3. Installation (Fig. 8)
○
Install cutting head on gear case of grass
trimmers/brush cutters. The mounting nut (7) is
left-hand-threaded. Turn clockwise to loosen/
counterclockwise to tighten.
8
7
Fig. 8
NOTE
○
Since the cutter holder cap is not used here, keep
it for when a metal blade is used, if so equipped.
○
Insert Allen wrench (8) into the hole of the gear
case in order to lock the cutter holder.
Installation
of
cutting
blade
(Fig.
9)
(If so equipped)
When installing a cutting blade, make sure that there
are no cracks or any damage to it and that the cutting
edges are facing the correct direction.
11
12
10
13
9
Fig. 9
NOTE
○
When installing cutter holder cap (9), be sure to
set concave side upward.
Insert the allen wrench (10) into the hole of the
angle transmission in order to lock the cutter
holder (11). Please note that the cutter
fi
xing bolt
or nut (12) has left-handed threads, (clockwise to
loosen/counter-clockwise to tighten). Tighten the
fi
xing bolt or nut with the box wrench.
○
If your unit is of a nut securing type and equipped
with a cotter pin, the blade must be retained with a
new cotter pin (13) each time installed.
CAUTION
●
Before
operation,
make
sure
the
blade
has
been
properly
installed.
●
If
your
unit
is
equipped
with
protection
cover
under
a
cutting
blade,
check
it
for
wear
or
cracks
before
operation.
If
any
damage
or
wear
is
found,
replace
it,
as
it
is
an
article
of
consumption.
Installation
of
the
BRAIN
cutting
head
NOTE
For installation see your BRAIN owner’s manual,
provided with the BRAIN cutting head.
WARNING
For
HITACHI
BRAIN
heads
or
HITACHI
alloy
head,
use
only
fl
exible,
non-metallic
line
recommended
by
the
manufacturer.
Never
use
wire
or
wire
ropes.
They
can
break
o
ff
and
become
a
dangerous
projectile.
NOTE
When using HITACHI alloy head (CH-100), initial
cutting line length should be about 6-11/16
˝
(17 cm) each. (Fig. 10)
6-11/16
˝
(17 cm) 6-11/16
˝
(17 cm)
CH-100
Fig. 10
OPERATING
PROCEDURES
Engine
oil
○
Always use the speci
fi
ed engine oil (multigrade oil
of classi
fi
cation SAE 10W-30). Insu
ffi
cient engine
oil or using engine oil other than the speci
fi
ed type
may cause breakdown of the unit.
Filling
up
with
engine
oil
○
Place the unit horizontally on a clean,
fl
at surface.
○
Remove the oil cap and check whether the engine
oil comes up to the mouth of the oil tank opening.
(Fig. 11)
8
English
000Book̲CG25EUS̲US.indb 8
000Book̲CG25EUS̲US.indb 8
2009/12/26 9:20:53
2009/12/26 9:20:53
