13
English
Icing
protection
system
(Fig.
39,
40)
This
system
is
to
protect
carburetor
from
icing
when
the
unit
is
operated
in
winter
time.
1.
When
you
need
icing
system
work,
remove
air
fi
lter
cover
(41).
Pull
out
the
shutter
(45)
from
inside
the
air
fi
lter
cover
and
reinstall
it
in
winter
time
position
by
turning
half-way.
(
Fig.
39
)
This
will
allow
heated
air
to
fl
ow
from
cylinder
side
to
carburetor
cabin
through
the
opening
(46).
NOTE
When
winter
time
has
been
over
and
carburetor
will
not
su
ff
er
from
icing,
make
sure
that
the
shutter
is
reinstalled
in
ordinary
position
(
Fig.
40
).
For
long-term
storage
Drain
all
fuel
from
the
fuel
tank.
Start
and
let
engine
run
until
it
stops.
Repair
any
damage
which
has
resulted
from
use.
Clean
the
unit
with
a
clean
rag,
or
the
use
of
high
pressure
air
hose.
Put
a
few
drops
of
two-cycle
engine
oil
into
the
cylinder
through
the
spark
plug
hole,
and
spin
the
engine
over
several
times
to
distribute
oil.
Cover
the
unit
and
store
it
in
a
dry
area.
CHAIN
SHARPENING
Parts
of
a
cutter
(Fig.
41,
42)
WARNING
○
Gloves
should
be
used
when
sharpening
chain.
○
Be
sure
to
round
o
ff
the
front
edge
to
reduce
the
chance
of
kickback
or
tie-strap
breakage.
47.
Top
plate
48.
Cutting
corner
49.
Side
plate
50.
Gullet
51.
Heel
52.
Chassis
53.
Rivet
hole
54.
Toe
55.
Depth
gauge
56.
Correct
angle
on
top
plate
(degree
of
angle
depends
on
chain
type)
57.
Slightly
protruding
“hook”
or
point
(curve
on
non-chisel
chain)
58.
Top
of
depth
gauge
at
correct
height
below
top
plate
59.
Front
of
depth
gauge
rounded
o
ff
LOWERING
DEPTH
GAUGES
WITH
A
FILE
1)
If
you
sharpen
your
cutters
with
a
fi
le
holder,
check
and
lower
the
depth.
2)
Check
depth
gauges
every
third
sharpening.
3)
Place
depth
gauge
tool
on
cutter.
If
depth
gauge
projects,
fi
le
it
level
with
the
top
of
the
tool.
Always
fi
le
from
the
inside
of
the
chain
toward
an
outside
cutter.
(
Fig.
43
)
4)
Round
o
ff
front
corner
to
maintain
original
shape
of
depth
gauge
after
using
depth
gauge
tool.
Always
follow
the
recommended
depth
gauge
setting
found
in
the
maintenance
or
operator
manual
for
your
saw.
(
Fig.
44
)
GENERAL
INSTRUCTIONS
FOR
FILING
CUTTERS
File
(60)
cutter
on
one
side
of
the
chain
from
the
inside
out.
File
on
forward
stroke
only.
(
Fig.
45
)
5)
Keep
all
cutters
the
same
length.
(
Fig.
46
)
6)
File
enough
to
remove
any
damage
to
cutting
edges
(side
plate
(62)
and
top
plate
(63))
of
cutter.
(
Fig.
47
)
NOTE
Do
not
fi
le
or
alter
the
tops
of
bumper
drive
links
(61).
(
Fig.
46
).
SHARPENING
ANGLES
FOR
SHARPENING
SAW
CHAIN
1.
Part
Number
95VPX/20BPX
2.
Pitch
0.325”
3.
Depth
Gauge
Setting
0.025"
85°
4.
Side
Plate
Filing
Angle
85°
5.
Top
Plate
Angle
30°
100°
6.
File
Guide
Angle
100°
Maintenance
schedule
Below
you
will
fi
nd
some
general
maintenance
instructions.
For
further
information
please
contact
Hitachi
Authorized
Service
Centers.
Daily
maintenance
○
Clean
the
exterior
of
the
unit.
○
Clean
the
chain
oil
fi
lter
port.
○
Clean
the
groove
and
oil
fi
lter
port
in
the
guide
bar.
○
Clean
the
side
case
of
saw
dust.
○
Check
that
the
saw
chain
is
sharp.
○
Check
that
the
bar
nuts
are
su
ffi
ciently
tightened.
○
Make
sure
that
the
chain
transport
guard
is
undamaged
and
that
it
can
be
securely
fi
tted.
○
Check
that
nuts
and
screws
are
su
ffi
ciently
tightened.
Especially
inspect
the
bolt
of
mu
ffl
er
and
ensure
that
they
are
properly
tightened
before
starting
engine.
Should
any
of
the
bolts
be
loose,
retighten
them
immediately.
Failure
to
do
so
could
result
in
serious
hazard.
○
Check
the
tip
of
the
guide
bar.
Please
exchange
it
for
the
new
one
when
it
is
worn
out.
○
Check
the
band
of
chain
brake.
Please
exchange
it
for
the
new
one
when
it
is
worn
out.
○
Clean
the
air
fi
lter.
Weekly
maintenance
○
Check
the
recoil
starter,
especially
cord.
○
Clean
the
exterior
of
the
spark
plug.
○
Remove
the
spark
plug
and
check
the
electrode
gap.
Adjust
it
to
0.6
mm
or
change
the
spark
plug.
○
Clean
the
cooling
fi
ns
on
the
cylinder
and
check
that
the
air
intake
at
the
recoil
starter
is
not
clogged.
Monthly
maintenance
○
Rinse
the
fuel
tank
with
gasoline,
and
clean
fuel
fi
lter.
○
Clean
chain
oil
fi
lter.
○
Clean
the
exterior
of
the
carburetor
and
the
space
around
it.
○
Clean
the
fan
and
the
space
around
it.
NOTE
When
ordering
the
parts
to
your
nearest
dealer,
please
use
the
item
numbers
showing
on
the
parts
breakdown
section
in
this
instruction.
BAR
NO.
LENGTH-
TYPE
CHAIN
NO.
MODEL
NO.
OREGON
160MLBK041
180MLBK041
200PXBK041
16”
18”
20”
95VPX-66
95VPX-72
20BPX-78
000Book̲CS51EAP̲WE.indb 13
000Book̲CS51EAP̲WE.indb 13
2012/03/16 16:01:22
2012/03/16 16:01:22