Top:
RI.
position for Rapld-slandard, Rapid-Micro
and
T
o pic~M
i
cro
Bottom:
Sh""",ning with
file
ho
lde
r
..
,.
i
cutter heights will be uneven
~
the
cutter
lengths are diffe-
rent. If the cutters are
not
all the same height
the
chaln will
run roughly and eventually break.
I's
~
is
very Important
to
.achieve unijonm
cutler
lengths,
~
is
best
to
measure them with a slide caliper. Find and shar-
pen
the
shortest cutter first and then use
~
as a master
for
all the others,
J.
e.
all cutlers must
be
filed back
to
the
same length as
the
mester cutler. Sharpen all
the
cutters
on one side
of
the
chaln first and then repeat the proce-
dure
on
the
other
side.
The file must
be
held level
for
Rapld-standard,
Rapid-
File
positi
on
tor
Aapid-5u
pe
r
and
Toplc·Super
-
to'
Micro
and
Topic-Micro
chain
so
that
~
is
at
90'
to
the
perpendicular faces
of
the chaln 'Iinks
or
the guide bar,
On
Rapid-Super
and
Topic-Super
chains
the
file must
be
gulded'so that the handle
Is
10'
lower
than
the
tip
of
the
file,
i.
e. In this case
the
file
must
run upward
at
an angle
of
10
'
to
the horizontal. A filing aid (file holder, filing
too~
must
always be used
for
sharpening Rapid-Super
and
Toplc-Su-
per chains.
File evenly and steadily and
note
that
the
file
only
shar-
pens
on
the
forward
stroke-
Uft
the
file
off
the
cutter
on
the backstroke. Make sure you
do
not
touch
the tie straps
and drive links with the
fi
le. Use a piece
of
hardwood
to
re-
move bunrs from
the
cutting edge.
Importam:
Sharpen the chain frequemly
and
take away
as little material as possible. Two or'three strokes of
the
file
are usually
suffc
i
em
to
the
keep
the
chain sharp. varia-
tions
In
angles and
the
lengths
of
the
cutlers
cannot be
completely avoided during manual sharpening. For this
reason the chaln should
be
restored
to
~
Orig
inal condi-
tion with a workshop
cha
in sharpener (STIHL USG,
SnHL
FG
2)' after
rt
has been resharpened
about
five times by
hand.
41
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