Poulan 545047535 Chainsaw User Manual


 
5
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
chainsawuser,donotrelyonlyonsafetyde-
vices. You must follow all safety precau-
tions, instructions, and m aintenance in this
manual to help avoid kickback and other
forces which can result in serious injury.
S 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 beendemonstrated tosignificantly re-
duce thenumber andseriousness of kick-
backs when tested in accordance with
safety requirements for gasoline powered
chain saws as set by ANSI B175.1.
Small RadiusTip
Reduced KickbackSymmetricalGuideBar
SymmetricalGuideBar
LargeRadiusTip
S Low--Kickback Chain, designed with a
contoured depth gauge and guard link
which deflect k ickback force and allow
woodtograduallyrideintothecutter .Low--
Kickback Chain has met k ickback per-
formance requirements when tested on a
representative sample of chain saws be-
low 3.8 cubic inch displacement specified
in ANSI B175.1.
Low---Kickback
Chain
Not aLow---KickbackChain
CanObstructMaterial
Contoured D epthGauge
Elongated GuardLink
Deflects
kickbackforce
and allowswood
to gradually ride
into cutter
S Front Hand Guard, designed to reduce the
chance ofyour lefthandcontacting thechain
if your hand slips of f the front handlebar .
S Position of front and rear handlebars, de-
signed with distance between handles and
“in-line”with each other . Thespread and“in-
line” position of the hands provided by this
design work together togivebalance andre-
sistance in controlling the pivot of the saw
back toward the operator if kickback occurs.
CHAIN BRAKE A ND CKA ANGL E
S ChainBrake, designedtostopthechainin
the event of kickback.
WARNING: WE DO NOT REP-
RESENT AND YOU SHOULD NOT AS-
SUME THAT THE CHAIN BRAKE WILL
PROTEC TYOU INTHE E VE NTOF AKICK-
BACK. Kickback is a lightning f ast action
which throws the bar and rotating chain back
and up toward the operator . K ickback can be
caused by allowing contact of the bar tip in the
danger zone with any hard object. Kickback
canalsobecausedbypinchingthesawchain
along the top of theguide bar . This actionmay
push the guide bar rapidly back toward the op-
erator. E ither of these events may cause you
to lose control of the saw which could result in
serious injury or even death. DO NOT REL Y
UPON ANY OF T HE DEVICE S BUILT INTO
YOUR SAW. YOU SHOULD USETHE SAW
PROPERL Y AND CAREFULLY T O A VOID
KICKBACK. Re duced--kickback guide bars
and low--kickback saw chains reduce the
chance and magnitude of kickback and are
recommended. Yo ur saw has a low kickback
chain and bar as original equipment. Repairs
on a chainbrake shouldbe made by anautho-
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 .
S Tipcontactinsomecasesmay causealight-
ning fast reverse REACTION, kicking guide
bar up and back toward operator .
S Pinching the saw chain along the top of the
guide bar may push the guide bar rapidly
back toward the operator.
S 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.
WARNING: C omputed kickback
angle(CKA) listedonyoursaw andlisted inthe
CKA table below represents angle of kickback
your bar and chain combinations w ill h ave
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 angl es represented ind icate total
energy andangleassociatedwithoutactivation
of the chain brake during kickback. Activated
anglerepresentschainstoppingtime relativeto
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.