Stihl 017 Instruction Manual page 46

As these requirements can be met only
after sufficient and constant practice:
Use a file holder.*
A file holder must be used for manual
resharpening of Super chain. The correct
filing angle is marked on the file holder.
90°
85° 70° 80°
60°
30° 35°
10°
For checking angles
STlHL filing gauge* (see table)
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.
44
File correctly
• • • •
If you use a file holder or the FG 1:
Leave the chain on the bar.
• • • •
Clamp the bar in a vise if necessary.
• • • •
Lock the chain - push hand guard
forward
• • • •
To rotate the chain - pull hand
guard against front handle
• • • •
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.
• • • •
The file only sharpens on the
0°
forward stroke -
lift the file off the cutter on the back-
stroke.
• • • •
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 filing 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
90°
burrs from cutting edge.
• • • •
Check angles 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 can
cause it to break.
Find the shortest cutter and then file all
other cutters back to the same length.
This can be very time consuming - it is
best to have it done in the workshop on
an electric grinder.
* Special accessory