14– Feed the cords through the slits to come out of the housing.Mount the washer, spring, and spool in the housing.– Align the hooks on the cover and the housing.Then push cover firmly onto the housing to secure it.Servicing instructionsCAUTION: Before performing any type of maintenance work on the string trimmer, always switch off the motor and detach the plug cap from thespark plug (see “checking the spark plug”).Always wear protective gloves.CAUTION: Never remove the recoil starter yourself. Doing so may cause an accident. This procedure should only be performed by anauthorized service center.To ensure a long service life and to avoid any damage to the equipment, perform the following maintenance operations regularly.Daily inspection and maintenance– Before operation, check the equipment for loose screws or missing parts. Pay particular attention to the tightness of the cutter blade or nyloncutting head.– Before operation, always check to make sure that the cooling air passage and cylinder fins are not clogged.Clean them if necessary.– Perform the following maintenance operations daily after use:• Clean the string trimmer externally and inspect it for damage.• Clean the air filter. When working under extremely dusty conditions, clean the filter several times a day.• Check the blade or the nylon cutting head for damage and make sure it is firmly mounted.• Check that there is sufficient difference between the idling and operating speeds to ensure the cutting tool is at a standstill while the engineis idling (if necessary, reduce the idling speed).If the cutting tool continues to rotate during engine idling, consult your nearest Authorized Service Agent.– Check that the Start-Stop Switch, the lock-off lever, the control lever, and the lock button are all functioning correctly.SERVICING INSTRUCTIONS(1)(2)(3)(4)Cleaning the air cleaner (filter)– Turn the choke lever (4) to the fully closed side, and keep the carburetoraway from any dust or dirt.– Remove the screw (1).– Remove the air cleaner cover (3).– Remove the sponge element (2), wash it in lukewarm water and dry itcompletely.– After cleaning, put back the air cleaner cover (3) and fasten it with screw (1).NOTE: If there is excessive dust or dirt adhering to the air cleaner, clean itevery day. A clogged air cleaner may make it difficult or impossible tostart the engine or increase the engine rotational speed.