE: The cutter on the protector extension keepsthe nylon cord best length for cutting.Installing the cutting toolCAUTION: Be sure to use genuine MAKITAcutting tools.CAUTION: Be sure to remove the hexwrench after installation.NOTE: When installing the cutting tool, turn the toolupside down for ease of the procedure.Installing the metal bladeFor EM403MP and EM404MPCAUTION: When handling the metal blade,always wear gloves and put the blade cover onthe blade.CAUTION: The outside diameter of the metalblade must be 230 mm (9″). Never use any bladeslarger than 230 mm (9″) in outside diameter.CAUTION: The metal blade must be wellpolished, free of cracks or breakage. If the metalblade hits against a stone during operation, stopthe motor and check the blade immediately.CAUTION: Polish or replace the metal bladeevery three hours of operation.CAUTION: Always use the suppliedwrench(es) to remove or to install the blade.Applicable bladeMetal blade (2-tooth)Metal blade (3-tooth)Metal blade (4-tooth)Metal blade (8-tooth)1. Insert the receive washer into the shaft.2. Insert the hex wrench through the hole in the gearcase to lock the shaft. Rotate the shaft until the hexwrench is fully inserted.3. Mount the metal blade onto the receive washer.4. Install the clamp washer and cup, and then tightenthe nut securely.Tightening torque: 16 - 23 N•m5. Remove the hex wrench.► Fig.8: 1. Nut 2. Cup 3. Clamp washer 4. Metal blade5. Receive washer 6. Shaft 7. Hex wrench► Fig.9: 1. Socket wrench 2. Hex wrench 3. TightenMake sure that the arrows on the blade and protectorindicate the same way.► Fig.10To remove the metal blade, follow the installation proce-dure in reverse.NOTE: The resin part on the blade fastening nutwears out in course of time. Replace the nut if thereappears any wear or deformation.Installing the nylon cutting headCAUTION: If the nylon cutting head hitsagainst a stone during operation, stop the motorand check the nylon cutting head immediately.1. Put the receive washer on the shaft.2. Insert the hex wrench through the hole in the gearcase.3. Screw the nylon cutting head onto the shaft.4. After installing nylon cutting head, remove the hexwrench.► Fig.11: 1. Nylon cutting head 2. Receive washer3. Shaft 4. Hex wrench 5. Tighten