Stihl MS 200 Instruction Manual page 36

English
The chain pitch marking (a) is embossed
in the area of the depth gauge of each
cutter.
Marking (a) Chain pitch
Inches
1/4 or 1 1/4
P, PM or 6 3/8 P
325 or 2 0.325
3/8 or 3 3/8
404 or 4 0.404
Use only special saw chain files!
Other files are unsuitable in terms of
shape and type of cutting.
The diameter of file to be used depends
on the chain pitch – see table
"Sharpening tools"
The angles of the cutter must be
maintained during resharpening.
A
B
A Sharpening angle
B Side plate angle
34
Chain Type
Rapid Micro (RM)
a
Rapid Super (RS)
Picco Micro (PM)
Rapid Micro X (RMX, rip-
ping chain)
Picco Micro X (PMX, rip-
ping chain)
Tooth shapes
Micro = semi-chisel tooth
Super = chisel tooth
mm
When the specified files and/or
6.35
sharpening tools and the proper setting
9.32
are used, the specified values for angles
8.25 A and B will be attained automatically.
9.32
The angles must be identical for all
10.26
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:
N Use a file holder
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.
To check the angles
Angle (°)
A B
30 75
30 60
30 75
10 75
10 75
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
N Select sharpening tools in
accordance with chain pitch
N Clamp guide bar if necessary
N
Block saw chain – push the hand
guard forward
N To advance the saw chain, pull the
hand guard toward the handlebar:
The chain brake is disengaged.
With the Quickstop Super chain
brake system, additionally press the
throttle trigger lockout
N Sharpen frequently, removing little
material – two or three strokes of the
file are usually sufficient for simple
resharpening
MS 200