Stihl MS 391 Safety Manual page 9

On slopes, always stand above or to the
side of the trunk or felled tree. Watch out
for rolling trunks.
When working above ground level:
– always use a lift bucket
– never work on a ladder
– not in a tree
– not in unsteady locations
– not above shoulder height
– not with one hand
Begin cutting with the saw at full throttle
and engage the bumper spike – then
saw.
Never use the chain saw without the
bumper spike, the saw may pull you
forward suddenly. Always engage the
bumper spike securely.
Chain Saw Safety Manual
At the end of the cut, the chain saw is no
longer supported by the cutting
attachment in the cut. The machine's
weight must be borne by the user – risk
of loss of control!
Felling
Felling may only be carried by persons
who have had special training. Persons
who are not experienced chain saw
users should carry out neither felling nor
limbing – increased risk of accidents!
Comply with national regulations
regarding felling technique.
Only persons who are engaged in felling
may be present in the felling area.
Make certain that no one is endangered
by the falling tree – engine noise can
drown out shouting.
1
1 2 /
2
1 2 /
The distance to the next worksite must
be at least 2 1/2 tree lengths
Determine direction of fall and
escape paths
Select a gap in the timber stand into
which the tree can be felled.
Pay special attention to the following
points:
– the natural inclination of the tree
– unusually heavy limb structure,
asymmetrical growth, damage to
tree
– wind direction and speed – do not
fell trees in high winds
– direction of slope
– neighboring trees
– snow load
– Take the general condition of the
tree into account – be especially
careful with trunk damage or
deadwood (brittle, rotten or dead
wood)
A
1
A direction of fall
B escape paths
English
45°
45°
7