Instruction Manual
Table Of Contents
- STIHL MS 171, 181, 211
- 1 Guide to Using this Manual
- 2 Safety Precautions
- 3 Reactive Forces
- 4 Working Techniques
- 5 Cutting Attachment
- 6 Mounting the Bar and Chain (side chain tensioner)
- 7 Mounting the Bar and Chain (quick chain tensioner)
- 8 Tensioning the Saw Chain (side chain tensioner)
- 9 Tensioning the Saw Chain (quick chain tensioner)
- 10 Checking Chain Tension
- 11 Fuel
- 12 Fueling
- 13 Chain Lubricant
- 14 Filling Chain Oil Tank
- 15 Checking Chain Lubrication
- 16 Chain Brake
- 17 Winter Operation
- 18 Starting / Stopping the Engine
- 18.1 Positions of the master control lever
- 18.2 Adjusting the master control lever
- 18.3 Fuel pump
- 18.4 Holding the chain saw
- 18.5 Starting
- 18.6 Starting the chain saw
- 18.7 When the engine has turned over for the first time
- 18.8 Once the engine is running
- 18.9 At very low temperatures
- 18.10 Switch off the engine
- 18.11 If the engine does not start
- 19 Operating Instructions
- 20 Taking Care of the Guide Bar
- 21 Shroud
- 22 Air Filter System
- 23 Cleaning the Air Filter
- 24 Adjusting the Carburetor
- 25 Spark Arresting Screen in Muffler
- 26 Spark Plug
- 27 Engine Running Behavior
- 28 Storing the Machine
- 29 Checking and Replacing the Chain Sprocket
- 30 Maintaining and Sharpening the Saw Chain
- 31 Maintenance and Care
- 32 Main Parts
- 33 Specifications
- 34 Ordering Spare Parts
- 35 Maintenance and Repairs
- 36 Disposal
- 37 EC Declaration of Conformity
Select suitable felling wedges dependent on the
trunk diameter and the width of the kerf (ana‐
logue to felling cut (E)).
Contact the STIHL dealer for the selection of the
felling wedge (suitable length, width and height).
4.6 Selecting the appropriate felling
cut
The selection of the appropriate felling cut is
dependent on the same tree characteristics that
must be noted when determining the direction of
fall and the escape paths.
There are various different features of these
characteristics. This User Manual will only
describe the two most commonly occurring var‐
iants:
001BA260 KN
left: Normal tree – vertically upright tree
with uniform crown
right: Leaner tree - crown pointing in direc‐
tion of fall
4.7 Felling cut with stabilizing strap
(normal tree)
A) Thin trunks
Implement this felling cut when the trunk diame‐
ter is smaller than the cutting length of the chain‐
saw.
001BA261 KN
1.
2.
Shout a warning before starting the felling cut.
► Plunge cut the felling cut (E) – plunge the
guide bar fully in
► Engage the spiked bumper behind the hinge
and use this as the rotation point – reposition
the chainsaw as little as possible
► Make the felling cut up to the hinge (1)
–
Do not cut into the hinge
► Make the felling cut up to the stabilizing
strap (2)
–
Do not cut into the stabilizing strap
001BA273 KN
3.
► Set the felling wedge (3)
Shout a second warning immediately before the
tree falls.
► Cut through the stabilizing strap, horizontal
level with the felling cut, with arms fully exten‐
ded
B) Thick trunks
Implement this felling cut when the trunk diame‐
ter is greater than the cutting length of the
machine.
001BA263 KN
4.
5.
1.
2.
3.
Shout a warning before starting the felling cut.
► Engage the spiked bumper at the height of the
felling cut and use this as the rotation point –
reposition the chainsaw as little as possible
► Tip of the guide bar must penetrate the wood
before the hinge (1) – guide the chainsaw
absolutely horizontally and swivel as widely as
possible
► Make the felling cut up to the hinge (2)
–
Do not cut into the hinge
► Make the felling cut up to the stabilizing
strap (3)
4 Working Techniques English
0458-533-8321-E 13