12
14
Devices for reducing the risk of kickback
STIHL has developes a chain stopping system designed to
reduce the risk of injury
in
a kickback situation. The device
is
called a Quickstop. The Quickstop
is
available
as
an
option
on
many STIHL saws. This device does not prevent
kickback, but will stopthe chain in some kickback situations
if the operator's left hand
is
in
position to activate the Quick-
stop lever
by
contacting the front hand guard.
When a kickback occurs, the chain saw rotates
in
the
plane of the
bar.
The left hand, when properly gripping
the front handle behind the front handguard should engage
the Quickstop lever.This activates the Quickstop and stops
the chain (see ill.
14).
STIHL has developed guide bars with a small radius nose.
These guide bars are designed to reduce the kickback
tendency and are available
as
an option.
STIHL has developed chains with cutters whose configu-
ration are designed to reduce kickback forces. These
chains are available as
an
option.
15
However, even if your saw has a "Quickstop" a narrow
nose bar or a guard-link or a pro-guard chain, it does not
guarantee that you will not
be
injured
by
a "kickback"
arid therefore, you should observe all of the precautions
to
prevent kickback discussed previously.
Wammgl
Chain saw kickback may cause serious or fatal injury.
To
reduce the risk of kickback injuries STIHL recommends
that you equip your saw with a narrow nose
bar,
low profile
chain or other chain designed
to
reduce kickback forces,
and a STIHL QuicRstop.
Pushback:
Pushback occurs when the chain on the top of the bar
is
suddenly stopped when it is pinched, caught or encounters
a foreign object
in
the wood. The reaction of the chain
drives the saw straight back toward the operator causing
loss of saw control. Pushback frequently occurs when
the
top of the bar
is
used for cutting (see ill.
15).
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