Makita EK7300 Instruction Manual

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21CAUTION:Turn off the engine before cleaning the air filter! Never clean out the air filter with compressed air! Do not clean thepre-fi lter and inner fi lter with fuel.The service life of the engine depends on the condition and regular maintenance of the filter elements. Failure toperform maintenance and cleaning at the prescribed intervals will cause increased wear inside the engine!If the air fi lter becomes damaged, replace immediately! Pieces of cloth or large dirt particles can destroy the engine!Do not work in dusty conditions when it can be avoided! The fi ne dust generated when dry-cutting concrete and stoneis hazardous to the health of the operator and also shortens the service life of the engine. Whenever possible, wet-cutwith water when working in concrete and stone, to bind the dust.Pre-filterIf the pre-filter (1, Order No. 395 173 081) is dirty, wash it outin lukewarm water with standard dishwashing liquid.Rinse out pre-filter thoroughly in running water.Let the pre-filter dry thoroughly.NOTE: The pre-filter must be cleaned daily, or several timesdaily if working under dusty conditions. If cleaning is notpossible on-site, have spare pre-filters on hand. Replace thepre-filter at least every 25 operating hours.To insert the pre-filter in the filter cover (4), position it so it fitsthe space in the cover and then press it in (5). The pre-filtermust fit completely and cover all parts of the filter space,without leaving any spaces unfiltered.Inner fi ltersWash out the dirty inner filter (3, Order No. 395 173 020) inlukewarm soapy water with regular dishwashing liquid.Let the inner filter dry thoroughly.Air fi lter insertThe air filter insert (2, Order No. 395 173 011) filters the in-take air through a very fine paper filter lamella system. Forthe reason the cartridge must never be washed. Clean theair filter insert once a week.To clean the air filter insert, spread it out slightly and care-fully tap it against a clean surface.Replace the air filter insert every 100 operating hours.Replace it immediately if there is a drop in power, drop inspeed, or smoke in the exhaust.Before installing the filter system, check the intake openingto make sure no dirt particles have fallen in. If they have,remove them.