Stihl MS170 User Manual

MS 170, MS 170 C, MS 180, MS 180 C
English
21
Conventional Cut
Felling notch (C) – determines the
direction of the fall
For a conventional cut:
N Properly place felling notch
perpendicular to the line of fall,
close to the ground.
N Cut down at approx. 45° angle to a
depth of about 1/5 to 1/4 of the trunk
diameter.
N Make second cut horizontal.
N Remove resulting 45° piece.
Open-face Technique
Felling notch (C) – determines the
direction of the fall
For an open-face cut:
N Properly place felling notch
perpendicular to the line of fall,
close to the ground.
N Cut down at approx. 50° angle to a
depth of approx.1/5 to 1/4 of the
trunk diameter.
N Make second cut from below at
approx. 40 degree angle.
N Remove resulting 90° piece.
Making Sapwood Cuts
N For medium sized or larger trees
make cuts at both sides of the trunk,
at same height as subsequent
felling cut.
N Cut to no more than width of guide
bar.
This is especially important in softwood
in summer – it helps prevent sapwood
splintering when the tree falls.
001BA143 KN
C
C
001BA150 KN

Stihl MS170 Specifications

General

Displacement	30.1 cc
Powerhead Weight	3.9 kg (8.6 lbs)
Sound Pressure Level	100 dB(A)
Engine Power	1.7 bhp
Weight	8.6 lbs
Fuel Capacity	8.5 oz
Chain Oil Capacity	145 ml (4.9 fl oz)
Oilomatic Chain Pitch	3/8 in
Chain Pitch	3/8 in
Guide Bar Length	30-35 cm (12-14 in.)