Makita RBC220 Manual De Instrucciones Original página 19

Idle adjustment
The cutter blade or the nylon cutting head should not run when the throttle lever is fully released. If necessary, adjust the idle rom using
the idle adjusting screw.
Checking the idling speed
e Idle speed should be set to 2,600 rpm.
If necessary correct it by means of the idle screw (the blade or
the string cutting head must not turn when the engine is on idle).
Screwing in of the screw (1) will cause an increase in the engine
speed, whereas backing off of the screw will reduce the engine
speed.
(1)
Resharpening the cutting tool A
CAUTION:
The cutting tools mentioned below must only be resharpened by
an authorized facility. Manual resharpening will result in imbalances
of the cutting tool causing vibrations and damage to the equipment.
e Star blade
Án expart resharpening and balancing service is provided by
Authorized Service Agent.
NOTE:
To increase the service life of the star blade it may be turned over
once until both cutting edges have become blunt.
Nylon cutting head
Most effective cutting area
The nylon cutting head is a dual grass trimmer head capable of both
automatic and bump & feed mechanisms.
The nylon cutting head will automatically feed out the proper length
of nylon cord by the changes in centrifugal force caused by
increasing or decreasing rpms. However, to cut soft grass more effi-
ciently, bump the nylon cutting head against the ground to feed out
extra cord as indicated under operation section.
Operation
— Increase the nylon cutting head speed to approx. 6,000 rpm. Low
speed (under 4,800 rpm) is not suitable, the nylon cord will not
feed out properly at low speed.
~ The most effective cutting area is shown by the shaded area.
lf the nylon cord does not feed out automatically, proceed as follows:
1. Release the throttle lever to run the engine idle and then Idle speed Full speed
squeeze the throttle lever fully. Repeat this procedure until the
nylon cord feeds out to the proper length.
2. If the nylon cord is too short to feed out automatically with the
above procedure, bump the knob of the nylon cutting head £
against the ground to feed out the nylon cord. — ME
3. If the nylon cord does not feed out with procedure 2, D
rewind/replace the nylon cord by following the procedures descri-
bed under "Replacing the nylon cord".
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