Stihl MSA 160 C Instruction Manual page 81

Tooth shapes
Micro = semi-chisel tooth
When the specified files and/or
sharpening tools and the proper setting
are used, the specified values for angles
A and B will be attained automatically.
The angles must be identical for all
cutters in the saw chain. Varying angles:
Rough, uneven running of the saw
chain, increased wear – even to the
point of saw chain breakage.
Because these requirements can be met
only after sufficient, constant practice:
Use a file holder
N
Always use a file holder (special
accessory, see table "Sharpening tools")
when sharpening saw chains by hand.
File holders have markings for the
sharpening angle.
MSA 160 C
To check the angles
STIHL filing gauge (special accessory,
see table "Sharpening tools") – a
universal tool for checking sharpening
and side plate angles, depth gauge
setting, and tooth length, as well as
cleaning grooves and oil inlet holes.
Proper sharpening
Remove the battery from the
N
machine
Select sharpening tools in
N
accordance with chain pitch
Clamp guide bar if necessary
N
To advance the saw chain, set the
N
chain saw hand guard to ‚ – chain
brake is released
Sharpen frequently, removing little
N
material – two or three strokes of the
file are usually sufficient for simple
resharpening
Guide the file: horizontally (at a right
N
angle to the side surface of the
guide bar) in accordance with the
specified angle – according to the
markings on the file holder – rest the
file holder on the tooth head and the
depth gauge
File only from the inside outward
N
The file only sharpens on the
N
forward stroke – lift the file on the
backstroke
Do not file tie straps and drive links
N
Rotate the file a little periodically in
N
order to avoid uneven wear
To remove file burr, use a piece of
N
hardwood
Check angle with file gauge
N
All cutters must be equally long.
English
90°
79