8. MaintenanceEvery Every Every25 50 100System/components Procedure Beforehours hours hours Noteuseafter after afterfuel leaks, fuel spillage wipe outfuel tank, air filter, fuel filter inspect/clean replace, if necessaryroterubracecalpergnitsujdaeesidle adjusting screw rassecenfideepsgnildi ymm7.0~6.0:PAGtsujdaerdnanaelcspark plug rpaggulp eplace, if necessaryintake air cooling vent cleanthrottle trigger, stop switch check operationclean take it to a service dealercutting parts if something is wronggear case greasescrews/nuts/bolts tighten/replace not adjusting screwsplate receive make sure to attachENIGNEREMMIRTWARNING• Make sure that the engine has stopped and is coolbefore performing any service to the machine. Con-tact with moving cutting head or hot muffler mayresult in a personal injury.BLADE• Clean any resin and plant reside from the blade be-fore and after using the machine.• Check the cutting edges and reform with a flat file.WARNING• Make sure that the blade bolts are well tightened.• The blade assembly is designed to automaticallycompensate for any play between the blades.Point :1. Keep the end corner sharp.2. Round the root of the edge.3. Do not use water when using a grinder.IMPORTANTWhen mounting the blade, make sure to fasten thespacer, washer and bolt, then fasten the nut.SHARPENINGAlways keep the file or sharpener at an angle of 45° tothe blade, and:• Always grind in the direction of the cutting edge;• Note: files cut only in one direction; lift the file fromthe blade when returning to start a new pass;• Remove all burr from the edge of the blade with a slipstone;• Remove as little material as possible;• Before refitting the sharpened blades, remove filingsand then apply grease.Do not try to sharpen a damaged blade, replace it.10