Stihl FG 2 User manual

13FG 2
English
BA_SE_145_001_01_01.fmPrinted on chlorine-free paper.
Printing inks contain vegetable oils; paper can be recycled.
© ANDREAS STIHL AG & Co. KG, 2003 0458 564 7721. M2. M3. T. Printed in Germany
STIHl
Contents
Guide to Using this Manual ............ 14
Safety Precautions ......................... 15
Application ...................................... 15
Mounting the Tool ........................... 16
Selecting and Fitting File ................ 17
Setting Up ....................................... 17
Adjustments .................................... 18
Sharpening ..................................... 20
Main Parts ...................................... 24
Dear Customer,
Thank you for choosing a quality
engineered STIHL product.
This machine has been built using
modern production techniques and
comprehensive quality assurance.
Every effort has been made to ensure
your satisfaction and troublefree use
of the machine.
Please contact your dealer or our
sales company if you have any
queries concerning your machine.
Hans Peter Stihl

14
English
FG 2
Pictograms
All the pictograms attached to the
machine are shown and explained in
this manual.
The operating and handling instructions
are supported by illustrations.
Symbols in text
The individual steps or procedures
described in the manual may be marked
in different ways:
:Step or procedure without direct
reference to an illustration.
Description of step or procedure that
refers directly to the illustration and
contains item numbers that appear in
the illustration.
Example:
Loosen the screw (1)
Lever (2) ...
In addition to the operating instructions,
this manual may contain paragraphs
that require your special attention. Such
paragraphs are marked with the
symbols described below:
Warning where there is a risk of an
accident or personal injury or
serious damage to property.
Warning where there is a risk of
damaging the machine or individual
components.
Note or hint which is not essential
for using the machine, but may
improve the operator’s under-
standing of the situation and result
in better use of the machine.
Note or hint on correct procedure in
order to avoid damage to the
environment.
Equipment and features
This instruction manual refers to
several models with different
features. Components that are not
installed in all models and related
applications are marked thus *.
Such components are available as
special accessories from your
STIHL dealer.
Engineering improvements
STIHL’s philosophy is to continually
improve all of its products. As a result,
engineering changes and improvements
are made from time to time. If the
operating characteristics or the
appearance of your machine differ from
those described in this manual, please
contact your STIHL dealer for
assistance.
Therefore, we cannot be responsible for
changes, modifications or
improvements not covered in this
manual.
Guide to Using this Manual

15FG 2
English
To reduce the risk of
personal injury, special
safety precautions must
be observed while
operating the filing tool.
Read the instruction
manual carefully and
keep it in a safe place for
later reference.
Wear gloves.
It is absolutely essential to comply with
the angles and dimensions specified in
these instructions. If the saw chain is
incorrectly sharpened – and in
particular if the depth gauges are set too
low – there is a risk of increased saw
kickback and personal injury.
Observing the safety precautions and
specifications in this manual and the
instruction manual of the saw model on
which the filing tool is mounted can help
reduce the risk of injury and damage to
the tool and saw.
The STIHL filing tool can be used to
sharpen all STIHL Oilomatic saw chains
with the exception of square ground
chains (RSL, RSLF, RSLH) and carbide-
tipped chains (RD, RDS).
File correctly
– Sharpen the chain frequently, take
away as little metal as possible –
two or three strokes of the file are
usually enough.
– Always file from the inside to the
outside of the cutter.
– The file only sharpens on the
forward stroke – lift the file off the
cutter on the backstroke.
– Avoid touching the tie straps and
drive links with the file.
Safety Precautions Application

16
English
FG 2
:Secure the base plate to the bench
using either the wood screws (A)
provided or the screw clamps (B)
available as special accessories.
:Place the chain rest (1) on the base
plate (2) – the clamping lever (3)
must face away from the bench.
:Make sure the studs (4) engage the
holes.
:Fit the hex head screw (5) through
the center hole from above.
:Fit and tighten down the wingnut (6)
firmly.
:Position the filing frame (7) on the
swivel arm (8) so that the stop pin
engages the slot.
:Tighten down the nut (9) firmly.
Mounting the Tool
564BA000 KN
A
B
44
564BA001 KN
1
2
3
6
5
564BA002 KN
9
87

17FG 2
English
Use only special saw chain sharpening
files. Other files have the wrong shape
and cut and are unsuitable for
sharpening saw chain.
:Select the round file (special
accessory) that matches the chain
pitch.
:Place the selected file (1) in the
filing frame.
:Tighten down the screws (2)
moderately.
Check the Saw Chain
:Replace any damaged or worn parts
of the chain and match the new
parts to the shape and size of the
original parts.
Clamping the Saw Chain
:Place the saw chain in the chain rest
– the cutting edges must point to the
right.
:Turn the clamping lever (1) to the
right – the longitudinal rib on the
clamping lever must face outwards.
:Tighten down the lock nut (2)
moderately until the chain is locked
in position.
:Turn the clamping lever to the left to
release the chain and to the right to
lock the chain.
Finding the Master Cutter
The shortest cutter is used as the master
cutter for filing all other cutters.
:Use a slide caliper to find the
shortest cutter and mark it, e.g. with
chalk.
Chain Pitch Round File Ø
inch mm mm inch
1/4 6.35 4.0 5/32
3/8 PMN 9.32 4.0 5/32
3/8 P 9.32 4.0 5/32
0.325 8.25 4.8 3/16
3/8 9.32 5.2 13/64
0.404 10.26 5.5 7/32
Selecting and Fitting File
564BA003 KN
1
22
Setting Up
1
564BA004 KN
2
523BA012 KN

18
English
FG 2
Turn the chain rest to suit the position of
the master cutter:
:Set the chain rest as shown in
illustration Aif the master cutter is in
the left-hand row.
:Set the chain rest as shown in
illustration Bif the master cutter is in
the right-hand row.
The sharpening procedure described
below assumes the master cutter is in
the left-hand row.
The procedure is the same if the master
cutter is in the right-hand row. Move the
chain rest to the position shown in
illustration B, reset the file, adjust angle.
Adjusting Filing Angle
:Check filing angle in the following
table.
:Swing the filing frame upwards.
:Loosen the nut (1).
:To rotate guide, lift it clear of the
teeth.
564BA005 KN
A
B
Chain Type Filing Angle
Rapid Standard (RC) 30 °
Rapid Micro (RM) 30 °
Rapid Super (RS) 30 °
Picco Micro (PM/PMN) 30 °
RCX, RMX, PMX
(ripping chain)
10 °
Adjustments
1
564BA006 KN
564BA007 KN

19FG 2
English
:Set the filing angle (2) – to sharpen
the left-hand row of cutters, turn the
guide to the right (clockwise).
:Tighten down the nut.
:Position the master cutter (3) below
the center of the nut (1).
Aligning the Filing Frame
:Position the round file (1) between
the side plate and depth gauge of
the master cutter by swinging and
lifting the filing frame.
:Turn the adjusting screw (2)
(counterclockwise to lower file –
clockwise to raise file) until about
1/10 of file diameter projects above
the top plate.
564BA008 KN
2
3
564BA009 KN
1
1
564BA010 KN
2
564BA011 KN
564BA028 KN
1/10 ø

20
English
FG 2
:Turn the knurled nut (3) until the
stop (4) butts against the back of the
cutter to be sharpened (master
cutter).
:Then turn the knurled nut a little
further until the side plate presses
against the file and the stop bar (6)
lifts about 0.1 to 0.2 mm away from
the stop roller (5).
:Turn the clamping lever (7) to the
right – the saw chain is locked in
position.
Sharpening the Master Cutter
Sharpen the master cutter with 2 to 3
firm strokes of the file, from the inside to
the outside of the side plate.
:After sharpening, the stop bar (1)
should butt against the stop
roller (2).
If this is not the case, readjust the
stop (3) slightly and move the chain
up against it – check the stop
position again.
4
3
7
564BA012 KN
56
56
Sharpening
1
2
3
564BA013 KN
21

21FG 2
English
Sharpening the Next Cutter
Use the setting for the master cutter to
sharpen all the other cutters in the row.
:Open the clamping lever.
:Pull the chain along to the next
cutter in the row – push cutter
against the stop.
Make sure the stop (3) always
locates properly against the back of
the cutter to be sharpened.
:Close the clamping lever.
:Sharpen the cutter.
:Repeat the procedure until all
cutters in one row have been
sharpened.
Sharpening the Second Row of
Cutters
:Swing the filing frame upwards and
loosen the nut (1).
:Lift the guide clear of the teeth and
turn it to the same filing angle on the
opposite side.
:Tighten down the nut.
:Turn the chain rest 180°, as
described under "Setting Up".
:Reset the file.
:Swing the filing frame down.
:Position the round file between the
side plate and depth gauge of the
first cutter in the second row.
564BA014 KN
3
1
564BA006 KN
564BA007 KN
564BA015 KN

22
English
FG 2
:Sharpen the first cutter in the
second row.
:Check the cutter length (A).
:If it differs from the length of the
master cutter, move the stop (3)
forwards or backwards, resharpen
and check length (A) again.
:If the length is correct, sharpen all
cutters in the second row using this
setting.
Depth Gauges
:Select the filing gauge (special
accessory) that matches the chain
pitch.
:Place the selected filing gauge
on the chain. If the depth gauge
projects above the filing gauge, it
has to be lowered.
:Set the filing angle on the guide
to 0°.
:Fit triangular file (special accessory)
in place of the round file.
:Pull chain along until a depth gauge
is under the file.
:Adjust the stop (3) so that the file (2)
does not touch the cutting edge.
564BA016 KN
A
564BA023 KN
3
Chain Pitch Filing Gauge
inch mm Part No.
1/46.35 1110 893 4000
3/8PMN 9.32 0000 893 4000
3/8P 9.32 1110 893 4000
0.325 8.25 1110 893 4000
3/89.32 1110 893 4000
0.404 10.26 1106 893 4000
564BA017 KN
564BA018 KN
3035
564BA019 KN
33
2

23FG 2
English
:Adjust height adjusting screw (4) so
that the depth gauge is filed back to
the required height (flush with the
gauge). Then remove the filing
gauge and file down all depth
gauges to the same setting.
:Finish off by filing the slope by hand,
parallel to the service mark (see
arrow) – take care not to lower the
highest point of the depth gauge in
this process.
:Place the filing gauge on the chain –
the highest point of the depth gauge
must be flush with the filing gauge.
The risk of the saw kicking back
increases if the depth gauges are
set too low.
:Lubricate the guide with oil at
regular intervals.
Rotate the file at regular intervals
while filing to avoid one-sided wear.
564BA020 KN
4
564BA026 KN
564BA025 KN
564BA024 KN
Oil

24
English
FG 2
1 Adjusting screw
2 Guide
3 Filing frame
4 Stop rail
5 Nut
6 File
7 Clamping lever
8 Knurled nut
9 Stop
10 Chain rest
11 Base plate
12 Lock nut
13 Wingnut
14 Screw
Main Parts
564BA021 KN
7
6
1
3
4
5
2
564BA022 KN
10
13
12
11 14
9
8