Makita EA3500S Original Instruction Manual

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Makita EA3500S Original Instruction Manual Manual pdf 26 page image

26(see “Checking the chain tension”).7-5. Cleaning the air filter (Fig. 69)CAUTION: To prevent eye injury, always wear eyeprotection when cleaning the filter with compressed air!Do not use fuel to clean the air filter.Insert the universal wrench vertically through the slotted plug(*).Loosen the screw (1) counter-clockwise and remove the hood(2).Push up the combination switch (3) (Choke position) toprevent dirt particles from falling into the carburetor.Pull the air filter cover tab (4) slightly in the direction of thearrow, and remove the air filter cover.Remove the air filter (5).IMPORTANT: Cover the intake opening with a clean cloth toprevent dirt particles from getting into the carburetor.If the filter is very dirty, clean it in lukewarm water withdishwashing detergent.Let the air filter dry completely.If the filter is very dirty, clean it frequently (several timesa day), because only a clean air filter provides full enginepower.CAUTION:Replace damaged air filters immediately.Pieces of cloth or large dirt particles can destroy theengine!(Fig. 70)Insert the air filter (5).Put on the air filter cover.Note: The air filter cover tab (4) will engage automatically ifthe air filter cover is properly positioned.Push down the combination switch (3) and press the throttle(6) all the way down one time in order to deactivate thethrottle lock.Put on the hood (2). When doing so make sure that the lowerpins (7) on both sides of the hood engage properly (whencorrectly assembled, the pins should not be visible).Tighten screw (1) clockwise.7-6. Replacing the spark plug (Fig. 71)CAUTION:Do not touch the spark plug or plug cap if the engine isrunning (high voltage).Switch off the engine before starting any maintenancework. A hot engine can cause burns. Wear protectivegloves!The spark plug must be replaced in case of damage to theinsulator, electrode erosion (burn) or if the electrodes are verydirty or oily.Remove the filter cover (see “Cleaning the air filter”).Pull the plug cap (8) off the spark plug. Use only thecombination wrench supplied with the saw to remove thespark plug.Electrode gapThe electrode gap must be 0.6 mm.CAUTION: Use only the following spark plugs: NGK CMR6A.7-7. Checking the ignition spark (Fig. 72)Press the loosened spark plug (9) with the ignition cablefirmly connected against the cylinder using insulated pliers(not near the spark plug opening).Put combination switch (10) in the “ON” position.Pull the starter cable hard.If the function is correct, an ignition spark must be visible nearthe electrodes.7-8. Checking the muffler screws (Fig. 73)Unscrew 3 screws (11) and remove the upper half of themuffler (12).Note: For saw models with catalytic converters (EA3500S,EA3501S), remove the converter along with the upper mufflerhalf.The screws on the bottom muffler half (13) are nowaccessible, and it is possible to check them for tightness.If they are loose, tighten by hand (Caution: do not over-tighten).7-9. Replacing/cleaning the spark arresterscreen (country specific) (Fig. 74)The spark arrester screen should be checked and cleanedregularly.Unscrew 3 screws (11) and remove the upper half of themuffler (12) and then the spark arrester screen (14).Caution: Do not use sharp or pointed objects for screencleaning. Damaged or misformed screen wires may result.Reassemble the spark arrester screen and the upper mufflerhalf, and then tighten the screws.7-10. Replacing the starter cable/ Replacingthe return spring pack/Replacing the starterspring (Fig. 75)Unscrew three screws (1).Remove fan housing (2).Remove the air guide (3) from the fan housing.CAREFUL! Injury hazard! Do not unscrew screw (7) if thereturn spring is under tension.If the starter cable is to be replaced although it is not broken,it will be necessary to first de-tension the cable drum returnspring (13).To do this, use the grip to pull the cable all the way out of thefan housing.Hold the cable drum with one hand, and with the other pushthe cable into the space (14).Carefully let the drum turn until the return spring is no longerunder tension.Unscrew screw (7) and remove the driver (8) and spring (6).Carefully remove the cable drum.Remove any cable pieces.Thread a new cable (dia. 3 mm, length 900 mm) as shownin the illustration (don’t forget the washer (10)) and knot bothends as shown.Pull knot (11) into the cable drum (5).Pull knot (12) into the starter grip (9).Put the drum on its spindle and turn it slightly until the returnspring engages.Place the spring (6) in the driver (8) and place them togetherin the cable drum (5) while turning slightly counter-clockwise.Insert screw (7) and tighten.Guide the cable into the slot (14) on the cable drum and turnthe drum with the cable clockwise three times.