Makita DBC260U Original Instruction Manual

Also see for DBC260L: Original instruction manual

Contents

15ADJUSTMENT OF LOW-SPEED REVOLUTIONS (IDLING)The cutter blade or the nylon cutting head should not rotate when the controllever is fully released. If necessary, adjust the idling rpm using the idlingadjustment screw.Checking the Idling speed– The idling speed should be set to 3,000 min-1 .If necessary, adjust the idling speed using the idling screw (the blade or thenylon cutting head must not turn when the engine is idling).Tightening the idling screw (1) increases the engine revolutions, whereasloosening the idling screw reduces the engine revolutions.CAUTION: The cutting tools listed below must only be resharpened by anauthorized facility. Manual resharpening will result in imbalances ofthe cutting tool, which will cause vibrations and damage to theequipment.– cutter blade (star blade (4 teeth), eddy blade (8 teeth))A professional resharpening and balancing service is provided by AuthorizedService Agents.NOTE: To increase the service life of the cutter blade (star blade, eddy blade)the blade may be turned over to allow both cutting edges to wear.NYLON CUTTING HEADThe nylon cutting head is a dual string trimmer head capable of both automaticand bump & feed mechanisms.The nylon cutting head will automatically feed out the proper length of nylon cordby the changes in centrifugal force caused by increasing or decreasing rpms.However, to cut soft grass more efficiently, bump the nylon cutting head againstthe ground to feed out extra cord as shown in operation section.Operation– Increase the nylon cutting head speed to approx. 6,000 min -1.Nylon cord will not feed out correctly at lower speeds (under 4,800 min-1).– The most effective cutting area is shown by the shaded area in the diagram tothe right.If the nylon cord does not feed out automatically, follow the instructions below:1. Release the throttle lever so that the engine idles, and then squeeze thethrottle lever fully. Repeat this procedure until the nylon cord feeds out to theproper length.2. If the nylon cord is too short to feed out automatically using the procedureabove, bump the knob of the nylon cutting head against the ground to feedout the nylon cord.3. If the nylon cord does not feed out using procedure 2, rewind/replace thenylon cord by following the procedures described under “Replacing the nyloncord”.Replacing the nylon cord– Stop the engine.– Press the housing latches inward to lift off the cover, then remove the spool.Resharpening the cutting tool(1)Slow HighMost effective cutting areaKnobIdle speed Full speedCoverLatchesPressPress