Reactive Forces - Stihl HTA 66 Notice D'emploi

English
the moving saw chain. They may cause seri‐
ous injury to persons.
► Hold the pole pruner firmly with both hands
and wait until the saw chain comes to a
standstill.
■ In an emergency, the user may start to panic
and forget to take off the carrying system. This
may result in serious injury to the user.
► Practice taking off the carrying system.
WARNING
B
2
If you saw wood which is under tension, the
■
guide bar may become jammed. The user may
lose control of the pole pruner and be seri‐
ously injured.
► First make a relief cut (1) on the compres‐
sion side (A), then a separating cut (2), off‐
set in the direction of the trunk, on the ten‐
sion side (B).
DANGER
■ Working near live electric cables may result in
accidental contact with the saw chain and
damage the cables. This may result in serious
or fatal injury to the user.
► Maintain a clearance of 15 meters
from live cables.
4.7.2 Limbing
34
1
A
max 60°
WARNING
■ During delimbing the sawn-off branch may fall
to the ground. This may result in serious injury
to the user.
► Do not stand under the branch which you
are sawing.
► Maintain an angle of no more than 60° to
the horizontal.
4.8

Reactive Forces

4.8.1 Kickback
Kickback can be caused for the following rea‐
sons:
– The rotating saw chain in the upper quadrant
of the bar nose makes contact with a hard
object and is suddenly braked.
– The rotating saw chain is pinched at the bar
nose.
WARNING
If kickback occurs, the pole pruner can be
■
thrown upwards and backwards. The user can
lose control of the pole pruner and be seri‐
ously injured.
► Always hold your pole pruner firmly with
both hands.
► Always keep your body out of the plane of
the cutting attachment.
► Use the working techniques described in
this instruction manual.
► Do not cut with the upper quadrant of the
bar nose.
► Always cut with a properly sharpened and
tensioned saw chain.
► Use a reduced kickback saw chain.
4 Safety Precautions
0458-191-9621-B