Stihl MS 310 Product Instruction Manual - Page 50

For checking angles, File correctly

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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. For checking angles 85° 70° 90° 60° 80° : Sharpen chain frequently, take away as little metal as possible - two or three strokes of the file are usually enough. 689BA022 KN As these requirements can be met only after sufficient and constant practice: : Use a file holder A file holder (special accessory) must be used for manual resharpening (see table "Sharpening Tools"). The correct filing angles are marked on the file holder. 689BA025 KN 689BA018 KN 30° 35° 10° 0° Use a STlHL filing gauge (special accessory - 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. 90° 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 the hand guard against the front handle to disengage the chain brake. On models with QuickStop Super, also press down the throttle trigger interlock lever. : 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 and depth gauge. 689BA043 KN MS 290, MS 310, MS 390 49

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49
MS 290, MS 310, MS 390
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 (special accessory) must be
used for manual resharpening (see table
"Sharpening Tools"). The correct filing
angles are marked on the file holder.
For checking angles
Use a STlHL filing gauge (special
accessory – 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 the hand
guard against the front handle to
disengage the chain brake. On
models with QuickStop Super, also
press down the throttle trigger
interlock lever.
:
Sharpen chain frequently, take
away as little metal as possible –
two or three strokes of the file are
usually enough.
:
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 and depth gauge.
689BA025 KN
90°
60°
85° 70°
80°
0°
35°
10°
30°
689BA022 KN
689BA018 KN
90°
689BA043 KN