Makita DBC3310 Owner's And Safety Manual

Makita DBC3310 Owner's And Safety Manual Manual pdf 21 page image

21Replacing/cleaning thespark arrestor screen STOPJThe spark arrestor screen should be checked and cleanedregularly.- Remove the filter cover (see "Checking the muffler bolts").- Loosen the 2 screws (J/5) and remove the spark arrestorscreen.- Clean the spark arrestor screen with a soft brush.NOTE: Do not use sharp or pointed objects for screen clean-ing. Damaged or misformed screen wires may result.IMPORTANT: If the spark arrestor screen is damagedreplace it immediately!- Reassembly the spark arrestor screen and tighten thescrews.Weekly maintenanceInspecting and replacingthe spark plugCAUTION:NEVER touch the spark plug or spark plug cap while theengine is running (high voltage).Never do maintenance work with the engine running!A hot engine can cause severe burns. Wear protectivegloves!The spark plug must be replaced if the insulator is damagedor if the electrodes are severely eroded or dirty or oily.- Pull the spark plug cap (K/18) off the plug. Use only thecombination wrench supplied with the brushcutter toremove the spark plug.Note: Replace only with CHAMPION RCJ-6Y, BOSCH WSR6F or NGK BPMR 7A spark plugs!KElectrode gapThe electrode gap must be .020" - .030" (0.5 - 0.8 mm).Checking the ignition spark- Remove the spark plug. With the spark plug cable on, holdthe plug against the cylinder (but not near the spark plughole!) using insulated pliers.- Turn the on/off switch to “I” (on).- Pull the starter cable hard.A spark should be visible at the electrode gap.L191815STOP.020" - .030"(0.5 - 0.8 mm)Checking the mufflerboltsM20STOPCaution:Do not tighten the muffler bolts while the engine is hot!- Remove plug connector (K/18) and unscrew and removethe filter cover (K/15).- Loosen the four fixing bolts (K/19) of the cover and removeit.- Check the muffler bolts (M/20) for tightness using the Allenkey. If loose, tighten manually. Do not over-tighten.5