Stihl MSE 140 C-BQ Product Instruction Manual - Page 38

Maintaining and, Sharpening Saw Chain

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Maintaining and Sharpening Saw Chain English / USA 689BA020 KN 689BA021 KN Correctly sharpened chain A properly sharpened chain slices through wood effortlessly and requires very little feed pressure. Do not work with a dull or damaged chain as it will increase the physical effort required, cause higher vibrations, produce unsatisfactory results and a higher rate of wear. : Clean the chain. : Check the chain for cracks or damaged rivets. : Replace any damaged or worn parts of the chain and match the new parts to the shape and size of the original parts. It is necessary to observe the angles and dimensions specified below. If the saw chain is incorrectly sharpened - especially if the depth gauges are too low - there is an increased risk of kickback and resulting danger of injury. 3/8 The chain pitch (e.g. 3/8") is marked near the depth gauge of each cutter. Use only special saw chain files. Other files have the wrong shape and cut. Select file diameter according to chain pitch - see table "Sharpening Tools". You must also observe the following angles when resharpening the chain cutters. A B A = Filing angle B = Side plate angle Chain type Rapid-Micro (RM) Rapid-Super (RS) Picco-Micro (PM/PMN) Angle (°) AB 30 85 30 60 30 85 Cutter shapes: Micro = Semi-chisel Super = Full chisel Specified angles A and B are more readily obtained if the recommended files or sharpening tools and correct settings are used. MSE 140 C, MSE 160 C, MSE 180 C, MSE 200 C 37

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37
MSE 140 C, MSE 160 C, MSE 180 C, MSE 200 C
English / USA
Correctly sharpened chain
A properly sharpened chain slices
through wood effortlessly and requires
very little feed pressure.
Do not work with a dull or damaged
chain as it will increase the physical
effort required, cause higher vibrations,
produce unsatisfactory results and a
higher rate of wear.
:
Clean the chain.
:
Check the chain for cracks or
damaged rivets.
:
Replace any damaged or worn parts
of the chain and match the new
parts to the shape and size of the
original parts.
It is necessary to observe the
angles and dimensions specified
below. If the saw
chain is
incorrectly sharpened
– especially
if the depth gauges are too low –
there is an increased risk of
kickback and resulting
danger of
injury.
The chain pitch (e.g.
3
/
8
") is marked near
the depth gauge of each cutter.
Use only special saw chain files
.
Other files have the wrong shape and
cut.
Select file diameter according to chain
pitch – see table "Sharpening Tools".
You must also observe the following
angles when resharpening the chain
cutters.
A =
Filing angle
B =
Side plate angle
Cutter shapes:
Micro = Semi-chisel
Super = Full chisel
Specified angles
A
and
B
are more
readily obtained if the recommended
files or sharpening tools and correct
settings are used.
Maintaining and
Sharpening Saw Chain
3/8
689BA020 KN
Chain type
Angle (°)
A
B
Rapid-Micro (RM)
30
85
Rapid-Super (RS)
30
60
Picco-Micro (PM/PMN)
30
85
A
B
689BA021 KN