Makita RBC414U Instructions D'emploi D'origine page 17

NYLON CUTTING HEAD
The nylon cutting head is a dual line trimmer head that has bump & feed mechanism
or auto feed mechanism (ultra auto) (country specific).
The nylon cutting head with bump & feed mechanism feeds out the nylon cord after
tapping the trimmer head on the ground. The nylon cutting head with auto feed
mechanism automatically feeds out the nylon cord by the changes in centrifugal
force.
Operation
– The most effective cutting area is shown by the shaded area.
– To feed the nylon cord, increase the nylon cutting head speed to approx.
-1
6,000 min and tap the nylon cutting head lightly on the ground. With auto feed
mechanism, trigger action can feed the nylon cord.
– If the nylon cutting head does not feed out by tapping, rewind/replace the nylon
cord by following the procedures described under "Replacing the nylon cord."
Replacing the nylon cord (BUMP & FEED)
WARNING: Make sure that the cover of the nylon cutting head is secured to the
housing properly as described below. Failure to properly secure the
cover may cause the nylon cutting head to fly apart resulting in serious
personal injury.
Press inward on the housing latches and lift upward to remove the cover.
Discard any of the remaining nylon cord.
Hook the middle of the new nylon cord to the notch located at the center of the spool
between the 2 channels provided for the nylon cord. One side of the cord should be
about 80 mm longer than the other side.
Wind both ends firmly around the spool in the direction marked on the head for left
hand direction indicated by LH.
Wind all but about 100 mm of the cords, leaving the ends temporarily hooked
through a notch on the side of the spool.
Latches
For left hand
rotation
Notches
17
Most effective cutting area
Cover
Press Press
80 mm
100 mm
Spool