51MS 440, MS 440 W, MS 440 C
English / USA
Furthermore, the angles must be the
same on all cutters. If angles are
uneven: Chain will run roughly, not in a
straight line, wear quickly and finally
break.
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 (see table "Sharpening
Tools"). The correct filing angles are
marked on the file holder.
* see “Guide to Using this Manual”
For checking angles
Use a STlHL filing gauge* (see table
"Sharpening Tools"). This is a universal
tool for checking the filing and side plate
angles, depth gauge setting and cutter
length. It also cleans the guide bar
groove and oil inlet holes.
File correctly
: Select sharpening tools according
to chain pitch.
: Clamp the bar in a vise if necessary.
: Lock the chain – push hand guard
forward.
: To rotate the chain – pull hand guard
against handle.
: Sharpen chain frequently, take
away as little metal as possible –
two or three strokes of the file are
usually enough.
* see “Guide to Using this Manual”
: Hold the file horizontally (at right
angle to side of guide bar) and file
according to the angles marked on
the file holder. Rest the file holder on
the top plate nd depth gauge.
689BA025 KN
90°
60°
85° 70°
80°
0°
35°
10°
30°
689BA022 KN
689BA018 KN
90°
689BA043 KN
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