Makita RBC421L Instruction Manual

Also see for RBC421L: Original instruction

Contents

Makita RBC421L Instruction Manual Manual pdf 15 page image

15– Firmly hold the clutch case by your left hand, as illustrated.– Slowly pull the starter grip until resistance is felt and continue with a smartpull.– Do not pull out the starter rope to its full extent and do not allow the starterhandle to be retracted without control, but ensure that it is retracted slowly.– Repeat the starting operation until initial ignitions are heard.– Depress the choke lever ( ) and pull the starter rope again until theengine starts.– As soon as the engine starts, immediately tap and release the throttle, thusreleasing the half-throttle lock so that the engine can run in idle.– Run the engine for approximately one minute at a moderate speed beforeapplying full throttle.Caution during operation:If the control lever is opened fully in a no-load operation, the engine rotation is increased to 10,000 min-1 or more. Never operate the engine ata higher speed than required and at an approximate speed of 6,000 - 8,000 min-1.Starting the warm engine– Same as above, except without moving the choke lever (choke lever remainsin the down position).Stopping– Release the control lever (3) fully, and when the engine rpm has lowered,push the I-O switch (1) to “O” position the engine will now stop.IDLE ADJUSTMENT– Never attempt to make engine adjustments while the unit is running andstrapped to the operator. Always make engine adjustments with the unitresting on a flat, clear surface.The cutter blade or the nylon cutting head should not run when the control leveris fully released. If necessary, adjust the idle rpm using the idle adjustingscrew.Checking the Idle speed– Idle speed should be set to 2,600 min-1.If necessary correct it by means of the idle adjustment screw (the blade orthe nylon cutting head must not turn when the engine is on idle.)Turning in the screw clockwise will cause an increase in the engine speed,whereas turning the screw counterclockwise will reduce the engine speed.(3)(1)