English
13
Spark plug (Fig. 33)
The
spark
plug
condition
is
in
fl
uenced
by:
○
An
incorrect
carburetor
setting.
○
Wrong
fuel
mixture
(too
much
oil
in
the
gasoline)
○
A
dirty
air
fi
lter.
○
Hard
running
conditions
(such
as
cold
weather).
These
factors
cause
deposits
on
the
spark
plug
electrodes,
which
may
result
in
malfunction
and
starting
di
ffi
culties.
If
the
engine
is
low
on
power,
di
ffi
cult
to
start
or
runs
poorly
at
idling
speed,
always
check
the
spark
plug
fi
rst.
If
the
spark
plug
is
dirty,
clean
it
and
check
the
electrode
gap.
Readjust
if
necessary.
The
correct
gap
is
0.6
mm.
The
spark
plug
should
be
replaced
after
about
100
operation
hours
or
earlier
if
the
electrodes
are
badly
eroded.
NOTE
In
some
areas,
local
law
requires
using
a
resistor
spark
plug
to
suppress
ignition
signals.
If
this
machine
was
originally
equipped
with
resistor
spark
plug,
use
same
type
of
spark
plug
for
replacement.
Oiler port (Fig. 34)
Clean
the
chain
oiler
port
(39)
whenever
possible.
Guide bar (Fig. 35)
Before
using
the
machine,
clean
the
groove
and
oiler
port
(40)
in
the
bar
with
the
special
gauge
o
ff
ered
as
an
optional
accessory.
Side case (Fig. 36)
Always
keep
the
side
case
and
drive
area
clean
of
saw
dust
and
debris.
Periodically
apply
oil
or
grease
to
this
area
to
protect
from
corrosion
as
some
trees
contain
high
levels
of
acid.
Fuel
fi
lter (Fig. 37)
Remove
the
fuel
fi
lter
from
the
fuel
tank
and
thoroughly
wash
it
in
solvent.
After
that,
push
the
fi
lter
into
the
tank
completely.
NOTE
If
the
fi
lter
is
hard
due
to
dust
and
dirt,
replace
it.
Chain oil
fi
lter (Fig. 38)
Remove
the
oil
fi
lter
and
thoroughly
wash
it
in
solvent.
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.
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
(43)
from
inside
the
air
fi
lter
cover
and
reinstall
it
in
winter
time
position
(45)
by
turning
half-way.
This
will
allow
heated
air
to
fl
ow
from
cylinder
side
to
carburetor
cabin
through
the
opening
(42).
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
(44).
○
When
the
unit
is
used
in
very
cold
weather,
it
is
advisable
to
cover
the
slits
of
the
halfway
down
of
recoil
starter
side
with
glue
tape
(46)
so
that
snow
dust
will
not
get
into
fancase.
(
Fig. 40
).
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.
Working
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
(61)
and
top
plate
(62))
of
cutter.
(
Fig. 47
)
SHARPENING ANGLES FOR SHARPENING SAW CHAIN
1.
Part
Number
91VP
/
95VPX
2.
Pitch
0.325"
3.
Depth
Gauge
Setting
0.025"
4.
Side
Plate
Filing
Angle
85°
5.
Top
Plate
Angle
30°
6.
File
Guide
Angle
10°
Maintenance schedule
Below
you
will
fi
nd
some
general
maintenance
instructions.
For
further
information
please
contact
Tanaka
dealer.
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
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.
Weekly maintenance
○
Check
the
recoil
starter,
especially
cord
and
return
spring.
○
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.
○
Check
that
the
air
intake
at
the
recoil
starter
is
not
clogged.
○
Clean
the
air
fi
lter.
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.
000Book̲ECV-3801̲Kor.indb 13
000Book̲ECV-3801̲Kor.indb 13
2013/06/26 10:27:32
2013/06/26 10:27:32
