Stihl HT 73 Manual De Instrucciones. Manual Del Usuario página 34

90°
85° 70°
80°
60°
30° 35°
10° 0°
For checking angles
STIHL filing gauge – Part No.
0000 893 4000 – A universal tool for
checking the filing and side plate angles,
depth gauge setting and cutter length.
Also cleans the guide bar groove and oil
inlet hole.
File correctly
:
If you use the FG 2 or USG:
Remove the chain from the bar and
sharpen according to instructions
supplied with the tool.
:
Sharpen 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.
HT 73
:
The file only sharpens on the
forward stroke – lift the file off the
cutter on the backstroke.
: Hold the file horizontally for all
chain types (at right angle to side of
guide bar) and file according to the
angles marked on the filling tool.
: Avoid touching the tie straps and
drive links with the file.
:
Rotate the file at regular intervals
while filing – this avoids one-sided
wear.
:
Use a piece of hardwood to remove
burrs from cutting edge.
: Check angle with the filing gauge.
All cutters must be the same
length
If the cutters are not the same length,
they will have different heights. This
makes the chain run roughly and
increases the risk of breakage of the
chain.
Find the shortest cutter and then file all
other cutters back to the same length.
90°
This can be very time consuming – it is
best to have this work done in a
workshop on an electric grinder.
Depth gauge setting
The depth gauge determines the height
at which the cutter enters the wood and
thus the thickness of the chip removed.
Distance between depth gauge and
cutting edge:
a = 0.45 mm (0.018").
english / USA
a
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