Battery Safety - Stihl MSA 220.0 T Instruction Manual

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B
C
A
► Begin the back cut (C) on the same level as
the bottom of the notch (A).
► Cut horizontally toward the notch.
► Leave approximately 1/10 of the tree's diame‐
ter uncut (B). This is the hinge.
► Do not cut through the hinge – you could lose
control of the direction of fall.
When removing sections of a tree:
► Make sure all bystanders are clear of the area
before starting work.
► Maintain adequate distance from the nearest
structure to prevent property damage from fall‐
ing material.
► Take extra precautions in the vicinity of roads,
railways and power lines. Inform the police,
utility company or railway authority before
beginning to cut.
WARNING
■ Never cut through the hinge when making
your back cut. The hinge helps control the fall
of the tree. Cutting through the hinge will elimi‐
nate your ability to control the fall and may
result in serious or fatal personal injury or
property damage.
■ In order to reduce the risk of personal injury,
never position yourself directly behind the
trunk when it is about to fall, since part of the
trunk may split and come back toward the
operator (barber-chairing), or the tree may
jump back off the stump.
■ Always position yourself and your equipment
away from material being removed.
■ When the material starts to fall, withdraw the
bar and release the trigger switch. After finish‐
ing a cut, activate the chain brake before
changing position in the tree.
WARNING
■ This chain saw is not designed for cutting
large diameter trees, and using it to cut large
diameter trees could result in an inability to
control the fall, which can lead to serious or
fatal personal injury.
18
A B C
■ Before starting any cutting operation, make
sure the saw you are using has sufficient size,
power and run-time to complete the cutting
task efficiently and without re-charging. Alter‐
natively, have multiple charged batteries avail‐
able for use, select a more powerful chain
saw, or select a more powerful battery.
■ There are a number of factors that may affect
the intended direction of fall, e.g., wind direc‐
tion and speed, lean of tree, surrounding trees
and obstacles, sloping ground, wood structure,
or decay.
► To reduce the risk of severe or fatal injury
to yourself or others, look for, analyze and
plan for these conditions prior to beginning
the cut.
► Removing portions of a tree with a diameter
greater than the effective cutting length of
the guide bar requires use of special cutting
techniques (e.g., sectioning method, plunge
cut). These methods can be extremely dan‐
gerous because they involve the use of the
nose of the guide bar and can result in kick‐
back. Only properly trained professionals
should attempt these techniques.
■ Trees that are split, decayed or rotted inside,
or that are leaning or otherwise under tension,
are more likely to snap or split while being cut,
causing serious or fatal injury to the operator
or bystanders.
► Inexperienced users should never attempt
to cut such trees.
► Look for broken or dead branches which
could vibrate loose and fall on the operator.
Certain types of trees are more susceptible
to this condition, such as Douglas firs.
► Always observe and be aware of the gen‐
eral condition of the tree.
8

Battery Safety

8.1 Warnings and Instructions
WARNING
■ Read and follow the safety precautions on the
battery and all warnings and instructions that
accompany it.
■ Use of unauthorized batteries can damage the
power tool and result in fire, explosion and
personal injury and property damage.
► Use only genuine STIHL batteries with this
power tool. For approved battery types, see
chapter 26.1.
■ Use of STIHL AR or AP series batteries for
any purpose other than powering STIHL prod‐
ucts could be extremely dangerous.
8 Battery Safety
0458-007-8201-B