KICKBACK
SAFETY
FEATURES
_,WARNING:
The following
features
are included on your saw to help reduce the
hazard of kickback;
however,
such features
will not totally
eliminate
this danger.
As a
chain saw user, do not rely only on safety de-
vices,
You must follow
all safety
precau-
tions, instructions,
and maintenance
in this
manual
to help avoid
kickback
and other
forces which can result in serious injury.
• Reduced-Kickback
Guide Bar, designed
with a small radius tip which
reduces
the
size of the kickback
danger
zone on the
bar tip. A Reduced-Kickback
Guide
Bar
has been demonstrated
to significantly
re-
duce the number and seriousness
of kick-
backs
when
tested
in accordance
with
safety requirements
for gasoline
powered
chain saws as set by ANSi B175.1.
Reduced
Kickback
Symmetrical
Guide
Bar
__a,,
Radius
Tip
Symmetrical
Guide
Bar
I_
E
Large
Radius
Tip
• Low-Kickback
Chain,
designed
with
a
contoured
depth
gauge
and guard
link
which
deflect
kickback
force
and allow
wood to gradually
ride into the cutter. Low-
Kickback
Chain
has
met kickback
per-
formance
requirements
when tested
on a
representative
sample of chain saws
be-
low 3.8 cubic inch displacement
specified
in ANSI B175.1,
Contoured
Depth
Gauge
_D
Elongated
Guard
Link
;:;:t:k, ....
Low-Kickback
_
and
allowswood
Chain
to gradually
ride
into
culter
iL_- _'4_Can
ObstructMatedal
Not a Low- KickbackChain
• Front Hand Guard, designed to reduce the
chance of your left hand contacting the chain
if your hand slips off the front handlebar,
• Position
of front and rear handlebars,
de-
signed with distance between
handles and
"in-line" with each other.
The spread and
"in-line" position
of the hands provided
by
this design work together to give balance
and resistance
in controlling
the pivot of
the saw back toward
the operator
if kick-
back occurs.
CHAIN
BRAKE
AND
CKA
ANGLE
• Chain Brake, designed
to stop the chain in
the event of kickback.
AI_,WARNING:
WE DO NOT REP-
RESENT
AND
YOU
SHOULD
NOT
AS-
SUME
THAT
THE
CHAIN
BRAKE
WILL
PROTECT
YOU IN THE EVENT OF A KICK-
BACK,
Kickback
is a lightning fast action
which throws the bar and rotating chain back
and up toward the operator,
Kickback can be
caused by allowing contact of the bar tip in the
danger zone with any hard object,
Kickback
can also be caused by pinching the saw chain
along the top of tt_e guide bar. This action may
push the guide bar rapidly back toward the op-
erator.
Either of these events may cause you
to lose control of the saw which could result in
serious injury or even death.
DO NOT RELY
UPON ANY OF THE DEVICES
BUILT INTO
YOUR SAW. YOU SHOULD
USE THE SAW
PROPERLY
AND CAREFULLY
TO AVOID
KICKBACK.
Reduced-kickback
guide bars
and
low-kickback
saw
chains
reduce
the
chance
and magnitude
of kickback
and are
recommended,
Your saw has a low kickback
chain and bar as original equipment,
Repairs
on a chain brake should be made by an autho-
rized servicing
dealer.
Take your unit to the
place of purchase if purchased from a servic-
ing dealer, or to the nearest authorized master
service dealer.
• Tip contact in some cases may cause a light-
ning fast reverse REACTION,
kicking guide
bar up and back toward operator.
• Pinching the saw chain along the top of the
guide bar may push the guide bar rapidly
back toward the operator.
• Either of these reactions may cause you to
lose control of the saw which could result in
serious injury. Do not rely exclusively
upon
devices built into your saw,
_k WARNING:
Computed
kickback
angle (CKA) listed on your saw and listed in the
CKA table betow represents angle of kickback
your
bar and chain combinations
witl have
when tested in accordance
with CSA (Cana-
dian Standards
Association)
and ANSI stan-
dards. When purchasing replacement bar and
chain, considerations
should
be given to the
lower CKA values, Lower CKA values repre-
sent safer angles to the user, higher values in-
dicate more angle and higher
kick energies.
Computed
angles
represented
indicate total
energy and angle associated without activation
of the chain brake during kickback,
Activated
angle represents chain stopping time relative to
activation
angle of chain break and resulting
kick angle of saw, in all cases lower CKA val-
ues represent
a safer operating environment
for the user.
The following guide bar and chain combina-
tions
meet
kickback
requirements
of CSA
Standards Z62,1, Z62.3, & ANSI B175.1 when
used on saws listed in this manual. Use of bar
and chain combinations
other than those listed
is not recommended
and may not meet the
CKA requirements
per standard,